Vapor trap system and associated method for detecting volatile organic chemical vapors
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01N-001/24
G01N-033/24
출원번호
US-0962950
(2001-09-25)
발명자
/ 주소
Boyd, Mark Kevin
Clark, Yale Lynn
출원인 / 주소
PERTECT Detectors, Inc.
대리인 / 주소
Donahue, III, Dennis J. M.Husch & Eppenberger, LLC
인용정보
피인용 횟수 :
4인용 특허 :
13
초록▼
A vapor trap for detecting VOCs includes a housing, having a first end portion, a second end portion and at least one opening for receiving gas vapor. The housing is at least partially buried in ground with a vapor containment mechanism detachably connected to the first end portion of the housing. T
A vapor trap for detecting VOCs includes a housing, having a first end portion, a second end portion and at least one opening for receiving gas vapor. The housing is at least partially buried in ground with a vapor containment mechanism detachably connected to the first end portion of the housing. The vapor containment mechanism can be removed after a predetermined time period and replaced with a vapor sampling mechanism. An organic vapor analyzer can be connected in fluid relationship to the vapor sampling mechanism to measure VOCs. Optionally, a vacuum pump can be utilized to draw vapor into the vapor trap and then subsequently into the organic vapor analyzer. There can be a first selector valve located between the vapor sampling mechanism and the vacuum pump and a second selector valve located between the vapor sampling mechanism and the organic vapor analyzer. A preferred organic vapor analyzer is a photo-ionization detector. The method for detecting VOCs utilizing a vapor trap includes at least partially burying a housing in ground that includes a first end portion, a second end portion and at least one opening and sealing the housing with a vapor containment mechanism, e.g., plug. After a predetermined time period, the vapor containment mechanism is removed and replaced with a vapor sampling mechanism. The housing is buried in vapor transmissive material and applied with sealing material to the top portion of the housing to position the housing in a predetermined location. The vapor sampling mechanism is connected in fluid relationship with an organic vapor analyzer with an optional vacuum pump for drawing additional vapors from the housing into the organic vapor analyzer.
대표청구항▼
A vapor trap for detecting VOCs includes a housing, having a first end portion, a second end portion and at least one opening for receiving gas vapor. The housing is at least partially buried in ground with a vapor containment mechanism detachably connected to the first end portion of the housing. T
A vapor trap for detecting VOCs includes a housing, having a first end portion, a second end portion and at least one opening for receiving gas vapor. The housing is at least partially buried in ground with a vapor containment mechanism detachably connected to the first end portion of the housing. The vapor containment mechanism can be removed after a predetermined time period and replaced with a vapor sampling mechanism. An organic vapor analyzer can be connected in fluid relationship to the vapor sampling mechanism to measure VOCs. Optionally, a vacuum pump can be utilized to draw vapor into the vapor trap and then subsequently into the organic vapor analyzer. There can be a first selector valve located between the vapor sampling mechanism and the vacuum pump and a second selector valve located between the vapor sampling mechanism and the organic vapor analyzer. A preferred organic vapor analyzer is a photo-ionization detector. The method for detecting VOCs utilizing a vapor trap includes at least partially burying a housing in ground that includes a first end portion, a second end portion and at least one opening and sealing the housing with a vapor containment mechanism, e.g., plug. After a predetermined time period, the vapor containment mechanism is removed and replaced with a vapor sampling mechanism. The housing is buried in vapor transmissive material and applied with sealing material to the top portion of the housing to position the housing in a predetermined location. The vapor sampling mechanism is connected in fluid relationship with an organic vapor analyzer with an optional vacuum pump for drawing additional vapors from the housing into the organic vapor analyzer. ning a work space with an anvil adapter at one end and a substantially flat face guide surface on one side of the work space, wherein the guide surface extends along a majority of length of the work space on the side, and wherein the guide surface is flat along an entire width of the side along the majority of length of the side; and a movable adapter for working a piece in the work space against the anvil adapter, the movable adapter being movably mounted to the frame to move in the work space relative to the frame along an axis of translation, the movable adapter having a substantially flat face seating surface seated against the guide surface of the frame; wherein, when the movable adapter is moved, the seating surface of the movable adapter rides upon the guide surface, the seating surface and guide surface interfacing with each other for maintaining the movable adapter in a predetermined orientation relative to the frame. 2. The tool according to claim 1, wherein the tool is portable. 3. The tool according to claim 1, further comprising a ram movably mounted to the frame for moving the movable adapter, and a rapid advance actuator movably mounted to the ram for advancing the ram at two rates of advance. 4. The tool according to claim 3, further comprising a hydraulic fluid conduit system disposed in the frame to conduit hydraulic fluid from a hydraulic fluid reservoir to the ram, the ram having a hydraulic fluid contact surface with a chamber formed therein. 5. The tool according to claim 4, wherein the rapid advance actuator is located inside the chamber. 6. The tool according to claim 4, further comprising a spring connected to the frame for biasing the ram opposite to an advance direction of the ram, and a spring holder mounted to the frame for supporting the spring in the frame. 7. A hydraulic tool comprising: a frame defining a work space with an anvil adapter at one end and a substantially flat face guide surface on one side of the work space; a movable adapter for working a piece in the work space against the anvil adapter, the movable adapter being movably mounted to the frame to move in the work space relative to the frame along an axis of translation, the movable adapter having a substantially flat face seating surface seated against the guide surface of the frame; a ram movably mounted to the frame for moving the movable adapter; a rapid advance actuator for advancing the ram at two rates of advance; a hydraulic fluid conduit system disposed in the frame to conduit hydraulic fluid from a hydraulic fluid reservoir to the ram, the ram having a hydraulic fluid contact surface with a chamber formed therein; a spring connected to the frame for biasing the ram opposite to an advance direction of the ram; and a spring holder mounted to the frame for supporting the spring in the frame, wherein, when the movable adapter is moved, the seating surface of the movable adapter rides upon the guide surface, the seating surface and guide surface interfacing with each other for maintaining the movable adapter in a predetermined orientation relative to the frame, wherein the spring holder supports the spring inside the chamber in the ram, and wherein the spring holder has an actuator hydraulic cylinder formed therein for the rapid advance actuator. 8. The tool according to claim 7, wherein the spring holder has a hydraulic fluid passage connecting the actuator hydraulic cylinder to the hydraulic fluid conduit system in the frame. 9. The tool according to claim 3, wherein the rapid advance actuator has one end contacting the ram and another end with a hydraulic fluid contact surface. 10. The tool according to claim 3, wherein the rapid advance actuator has a hydraulic fluid passage formed therein for directing hydraulic fluid through the rapid advance actuator to a hydraulic fluid contact surface of the ram. 11. A hydraulic tool comprising: a frame comprising a one-piece frame member having an anvil adapter and a substantially flat guide surface; and a movable adapter movably mounted to the frame to move relative to the frame along an axis of translation, the movable adapter being adapted for working a workpiece in cooperation with the anvil adapter and having a substantially flat support surface seated against the guide surface; wherein the support surface and guide surface interface to prevent rotation of the movable adapter about the axis of translation relative to the frame, and wherein the one-piece frame member includes a bearing surface adapted for maintaining alignment of the movable adapter with the axis of translation, the bearing surface being disposed on an inside surface of the one-piece frame member so that the movable adapter does not contact the bearing surface. 12. The tool according to claim 11, wherein the frame includes a collar with a bore for a ram to pass through the collar and move the movable adapter, an inner surface of the bore defines the bearing surface of the frame. 13. The tool according to claim 11, wherein the tool is portable. 14. The tool according to claim 11, further comprising a hydraulic power section connected to the frame. 15. The tool according to claim 14, wherein the hydraulic power section has a ram operably connected to the movable adapter for moving the adapter relative to the frame, the ram being seated at least in part against the bearing surface of the frame. 16. The tool according to claim 15, wherein the hydraulic power section has a rapid advance actuator for advancing the ram relative to the frame at two different rates of advance. 17. The tool according to claim 16, wherein the rapid advance actuator is housed in the ram. 18. The tool according to claim 15, wherein the frame is free to rotate about the axis of translation relative to the ram. 19. A hydraulic tool comprising: a frame with a hydraulic fluid reservoir connected to the frame; a ram assembly movably mounted to the frame, the ram assembly comprising an outer ram and an inner ram housed in the outer ram, both inner and outer rams being movable relative to the frame and each other; and a hydraulic fluid conduit system disposed in the frame between the ram assembly and the fluid reservoir; wherein the outer ram is adapted to be advanced relative to the frame by the inner ram and by hydraulic fluid pressure against the outer ram, the outer ram being advanced by the inner ram pressing against the outer ram when hydraulic fluid pressure in the conduit system is below a predetermined pressure, and the outer ram being advanced by hydraulic fluid pressure against the outer ram when hydraulic fluid pressure in the conduit system is above the predetermined pressure. 20. The tool according to claim 19, wherein the outer ram of the ram assembly has two different rates of advancement for a given pump stroke. 21. The tool according to claim 20, wherein when the outer ram is advanced by the inner ram, the outer ram advances at a higher rate of advance then when the outer ram advances under hydraulic fluid pressure. 22. The tool according to claim 20, wherein the inner ram includes a hydraulic fluid passage which is in communication with the conduit system allowing hydraulic fluid from the conduit system to flow through the inner ram. 23. A hydraulic tool comprising: a frame with a hydraulic fluid reservoir connected to the frame; a ram assembly movably mounted to the frame, the ram assembly comprising an outer ram and an inner ram housed in the outer ram, both inner and outer rams being movable relative to the frame; and a hydraulic fluid conduit system disposed in the frame between the ram assembly and the fluid reservoir; wherein the outer ram is adapted to be advanced relative to the frame by the inner ram and by hydraulic fluid pressure against the outer ram, the outer ram being advanced by the inner ram pressing against the outer ram when hydraulic fluid pressure in the conduit system is below a predetermined p
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이 특허에 인용된 특허 (13)
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Weigold Theodore S. (Boise ID) Galayda Stephen J. (Wilmington DE) Guyer Orville B. (West Bend WI), Method and apparatus for use in photochemically oxidizing gaseous organic compounds.
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