Author: claimsbot

What is claimed is:

1. A vent apparatus adapted for use with a fuel tank to control venting of fuel vapor from the fuel tank, the vent apparatus comprising
a fuel vapor vent outlet to discharge fuel vapor from the fuel tank,
a normally open first valve module to serve as a fuel fill limit valve and close when the liquid level in the tank reaches a predetermined fill limit, and
a normally open second valve module to serve as a fuel fill limit valve and close when the liquid level in the tank reaches the predetermined fill limit, the first valve module and the second valve module cooperating to block communication between the fuel tank and the fuel vapor vent outlet when the vent apparatus is positioned in a non-tilted orientation relative to a horizontal and the level of liquid fuel in the fuel tank reaches the predetermined fill limit to close both valve modules.
2. The vent apparatus of claim 1, wherein the second valve module is interposed between the first valve module and the fuel vapor vent outlet in series with the first valve module.
3. The vent apparatus of claim 1, further comprising a housing adapted to be coupled to the fuel tank, the housing having the fuel vapor vent outlet, a first chamber for the first valve module, and a second chamber for the second valve module.
4. The vent apparatus of claim 3, wherein the housing has a first wall and a second wall, the first wall has a first fuel vapor vent aperture associated with the first valve module and the first chamber and a liquid fuel transfer aperture associated with the first chamber and the second chamber, and the second wall has a second fuel vapor vent aperture associated with the second valve module and the second chamber.
5. The vent apparatus of claim 4, wherein the first wall has a first valve seat including the first fuel vapor vent aperture for the first valve module, and the second wall has a second valve seat including the second fuel vapor vent aperture for the second valve module,
6. The vent apparatus of claim 4, wherein each valve module has a float valve and a spring for the respective float valve to configure each valve module as a roll-over valve module, the float valve of the first valve module is movable in the first chamber to contact the first wall to block fuel from flowing through the first fuel vapor vent aperture, the spring of the second valve module contacts the first wall, and the float valve of the second valve module is movable in the second chamber to contact the second wall to block fuel from flowing through the second fuel vapor vent aperture.
7. The vent apparatus of claim 4, wherein the housing has a third chamber in communication with the fuel vapor vent outlet, the first fuel vapor vent aperture, and the second fuel vapor vent aperture.
8. The vent apparatus of claim 3, wherein the housing has an outer wall surrounding the first valve module and the second valve module, and the outer wall has a first port for communication between the fuel tank and the first chamber and a second port for communication between the fuel tank and the second chamber.
9. A vent apparatus adapted for use with a fuel tank to control venting of fuel vapor from the fuel tank, the vent apparatus comprising
a housing having a fuel vapor vent outlet to discharge fuel vapor from the fuel tank, a lower fuel vapor vent aperture, and an upper fuel vapor vent aperture,
a lower roll-over valve module associated with the lower fuel vapor vent aperture, and
an upper roll-over valve module associated with the upper fuel vapor vent aperture,
the lower roll-over valve module and the upper roll-over valve module being movable between a fill-limit orientation in which the lower roll-over valve module and the upper roll-over valve module cooperate to block communication between the fuel tank and the fuel vapor vent outlet through the lower fuel vapor vent aperture and the upper fuel vapor vent aperture when the level of liquid fuel in the fuel tank rises to a predetermined fill limit and a venting orientation in which the lower roll-over valve module blocks communication between the fuel tank and the fuel vapor vent outlet through the lower fuel vapor vent aperture and the upper roll-over valve module allows fuel vapor to flow from the fuel tank through the upper fuel vapor vent aperture to the fuel vapor vent outlet.
10. The vent apparatus of claim 9, wherein the housing has a first wall having the lower vent aperture and a liquid fuel transfer aperture for communication of liquid fuel between the lower roll-over valve module and the upper roll-over valve module.
11. The vent apparatus of claim 10, wherein the housing has a second wall above the first wall, the first wall has a lower valve seat including the lower fuel vapor vent aperture for the lower roll-over valve module, and the second wall has an upper valve seat including the upper fuel vapor vent aperture for the upper roll-over valve module.
12. The vent apparatus of claim 9, wherein the housing has a wall having a valve seat including the lower fuel vapor vent aperture for the lower roll-over valve module and a thrust surface for the upper roll-over valve module.
13. The vent apparatus of claim 12, wherein each of the lower rollover valve module and the upper roll-over valve module comprises a float valve and a spring upon which the float valve rests, the float valve of the lower roll-over valve module is movable to contact the valve seat of the wall, and the spring of the upper roll-over valve module contacts the thrust surface of the wall.
14. The vent apparatus of claim 9, wherein the housing has an upper chamber for the upper roll-over valve module, a lower chamber for the lower roll-over valve module, and a liquid fuel transfer aperture for communication of liquid fuel between the upper chamber and the lower chamber, the upper chamber is associated with the upper fuel vapor vent aperture, and the lower chamber is associated with the lower fuel vapor vent aperture.
15. A vent apparatus adapted for use with a fuel tank to control venting of fuel vapor from the fuel tank, the vent apparatus comprising
a housing having a fuel vapor vent outlet to discharge fuel vapor from the fuel tank, a first chamber, a second chamber, a third chamber, a first fuel vapor vent aperture for communication of fuel vapor between the first chamber and the second chamber, a second fuel vapor vent aperture for communication of fuel vapor between the second chamber and the third chamber, and a liquid fuel transfer aperture for communication of liquid fuel between the first chamber and the third chamber,
a first roll-over valve module positioned for movement in the first chamber between an opened position allowing fuel vapor to flow from the first chamber through the first fuel vapor vent aperture to the second chamber for discharge through the fuel vapor vent outlet and a closed position blocking fuel from flowing from the first chamber through the first fuel vapor vent aperture to the second chamber, and
a second roll-over valve module positioned for movement in the third chamber from an opened position allowing fuel vapor to flow from the third chamber through the second fuel vapor vent aperture to the second chamber for discharge through the fuel vapor vent outlet to a closed position blocking fuel from flowing from the third chamber through the second fuel vapor vent aperture to the second chamber in response to liquid fuel flowing from the first chamber through the liquid fuel transfer aperture to the third chamber.
16. The vent apparatus of claim 15, wherein the housing has a first wall positioned between the lower chamber and the first upper chamber and between the lower chamber and the second upper chamber, and the first wall has the first fuel vapor vent aperture and the liquid fuel transfer aperture.
17. The vent apparatus of claim 16, wherein the first wall has a valve seat including the first fuel vapor vent aperture for the first roll-over valve module.
18. The vent apparatus of claim 16, wherein the housing has a second wall positioned above the first wall, the second wall has a valve seat including the second fuel vapor vent aperture for the second roll-over valve module, and the second roll-over valve module engages the first wall.
19. The vent apparatus of claim 15, wherein the housing has an outer wall surrounding the first roll-over valve module and the second roll-over valve module, and the outer wall has a first port in communication with the first chamber and a second port in communication with the third chamber.
20. The vent apparatus of claim 15, wherein the liquid fuel transfer aperture is interposed between the first roll-over valve module and the second rollover valve module so that the first roll-over valve module and the second roll-over valve module are positioned in series.

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 silicon carbide semiconductor apparatus fabrication method comprising:
forming an ohmic metal film on a silicon carbide substrate by sputtering a target including a mixture or an alloy having therein nickel, and a metal(s) reducing magnetic permeability of nickel and producing a carbide, compositional ratios of the mixture or the alloy being adjusted to predetermined compositional ratios; and
executing heat treatment for the ohmic metal film to calcinate the ohmic metal film, wherein
the metal(s) reducing the magnetic permeability of the nickel and producing the carbide is titanium, and
a ratio of titanium in the target is 8 at % or greater and 50 at % or less.
2. The silicon carbide semiconductor apparatus fabrication method according to claim 1, wherein
a temperature at which the heat treatment is executed is 1,050 degrees C. or greater.
3. A silicon carbide semiconductor apparatus fabrication method comprising:
growing an epitaxial layer on a first principal surface of a silicon carbide substrate;
forming an ohmic metal film on the silicon carbide substrate by sputtering a target comprising a mixture or an alloy having therein nickel and a metal(s) reducing magnetic permeability of nickel and producing a carbide, compositional ratios of the mixture or alloy being adjusted to predetermined compositional ratios, onto a second principal surface of the silicon carbide substrate; and
executing a heat treatment for the ohmic metal film to calcinate the ohmic metal film.
4. The silicon carbide semiconductor apparatus fabrication method according claim 3, wherein
the metal(s) reducing the magnetic permeability of the nickel and producing the carbide isare one, or two or more metal(s) selected from among molybdenum, tungsten, tantalum, vanadium, zirconium, titanium, chromium, and aluminum.
5. The silicon carbide semiconductor apparatus fabrication method according to claim 3, wherein
the metal(s) reducing the magnetic permeability of the nickel and producing the carbide isare titanium, and
a ratio of titanium in the target is 8 at % or greater and 50 at % or less.
6. The silicon carbide semiconductor apparatus fabrication method according to claim 3, wherein
a temperature at which the heat treatment is executed is 1,050 degrees C. or greater.
7. A silicon carbide semiconductor apparatus fabrication method comprising:
forming an ohmic metal film on a silicon carbide substrate by sputtering a target including a mixture or an alloy having therein nickel, and a metal(s) reducing magnetic permeability of nickel and producing a carbide, compositional ratios of the mixture or the alloy being adjusted to predetermined compositional ratios; and
executing heat treatment for the ohmic metal film to calcinate the ohmic metal film, wherein
the metal(s) reducing the magnetic permeability of the nickel and producing the carbide isare one, or two or more metal(s) selected from among molybdenum, tungsten, tantalum, vanadium, zirconium, titanium, chromium, and aluminum, and
a ratio of said one, or two or more selected metal(s) in the target is 8 at % or greater and 50 at % or less.

1. A storage apparatus for attachment to ceiling joists of a structure comprising:
a mounting mechanism for attachment to the ceiling joists;
a hoist system attached to the mounting mechanism, the hoist system comprising at least one hoist pulley, a hoist wire disposed in each of the at least one hoist pulleys, and a hoist wire mount, the hoist wire mount receiving a first end of each of the hoist wires and including a plurality of mount pulleys that collectively form part of the hoist wire mount, the mount pulleys and the hoist pulleys being in substantially perpendicular relation to one another and the hoist wire mount also including a hoist wire guide;
a plurality of guide pulleys mounted on the host wire guide and associated with each of the mount pulleys for guiding the hoist wire into the designated mount pulley;
spacers of varying size are positioned between the hoist wire guide and the guide pulleys to set the distance between the hoist wire guide and the guide pulley;
a power source connected to the hoist system; and
a storage member, where the storage member is attached to a second end of each of the hoist wires.
2. The storage apparatus of claim 1, wherein the mounting mechanism is attached between the joists and the hoist system is located between the joists.
3. The storage apparatus of claim 1, wherein the mount pulleys are in concentric relationship with one another.
4. The storage apparatus of claim 1, wherein the mount pulleys are layered on top of one another.
5. The storage apparatus of claim 1, wherein the hoist system guides the hoist wires to a designated mount pulley by mounting the guide pulleys at varying distances in relation to the hoist wire guide.

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

What is claimed is:

1. A conductor assembly for a head stack assembly of a disk drive, the head stack assembly including a drive circuitry, an actuator arm, a first data transducer and a second data transducer, the actuator arm having a first surface lying in a first plane, a second surface lying in a second plane and an outer edge, the conductor assembly comprising:
a first trace segment that is positioned substantially along the actuator arm, the first trace segment including a middle span, the first trace segment carrying electrical signals between the first data transducer and the drive circuitry;
a second trace segment that is positioned substantially along the actuator arm, the second trace segment including a middle span, the second trace segment carrying electrical signals between the second data transducer and the drive circuitry; and
a segment guide that urges the first trace segment and the second trace segment together so that the middle span of the first trace segment and the middle span of the second trace segment are positioned substantially between the first plane and the second plane.
2. The conductor assembly of claim 1 wherein the segment guide includes an adhesive pad that extends between the first trace segment and the second trace segment.
3. The conductor assembly of claim 1 including a plurality of segment guides for urging the first trace segment and the second trace segment together so that the middle span of the first trace segment and the middle span of the second trace segment are positioned substantially between the first plane and the second plane.
4. The conductor assembly of claim 3 wherein at least one of the segment guides includes an adhesive tape pad.
5. The conductor assembly of claim 1 wherein the segment guide urges the first trace segment toward the second trace segment.
6. The conductor assembly of claim 5 wherein the segment guide is secured to the actuator arm.
7. The conductor assembly of claim 1 comprising a plurality of segment guides that urge the trace segments together.
8. The conductor assembly of claim 7 wherein at least one of the segment guides is secured to the actuator arm.
9. The conductor assembly of claim 1 including at least six segment guides that urge at least one of the trace segments toward the remaining trace segment.
10. The conductor assembly of claim 1 wherein the first trace segment and the second trace segment are positioned substantially along the outer edge of the actuator arm.
11. The conductor assembly of claim 1 wherein the first trace segment is substantially parallel to the second trace segment.
12. The conductor assembly of claim 1 wherein at least approximately 60 percent of the middle span of the first trace segment and at least approximately 60 percent of the middle span of the second trace segment are positioned substantially between the first plane and the second plane.
13. A head stack assembly including a first data transducer, a second data transducer, a drive circuitry, an actuator arm having a first surface and a second surface, and the conductor assembly of claim 1.
14. A disk drive including a drive housing and the head stack assembly of claim 13 positioned in the drive housing.
15. A conductor assembly for a head stack assembly of a disk drive, the head stack assembly including a drive circuitry, a load beam, a first data transducer, and an actuator arm having a first surface lying in a first plane, a second surface lying in a second plane and an outer edge, the conductor assembly comprising:
a first trace segment that is positioned substantially along the actuator arm, the first trace segment being adapted to carry electrical signals between the first data transducer and the drive circuitry; and
a first conductor platform positioned near the load beam that supports at least a portion of the first trace segment, the first conductor platform being adapted to position at least a portion of the first trace segment substantially between the first plane and the second plane.
16. The conductor assembly of claim 15 wherein the first conductor platform cantilevers from the actuator arm, and wherein at least a portion of the first conductor platform is positioned at an angle from the first plane toward the second plane.
17. The conductor assembly of claim 15 wherein the first trace segment is positioned substantially along the outer edge of the actuator arm.
18. The conductor assembly of claim 15 wherein the first conductor platform includes a first platform step that is positioned substantially between the first plane and the second plane, the first platform step maintaining the first conductor platform positioned substantially parallel to the first plane and the second plane.
19. The conductor assembly of claim 15 wherein the first trace segment is formed and shaped so that at least a portion of the first trace segment is positioned substantially between the first plane and the second plane.
20. The conductor assembly of claim 15 further comprising (i) a second trace segment that is positioned substantially along the actuator arm, the second trace segment being adapted to carry electrical signals between a second data transducer of the head stack assembly and the drive circuitry, and (ii) a second conductor platform for supporting at least a portion of the second trace segment, the second conductor platform being adapted to position at least a portion of the second trace segment substantially between the first plane and the second plane.
21. The conductor assembly of claim 20 wherein the first and second conductor platforms cantilever from the actuator arm, and wherein at least a portion of the first conductor platform is positioned at an angle from the first plane toward the second plane, and at least a portion of the second conductor platform is positioned at an angle from the second plane toward the first plane.
22. The conductor assembly of claim 20 wherein the first trace segment and the second trace segment are positioned substantially along the outer edge of the actuator arm.
23. The conductor assembly of claim 20 wherein the first trace segment and the second trace segment are formed and shaped so that each trace segment is positioned substantially between the first plane and the second plane.
24. The conductor assembly of claim 20 wherein the first conductor platform includes a first platform step, and wherein the second conductor platform includes a second platform step, the first and second platform steps being positioned substantially between the first plane and the second plane, the first and second platform steps positioning the first conductor platform parallel with the second conductor platform.
25. The conductor assembly of claim 24 wherein the first platform step is substantially parallel to the second platform step.
26. A head stack assembly including an actuator arm having a first surface and a second surface, a drive circuitry, a first data transducer and the conductor assembly of claim 15.
27. A disk drive including a drive housing and the head stack assembly of claim 26 positioned in the drive housing.
28. A conductor assembly for a head stack assembly of a disk drive, the head stack assembly including a first data transducer, a drive circuitry, and an actuator arm having a first surface lying in a first plane, a second surface lying in a second plane, and an outer edge, the conductor assembly comprising:
a first trace segment that is positioned substantially along the actuator arm, the first trace segment including a middle span, the first trace segment being adapted to carry electrical signals between the first data transducer and the drive circuitry, at least a portion of the first trace segment having been formed to be positioned substantially between the first plane and the second plane.
29. The conductor assembly of claim 28 wherein the first trace segment is positioned substantially along the outer edge of the actuator arm.
30. The conductor assembly of claim 28 wherein the portion of the first trace segment that has been formed is positioned at least in the middle span of the first trace segment.
31. The conductor assembly of claim 28 further comprising a second trace segment that is positioned substantially along the actuator arm, the second trace segment including a middle span, the second trace segment being adapted to carry electrical signals between a second data transducer of the head stack assembly and the drive circuitry, at least a portion of the second trace segment having been formed to be positioned substantially between the first plane and the second plane.
32. The conductor assembly of claim 31 wherein the portion of the second trace segment that has been formed is positioned at least in the middle span of the second trace segment.
33. The conductor assembly of claim 31 further comprising a segment guide for coupling the first trace segment and the second trace segment so that the middle span of the first trace segment and the middle span of the second trace segment are positioned substantially between the first plane and the second plane.
34. The conductor assembly of claim 33 wherein the segment guide includes an adhesive pad that extends between the first trace segment and the second trace segment.
35. The conductor assembly of claim 33 wherein the segment guide urges at least one of the trace segments toward the remaining trace segment.
36. The conductor assembly of claim 31 wherein the first trace segment and the second trace segment are substantially parallel to each other.
37. A head stack assembly including an actuator arm having a first surface lying in a first plane and a second surface lying in a second plane, a first data transducer, a drive circuitry and the conductor assembly of claim 28.
38. A disk drive including an actuator arm having a first surface lying in a first plane and a second surface lying in a second plane, a first data transducer, a drive circuitry, a storage disk and the conductor assembly of claim 28.
39. A method for reducing track misregistration in a disk drive that includes a rotating storage disk, the method comprising the steps of:
providing a head stack assembly including an actuator arm having a first surface lying in a first plane and a second surface lying in a second plane; and
positioning a first trace segment having a middle span along the actuator arm so that the middle span is positioned substantially between the first plane and the second plane.
40. The method of claim 39 wherein the step of positioning the first trace segment includes positioning the first trace segment substantially along the outer edge of the actuator arm.
41. The method of claim 39 wherein the step of positioning the first trace segment includes providing a first conductor platform for supporting at least a portion of the first trace segment between the first plane and the second plane.
42. The method of claim 41 wherein the step of providing a first conductor platform includes providing a first platform step coupled to the first conductor platform, the first platform step positioning the first conductor platform substantially parallel to the first plane.
43. The method of claim 41 wherein the step of positioning a first trace segment includes heating and reforming at least a portion of the first trace segment.
44. The method of claim 39 further comprising the step of positioning a second trace segment having a middle span along the actuator arm so that the middle span of the second trace segment and the middle span of the first trace segment are positioned substantially between the first plane and the second plane.
45. The method of claim 44 wherein the step of positioning the first trace segment includes positioning the first trace segment substantially along the outer edge of the actuator arm, and wherein the step of positioning the second trace segment includes positioning the second trace segment substantially along the outer edge of the actuator arm.
46. The method of claim 44 wherein the step of positioning the trace segments includes urging the first and second trace segments toward each other with a segment guide.
47. The method of claim 44 wherein the step of positioning the trace segments includes urging the first and second trace segments toward each other with a plurality of segment guides.
48. The method of claim 44 wherein the step of positioning the first trace segment includes providing a first conductor platform for supporting at least a portion of the first trace segment between the first plane and the second plane, and wherein the step of positioning the second trace segment includes providing a second conductor platform for supporting at least a portion of the second trace segment between the first plane and the second plane.
49. The method of claim 48 wherein the step of providing a first conductor platform includes providing a first platform step coupled to the first conductor platform, the first platform step positioning the first conductor platform substantially parallel to the first plane, and wherein the step of providing a second conductor platform includes providing a second platform step coupled to the second conductor platform, the second platform step positioning the second conductor platform substantially parallel to the first plane.
50. The method of claim 48 wherein the step of positioning a first trace segment includes heating and reforming at least a portion of the first trace segment, and wherein the step of positioning a second trace segment includes heating and reforming at least a portion of the second trace segment.