Refrigeration – Low pressure cold trap process and apparatus
Patent
1980-04-01
1981-06-30
Capossela, Ronald C.
Refrigeration
Low pressure cold trap process and apparatus
55269, 62268, 417901, B01D 800
Patent
active
042755662
ABSTRACT:
Cryopump apparatus includes means for supplying cryogenic fluid, means for supplying higher temperature refrigerant fluid, a panel having heat exchange surfaces on respective opposite sides thereof, with a conduit conducting cryogenic fluid therethrough, and a zigzag passageway formed by opposite sides of two radiation shields in spaced relationship with each other having the panel therebetween. The radiation shields are spaced from the panel, optically enclosing the panel therewithin. Corresponding edges of adjacent shields define open bottom channel-configured passageways for flow of gas therethrough to respective heat exchange surfaces of a panel interjacent the shields. The shields include conduits for flow of refrigerant fluid therethrough. Heat insulative positioning spacer means contact two adjacent panels and a shield therebetween, maintaining the panels and shield in spaced relationship.
REFERENCES:
patent: 3081068 (1963-03-01), Milleron
patent: 3122896 (1964-03-01), Hickey
patent: 3131396 (1964-04-01), Santeler et al.
patent: 3137551 (1964-06-01), Mark
patent: 3144200 (1964-08-01), Taylor et al.
patent: 3175373 (1965-03-01), Holkeboer et al.
patent: 3177672 (1965-04-01), Seelandt
patent: 3256706 (1966-06-01), Hansen
patent: 3485054 (1969-12-01), Hogan
patent: 3488978 (1970-01-01), Della Porta et al.
patent: 3490247 (1970-01-01), Wing
patent: 3579997 (1971-05-01), Thibault et al.
patent: 3579998 (1971-05-01), Rapinat
patent: 3668881 (1972-06-01), Thibault et al.
patent: 3769806 (1973-11-01), Boissin et al.
patent: 4072025 (1978-02-01), Thibault
patent: 4121430 (1978-10-01), Bachler et al.
patent: 4148196 (1979-04-01), French et al.
patent: 4150549 (1979-04-01), Longsworth
patent: 4198829 (1980-04-01), Carle
patent: 4207746 (1980-06-01), McFarlin
"Measurements of Adsorption Isotherms and Pumping Speed of Helium on Molecular Sieve in the 10-11-10-7 Torr Range at 4.2 Kelvin," Journal of Vacuum Science and Technology, vol. 11, No. 1, pp. 331-336, Jan.-Feb. 1974.
"Performance Assessment for Cryopumping," Vacuum, vol. 20, No. 11, pp. 477-480, Nov. 1970.
"Some Component Designs Permitting Ultra-High Vacuum with Large Oil Diffusion Pumps," pp. 140-143, Vacuum Symposium Translations, of A.V.C., Inc. (1958).
"Introduction to Cryopump Design," Vacuum, vol. 26, No. 1, pp. 11-16, Jan. 1976.
"Vacuum Technology," International Science and Technology,Jan. 1963.
"Calculation of Cyropumping Speeds by the Monte Carlo Method," Vacuum, vol. 21, No. 5, pp. 167-173, May, 1971.
Capossela Ronald C.
Pennwalt Corporation
LandOfFree
Cryopump apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cryopump apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cryopump apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2433585