US2980317A - Vacuum device - Google Patents

Vacuum device Download PDF

Info

Publication number
US2980317A
US2980317A US728175A US72817558A US2980317A US 2980317 A US2980317 A US 2980317A US 728175 A US728175 A US 728175A US 72817558 A US72817558 A US 72817558A US 2980317 A US2980317 A US 2980317A
Authority
US
United States
Prior art keywords
getter
cathode
filament
vacuum device
helix
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 - Lifetime
Application number
US728175A
Other languages
English (en)
Inventor
Reich Gunter
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.)
Balzers und Leybold Deutschland Holding AG
Original Assignee
E Leybolds Nachfolger AG
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 E Leybolds Nachfolger AG filed Critical E Leybolds Nachfolger AG
Priority to US728175A priority Critical patent/US2980317A/en
Application granted granted Critical
Publication of US2980317A publication Critical patent/US2980317A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/94—Burr-crushing or removing arrangements
    • 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
    • H01J41/14—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of thermionic cathodes
    • H01J41/16—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of thermionic cathodes using gettering substances

Definitions

  • a glass vacuum vessel 1 an incandescent filament cathode 2 is mounted, said cathode being connected to a heating battery 23 via ducts 21 and 22.
  • a getter helix 3 Surrounding the incandescent cathode 2 there is a getter helix 3, which is built self-supporting and can be heated directly via ducts 31 and 32 by the current derived from a second heating battery 33.
  • This getter helix is located opposite cathode 2 and is maintained at a positive potential of 200 to 300 volts by means of a voltage source 34 and serves as electron collector for the ionization arrangement.
  • getter material 4 in wire or strip form is placed about the getter wire.
  • the getter material and the getter metal can be heated at once. Moreover, this heating serves for one-time or step-wise vaporization of the getter metal.
  • a getter metal film 5 condensed on the glass wall 1 receives from the current source 52 a negative potential of 30 to volts relative to the cathode 2 via the duct 51.
  • This getter film 5 serves as the ion collector for the ionization device.
  • a magnetic field of 300 to 500 gauss can be provided parallel to the cathode with the aid of coil 6.
  • the pumping occurs in such a manner that, after the pre-evacuation of the receptacle and pump and the outgassing of the getter and the getter metal, the getter metal is vaporized,
  • a vacuum pumping device comprising a vacuumtight container, a getter coating on the inner wall of said container, an ofitake duct joined near one end of said container, a thermionically-emissive filament supported by and positioned Within said container, means to supply current to said filament, potential means for maintaining said getter coating on the wall of said container at a negative potential with respect to said filament, a getter helix having spaced turns surrounding said filament and carrying a getter material, and means for maintaining said getter helix at a positive potential with respect to said filament, whereby said getter helix serves both as a getter material carrier and source as well as an electron collector.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
US728175A 1957-02-27 1958-04-14 Vacuum device Expired - Lifetime US2980317A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US728175A US2980317A (en) 1957-02-27 1958-04-14 Vacuum device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE358187X 1957-02-27
US728175A US2980317A (en) 1957-02-27 1958-04-14 Vacuum device

Publications (1)

Publication Number Publication Date
US2980317A true US2980317A (en) 1961-04-18

Family

ID=6290768

Family Applications (1)

Application Number Title Priority Date Filing Date
US728175A Expired - Lifetime US2980317A (en) 1957-02-27 1958-04-14 Vacuum device

Country Status (4)

Country Link
US (1) US2980317A (bg)
CH (1) CH358187A (bg)
DE (1) DE1065561B (bg)
GB (1) GB862892A (bg)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173048A (en) * 1961-03-06 1965-03-09 Varian Associates Ion vacuum pump for magnetrons controlled for leakage of magnetron magnet
US3339106A (en) * 1965-05-28 1967-08-29 Canadian Patents Dev Ionization vacuum pump of the orbitron type having a porous annular grid electrode

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL256013A (bg) * 1959-09-25
FR1281403A (fr) * 1960-12-01 1962-01-12 Thomson Houston Comp Francaise Système perfectionné de pompe à vide du type à évaporation et à ionisation
DE102009042417B4 (de) * 2009-07-16 2011-11-24 Vacom Steuerungsbau Und Service Gmbh Orbitron-Ionengetterpumpe

Citations (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
US2726805A (en) * 1953-01-29 1955-12-13 Ernest O Lawrence Ion pump
US2727167A (en) * 1952-04-18 1955-12-13 Westinghouse Electric Corp Ion pump
US2755014A (en) * 1953-04-24 1956-07-17 Gen Electric Ionic vacuum pump device
US2796555A (en) * 1954-06-29 1957-06-18 High Voltage Engineering Corp High-vacuum pump

Patent Citations (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
US2727167A (en) * 1952-04-18 1955-12-13 Westinghouse Electric Corp Ion pump
US2726805A (en) * 1953-01-29 1955-12-13 Ernest O Lawrence Ion pump
US2755014A (en) * 1953-04-24 1956-07-17 Gen Electric Ionic vacuum pump device
US2796555A (en) * 1954-06-29 1957-06-18 High Voltage Engineering Corp High-vacuum pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173048A (en) * 1961-03-06 1965-03-09 Varian Associates Ion vacuum pump for magnetrons controlled for leakage of magnetron magnet
US3339106A (en) * 1965-05-28 1967-08-29 Canadian Patents Dev Ionization vacuum pump of the orbitron type having a porous annular grid electrode

Also Published As

Publication number Publication date
GB862892A (en) 1961-03-15
CH358187A (de) 1961-11-15
DE1065561B (bg)

Similar Documents

Publication Publication Date Title
US2755014A (en) Ionic vacuum pump device
US2796555A (en) High-vacuum pump
US2460175A (en) Ionic vacuum pump
US2754442A (en) Ion source
GB1245153A (en) Improvements in or relating to mass spectrometer leak detectors
US2727167A (en) Ion pump
US3088657A (en) Glow discharge vacuum pump apparatus
US2980317A (en) Vacuum device
US2988657A (en) Ion pump
US2856532A (en) Pulsed ion source
US3436584A (en) Electron emission source with sharply defined emitting area
US2967012A (en) Getter-ion pump
US2925504A (en) High-vacuum pumps for high-voltage acceleration tubes
US2600151A (en) Ion producing mechanism
US2972690A (en) Ion pump and gauge
US3428241A (en) High vacuum pump
US3074621A (en) Getter-ion pump
GB1247501A (en) Ion-getter vacuum pump
US3310226A (en) Vacuum device
US1587321A (en) Pump
GB873906A (en) Improvements in or relating to ion-getter pumps
US2956192A (en) Gettering electron gun
US2214511A (en) Gas discharge device
GB1398167A (en) High pressure ion sources
GB544326A (en) Improvements in or relating to a method and apparatus for electrically heating materials