Author: claimsbot

1. A gate valve for controlling fluid flow, comprising:
a valve body forming a cylindrical flowbore extending through the body and a gate cavity intersecting the flowbore to provide opposed openings into the flowbore, the valve body forming a seat pocket in each of the opposed openings, each seat pocket having a radial base and a side wall;
an optional metal carrier ring mounted in sealing relationship to the valve body in each seat pocket;
a gate slidably movable across the flowbore within the valve body between an open and closed position, and having a planar face on each side;
a floating annular seat element mounted in each seat pocket for limited axial movement therein on opposite sides of the gate, each seat element forming opposing seal surfaces, including a first seal surface for sealing against the radial base of the seat pocket or against the carrier ring if present, and a second seal surface for sealing against the planar face of the gate, the annular seat element maintaining sealing engagement between the gate and the seat pocket, or the carrier ring if present, as the gate is moved between its open and closed positions; and
a non-metallic bridging seal formed as a face seal between the first seal surface of each annular seat element and, either the radial base of the seat pocket, or the carrier ring if present, said bridging seal being adapted to bridge any gap formed at the first seal surface of the annular seat element such that sealing engagement is maintained across said gap at all times as the gate is moved between the open and closed positions, while still permitting the limited axial movement of the annular seat element.
2. The gate valve as set forth in claim 1, wherein the bridging seal is a tongue and groove seal formed between the first seal surface of each annular seat element and, either the radial base of the seat pocket, or the carrier ring if present, the tongue and groove seal maintaining sealing engagement within the seat pocket while still permitting the limited axial movement of the annular seat element.
3. The gate valve as set forth in claim 2, wherein:
a) the tongue of the tongue and groove seal is provided by an annular lip formed on a metallic or non-metallic tongue-forming ring insert installed in the radial base of the seat pocket, or the carrier ring if present, and the groove is provided by a non-metallic generally U-shaped ring seal seated in a first annular groove provided in the first seal surface of the annular seat element opposite the annular lip; or
b) the tongue of the tongue and groove seal is provided by an annular lip formed on a metallic or non-metallic tongue-forming ring insert installed in the annular seat element, and the groove is provided by a non-metallic generally U-shaped ring seal seated in a first annular groove provided in either the radial base of the seat pocket, or the carrier ring, if present, opposite the annular lip.
4. The gate valve of claim 3, wherein the tongue-forming ring inserts are held an interference fit with an annular groove formed in the radial base of the seat pocket, or the carrier ring if present.
5. The gate valve of claim 4, wherein the tongue-forming ring inserts are metallic.
6. The gate valve of claim 5, which further comprises:
a secondary non-metallic ring seal in the form of a U-ring located in an annular groove formed in the annular seat element, or in the seat pocket or in the carrier ring if present, the secondary ring seal being formed as one or more of:
i) a corner seal at or adjacent the periphery edge of each annular seat element;
ii) a face seal on the first seal surface of the annular seat element located on either or both sides of the non-metallic bridging seal; or
iii) an outside diameter seal at the outside diameter of the annular seat element.
7. The gate valve as set forth in claim 6, wherein each annular seat element is formed with a central bore aligned with the flowbore of the valve body.
8. The gate valve as set forth in claim 7, wherein the tongue of the tongue and groove seal extends into the groove with a depth that is greater than the limited axial movement permitted by the sum of all the gaps along the flowbore axis of the annular seat elements between the gate, the annular seat elements, the seat pockets and the carrier rings, if present.
9. The gate valve as set forth in claim 8, wherein the secondary ring seal U-ring has a base portion and leg portions, wherein the U-ring is oriented in the annular groove such that the leg portions open away from the tongue and groove seal.
10. The gate valve as set forth in claim 9, wherein the secondary ring seal U-ring is shaped so as to vent pressure build up between the tongue and groove seal and the U-ring.
11. The gate valve as set forth in claim 10, wherein the U-shaped ring seals of the tongue and groove seal and the secondary ring seal U-rings are formed of a thermoplastic material.
12. The gate valve as set forth in claim 10, wherein the U-shaped ring seals of the tongue and groove seal and the secondary ring seal U-rings are formed of a polytetrafluoroethylene based material or a polyetheretherketone based material.
13. The gate valve as set forth in claim 12, wherein the carrier rings are present, and the gate valve further comprises a ring seal between the carrier ring and the radial base of the seat pocket.
14. The gate valve as set forth in claim 8, wherein the carrier rings are present, and wherein the gate valve further comprises a ring seal between the carrier ring and the radial base of the seat pocket.
15. The gate valve as set forth in claim 1, wherein the carrier rings, if present, may include a ring seal to the radial base of the seat pocket.
16. The gate valve as set forth in claim 15, wherein the bridging seal includes:
a first annular groove formed either on the first seal surface of the annular seat member or, on the radial base or carrier ring if present;
a second annular groove formed in the member opposite the first annular groove, said second annular groove being aligned with the first annular groove; and
a non-metallic bridge ring insert held in each of the first and second annular grooves so as to bridge any gap at the first seal surface such that sealing engagement is maintained across said gap at all times as the gate is moved between the open and closed positions.
17. The gate valve as set forth in claim 16, wherein each annular seat element is formed with a central bore aligned with the flowbore of the valve body such that the first seal surface of the annular seat element has a periphery edge opposite its flowbore edge, and wherein the gate valve further comprises a secondary ring seal formed as a) a corner seal at or adjacent the periphery edge of each annular seat element, b) a face seal on the first seal surface of the annular seat element, or c) an outside diameter seal at the outside diameter of the annular seat element.
18. The gate valve as set forth in claim 17, wherein the secondary ring seal comprises an O-ring seal formed as a corner, face or outside diameter seal.
19. The gate valve as set forth in claim 17, wherein the secondary ring seal comprises an O-ring or a U-ring seal formed as a corner, face or outside diameter seal.
20. The gate valve as set forth in claim 19, wherein the bridge ring insert extends into the first and second annular grooves with a depth that is greater than the limited axial movement permitted by the sum of all the gaps along the flowbore axis of the annular seat elements between the gate, the annular seat elements, the seat pockets and the carrier rings, if present.
21. The gate valve as set forth in claim 20, wherein one of the first and second annular grooves is radially larger than the other, and wherein a portion of the bridge ring insert is likewise radially larger to mate with the radially larger of the first and second annular grooves.
22. The gate valve as set forth in claim 20, wherein the bridge ring insert comprises:
a pair of opposing, aligned, non-metallic, U-shaped ring inserts held between and in the first and second annular grooves, the U-shaped ring inserts having leg portions which face each other in abutting relationship to form a generally rectangular space therebetween; and
a generally rectangular ring insert held in tight fitting relationship enclosed in the rectangular space.
23. The gate valve as set forth in claim 22, wherein the U-shaped ring inserts are formed of a thermoplastic material, and the rectangular ring insert is formed of a metallic or thermoplastic material.
24. The gate valve as set forth in claim 22, wherein the U-shaped ring inserts are formed of a thermoplastic material, and the rectangular ring insert is formed of a metallic or thermoplastic material.
25. The gate valve as set forth in claim 20, wherein the bridge ring insert is formed of a thermoplastic material.
26. The gate valve as set forth in claim 25, wherein the bridge ring seal is formed of a polytetrafluoroethylene based material or a polyetheretherketone based material.
27. The gate valve as set forth in claim 16, wherein the bridge ring insert comprises:
a pair of opposing, aligned, non-metallic, U-shaped ring inserts held between and in the first and second annular grooves, the U-shaped ring inserts having leg portions which face each other in abutting relationship to form a generally rectangular space therebetween; and
a generally rectangular ring insert held in tight fitting relationship enclosed in the rectangular space.
28. A gate valve as set forth in claim 1, further comprising:
a secondary non-metallic ring seal in the form of a U-ring located in an annular groove formed in the annular seat element, or in the seat pocket or in the carrier ring if present, the secondary ring seal being formed as one or more of:
i) a corner seal at or adjacent the periphery edge of each annular seat element;
ii) a face seal on the first seal surface of the annular seat element located on either or both sides of the non-metallic bridging seal; or
iii) an outside diameter seal at the outside diameter of the annular seat element.
29. The gate valve as set forth in claim 28, wherein the bridging seal is a tongue and groove seal formed between the first seal surface of each annular seat element and, either the radial base of the seat pocket, or the carrier ring if present, the tongue and groove seal maintaining sealing engagement within the seat pocket while still permitting the limited axial movement of the annular seat element.
30. The gate valve as set forth in claim 29, wherein:
a) the tongue of the tongue and groove seal is provided by an annular lip formed on either the radial base of the seat pocket, or the carrier ring if present, and the groove is provided by a non-metallic generally U-shaped ring seal seated in a first annular groove provided in the first seal surface of the annular seat element opposite the annular lip; or
b) the tongue of the tongue and groove seal is provided by an annular lip formed on the first seal face of the annular seat element, and the groove is provided by a non-metallic generally U-shaped ring seal seated in a first annular groove provided in either the radial base of the seat pocket, or the carrier ring, if present, opposite the annular lip; or
c) the tongue of the tongue and groove seal is provided by an annular lip formed on a metallic or non-metallic tongue-forming ring insert installed in the radial base of the seat pocket, or the carrier ring if present, and the groove is provided by a non-metallic generally U-shaped ring seal seated in a first annular groove provided in the first seal surface of the annular seat element opposite the annular lip; or
d) the tongue of the tongue and groove seal is provided by an annular lip formed on a metallic or non-metallic tongue-forming ring insert installed in the annular seat element, and the groove is provided by a non-metallic generally U-shaped ring seal seated in a first annular groove provided in either the radial base of the seat pocket, or the carrier ring, if present, opposite the annular lip.
31. The gate valve as set forth in claim 30, wherein each annular seat element is formed with a central bore aligned with the flowbore of the valve body.
32. The gate valve as set forth in claim 31, wherein the tongue of the tongue and groove seal extends into the groove with a depth that is greater than the limited axial movement permitted by the sum of all the gaps along the flowbore axis of the annular seat elements between the gate, the annular seat elements, the seat pockets and the carrier rings, if present.
33. The gate valve as set forth in claim 32, wherein the radial base, or the carrier ring if present, is formed with secondary annular grooves to accept the leg portions of the generally U-shaped ring seals.
34. The gate valve as set forth in claim 32, wherein the secondary ring seal U-ring has a base portion and leg portions, wherein the U-ring is oriented in the annular groove such that the leg portions open away from the tongue and groove seal.
35. The gate valve as set forth in claim 34, wherein the secondary ring seal U-ring is shaped so as to vent pressure build up between the tongue and groove seal and the U-ring.
36. The gate valve as set forth in claim 35, wherein the U-shaped ring seals of the tongue and groove seal and the secondary ring seal U-rings are formed of a thermoplastic material.
37. The gate valve as set forth in claim 35, wherein the U-shaped ring seals of the tongue and groove seal and the secondary ring seal U-rings are formed of a polytetrafluoroethylene based material or a polyetheretherketone based material.
38. The gate valve as set forth in claim 37, wherein the carrier rings are present, and the gate valve further comprises a ring seal between the carrier ring and the radial base of the seat pocket.
39. The gate valve as set forth in claim 32, wherein the carrier rings are present, and wherein the gate valve further comprises a ring seal between the carrier ring and the radial base of the seat pocket.
40. The gate valve as set forth in claim 1, further comprising:
a secondary non-metallic seal located in an annular groove formed in the annular seat element, or in the seat pocket or the carrier ring if present, the secondary seal being formed as a face seal on the first seal surface of the annular seat element, and being located on the flowbore side of the bridging seal.
41. The gate valve as set forth in claim 40, wherein the bridging seal is a tongue and groove seal formed between the first seal surface of each annular seat element and, either the radial base of the seat pocket, or the carrier ring if present, the tongue and groove seal maintaining sealing engagement within the seat pocket while still permitting the limited axial movement of the annular seat element.
42. The gate valve as set forth in claim 41, wherein:
a) the tongue of the tongue and groove seal is provided by an annular lip formed on either the radial base of the seat pocket, or the carrier ring if present, and the groove is provided by a non-metallic generally U-shaped ring seal seated in a first annular groove provided in the first seal surface of the annular seat element opposite the annular lip; or
b) the tongue of the tongue and groove seal is provided by an annular lip formed on the first seal face of the annular seat element, and the groove is provided by a non-metallic generally U-shaped ring seal seated in a first annular groove provided in either the radial base of the seat pocket, or the carrier ring, if present, opposite the annular lip; or
c) the tongue of the tongue and groove seal is provided by an annular lip formed on a metallic or non-metallic tongue-forming ring insert installed in the radial base of the seat pocket, or the carrier ring if present, and the groove is provided by a non-metallic generally U-shaped ring seal seated in a first annular groove provided in the first seal surface of the annular seat element opposite the annular lip; or
d) the tongue of the tongue and groove seal is provided by an annular lip formed on a metallic or non-metallic tongue-forming ring insert installed in the annular seat element, and the groove is provided by a non-metallic generally U-shaped ring seal seated in a first annular groove provided in either the radial base of the seat pocket, or the carrier ring, if present, opposite the annular lip.
43. The gate valve as set forth in claim 42, wherein each annular seat element is formed with a central bore aligned with the flowbore of the valve body.
44. The gate valve as set forth in claim 43, wherein the tongue of the tongue and groove seal extends into the groove with a depth that is greater than the limited axial movement permitted by the sum of all the gaps along the flowbore axis of the annular seat elements between the gate, the annular seat elements, the seat pockets and the carrier rings, if present.
45. The gate valve as set forth in claim 44, wherein the radial base, or the carrier ring if present, is formed with secondary annular grooves to accept the leg portions of the generally U-shaped ring seals.
46. The gate valve as set forth in claim 44, wherein the secondary seal is one or more of an O-ring seal, U-ring seal, or a wiper seal.
47. The gate valve as set forth in claim 44, wherein the secondary seal is an U-ring seal.
48. The gate valve as set forth in claim 47, wherein the secondary U-ring seal is shaped to vent pressure build up between the tongue and groove seal and the secondary seal.
49. The gate valve as set forth in claim 48, wherein the U-shaped ring seals of the tongue and groove seal are formed of a thermoplastic material.
50. The gate valve as set forth in claim 48, wherein the U-shaped ring seals of the tongue and groove seal are formed of a polytetrafluoroethylene based material or a polyetheretherketone based material.
51. The gate valve as set forth in claim 50, wherein the carrier rings are present, and wherein the gate valve further comprises a ring seal between the carrier ring and the radial base of the seat pocket.
52. The gate valve as set forth in claim 50, wherein the carrier rings are present, and wherein the gate valve further comprises a ring seal between the carrier ring and the radial base of the seat pocket.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A vehicle capable of moving on land, in air andor in water comprises at least a fuselage, a main engine or a main electric engine and a power control and transmitting system; said vehicle having the characteristic of: on the two sides of said fuselage there are main shafts stretching out, said main shafts having blade sleeves fixed thereon, said blade sleeves having blade handles installed thereinthereon in a way that said blade handles can spin on own central axes, said blade handles having blades fixed thereto, said fuselage andor said main shafts having blade open-close devices installed thereon to control the spinning of said blade handles and said blades relative to said blade sleeves and said main shafts; and wherein said blade open-close devices are mechanisms that can open and close said blades once during each cycle said blades rotate along with said main shafts, wherein when said blades are opened, said blades’ broad flat surfaces are parallel or nearly parallel with said main shafts, and when said blades are closed, said blades’ broad flat surfaces are vertical or nearly vertical to said main shafts.
2. A vehicle as claimed in claim 1, wherein said blade open-close devices comprise at least controlled gears and controlling gears, said controlled gears being gears fixed on said blade handles or being gears connected with the gears fixed on said blade handles through chain-like structures, said controlling gears being teethed rings surrounding and perpendicular to main shafts and installed on said fuselage and each having teeth covering a whole circle, and wherein said controlled gears are engaged with said controlling gears, and the teeth number of each said controlling gear is one second of that of its corresponding gear fixed a blade handle.
3. A vehicle as claimed in claim 1, wherein said blade open-close devices comprise at least controlled gears and controlling gears, said controlled gears being gears fixed on said blade handles or being gears connected with the gears fixed on said blade handles through chain-like structures, said controlling gears being teethed ring segments installed on said fuselage and perpendicular to said main shafts, and wherein when said blades rotating along with said main shafts pass one of said controlling gears, one of said controlled gears can contact and be engaged with this controlling gear, and the teeth number of each controlling gear is one fourth of that of its corresponding gear fixed on a blade handle.
4. A vehicle as claimed in claim 1, wherein each said blade open-close device comprises at least a gear fixed on one of said blade handles; a pushing bar fixed at and being rotatable around an eccentric point on this gear or on a gear that, through a chain-like structure connects with this gear; and a raised ring segment installed on one side of the fuselage; and wherein when rotating to the position of said raised ring segment, one end of said pushing bar can contact with said raised ring segment.
5. A vehicle as claimed in claim 1, wherein said blade open-close device comprises at least an electric motor or electromagnet; one or two or more than two ring segment-shaped parallel switches controlling the circuit of said electric motor or electromagnet and fixed on a blade handle or on a switch handle that connects with this blade handle through a chain-like structure and rotates with this blade handle; and ring segment-shaped conductive tracks made of conductive material and installed on one side of the fuselage; and wherein when the blade handle or the switch handle rotates to the location of one of said conductive tracks, the switch facing this conductive track can contact the conductive track and make the circuit of the electric motor or electromagnet connected.
6. A vehicle as claimed in claim 1, wherein each said blade open-close device comprises at least an electric motor or electromagnet; one or two or more than two switch buttons controlling said electric motor or electromagnet and fixed on a blade handle or on a switch handle that connects with blade handles through a chain-like structure and rotate with blade handles; and pressing ring segments or pressing bars using a main shaft as their circle center and installed on one side of the fuselage; and wherein when the switch handle rotates to the location of one of said pressing ring segments or one of said pressing bars, the switch button facing this pressing ring segment or pressing bar can contact this pressing ring segment or this pressing bar, making the circuit of the electric motor or electromagnet change its connection status or its current direction.
7. A vehicle as claimed in claim 1, wherein each said blade open-close device comprises at least an electric motor or electromagnet; one or two or more than two light-inducible (or sound-inducible) parallel switches or one or two or more than two light-receiving (or sound-receiving) windows of a ling-inducible (or sound-inducible) switch controlling the circuit of said electric motor or electromagnet and fixed on a blade handle or on a switch handle that connects with a blade handle through a chain-like structure and rotates with this blade handle; and light-producing (or sound-producing) ring segments fixed on one side of the fuselage; and wherein when the switch handle along with a main shaft rotates to one of the light-producing (or sound-producing) ring segments, a light-inducible (or sound-inducible) switch or a light-receiving (or sound-receiving) window of a switch can receive the inducing signal produced by the light-producing (or sound-producing) ring segment, making the circuit of said electric motor or electromagnet get connected.
8. A vehicle as claimed in claim 1, wherein said fuselage has two or more than two main shafts, wherein the blades on some of said main shafts open in an angle region surrounding a horizontal plane and by adjusting the rotational speed and direction of these main shafts the magnitude and direction of the vertical thrust can be controlled, while the blades on some other main shafts open in an angle region surrounding a vertical plane and by adjusting the rotational speed and direction of these main shafts the magnitude and direction of the horizontal thrust can be controlled.
9. (canceled)
10. (canceled)
11. (canceled)

1. A container closure comprising:
a cap body for attaching the closure to a container;
a spout extending outwardly from the cap body to a nozzle; and
a tip integrally molded with the spout at a break-away junction so as to form an integral piece therewith, the break-away junction being recessed from the nozzle, the tip extending outwardly from the nozzle to an end;
wherein the tip includes a top portion and a bottom portion integrally molded in one piece, the top portion including a cavity that is open at the end of the tip such that the top portion is more flexible than the bottom portion.
2. The container closure of claim 1, wherein the cavity in the top portion of the tip comprises a plurality slots defined by interposed fingers.
3. The container closure of claim 2, wherein the fingers are hollow.
4. The container closure of claim 2, wherein the fingers are solid.
5. The container closure of claim 1, wherein the bottom portion of the tip comprises walls defining a cavity.
6. The container closure of claim 1, wherein the bottom portion of the tip is solid.
7. The container closure of claim 1, wherein the spout comprises an orifice smaller than the nozzle, and wherein the break-away junction is defined by a thin-walled section located between the orifice and the nozzle.
8. The container closure of claim 7, wherein the orifice remains intact when the break-away junction is fractured to form a mouth that is larger than the orifice.
9. A container closure comprising:
a cap body for attaching the closure to a container;
a spout extending outwardly from the cap body to a nozzle; and
a tip integrally molded with the spout at a break-away junction so as to form an integral piece therewith, the tip extending outwardly from the nozzle to an end and including a top portion and a bottom portion integrally molded in one piece, the top portion including a cavity that is open at the end of the tip such that the top portion is more flexible than the bottom portion;
wherein the spout comprises an orifice smaller than the nozzle, the orifice remaining intact when the break-away junction is fractured to form a mouth that is larger than the orifice.
10. The container closure of claim 9, wherein the break-away junction is recessed from the nozzle, the break-away junction being defined by a thin-walled section disposed between the nozzle and the orifice.
11. The container closure of claim 10, wherein the cavity in the top portion of the tip comprises a plurality slots defined by interposed fingers.
12. The container closure of claim 10, wherein the bottom portion of the tip comprises walls defining a cavity.
13. The container closure of claim 10, wherein the bottom portion of the tip is solid.
14. A container comprising:
a spout having a dispensing nozzle;
a tip integrally molded with the spout at a break-away junction recessed from the nozzle so as to form an integral piece with the spout, the tip extending outwardly from the nozzle to an end and including a top portion and a bottom portion integrally molded in one piece, the top portion including a cavity that is open at the end of the tip such that the top portion is more flexible than the bottom portion; and
an orifice within the spout, the orifice being smaller than the nozzle, the break-away junction being disposed between the orifice and the nozzle, such that the orifice remains intact when the tip is broken away from the spout at the break-away junction.
15. The container closure of claim 1, wherein the tip further comprises a solid plug stop joining the top portion and the bottom portion of the tip, the cavity in the top portion having walls extending away from the plug stop to the open end of the cavity in the top portion opposite the plug stop, the bottom portion having walls extending away from the plug stop and defining a cavity opening into the spout.
16. The container closure of claim 9, wherein the tip further comprises a solid plug stop joining the top portion and the bottom portion of the tip, the cavity in the top portion having walls extending away from the plug stop to the open end of the cavity in the top portion opposite the plug stop, the bottom portion having walls extending away from the plug stop and defining a cavity opening into the spout.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A sensor circuit comprising:
a sensor element which outputs an output signal that has a first temperature coefficient based on an external factor;
an amplifier circuit which amplifies the output signal of the sensor element, and which outputs an output signal that has a second temperature coefficient based on the first temperature coefficient;
a reference voltage circuit which includes a voltage divider circuit and a temperature compensating resistor, and which outputs a reference voltage, the voltage divider circuit including a plurality of resistors that have the same temperature coefficient, the temperature compensating resistor having a temperature coefficient different from the temperature coefficient of the plurality of resistors, the reference voltage having a third temperature coefficient, which is substantially equal to the second temperature coefficient; and
a comparator circuit which compares the output signal of the amplifier circuit and the reference voltage of the reference voltage circuit to output one of a High signal and a Low signal when the output signal of the amplifier circuit is equal to or larger than the reference voltage of the reference voltage circuit, and to output another one of the Low signal and the High signal when the output signal of the amplifier circuit is smaller than the reference voltage of the reference voltage circuit.
2. A sensor circuit according to claim 1, wherein the sensor element includes a Hall element that outputs an output signal based on a magnetic flux density and direction of an applied magnetic field.
3. A sensor circuit according to claim 1, further comprising a first switch circuit which cuts off power supply to the reference voltage circuit.
4. A sensor circuit according to claim 1, wherein the sensor element outputs an output signal based on the external factor and a supply voltage.
5. A sensor circuit according to claim 1, wherein the reference voltage circuit includes:
a first resistor, a second resistor, a third resistor, and a fourth resistor which are serially connected in the stated order between a supply terminal and a ground terminal;
a reference voltage terminal which is placed at a connection point between the second resistor and the third resistor;
a first output terminal which is placed at a connection point between the first resistor and the second resistor;
a second output terminal which is placed at a connection point between the third resistor and the fourth resistor; and
the temperature compensating resistor which is placed between the first output terminal and the second output terminal.
6. A sensor circuit according to claim 1, wherein the reference voltage circuit includes:
a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, and an eighth resistor which are serially connected in the stated order between a supply terminal and a ground terminal;
a reference voltage terminal which is placed at a connection point between the fourth resistor and the fifth resistor;
a fifth output terminal which is placed at a connection point between the first resistor and the second resistor;
a first output terminal which is placed at a connection point between the second resistor and the third resistor;
a second output terminal which is placed at a connection point between the third resistor and the fourth resistor;
a third output terminal which is placed at a connection point between the fifth resistor and the sixth resistor;
a fourth output terminal which is placed at a connection point between the sixth resistor and the seventh resistor;
a sixth output terminal which is placed at a connection point between the seventh resistor and the eighth resistor; and
the temperature compensating resistor which is placed between the fifth output terminal and the sixth output terminal.