GB1239192A - - Google Patents

Info

Publication number
GB1239192A
GB1239192A GB1239192DA GB1239192A GB 1239192 A GB1239192 A GB 1239192A GB 1239192D A GB1239192D A GB 1239192DA GB 1239192 A GB1239192 A GB 1239192A
Authority
GB
United Kingdom
Prior art keywords
housing
seive
jan
bodies
evacuated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of GB1239192A publication Critical patent/GB1239192A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/06—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for evacuating by thermal means
    • F04B37/08—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for evacuating by thermal means by condensing or freezing, e.g. cryogenic pumps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Particle Accelerators (AREA)

Abstract

1,239,192. Vacuum pumps. PERKINELMER CORP. Jan. 10, 1969 [Jan. 24, 1968], No.1577/69. Heading F1N. A cryosorption pump, for emersion in a bath of liquid nitrogen, comprises a sheet metal parallelepiped housing 32-39 having an inlet 50 for evacuated gas to pass into hollow elongated perforated bodies 42 disposed within the housing, the space between the bodies 42 and the housing being filled with molecular seive material 47 into which extends heat conducting strips 46 brazed to the inside of the housing. Each body 42 has a flange by which it is secured to a stiffener 44 spot welded to the housing sides 36, 38. The molecular seive material is preferably crystalline calcium aluminosilicate. Tubes 64, 66 extending from the top to the bottom of the housing receive electrical heaters 60, 62 for purging the seive material of absorbed and adsorbed gases. A chamber may be evacuated by a plurality of similar pumps (17, 18, 19), Fig. 1 (not shown) used in succession.
GB1239192D 1968-01-24 1969-01-10 Expired GB1239192A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70021668A 1968-01-24 1968-01-24

Publications (1)

Publication Number Publication Date
GB1239192A true GB1239192A (en) 1971-07-14

Family

ID=24812633

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1239192D Expired GB1239192A (en) 1968-01-24 1969-01-10

Country Status (4)

Country Link
US (1) US3490247A (en)
DE (1) DE1901853A1 (en)
FR (1) FR2000693A1 (en)
GB (1) GB1239192A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2048253A5 (en) * 1969-12-01 1971-03-19 Air Liquide
CH627314A5 (en) * 1978-01-24 1981-12-31 Bbc Brown Boveri & Cie
USRE31665E (en) * 1980-04-01 1984-09-11 Cvi Incorporated Cryopump apparatus
US4275566A (en) * 1980-04-01 1981-06-30 Pennwalt Corporation Cryopump apparatus
US4466252A (en) * 1982-09-29 1984-08-21 Cvi Incorporated Cryopump
US4494381A (en) * 1983-05-13 1985-01-22 Helix Technology Corporation Cryopump with improved adsorption capacity

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3309844A (en) * 1963-11-29 1967-03-21 Union Carbide Corp Process for adsorbing gases
US3335550A (en) * 1964-04-24 1967-08-15 Union Carbide Corp Cryosorption apparatus
US3344852A (en) * 1964-06-15 1967-10-03 Bergson Gustav Gas drying apparatus
US3371499A (en) * 1966-11-02 1968-03-05 Union Carbide Corp Cryosorption vacuum pumping system

Also Published As

Publication number Publication date
FR2000693A1 (en) 1969-09-12
DE1901853A1 (en) 1969-10-09
US3490247A (en) 1970-01-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees