GB482884A - Improved process and apparatus for producing high vacuum - Google Patents

Improved process and apparatus for producing high vacuum

Info

Publication number
GB482884A
GB482884A GB18762/36A GB1876236A GB482884A GB 482884 A GB482884 A GB 482884A GB 18762/36 A GB18762/36 A GB 18762/36A GB 1876236 A GB1876236 A GB 1876236A GB 482884 A GB482884 A GB 482884A
Authority
GB
United Kingdom
Prior art keywords
backing pump
communication
absorption
bristles
vessel
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
GB18762/36A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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
Priority to NL45601D priority Critical patent/NL45601C/xx
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to GB18762/36A priority patent/GB482884A/en
Priority to US147514A priority patent/US2160863A/en
Publication of GB482884A publication Critical patent/GB482884A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J9/385—Exhausting vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/168—Pumps specially adapted to produce a vacuum
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
    • H01J41/12—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
GB18762/36A 1936-07-06 1936-07-06 Improved process and apparatus for producing high vacuum Expired GB482884A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL45601D NL45601C (es) 1936-07-06
GB18762/36A GB482884A (en) 1936-07-06 1936-07-06 Improved process and apparatus for producing high vacuum
US147514A US2160863A (en) 1936-07-06 1937-06-10 High vacuum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB18762/36A GB482884A (en) 1936-07-06 1936-07-06 Improved process and apparatus for producing high vacuum

Publications (1)

Publication Number Publication Date
GB482884A true GB482884A (en) 1938-04-06

Family

ID=10117956

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18762/36A Expired GB482884A (en) 1936-07-06 1936-07-06 Improved process and apparatus for producing high vacuum

Country Status (3)

Country Link
US (1) US2160863A (es)
GB (1) GB482884A (es)
NL (1) NL45601C (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299458A2 (en) * 1987-07-15 1989-01-18 Hitachi, Ltd. Apparatus for treatment of a process gas

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2636664A (en) * 1949-01-28 1953-04-28 Hertzler Elmer Afton High vacuum pumping method, apparatus, and techniques
US2757840A (en) * 1952-07-18 1956-08-07 Leitz Ernst Gmbh Method of and apparatus for evacuating vessels
US2808980A (en) * 1953-09-23 1957-10-08 Westinghouse Electric Corp Electrical vacuum pump
DE1046249B (de) * 1956-04-05 1958-12-11 Dr Gerhard Fricke Verfahren und Vorrichtung zur Erzeugung eines hohen Vakuums
US3210915A (en) * 1961-03-29 1965-10-12 Bendix Balzers Vacuum Inc Sorption pump for pumping off gases and vapors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299458A2 (en) * 1987-07-15 1989-01-18 Hitachi, Ltd. Apparatus for treatment of a process gas
EP0299458A3 (en) * 1987-07-15 1989-04-05 Hitachi, Ltd. Apparatus for treatment of a process gas

Also Published As

Publication number Publication date
US2160863A (en) 1939-06-06
NL45601C (es)

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