Author: claimsbot

1. An irrigation system comprising:
a plurality of circular pipes;
a plurality of plumbing fittings each having three legs extending in a \u201cY\u201d shape, the \u201cY\u201d shape having an angle of 120 degrees between each of its three legs, the pipes being connected to the legs of the plumbing fittings to form a network in which each pipe, in combination with legs of connected plumbing fittings, forms one side in a hexagonal shaped pipe network formation, all of the sides of each hexagonal shaped pipe network formation being of substantially equal length, the central axes in a flow direction of each of the pipes of the hexagonal shaped pipe network formation located in a common plane with one another, and
watering outlets fitted to alternate plumbing fittings.
2. The irrigation system as claimed in claim 1, wherein the watering outlets are sprinkler heads.
3. The irrigation system as claimed in claim 2, wherein the sprinkler heads are directly connected to the plumbing fittings.
4. The irrigation system as claimed in claim 2, wherein the sprinkler heads are connected to the plumbing fittings via risers or pop-up fittings.
5. An irrigation system comprising:
a plurality of circular pipes;
a plurality of plumbing fittings each having three legs extending in a \u201cY\u201d shape, the \u201cY\u201d shape having an angle of 120 degrees between each of its three legs, the pipes being connected to the legs of the plumbing fittings to form a network in which each pipe, in combination with legs of plumbing fittings connected at either end of the respective pipe, forms one side in a hexagonal shaped pipe network formation, all of the sides of each hexagonal shaped pipe network formation being of substantially equal length, the central axes in a flow direction of each of the pipes of the hexagonal shaped pipe network formation located in a common plane with one another, and
watering outlets fitted to each plumbing fitting.
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 check valve for engaging a lid having through-hole and valve coupling part and controlling air flow through the through-hole, the check valve comprising:
a valve body part which is made of an elastic material, is provided with a concave part for providing on the bottom surface thereof an empty space higher than the edge thereof, and has a through-hole vertically formed therein;
a vacuum indicating part which is connected integrally to the valve body part along the inner wall surface of the through-hole at a position spaced downwardly from the top of the through-hole, is formed to be thinner than the thickness of the valve body part and protrude upwardly, and sinks toward a lid when negative pressure is generated in the space between the lid and the valve body part; and
a fixing part which is coupled to a valve coupling part so as to fix the valve body part to the valve coupling part.
2. The check valve of claim 1, wherein the vacuum indicating part is connected integrally to the valve body part along the inner wall surface of the through-hole at a position spaced upwardly from the bottom of the through-hole.
3. The check valve of claim 1, wherein a length of a cross-sectional surface of the vacuum indicating part is not less than a surface length of a bottom of the vacuum indicating part facing the cross-sectional surface of the vacuum indicating part, and wherein the surface length is a sum of a surface length of the lid facing the cross-sectional surface of the vacuum indicating part, a length from an end of the cross-sectional surface of the vacuum indicating part to a surface of the lid below the end, and a length from the other end of the cross-sectional surface of the vacuum indicating part to the surface of the lid below the other end.
4. The check valve of claim 1, wherein an edge protrusion is provided, which is formed continuously along an edge top surface of the valve body part so as to have a ring shape and protrudes upwardly.
5. The check valve of claim 1, wherein a handle is installed, which is provided protruding upwardly at an edge of the valve body part and configured for being grabbed by a hand of user and lifted by an edge of the valve body part so as to relieve vacuum state.
6. The check valve of claim 5, wherein the handle has a shape of rectangular cylinder, a protruding bump protruding outwardly on a top end of the handle, and an outer side surface of the handle is formed so as to be sloped inwardly as going upwardly from an edge of the valve body part.
7. The check valve of claim 1, wherein in a state of being installed in the lid through the fixing part the edge of the valve body part is pressed upwardly by a surface of the lid.
8. A vacuum container lid for opening or closing an opening of the container main body provided in an internal space for storing contents, the vacuum container lid comprising:
a lid body having a packing provided on a bottom surface so as to seal the opening of the container main body and formed with a through-hole and a valve coupling part; and
a check valve coupled to the valve coupling part and for controlling air flow through the through-hole,
wherein the check valve comprises:
a valve body part which is made of an elastic material, is provided with a concave part for providing on the bottom surface thereof an empty space higher than the edge thereof, and has a through-hole vertically formed therein;
a vacuum indicating part which is connected integrally to the valve body part along the inner wall surface of the through-hole at a position spaced downwardly from the top of the through-hole, is formed to be thinner than the thickness of the valve body part and protrude upwardly, and sinks toward a lid when negative pressure is generated in the space between the lid and the valve body part; and
a fixing part which is coupled to a valve coupling part so as to fix the valve body part to the valve coupling part.
9. The vacuum container lid of claim 8, wherein in the check valve, in a state of being installed in the lid through the fixing part, the edge of the valve body part is pressed upwardly by a surface of the lid even though negative pressure is not formed in the container main body.
10. The vacuum container lid of claim 8, wherein in the check valve, the edge of the valve body part is pressed upon the top surface of the lid by a catching bump formed a bottom side part of the fixing part and caught at a bottom surface of the lid through the valve coupling part.
11. The vacuum container lid of claim 9, wherein the edge of the valve body part is pressed upon the top surface of the lid, so that when pressing the lid installed in the container main body the air in the internal space of the container main body escapes to outside and generates an air-venting effect sound.
12. The vacuum container lid of claim 8, wherein the vacuum indicating part is connected integrally to the valve body part along the inner wall surface of the through-hole at a position spaced upwardly from the bottom of the through-hole.
13. The vacuum container lid of claim 8, wherein a length of a cross-sectional surface of the vacuum indicating part is not less than a surface length of a bottom of the vacuum indicating part facing the cross-sectional surface of the vacuum indicating part, and wherein the surface length is a sum of a surface length of the lid facing the cross-sectional surface of the vacuum indicating part, a length from an end of the cross-sectional surface of the vacuum indicating part to a surface of the lid below the end, and a length from the other end of the cross-sectional surface of the vacuum indicating part to the surface of the lid below the other end.
14. The vacuum container lid of claim 8, wherein an edge protrusion is provided, which is formed continuously along an edge top surface of the valve body part so as to have a ring shape and protrudes upwardly.
15. The vacuum container lid of claim 8, wherein a handle is installed, which is provided protruding upwardly at an edge of the valve body part and configured for being grabbed by a hand of user and lifted by an edge of the valve body part so as to relieve vacuum state.
16. The vacuum container lid of claim 8, wherein the handle has a shape of rectangular cylinder, a protruding bump protruding outwardly on a top end of the handle, and an outer side surface of the handle is formed so as to be sloped inwardly as going upwardly from an edge of the valve body part.
17. A check valve for engaging a lid having through-hole and valve coupling part and controlling air flow through the through-hole, the check valve comprising:
a valve body part which is made of an elastic material, is provided with a concave part for providing on the bottom surface thereof an empty space higher than the edge thereof, and has a through-hole vertically formed therein;
a vacuum indicating part which is connected integrally to the valve body part along the inner wall surface of the through-hole at a position spaced downwardly from the top of the through-hole, is formed to be thinner than the thickness of the valve body part and protrude upwardly, and sinks toward a lid when negative pressure is generated in the space between the lid and the valve body part; and
a fixing part which is coupled to a valve coupling part so as to fix the valve body part to the valve coupling part,
wherein the vacuum indicating part is connected integrally to the valve body part along the inner wall surface of the through-hole at a position spaced upwardly from the bottom of the through-hole,
and wherein in a state of being installed in the lid through the fixing part the edge of the valve body part is pressed upwardly by a surface of the lid.
18. The check valve of claim 17, wherein a length of a cross-sectional surface of the vacuum indicating part is not less than a surface length of a bottom of the vacuum indicating part facing the cross-sectional surface of the vacuum indicating part, and wherein the surface length is a sum of a surface length of the lid facing the cross-sectional surface of the vacuum indicating part, a length from an end of the cross-sectional surface of the vacuum indicating part to a surface of the lid below the end, and a length from the other end of the cross-sectional surface of the vacuum indicating part to the surface of the lid below the other end.
19. The check valve of claim 17, wherein an edge protrusion is provided, which is formed continuously along an edge top surface of the valve body part so as to have a ring shape and protrudes upwardly.
20. The check valve of claim 17, wherein a handle is installed, which is provided protruding upwardly at an edge of the valve body part and configured for being grabbed by a hand of user and lifted by an edge of the valve body part so as to relieve vacuum state.

1. A thrust reverser control system, comprising:
a power drive unit operable to supply a drive force;
at least two drive mechanisms each coupled to receive the drive force from the power drive unit; and
at least two actuator assemblies, each actuator assembly coupled to at least one of the drive mechanisms and including:
an actuator coupled to receive the drive force from one of the drive mechanisms, the actuator having at least one end that rotates in response to the drive force and configured to move, upon receipt of the drive force, between a stowed position and a deployed position, the actuator
a torque limiter assembly mounted to the end of the actuator and configured to limit torque in the actuator assembly upon a torque magnitude being reached in at least the actuator while allowing continued rotation of the at least one end of the actuator.
2. The system of claim 1, wherein the actuator comprises:
a rotationally mounted actuator shaft configured to rotate, upon receipt of the drive force, in a stow direction and a deploy direction; and
an extension tube mounted on the actuator shaft and coupled to the torque limiter assembly, the extension tube configured to translate between the stowed position and the deployed position in response to actuator shaft rotation in the stow direction and the deploy direction, respectively.
3. The system of claim 2, further comprising:
a rod end assembly selectively moveably coupled to the torque limiter assembly, the rod end assembly configured to selectively rotate relative to the extension tube, and adapted to couple to a thrust reverser moveable component.
4. The system of claim 3, wherein the torque limiter assembly at least partially decouples the extension tube in the rod end assembly upon the torque magnitude being reached in the extension tube, to thereby limit torque applied to the actuator assembly.
5. The system of claim 2, wherein the extension tube is further configured to rotate in substantial synchronism with the actuator shaft when the torque limiter assembly limits the applied torque.
6. (canceled).
7. The system of claim 2, wherein:
the actuator shaft comprises a ball screw; and
the extension tube comprises a ball nut mounted on the ball screw, the ball nut configured to translate between the stowed position and the deployed position in response to ball screw rotation in the stow direction and the deploy direction, respectively.
8. The system of claim 3, wherein the torque limiter assembly comprises:
at least two roller pins, each roller pin having an outer surface and moveably mounted in a groove formed in the rod end assembly; and
at least two substantially resilient cantilever arms each having a fixed end and a free end, each cantilever arm fixed end fixedly coupled to the actuator and each cantilever arm free end in contact with the outer surface of one of the roller pins, to thereby apply a radial load thereon.
9. The system of claim 8, wherein:
the grooves formed in the rod end assembly each have a substantially equivalent groove depth; and
the torque magnitude at which the torque limiter assembly limits torque applied to the actuator assembly is based, at least in pan, on groove depth.
10. The system of claim 8, wherein the torque magnitude at which the torque limiter assembly limits torque applied to the actuator assembly is based, at least in part, on the radial load applied by each cantilever arm on each roller pin.
11. The system of claim 8, wherein each of the roller pins rolls out of one groove and into an adjacent groove when the torque magnitude is reached, to thereby at least partially decouple the actuator from the rod end assembly.
12. The actuator assembly of claim 3, further comprising:
a thrust bearing assembly coupled between the actuator and the torque limiter assembly.
13. The actuator of claim 12, wherein the thrust bearing assembly comprises:
a bearing groove formed in at least one of the actuator and the rod end assembly; and
a plurality of ball bearings disposed within the bearing groove and in moveable contact with the actuator and the rod end assembly,
wherein the bearing groove and ball bearings are configured to transmit an axial force between the actuator and the rod end assembly and, when the torque magnitude is reached, whereby relative rotation between the actuator and the rod end assembly is allowed.
14. A thrust reverser actuator assembly, comprising:
an actuator adapted to receive a drive force, the actuator having at least one end that rotates in response to the drive force and configured, in response to receipt of the drive force, to move between a stowed position and a deployed position; and
a torque limiter assembly mounted to the end of the actuator and configured to limit torque applied to the actuator assembly upon a torque magnitude being reached in at least the actuator while allowing continued rotation of the at least one end of the actuator.
15. The actuator assembly of claim 14, wherein the actuator comprises:
a rotationally mounted actuator shaft configured to rotate, upon receipt of the drive force, in a stow direction and a deploy direction; and
an extension tube mounted on the actuator shaft and coupled to the torque limiter assembly, the extension tube configured to translate between the stowed position and the deployed position in response to actuator shaft rotation in the stow direction and the deploy direction, respectively.
16. The actuator assembly of claim 15, further comprising:
a rod end assembly coupled to the torque limiter assembly, the rod end assembly configured to selectively rotate relative to the extension tube and the torque limiter assembly, and adapted to couple to a thrust reverser moveable component.
17. The actuator assembly of claim 16, wherein the torque limiter assembly at least partially decouples the extension tube from the rod end assembly upon the torque magnitude being reached in the extension tube, to thereby limit torque applied to the actuator assembly.
18. The actuator assembly of claim 15, wherein the extension tube is further configured to rotate in substantial synchronism with the actuator shaft when the torque limiter assembly limits the applied torque.
19. The actuator assembly of claim 15, wherein:
the actuator shaft comprises a ball screw; and
the extension tube comprises a ball nut mounted on the ball screw, the ball nut configured to translate between the stowed position and the deployed position in response to ball screw rotation in the stow direction and the deploy direction, respectively.
20. The actuator assembly of claim 16, wherein the torque limiter assembly comprises:
at least two roller pins, each roller pin having an outer surface and moveably mounted in a groove formed in the rod end assembly; and
at least two substantially resilient cantilever arms each having a fixed end and a free end, each cantilever arm fixed end fixedly coupled to the actuator and each cantilever arm free end in contact with the outer surface of one of the roller pins, to thereby apply a radial load thereon.
21. The actuator assembly of claim 20, wherein:
the grooves formed in the rod end assembly each have a substantially equivalent groove depth; and
the torque magnitude at which the torque limiter assembly limits torque applied to the actuator assembly is based, at least in part, on groove depth.
22. The actuator assembly of claim 20, wherein the torque magnitude at which the torque limiter assembly limits torque applied to the actuator assembly is based, at least in part, on the radial load applied by each cantilever arm on each roller pin.
23. The actuator assembly of claim 20, wherein each of the roller pins rolls out of one groove and into an adjacent groove when the torque magnitude is reached, to thereby at least partially decouple the actuator from the rod end assembly.
24. The actuator assembly of claim 16, further comprising:
a thrust bearing assembly coupled between the actuator and the torque limiter assembly assembly.
25. The actuator assembly of claim 15, wherein the thrust bearing assembly comprises:
a bearing groove formed in at least one of the actuator and the rod end assembly; and
a plurality of ball bearings disposed within the bearing groove and in moveable contact with the actuator and the rod end assembly,
wherein the bearing groove and ball bearings are configured to transmit an axial force between the actuator and the rod end assembly and, when the torque magnitude is reached, whereby relative rotation between the actuator and the rod end assembly is allowed.
26. A torque limiter assembly configured to limit torque transmission between an aircraft thrust reverser actuator and a rod end assembly, the torque limiter assembly comprising:
at least two roller pins, each roller pin having an outer surface and moveably mounted in a groove formed in the rod end assembly; and
at least two substantially resilient cantilever arms each having a fixed end and a fee end, each cantilever arm fixed end configured to fixedly couple to the actuator and each cantilever arm free end in contact with the outer surface of one of the roller pins, to thereby apply a predetermined radial load thereon.
27. The torque limiter assembly of claim 26,
the grooves formed in the rod end assembly each have a substantially equivalent groove depth; and
the torque magnitude at which the torque limiter assembly limits torque transmission is based, at least in part, on groove depth.
28. The torque limiter assembly of claim 26, wherein the torque magnitude at which the torque limiter assembly limits torque transmission is based, at least in part, on the radial load applied by each cantilever arm on each roller pin
29. limiter assembly of claim 26, wherein each of the roller pins is configured to roll out of one groove and into an adjacent groove when the torque magnitude is reached, to thereby at least partially decouple the actuator from the rod end assembly.
30. A rod end assembly for coupling to a thrust reverser moveable component, comprising:
a main body having an outer peripheral surface;
two or more pin grooves formed in, and evenly spaced around, the main body outer peripheral surface; and
a bearing groove formed in, and circumscribing, the main body outer peripheral surface, the bearing groove adapted to receive a plurality of ball bearings therein.
31. In a thrust reverser actuator assembly having at least an actuator adapted to translate, a method of limiting torque in the actuator assembly, comprising:
sensing a torque magnitude applied to at least the actuator; and
limiting torque applied to the actuator assembly when at least a predetermined torque magnitude is reached in the actuator.
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 lithographic projection apparatus, comprising:
a movable table;
a projection system configured to project a patterned beam onto a target portion of a substrate, the projection system comprising a final optical element having a bottom surface; and
a liquid supply system configured to at least partly fill a space between the projection system and the table with a liquid to form a liquid reservoir between the bottom surface and the table, the liquid supply system comprising an inlet to provide liquid to the space, and an overflow opening to accept liquid from the liquid reservoir only when the liquid exceeds a certain level above the bottom surface and to remove the liquid that exceeds the level.
2. The apparatus of claim 1, wherein the overflow opening is arranged above the inlet.
3. The apparatus of claim 1, further comprising a barrier configured to bound the liquid, the overflow opening positioned at a side of the barrier opposite to a side of the barrier that faces the table.
4. The apparatus of claim 3, wherein the overflow opening is arranged such that the liquid only flows into the overflow opening when the liquid flows over the top of the barrier.
5. The apparatus of claim 3, wherein the barrier comprises, in the side of the barrier that faces the table, an outlet to remove liquid from the space.
6. The apparatus of claim 1, further comprising a gas tight member configured to seal a space above the liquid.
7. The apparatus of claim 1, further comprising:
a liquid confinement structure extending along at least a part of the boundary of the space between the projection system and the table; and
a passage between at least part of the liquid confinement structure and the projection system, the overflow opening arranged to remove liquid at the end of at least part of the passage.
8. The apparatus of claim 1, further comprising a liquid confinement structure extending along at least a part of the boundary of the space between the projection system and the table and defining an aperture through which the patterned beam is projected, the aperture being between the projection system and the table; and
wherein the inlet to provide liquid to the space has an opening above the aperture, the inlet opening adjacent to an inner periphery of the liquid confinement structure.
9. The apparatus of claim 1, wherein the liquid reservoir covers a smaller area than the substrate.
10. The apparatus of claim 1, further comprising a liquid confinement structure extending along at least a part of the boundary of the space between the projection system and the table, the liquid confinement structure having the inlet to supply liquid to the space and the inlet is arranged to supply liquid to contact a surface, facing toward the table, of an optical element of the projection system, the inlet extending diagonally toward the table and having an opening between the surface of the optical element and the table.
11. The apparatus of claim 1, further comprising:
a liquid confinement structure extending along at least a part of the boundary of the space between the projection system and the table, the liquid confinement structure having a bottom surface facing the table and an upper surface above a surface, facing toward the table, of an optical element of the projection system, the overflow opening being at the upper surface; and
a passage between the optical element and at least part of the liquid confinement structure to allow movement of liquid to the overflow opening,
wherein the inlet to provide liquid has an opening that is located above the bottom surface, liquid from the inlet opening flowing to contact the surface of the optical element, flowing to below the bottom surface and flowing toward the overflow opening.
12. A lithographic projection apparatus comprising:
a movable table;
a projection system configured to project a patterned beam onto a target portion of a substrate, the projection system comprising a final optical element having a bottom surface; and
a liquid supply system configured to at least partly fill a space between the projection system and the table with a liquid to form a liquid reservoir, the liquid supply system comprising:
an inlet to provide liquid to the space, and
an overflow opening to accept liquid from the liquid reservoir only when the liquid exceeds a certain level above the bottom surface and to remove the liquid that exceeds the level, the inlet being below the certain level.
13. The apparatus of claim 12, further comprising a barrier configured to bound the liquid, the overflow opening positioned at a side of the barrier opposite to a side of the barrier that faces the table.
14. The apparatus of claim 12, further comprising:
a liquid confinement structure extending along at least a part of the boundary of the space between the projection system and the table and defining an aperture through which the patterned beam is projected, the aperture being between the projection system and the table; and
the inlet is configured to provide liquid to the space above the aperture, the inlet being adjacent to an inner periphery of the liquid confinement structure.
15. The apparatus of claim 12, further comprising:
a liquid confinement structure extending along at least a part of the boundary of the space between the projection system and the table, the liquid confinement structure having a bottom surface facing the table and an upper surface above the bottom surface of the final optical element, the overflow opening being at the upper surface; and
a passage between the final optical element and at least part of the liquid confinement structure to allow movement of liquid to the overflow opening,
wherein the liquid confinement structure comprises the inlet, the inlet having an opening that is located above the bottom surface of the liquid confinement structure, liquid from the inlet opening flowing to contact the bottom surface of the final optical element, flowing to below the bottom surface of the liquid confinement structure and flowing toward the overflow opening.
16. A lithographic projection apparatus, comprising:
a movable table;
a projection system configured to project a patterned beam onto a target portion of a substrate; and
a liquid handling system configured to at least partly fill a space between the projection system and the table with a liquid to form a liquid reservoir, the liquid handling system comprising:
an overflow opening to accept liquid from the liquid reservoir only when the liquid exceeds a certain level and to remove the liquid that exceeds the level,
a liquid confinement structure extending along at least a part of the boundary of the space between the projection system and the table and defining an aperture through which the patterned beam is projected, the aperture being between the projection system and the table, and
an inlet to provide liquid to the space above the aperture, the inlet adjacent to an inner periphery of the liquid confinement structure.
17. The apparatus of claim 16, wherein the overflow opening is positioned at a side of the liquid confinement structure opposite to a side of the liquid confinement structure that faces the table.
18. The apparatus of claim 16, wherein the inlet is below the certain level.
19. The apparatus of claim 16, further comprising a passage between an optical element of the projection system and at least part of the liquid confinement structure to allow movement of liquid to the overflow opening,
wherein the liquid confinement structure has a bottom surface facing the table and an upper surface above a surface, facing toward the table, of the optical element, the overflow opening being at the upper surface, and
wherein the inlet to provide liquid has an opening that is located above the bottom surface, liquid from the inlet opening flowing to contact the surface of the optical element, flowing to below the bottom surface and flowing toward the overflow opening.
20. A lithographic projection apparatus, comprising:
a movable table;
a projection system configured to project a patterned beam onto a target portion of a substrate; and
a liquid supply system configured to at least partly fill a space between the projection system and the table with a liquid to form a liquid reservoir, the liquid supply system comprising:
an overflow opening to accept liquid from the liquid reservoir only when the liquid exceeds a certain level and to remove the liquid that exceeds the level, and
an inlet to provide liquid to the space, wherein the overflow opening is arranged above the inlet.