Author: claimsbot

1. A protective eyewear apparatus comprising:
a forehead member having a center portion, a first strap portion located on one side of the center portion, and a second strap portion located on another side of the center portion opposite to the first strap portion, wherein the center portion of the forehead member extends generally horizontally when viewing the protective eyewear apparatus from a front view worn on a user’s face;
an upper bar extending below the forehead member generally horizontally when viewing the protective eyewear apparatus from a front view worn on a user’s face, the upper bar having a first end disposed approximately below a portion of the forehead member between the first strap portion and the center portion and a second end disposed approximately below a portion of the forehead member between the second strap portion and the center portion;
a lower bar extending below the upper bar generally horizontally when viewing the protective eyewear apparatus from a front view worn on a user’s face, the lower bar having a first end disposed approximately below a portion of the forehead member between the first strap portion and the center portion and a second end disposed approximately below a portion of the forehead member between the second strap portion and the center portion, wherein the first end of the upper bar, the first end of the lower bar, and the portion of the forehead member between the first strap portion and the center portion are connected by a portion of a member extending generally vertically when viewing the protective eyewear apparatus from a front view worn on a user’s face, and wherein the second end of the upper bar, the second end of the lower bar, and the portion of the forehead member between the second strap portion and the center portion are connected by a portion of a member extending generally vertically when viewing the protective eyewear apparatus from a front view worn on a user’s face; and
a main support bar connected to the upper bar, the lower bar, and the center portion of the forehead member, the main support bar being generally vertical when viewing the protective eyewear apparatus from a front view worn on a user’s face.
2. The protective eyewear apparatus of claim 1, further comprising a compressible layer on the forehead member, the compressible layer defining a perspiration gutter.
3. The protective eyewear apparatus of claim 2, the perspiration gutter comprising a concave channel sloping down starting from an area proximate the main support bar when the protective eyewear apparatus is worn by a user.
4. The protective eyewear apparatus of claim 2, the compressible layer defining a perspiration gutter at an area of the compressible layer intended to contact a user’s temple.
5. The protective eyewear apparatus of claim 2, the compressible layer having a textured surface, the textured surface comprising raised portions adapted to contact a user’s skin and depressed portions adapted to hold perspiration.
6. The protective eyewear apparatus of claim 5, the textured surface comprising grooves.
7. The protective eyewear apparatus of claim 2, the compressible layer comprising one of foam and elastomer.
8. The protective eyewear apparatus of claim 1, the forehead member comprising a single continuous member.
9. The protective eyewear apparatus of claim 1, the main support bar, at the connection to the forehead member, being substantially perpendicular to the forehead member.
10. The protective eyewear apparatus of claim 1, wherein a distal end of the first strap portion is further connected to the portion of the member connecting the first end of the upper bar, the first end of the lower bar, and the portion of the forehead member between the first strap portion and the center portion so as to provide a first closed loop, and wherein a distal end of the second strap portion is further connected to the portion of the member connecting the second end of the upper bar, the second end of the lower bar, and the portion of the forehead member between the second strap portion and the center portion so as to provide a second closed loop.
11. The protective eyewear apparatus of claim 10, further comprising a strap disposed through the first closed loop and the second closed loop.
12. The protective eyewear apparatus of claim 1, wherein the forehead member, the upper bar, the lower bar, and the main support bar comprise approximately 3.8 mm thick 1008 solid carbon steel wire.
13. The protective eyewear apparatus of claim 1, wherein the upper bar, the lower bar, and the portion of the member connecting the first end of the upper bar, the first end of the lower bar, and the portion of the forehead member between the first strap portion and the center portion, define an opening that extends around a side of a head of a user wearing the protective eyewear apparatus to enable unobstructed peripheral vision.
14. The protective eyewear apparatus of claim 1, further comprising eyewear securing means attached to the first strap portion and the second strap portion of the forehead member.
15. The protective eyewear apparatus of claim 14, the eyewear securing means comprising an elastic strap.
16. The protective eyewear apparatus of claim 1, the forehead member, the upper bar, the lower bar, and the main support bar comprising one of a metal, a metal alloy, a composite material, and a synthetic material.
17. The protective eyewear apparatus of claim 1, further comprising:
a first support bar connecting the forehead member and the upper bar; and
a second support bar connecting the forehead member and the upper bar, the first support bar and the second support bar disposed on opposite sides of the main support bar.
18. The protective eyewear apparatus of claim 1, wherein the portion of the member connecting the first end of the upper bar, the first end of the lower bar, and the portion of the forehead member between the first strap portion and the center portion, and the portion of the member connecting the second end of the upper bar, the second end of the lower bar, and the portion of the forehead member between the second strap portion and the center portion, comprise portions of a cheek member, wherein the cheek member has a first end connected to the forehead member approximately between the first strap portion and the center portion, and a second end connected to the forehead member approximately between the second strap portion and the center portion, the cheek member spaced apart from the forehead member to define a base.
19. The protective eyewear apparatus of claim 18, further comprising a compressible layer on the cheek member, the compressible layer defining a perspiration gutter that slopes down in a direction away from the main support bar.
20. The protective eyewear apparatus of claim 1, the upper bar comprising a center concave portion, a left convex portion, and a right convex portion, when viewing the protective eyewear apparatus from a front view worn on the user’s face,
the lower bar comprising a center convex portion, a left concave portion, and a right concave portion, when viewing the protective eyewear apparatus from a front view worn on the user’s face,
the center concave portion of the upper bar vertically opposite to the center convex portion of the lower bar,
the left convex portion of the upper bar vertically opposite to the left concave portion of the lower bar, and
the right convex portion of the upper bar vertically opposite to the right concave portion of the lower bar.
21. The protective eyewear apparatus of claim 20, the upper bar and the lower bar separated by a vertical distance that decreases from a maximum measured between the left convex portion of the upper bar and the left concave portion of the lower bar to a minimum measured between the concave portion of the upper bar and the convex portion of the lower bar, to enable a wide field of vision.
22. A protective eyewear apparatus comprising:
a forehead member comprising a center concave portion, a left convex portion, and a right convex portion, when viewing the protective eyewear apparatus from a front view worn on a user’s face;
a first member connected to the forehead member on a side of the left convex portion of the forehead member opposite to the center concave portion of the forehead member and extending generally down from the forehead member when viewing the protective eyewear apparatus from a front view worn on a user’s face;
a second member connected to the forehead member on a side of the right convex portion of the forehead member opposite to the center concave portion of the forehead member and extending generally down from the forehead member when viewing the protective eyewear apparatus from a front view worn on a user’s face;
an upper bar extending below the forehead member and generally horizontally when viewing the protective eyewear apparatus from a front view worn on the user’s face, the upper bar having a first end connected to the first member and a second end connected to the second member;
a lower bar extending below the upper bar and generally horizontally when viewing the protective eyewear apparatus from a front view worn on the user’s face, the lower bar having a first end connected to the first member and a second end connected to the second member; and
a main support bar connected to the upper bar and the lower bar, the main support bar being generally vertical when viewing the protective eyewear apparatus from a front view worn on the user’s face.
23. The protective eyewear apparatus of claim 22, further comprising a compressible layer disposed on the forehead member, the compressible layer defining a gutter sloping down from the center of the forehead member when the protective eyewear apparatus is worn by the user.
24. The protective eyewear apparatus of claim 22, further comprising a compressible layer disposed on the forehead member, the compressible layer having a textured surface, the textured surface comprising raised portions adapted to contact the user’s skin and depressed portions adapted to hold perspiration.
25. The protective eyewear apparatus of claim 24, the textured surface comprising grooves.
26. The protective eyewear apparatus of claim 22, the forehead member, the first member, the second member, the upper bar, the lower bar, and the main support bar comprising composite resin.
27. The protective eyewear apparatus of claim 22, the forehead member further comprising
a first strap portion extending beyond a point at which the first member connects to the forehead member,
a second strap portion extending beyond a second point at which the second member connects to the forehead member.
28. The protective eyewear apparatus of claim 27, the first strap portion of the forehead member curved beyond the point at which the first member connects to the forehead member and attached to the first member to form a first closed loop, and
the second strap portion of the forehead member curved beyond the point at which the second member connects to the forehead member and attached to the second member to form a second closed loop.
29. The protective eyewear apparatus of claim 28, further comprising a strap attached through the first closed loop and the second closed loop.
30. The protective eyewear apparatus of claim 22, further comprising a strap attached to the protective eyewear apparatus.
31. The protective eyewear apparatus of claim 22, further comprising:
a first support bar connecting the forehead member and the upper bar; and
a second support bar connecting the forehead member and the upper bar, the first support bar and the second support bar disposed on opposite sides of the main support bar.
32. The protective eyewear apparatus of claim 22, wherein the first member and the second member comprise portions of a cheek member,
wherein the cheek member comprises a center convex portion, a left concave portion, and a right concave portion, when viewing the protective eyewear apparatus from a front view worn on the user’s face,
wherein the first member is a portion of the left concave portion and the second member is a portion of the right concave portion,
wherein the center concave portion of the forehead member is vertically opposite to the center convex portion of the cheek member,
wherein the left convex portion of the forehead member is vertically opposite to the left concave portion of the cheek member,
wherein the right convex portion of the forehead member is vertically opposite to the right concave portion of the cheek member, and
wherein the forehead member and the cheek member are separated by a vertical distance that decreases from a maximum measured between the left convex portion of the forehead member and the left concave portion of the cheek member to a minimum measured between the concave portion of the forehead member and the convex portion of the cheek member, to enable a wide field of vision.
33. The protective eyewear apparatus of claim 32, the main support bar having a first end connected to the concave portion of the forehead member and a second end connected to the convex portion of the cheek member.
34. The protective eyewear apparatus of claim 32, the cheek member having a projecting portion that spans a user’s nose such that the protective eyewear apparatus does not contact the user’s nose when the protective eyewear apparatus is worn by the user.
35. The protective eyewear apparatus of claim 22, the forehead member, the first member, the second member, the upper bar, the lower bar, and the main support bar comprising one of a metal, a metal alloy, a composite material, and a synthetic material.

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. An optical junction connector device comprising:
a first optical junction connector including a first connector housing, and a ferrule formed on and projecting from the first connector housing, the ferrule having a plurality of fiber insertion holes for respectively receiving end portions of first optical fibers; and
a second optical junction connector including a second connector housing for holding end portions of a plurality of second optical fibers;
wherein
the second connector housing having a ferrule guide hole for receiving the ferrule to guide the end portions of the first optical fibers toward the end portions of the second optical fibers respectively;
the ferrule is formed into a non-circular transverse cross-sectional shape; and
the ferrule guide hole is formed into a non-circular transverse cross-sectional shape corresponding to the non-circular transverse cross-sectional shape of the ferrule.
2. The optical junction connector device according to claim 1,
wherein
the ferrule has an oval transverse cross-sectional shape; and
the ferrule guide hole has an oval transverse cross-sectional shape corresponding to the oval transverse cross-sectional shape of the ferrule.
3. The optical junction connector device according to claim 1,
wherein
an elongate guide projection is formed on one of an outer peripheral surface of the ferrule and an inner peripheral surface of the ferrule guide hole, and extends in a direction of inserting connection of the ferrule and the ferrule guide hole to each other, whereas a guide groove for receiving the elongate guide projection so as to guide the same in the direction of inserting connection is formed in the other.
4. The optical junction connector device according to claim 1,
wherein the first connector housing includes a protecting hood portion which projects forwardly beyond the ferrule in surrounding relation thereto.
5. The optical junction connector device according to claim 4,
wherein
the second connector housing has a ferrule receiving portion projecting therefrom;
the ferrule guide hole is formed in the ferrule receiving portion; and
the protecting hood portion is so shaped as to be fitted on the ferrule receiving portion.
6. An optical junction connector comprising:
a connector housing; and
a ferrule formed on and projecting from the connector housing;
wherein
the ferrule has a plurality of fiber holding holes for respectively receiving end portions of optical fibers; and
the ferrule is formed into a non-circular transverse cross-sectional shape.
7. An optical junction connector comprising
a connector housing for holding end portions of a plurality of optical fibers,
wherein
the connector housing having a ferrule guide hole; and
the ferrule guide hole is formed into a non-circular transverse cross-sectional shape.

1. A film guiding assembly for guiding a plastic film during travel along a desired path, said assembly including:
at least two non-rotating turning bars over which the film passes;
an actuator for pivoting the turning bars to laterally shift the film; and
a sensor for sensing the lateral position of the film downstream of the turning bars and operable to cause the actuator to pivot the turning bars when necessary to maintain the film leaving the guiding assembly in the desired path.
2. A guiding assembly according to claim 1 wherein the actuator is also operable to move the turning bars to a loading position in which the film can be passed therebetween in a downward direction.
3. A guiding assembly according to claim 1 including further actuators operable to permit the turning bars to rotate during a start-up operation.

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. An AC plasma ejection gun, comprising:
a power supply device, having a live wire and a null wire, to supply power to the AC plasma ejection gun to generate arc uninterruptedly, the power supply device comprising:
an AC main power source to supply power to the AC plasma ejection gun to produce the arc;
an AC arc starting power source, an output of the AC arc starting power source on which a voltage-raising frequency process has been performed to be uninterruptedly loaded on the AC plasma ejection gun, and, when the AC main power source is passing a zero point, the AC arc starting power source on which the voltage-raising frequency process has been performed to continue to supply power to the AC plasma ejection gun to produce the arc;
a first voltage-raising frequency circuit comprising:
a first transformer to raise an output voltage of the AC arc starting power source to a first voltage;
a first oscillating circuit comprising a secondary side of the first transformer and a first capacitor connected in parallel to raise an output frequency of the AC arc starting power source to a first frequency; and
a tungsten electrode connected in parallel with the secondary side of the first transformer to release electric energy of the first oscillating circuit and to raise the output frequency of the AC arc starting power source; and

a second voltage-raising frequency circuit comprising:
a second transformer to raise the output voltage of the AC arc starting power source from the first voltage to a second voltage; and
a second oscillating circuit comprising a secondary side of the second transformer and a second capacitor connected in parallel to raise the output frequency of the AC arc starting power source from the first frequency to a second frequency;
an electric front electrode defining a front chamber, a nozzle connected with the front chamber at an outlet of the front electrode, an air inlet pipe connected with the front chamber at an inlet of the front electrode, the front electrode connected with the null wire; and
an electric rear electrode, connected with the inlet of the front electrode by an insulated ring, a gap between the electric rear electrode and the front electrode, the rear electrode being connected with the live wire, a spinning air inlet ring at an outside of the gap between the electric front electrode and the rear electrode, compressed air from the air inlet pipe to pass the spinning air inlet ring and to enter into the front chamber; wherein,
an arc between the front electrode and the rear electrode is to discharge, ionizing the compressed air into plasma in the gap between the front electrode and the rear electrode, and the plasma is to be ejected out of the nozzle from the front chamber.
2. The AC plasma ejection gun according to claim 1, wherein the spinning air inlet ring is circular, a plurality of air inlet jacks are located on a circumferential wall of the spinning air inlet ring along a tangent direction, and each of the jacks is connected with a corresponding air inlet pipe.
3. The AC plasma ejection gun according to claim 2, wherein
the rear electrode has a rear chamber, a rear end of the rear chamber is closed and a front end of the rear chamber is open, and
the rear end of the rear electrode is connected with a terminal, and a through hole connected with compressed air is at the terminal in an axial direction.
4. The AC plasma ejection gun according to claim 2, wherein the ejection gun further comprises a front sleeve around an outside of the front electrode;
a front water cooling system is outside of the front electrode, the front water cooling system comprises a water inlet pipe, a water outlet pipe and a fluid channel between the front electrode and the front sleeve, and the fluid channel is connected with the water inlet pipe and the water outlet pipe.
5. The AC plasma ejection gun according to claim 4, wherein the front water cooling system comprises a half-sleeve in the front sleeve, the half-sleeve covers the outside of the front electrode, there is a gap between the half-sleeve and the front electrode, a plurality of projections are around an outside of the half sleeve in a circumferential direction, the water inlet pipe and the outlet pipe are interlaced in an axial direction, and a first one of the projections is at a position between the water inlet pipe and the water outlet pipe in the axial direction.
6. The AC plasma ejection gun according to claim 5, wherein the ejection gun further comprises a rear sleeve around an outside of the rear electrode, a rear water cooling system is set at an outside of the rear electrode, the rear water cooling system comprises a second water inlet pipe, a second water outlet pipe and a second fluid channel between the rear electrode and the rear sleeve, and the second fluid channel is connected with the second water inlet pipe and the second water outlet pipe.
7. The AC plasma ejection gun according to claim 6, wherein the rear sleeve comprises a first rear sleeve and a second rear sleeve which are hermetically connected, the second water inlet pipe and second water outlet pipe are at the first rear sleeve, a first end of the second rear sleeve is hermetically connected with the first rear sleeve, and a second end of the second rear sleeve is hermetically connected with the projection of the rear electrode.
8. The AC plasma ejection gun according to claim 1, wherein the AC main power source and the second capacitor are connected in parallel, to provide the AC plasma ejection gun with main AC voltage to produce the arc.
9. The AC plasma ejection gun according to claim 1, wherein the AC arc starting power source is in a Y connection and the AC main power source is in a Y connection; or
the AC arc starting power source is in a triangle connection and the AC main power source is in a triangle connection.
10. The AC plasma ejection gun according to claim 9, wherein the output voltage of the AC arc starting power source in the Y connection is 220V, the frequency of the AC arc starting power source is 50 Hz, an output voltage of the main AC power source in the Y connection is 220V, a frequency of the main AC power source is 50 Hz; and
the output voltage of the AC arc starting power source in the triangle connection is 380V, the frequency of the AC arc starting power source is 50 Hz, the output voltage of the main AC power source in the triangle connection is 380V, the frequency of the AC arc starting power source is 50 Hz.
11. The AC plasma ejection gun according to claim 1, wherein an output power of the AC arc starting power source is less than an output power of the AC main power source, and flowing air is between the discharging electrodes of the AC plasma ejection gun.
12. A pulverized coal burner, comprising a multi-stage ignition combustion chamber, a plurality of jacks are in a side wall of the multi-stage ignition combustion chamber along an axial direction, an AC plasma ejection gun according to claim 1 is inside of each jack to ignite pulverized coal passed through the multi-stage ignition combustion chamber.
13. The pulverized coal burner according to claim 12, wherein the burner further comprises a mixing combustion chamber connected with a rear end of the multi-stage ignition combustion chamber; and
a separation pipe at a center of the mixing combustion chamber in the axial direction, a diameter of the rear end of the separation pipe is larger than a diameter of the guiding pipe for concentrated coal powder, the separation pipe being connected with an outside wall of the mixing combustion chamber by at least one curved rib board.
14. The pulverized coal burner according to claim 13, wherein the burner further comprises a combustion chamber with extra oxygen supplement, the combustion chamber being connected with an end of the mixing combustion chamber, an inlet of the combustion chamber is at an outside of the end of the mixing combustion chamber by a connecting board, and a double layer slot to renew air is between the combustion chamber and the mixing combustion chamber.
15. A pulverized coal burner having a speed-lowering ignition combustion chamber, at least one jack in a side wall of the speed-lowering ignition combustion chamber along an axial direction, and an AC plasma ejection gun according to claim 1 inside of each jack, to ignite pulverized coal in the speed-lowering ignition combustion chamber.
16. The pulverized coal burner according to claim 15, wherein;
the speed-lowering ignition combustion chamber comprises a pipe wall and speed-lowering pipe, which is in a front of the speed-lowering ignition combustion chamber,
a cross section of the speed-lowering pipe from a pulverized coal inlet to an outlet is gradually enlarging,
a nozzle of the AC plasma ejection gun is provided inside of the speed-lowering pipe and at a position where the cross section is enlarged,
a front end of the pipe wall sticks out a front end of the speed-lowering pipe, and
a gradually enlarging part is provided at the front end of the pipe wall, a cross section of the gradually enlarging part gradually enlarging along a direction from a pulverized coal inlet end to a pulverized coal outlet end.
17. The pulverized coal burner according to claim 16, wherein the speed-lowering pipe is at a central position of the pipe wall in an axial direction, and the speed-lowering pipe is connected with the pipe wall by at least one curved tie strap; the tie strap being configured to be curved.
18. The pulverized coal burner according to claim 17, further comprising a disturbing ring at an inside wall of a rear end of the speed-lowering pipe, and a separation part at the inside wall of the rear end of the pipe wall of the speed-lowering ignition combustion chamber.
19. The pulverized coal burner according to claim 15, wherein the burner further comprises a mixing combustion chamber connected with a rear end of the speed-lowering ignition combustion chamber,
a separation pipe is at a center of the mixing combustion chamber along an axial direction, a first diameter of a rear end of the separation pipe is larger than a second diameter of the speed-lowering pipe, and
the separation pipe is connected with an outside wall of the mixing combustion chamber by at least one curved rib.
20. The pulverized coal burner according to claim 19, wherein the burner further comprises a combustion chamber with extra oxygen supplement, the combustion chamber being connected with a rear end of the mixing combustion chamber,
an inlet of the combustion chamber is connected with an outside of the rear end of the mixing combustion chamber by a connecting board, and
a double layer slot to renew air is between the inlet of the combustion chamber and the mixing combustion chamber.