GB905737A - Improvements in vacuum pumps - Google Patents

Improvements in vacuum pumps

Info

Publication number
GB905737A
GB905737A GB18544/60A GB1854460A GB905737A GB 905737 A GB905737 A GB 905737A GB 18544/60 A GB18544/60 A GB 18544/60A GB 1854460 A GB1854460 A GB 1854460A GB 905737 A GB905737 A GB 905737A
Authority
GB
United Kingdom
Prior art keywords
cathode
disc
getter
adjacent
tubes
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
GB18544/60A
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.)
Ultek Corp
Original Assignee
Ultek Corp
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 Ultek Corp filed Critical Ultek Corp
Publication of GB905737A publication Critical patent/GB905737A/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

  • Particle Accelerators (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Electron Tubes For Measurement (AREA)

Abstract

905,737. Getter-ion pumps. ULTEK CORPORATION. May 25, 1960 [June 15, 1959], No. 18544/60. Class 39 (1). In an electronic vacuum arc discharge getter pump there is an anode 21, cathode plates 34, 36 spaced from each end thereof, and an axial magnetic field, and means such as a magnetic disc 41 are provided adjacent at least one of the cathode plates for concentrating the magnetic field within the envelope adjacent one polepiece. Disc 41 is of soft steel or iron and is secured to cathode disc 34. The permanent magnet 42 has a mild steel or soft iron polepieces 43 and 44, 46. In a modification, Fig. 3 (not shown), a hollow cylindrical polepiece is associated with internal concentrating discs adjacent each cathode. The cathode plates 34, 36 have centring tabs and cathode 36 is spot welded to stainless steel spacer 38. The cathode discs are of metal, e.g. titanium, zirconium, or alloys. The anode lead-in arrangement includes a ceramic insulator 27. Metal washers 30, 31 hold strap 22 on lead 23. The envelope 13 is of stainless steel. The device is used to getter klystrons, travelling wave tubes, X-ray tubes, or cathode-ray display tubes. Inlet and outlet tabulations 17, 18 are provided and the outlet tabulation may connect through an aperture in the lower cathode, Fig. 3 (not shown).
GB18544/60A 1959-06-15 1960-05-25 Improvements in vacuum pumps Expired GB905737A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US820373A US3070283A (en) 1959-06-15 1959-06-15 Vacuum pump

Publications (1)

Publication Number Publication Date
GB905737A true GB905737A (en) 1962-09-12

Family

ID=25230595

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18544/60A Expired GB905737A (en) 1959-06-15 1960-05-25 Improvements in vacuum pumps

Country Status (2)

Country Link
US (1) US3070283A (en)
GB (1) GB905737A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216652A (en) * 1962-09-10 1965-11-09 Hughes Aircraft Co Ionic vacuum pump
US3217974A (en) * 1962-11-23 1965-11-16 Hughes Aircraft Co Dual surface ionic pump with axial anode support
US3368100A (en) * 1963-11-25 1968-02-06 Gen Electric Vacuum pump having a radially segmented, annular anode
CH479161A (en) * 1967-08-25 1969-09-30 Schoenhuber Max Josef Dr Ing Ion getter pump for creating and maintaining a high vacuum
IT1156530B (en) * 1982-09-14 1987-02-04 Varian Spa IONIC PUMP WITH CATHODE PERFECTLY STRUCTURE PARTICULARLY FOR PUMPING NOBLE GASES
US6004104A (en) * 1997-07-14 1999-12-21 Duniway Stockroom Corp. Cathode structure for sputter ion pump
US6388385B1 (en) 1999-03-19 2002-05-14 Fei Company Corrugated style anode element for ion pumps

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB684710A (en) * 1950-07-19 1952-12-24 Ass Elect Ind Improvements relating to high vacuum pumps
US2755014A (en) * 1953-04-24 1956-07-17 Gen Electric Ionic vacuum pump device
NL98408C (en) * 1953-09-24
GB797232A (en) * 1955-07-11 1958-06-25 Manfred Von Ardenne Improvements in or relating to high vacuum ion pumps

Also Published As

Publication number Publication date
US3070283A (en) 1962-12-25

Similar Documents

Publication Publication Date Title
SE331137B (en)
GB642083A (en) Improvements relating to cathode ray tubes
JPH0577142B2 (en)
GB905737A (en) Improvements in vacuum pumps
US3236442A (en) Ionic vacuum pump
GB942546A (en) Glow discharge vacuum getter pump apparatus
US3216652A (en) Ionic vacuum pump
GB1321018A (en) Switching device
US3018944A (en) Electrical vacuum pump apparatus
US3231175A (en) Electrical vacuum pump
US3117247A (en) Vacuum pump
GB625530A (en) Improvements in or relating to phase modulating apparatus
US3324729A (en) Method and apparatus for detecting leaks
US3125283A (en) Vacuum pump
GB1053215A (en)
GB1140798A (en) Improvements in and relating to high vacuum pumps
GB1013622A (en) Improvements in electron-beam tubes and electron guns for use therein
GB895002A (en) Improvements in and relating to high vacuum ion pumps
US3176907A (en) Ion pump
US3078387A (en) Magnetron
US3377495A (en) Glow discharge apparatus having a stacked array of magnets
GB1398167A (en) High pressure ion sources
GB748945A (en) Improvements in or relating to electron discharge tubes
GB873024A (en) Glow discharge apparatus
GB934415A (en) Improvements in electronic vacuum pumps