FR504248A - Perfectionnements au manomètre à ionisation - Google Patents

Perfectionnements au manomètre à ionisation

Info

Publication number
FR504248A
FR504248A FR504248A FR504248DA FR504248A FR 504248 A FR504248 A FR 504248A FR 504248 A FR504248 A FR 504248A FR 504248D A FR504248D A FR 504248DA FR 504248 A FR504248 A FR 504248A
Authority
FR
France
Prior art keywords
ionization manometer
manometer
ionization
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
FR504248A
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR504248A publication Critical patent/FR504248A/fr
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
    • H01J41/02—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas
    • H01J41/04—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas with ionisation by means of thermionic cathodes
FR504248A 1918-09-27 1919-09-26 Perfectionnements au manomètre à ionisation Expired FR504248A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US255883A US1334143A (en) 1918-09-27 1918-09-27 Ionization-manometer

Publications (1)

Publication Number Publication Date
FR504248A true FR504248A (fr) 1920-06-28

Family

ID=22970250

Family Applications (1)

Application Number Title Priority Date Filing Date
FR504248A Expired FR504248A (fr) 1918-09-27 1919-09-26 Perfectionnements au manomètre à ionisation

Country Status (2)

Country Link
US (1) US1334143A (fr)
FR (1) FR504248A (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2455437A (en) * 1943-11-13 1948-12-07 Distillation Products Inc Ionization gauge circuits
US2438550A (en) * 1944-02-05 1948-03-30 Brown Instr Co Method of and apparatus for indicating the condition of an atmosphere
US2604514A (en) * 1944-08-16 1952-07-22 Hugh G Neil Ionization gauge regulation
US2582647A (en) * 1949-01-04 1952-01-15 Phillips Petroleum Co Method and means for indicating changes in the composition of a gas
US2605431A (en) * 1950-03-30 1952-07-29 Westinghouse Electric Corp Ionization vacuum gauge
US2625586A (en) * 1950-04-14 1953-01-13 Bell Telephone Labor Inc Apparatus for measuring gas pressures
US2636146A (en) * 1950-05-26 1953-04-21 Univ California Ion gauge
NL193415A (fr) * 1953-12-21
US2864998A (en) * 1957-07-08 1958-12-16 Gen Electric Pressure measuring arrangement for a vacuum circuit interrupter
US2997613A (en) * 1959-10-13 1961-08-22 Sylvania Electric Prod Electron test tube
US3317823A (en) * 1963-04-08 1967-05-02 United States Atomic Energy Commission Self-checking ionization chamber type radiation detector
US3441839A (en) * 1966-11-22 1969-04-29 Nat Res Corp Power supply for vacuum pump with auxiliary pressure measurement function

Also Published As

Publication number Publication date
US1334143A (en) 1920-03-16

Similar Documents

Publication Publication Date Title
FR517883A (fr) Stylographe à réservoir
CH77623A (de) Röhre
FR491443A (fr) Manomètre
FR501532A (fr) Marteau à ressort
FR494923A (fr) Articulateur à griffes-vis
CH81343A (fr) Mandrino perfezionato per macchine utensili
FR505762A (fr) Marteau-pilon à pression atmosphérique
FR502766A (fr) Compresseur
FR518619A (fr) Tube rÖntgen
FR492688A (fr) Frein à air
FR500868A (fr) Perfectionnements aux pompes à air
CH80749A (de) Respirator
DK23222C (da) Differensmanometer.
CH81058A (de) Nasenansatz
CH81091A (de) Röhrenanschluß
FR524909A (fr) Le colordisk
FR492477A (fr) Perfectionnement au mécanisme chasse-navette de métiers à tisser
FR526884A (fr) Perfectionnements à la construction des magnétos
FR532642A (fr) Hydravion à flotteur en porte-à-faux
FR496480A (fr) Grenade à main
FR490573A (fr) Agrafe
CH81531A (de) Desinfektionsmittel
CH78123A (de) Gehäuse
CH80037A (fr) Frein à air comprimé
FR488634A (fr) Allumoir à ferro-cérium