IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0637201
(2006-12-11)
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등록번호 |
US-7568374
(2009-08-24)
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발명자
/ 주소 |
- Johnson, Mark A.
- Ragatz, Andrew G.
- Peterson, Rex A.
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출원인 / 주소 |
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대리인 / 주소 |
Townsend and Townsend and Crew LLP
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인용정보 |
피인용 횟수 :
1 인용 특허 :
6 |
초록
▼
A gas flux chamber assembly is provided that includes a lift-and-rotate mechanism and a chamber. The chamber is moved between first and second positions, wherein the chamber is positioned over a sample in the first position and is positioned outside of an area above the sample in the second position
A gas flux chamber assembly is provided that includes a lift-and-rotate mechanism and a chamber. The chamber is moved between first and second positions, wherein the chamber is positioned over a sample in the first position and is positioned outside of an area above the sample in the second position. In operation, the chamber is first lifted off of the collar and is then rotated, about a rotational axis outside of the area above the collar. These acts are reversed to move the chamber from the second position to the first position.
대표청구항
▼
What is claimed is: 1. A gas flux chamber assembly comprising: abase plate; a lift-and-rotate mechanism comprising: a first generally cylindrical column affixed to the base plate, the first generally cylindrical column including a generally L-shaped slot; a second generally cylindrical column posit
What is claimed is: 1. A gas flux chamber assembly comprising: abase plate; a lift-and-rotate mechanism comprising: a first generally cylindrical column affixed to the base plate, the first generally cylindrical column including a generally L-shaped slot; a second generally cylindrical column positioned within the first generally cylindrical column; the second generally cylindrical column including a helical slot and being rotatable about an axis; a third generally cylindrical column positioned within the second generally cylindrical column, the third generally cylindrical column including a hole and being rotatable about the axis and moveable along the axis; and a pin passing through the L-shaped slot, the helical slot, and the hole; and a gas flux chamber coupled with the third generally cylindrical column; wherein the lift-and-rotate mechanism is operative to move the gas flux chamber between first and second positions. 2. The gas flux chamber assembly of claim 1, further comprising a motor coupled with the second generally cylindrical column, wherein the motor is operative to cause the second generally cylindrical column to rotate about the axis. 3. The gas flux chamber assembly of claim 2, wherein the motor comprises a gear motor. 4. The gas flux chamber assembly of claim 2, further comprising a first timing belt pulley coupled with the motor, a second timing belt pulley coupled with the second generally cylindrical column, and a timing belt coupling the first timing belt pulley with the second timing belt pulley. 5. The gas flux chamber assembly of claim 2, wherein actuation of the motor causes the lift-and-rotate mechanism to move the gas flux chamber from the first position to the second position. 6. The gas flux chamber assembly of claim 1, wherein the first position is over a sample and the second position is outside of an area over the sample. 7. The gas flux chamber assembly of claim 1, wherein the gas flux chamber moves approximately 180 degrees between the first position and the second position. 8. The gas flux chamber assembly of claim 1, further comprising a collar coupled with the base plate. 9. The gas flux chamber assembly of claim 8, wherein the gas flux chamber is positioned on the collar in the first position and is positioned outside of an area above the collar in the second position. 10. The gas flux chamber assembly of claim 1, further comprising at least one sensor positioned to detect the position of the gas flux chamber. 11. The gas flux chamber assembly of claim 10, wherein the at least one sensor comprises at least one Hall-effect sensor. 12. The gas flux chamber assembly of claim 10, further comprising a flag coupled with the pin, wherein the at least one sensor is operative to detect movement of the flag. 13. The gas flux chamber assembly of claim 1, further comprising a toothed wheel coupled with the second generally cylindrical column and a sensor positioned to detect movement of the toothed wheel. 14. The gas flux chamber assembly of claim 13, wherein the sensor comprises a Hall-effect sensor. 15. The gas flux chamber assembly of claim 1, further comprising an enclosure, wherein the first generally cylindrical column, the second generally cylindrical column, and at least a portion of the third generally cylindrical column are contained within the enclosure. 16. The gas flux chamber assembly of claim 2, further comprising an enclosure, wherein the first generally cylindrical column, the second generally cylindrical column, at least a portion of the third generally cylindrical column, and the motor are contained within the enclosure. 17. The gas flux chamber assembly of claim 1, further comprising a plurality of feet removably coupled with the base plate. 18. The gas flux chamber assembly of claim 1, wherein a lead angle of the helical slot in the second generally cylindrical column increases near the top of the slot. 19. The gas flux chamber assembly of claim 1, wherein the helical slot comprises two different lead angles, one of which is engaged by the pin during lift, and the other of which is engaged during rotation. 20. The gas flux chamber assembly of claim 1, further comprising: a spring disk coupled with the gas flux chamber; and a chamber support structure coupled with the lift-and-rotate mechanism. 21. A method for use with a gas flux chamber assembly, the method comprising: (a) affixing a first generally cylindrical column to a base plate, the first generally cylindrical column including a generally L-shaped slot; (b) positioning a second generally cylindrical column, including a helical slot, within the first generally cylindrical column such that the second generally cylindrical column is rotatable about an axis; (c) positioning a third generally cylindrical column, including a hole, within the second generally cylindrical column such that the third generally cylindrical column is rotatable about the axis and moveable along the axis; (d) positioning a pin such that it passes through the L-shaped slot, the helical slot, and the hole; and (e) coupling a gas flux chamber to the third generally cylindrical column; wherein rotation of the second generally cylindrical column causes the gas flux chamber to be lifted and rotated from a first position to a second position. 22. The method of claim 21, further comprising: coupling a motor to the second generally cylindrical column, wherein actuation of the motor causes the second generally cylindrical column to rotate and lift and rotate the gas flux chamber from a first position to a second position. 23. The method of claim 21, wherein rotating the second generally cylindrical column causes the gas flux chamber to be lifted and rotated from a first position that is over a sample to a second position that is outside of an area over the sample. 24. The method of claim 21, wherein the second position comprises one of a number of predefined positions. 25. The method of claim 21, wherein the gas flux chamber moves approximately 180 degrees between the first position and the second position. 26. The method of claim 21, further comprising determining the position of the gas flux chamber using at least one sensor. 27. The method of claim 21, further comprising determining the position of the gas flux chamber using at least one sensor and a toothed wheel. 28. The method of claim 21, further comprising placing the first generally cylindrical column, the second generally cylindrical column, and at least a portion of the third generally cylindrical column within an enclosure. 29. The method of claim 22, further comprising placing the first generally cylindrical column, the second generally cylindrical column, at least a portion of the third generally cylindrical column, and the motor within an enclosure. 30. A gas flux chamber assembly comprising: a base plate; a lift-and-rotate mechanism comprising: a motor coupled to the base plate, the motor being fixed with respect to the base plate; and an arm coupled with the motor, the arm being rotatable about an axis and movable along the axis; and a gas flux chamber coupled with the arm, the gas flux chamber being movable with respect to the base plate; wherein the lift-and-rotate mechanism is operative to move the gas flux chamber between first and second positions. 31. The gas flux chamber assembly of claim 30, wherein the motor comprises a gear motor. 32. The gas flux chamber assembly of claim 30, further comprising: a first generally cylindrical column affixed to the base plate, the first generally cylindrical column including a generally L-shaped slot; a second generally cylindrical column positioned within the first generally cylindrical column; the second generally cylindrical column including a helical slot and being rotatable about an axis; a third generally cylindrical column positioned within the second generally cylindrical column, the third generally cylindrical column including a hole and being rotatable about the axis and moveable along the axis; and a pin passing through the L-shaped slot, the helical slot, and the hole, wherein the arm is coupled with the third generally cylindrical column and the motor is coupled with the second generally cylindrical column. 33. The gas flux chamber assembly of claim 32, further comprising a first timing belt pulley coupled with the motor, a second timing belt pulley coupled with the second generally cylindrical column, and a timing belt coupling the first timing belt pulley with the second timing belt pulley. 34. The gas flux chamber assembly of claim 30, wherein actuation of the motor causes the arm to lift and rotate the gas flux chamber from a first position to a second position. 35. The gas flux chamber assembly of claim 34, wherein the first position is over a sample and the second position is outside of an area over the sample. 36. The gas flux chamber assembly of claim 34, wherein the gas flux chamber moves approximately 180 degrees between the first position and the second position. 37. The gas flux chamber assembly of claim 30, further comprising a collar coupled with the base plate. 38. The gas flux chamber assembly of claim 37, wherein the gas flux chamber is positioned on the collar in a first position and is positioned outside of an area above the collar in a second position. 39. The gas flux chamber assembly of claim 30, further comprising at least one sensor positioned to detect the position of the gas flux chamber. 40. The gas flux chamber assembly of claim 39, wherein the at least one sensor comprises at least one Hall-effect sensor. 41. The gas flux chamber assembly of claim 39, further comprising a flag coupled with the pin, wherein the at least one sensor is operative to detect movement of the flag. 42. The gas flux chamber assembly of claim 30, further comprising a toothed wheel coupled with the gas flux chamber and a sensor positioned to detect movement of the toothed wheel. 43. The gas flux chamber assembly of claim 42, wherein the sensor comprises a Hall-effect sensor. 44. The gas flux chamber assembly of claim 30, further comprising an enclosure, wherein the motor is contained within the enclosure. 45. The gas flux chamber assembly of claim 32, further comprising an-enclosure, wherein the first generally cylindrical column, the second generally cylindrical column, at least a portion of the third generally cylindrical column, and the motor are contained within the enclosure. 46. The gas flux chamber assembly of claim 30, further comprising a plurality of feet removably coupled with the base plate. 47. The gas flux chamber assembly of claim 32, wherein a lead angle of the helical slot in the second generally cylindrical column increases near the top of the slot. 48. The gas flux chamber assembly of claim 32, wherein the helical slot comprises two different lead angles, one of which is engaged by the pin during lift, and the other of which is engaged during rotation.
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