GB1166943A - Cathode Arrangements for Getter Ion Pumps - Google Patents

Cathode Arrangements for Getter Ion Pumps

Info

Publication number
GB1166943A
GB1166943A GB8876/67A GB887667A GB1166943A GB 1166943 A GB1166943 A GB 1166943A GB 8876/67 A GB8876/67 A GB 8876/67A GB 887667 A GB887667 A GB 887667A GB 1166943 A GB1166943 A GB 1166943A
Authority
GB
United Kingdom
Prior art keywords
grid
component
getter
getter material
cathode
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
GB8876/67A
Inventor
Laurence Laurenson
Jean Armand Vaumoron
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.)
Edwards High Vacuum International Ltd
Original Assignee
Edwards High Vacuum International Ltd
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 by Edwards High Vacuum International Ltd filed Critical Edwards High Vacuum International Ltd
Priority to GB8876/67A priority Critical patent/GB1166943A/en
Priority to US706354A priority patent/US3496400A/en
Publication of GB1166943A publication Critical patent/GB1166943A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J41/18—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of cold cathodes
    • H01J41/20—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of cold cathodes using gettering substances

Landscapes

  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

1,166,943. Ion pumps. EDWARDS HIGH VACUUM INTERNATIONAL Ltd. 20 Feb., 1968 [24 Feb., 1967], No. 8876/67. Heading H1D. A getter-ion pump comprises a cathode having at least two components of getter material, one of the components being an expanded sheetmetal grid 2 or 3 spaced from the active surface of the second component 1, so that in use material sputtered from an active surface of component 1 is deposited on the inactive surface of the grid. A plurality of grids may be provided, the grid intersections of one grid overlying the grid interspaces of its adjacent grid. The second component may be a plate of stainless steel or it may be of getter material. Alternate grids may be of titanium and copper which have different pumping speeds. Silver may also be used as a getter material. The pump preferably has a cellular anode with two cathode structures on either side of the anode, and a magnetic field may be used. The construction of the cathodes is stated to facilitate pumping of inert gases up to a pressure of 3 x 10<SP>-2</SP> torr.
GB8876/67A 1967-02-24 1967-02-24 Cathode Arrangements for Getter Ion Pumps Expired GB1166943A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB8876/67A GB1166943A (en) 1967-02-24 1967-02-24 Cathode Arrangements for Getter Ion Pumps
US706354A US3496400A (en) 1967-02-24 1968-02-19 Cathode arrangements for getter ion pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8876/67A GB1166943A (en) 1967-02-24 1967-02-24 Cathode Arrangements for Getter Ion Pumps

Publications (1)

Publication Number Publication Date
GB1166943A true GB1166943A (en) 1969-10-15

Family

ID=9860994

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8876/67A Expired GB1166943A (en) 1967-02-24 1967-02-24 Cathode Arrangements for Getter Ion Pumps

Country Status (2)

Country Link
US (1) US3496400A (en)
GB (1) GB1166943A (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2208987A (en) * 1938-05-24 1940-07-23 Gen Electric Electric incandescent lamp
US2351026A (en) * 1941-04-01 1944-06-13 Zenith Radio Corp Thermionic tube
DE1000535B (en) * 1955-07-01 1957-01-10 Siemens Ag Tensioning grid of the cross grid type with two layers of parallel wires arranged directly on top of one another
BE625037A (en) * 1961-11-21
US3619697A (en) * 1964-07-09 1971-11-09 Westinghouse Electric Corp Mercury vapor discharge lamp and pressure-regulating means therefor

Also Published As

Publication number Publication date
US3496400A (en) 1970-02-17

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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