DE2900963A1 - Diffusionspumpe fuer leckdetektoren - Google Patents

Diffusionspumpe fuer leckdetektoren

Info

Publication number
DE2900963A1
DE2900963A1 DE19792900963 DE2900963A DE2900963A1 DE 2900963 A1 DE2900963 A1 DE 2900963A1 DE 19792900963 DE19792900963 DE 19792900963 DE 2900963 A DE2900963 A DE 2900963A DE 2900963 A1 DE2900963 A1 DE 2900963A1
Authority
DE
Germany
Prior art keywords
sump
pump
neck
foreline
diffusion
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.)
Withdrawn
Application number
DE19792900963
Other languages
German (de)
English (en)
Inventor
Arthur Arvid Landfors
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.)
Varian Medical Systems Inc
Original Assignee
Varian Associates Inc
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 Varian Associates Inc filed Critical Varian Associates Inc
Publication of DE2900963A1 publication Critical patent/DE2900963A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F9/00—Diffusion pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Examining Or Testing Airtightness (AREA)
DE19792900963 1978-01-17 1979-01-11 Diffusionspumpe fuer leckdetektoren Withdrawn DE2900963A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/870,234 US4373868A (en) 1976-07-06 1978-01-17 Diffusion pump for leak detector

Publications (1)

Publication Number Publication Date
DE2900963A1 true DE2900963A1 (de) 1979-07-19

Family

ID=25355001

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792900963 Withdrawn DE2900963A1 (de) 1978-01-17 1979-01-11 Diffusionspumpe fuer leckdetektoren

Country Status (7)

Country Link
US (1) US4373868A (US20020128544A1-20020912-P00008.png)
JP (1) JPS54116716A (US20020128544A1-20020912-P00008.png)
CH (1) CH641530A5 (US20020128544A1-20020912-P00008.png)
DE (1) DE2900963A1 (US20020128544A1-20020912-P00008.png)
FR (1) FR2414650A1 (US20020128544A1-20020912-P00008.png)
GB (2) GB2082255B (US20020128544A1-20020912-P00008.png)
IT (1) IT1110935B (US20020128544A1-20020912-P00008.png)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5640614A (en) * 1979-09-13 1981-04-16 Nippon Chemiphar Co Ltd Novel type remedy for peptic ulcer
US4820548A (en) * 1984-06-07 1989-04-11 Enthone, Incorporated Three step process for treating plastics with alkaline permanganate solutions
US4845360A (en) * 1987-12-10 1989-07-04 Varian Associates, Inc. Counterflow leak detector with high and low sensitivity operating modes
US5137429A (en) * 1991-04-15 1992-08-11 Spectrameasure Inc. Diffusion pump
GB9603434D0 (en) * 1996-02-19 1996-04-17 Boc Group Plc Improvements in diffusion pumps
RU2106541C1 (ru) * 1997-02-10 1998-03-10 Владимир Омарович Токарев Вакуумный пароструйный насос
CN109441846B (zh) * 2018-10-23 2020-09-08 武汉船用机械有限责任公司 一种潜液泵密封监测装置

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1791105A (en) * 1925-08-10 1931-02-03 Bbc Brown Boveri & Cie Multistage high-vacuum diffusion pump
US2112037A (en) * 1937-03-27 1938-03-22 Rca Corp Vacuum diffusion pump
US2150676A (en) * 1937-05-11 1939-03-14 Distillation Products Inc High vacuum
US2397591A (en) * 1943-05-29 1946-04-02 Eitel Mccullough Inc Vacuum pump
US2437849A (en) * 1944-11-08 1948-03-16 Nasa Pump
US2438387A (en) * 1945-09-18 1948-03-23 Nasa Pump
US2447636A (en) * 1946-07-09 1948-08-24 Westinghouse Electric Corp Pump
GB686659A (en) * 1951-11-17 1953-01-28 Nat Res Corp Improvements in or relating to high-vacuum oil diffusion pumps
US2709034A (en) * 1953-03-02 1955-05-24 Nat Res Corp High-vacuum device
FR1161993A (fr) * 1955-12-08 1958-09-08 Edwards High Vacuum Ltd Pompes à vide à vapeur
GB809379A (en) * 1956-08-02 1959-02-25 Cons Electrodynamics Corp Improvements in or relating to vapour-operated vacuum pumps
FR1382330A (fr) * 1963-11-08 1964-12-18 Cie Ind Francaise Tubes Elect Perfectionnement aux pompes à diffusion à vapeur d'huile
FR1471414A (fr) * 1966-03-10 1967-03-03 Nat Res Corp Pompe à diffusion
JPS4520344Y1 (US20020128544A1-20020912-P00008.png) * 1967-01-16 1970-08-15
US3690151A (en) * 1968-07-25 1972-09-12 Norton Co Leak detector
GB1313138A (en) * 1969-05-27 1973-04-11 Edwards High Vacuum Int Ltd Vapour vacuum pumps
JPS5415436B2 (US20020128544A1-20020912-P00008.png) * 1974-06-13 1979-06-14

Also Published As

Publication number Publication date
IT1110935B (it) 1986-01-13
IT7919358A0 (it) 1979-01-17
JPS54116716A (en) 1979-09-11
CH641530A5 (de) 1984-02-29
FR2414650A1 (fr) 1979-08-10
GB2012365B (en) 1982-09-02
GB2082255A (en) 1982-03-03
GB2082255B (en) 1982-12-08
FR2414650B1 (US20020128544A1-20020912-P00008.png) 1983-09-30
GB2012365A (en) 1979-07-25
US4373868A (en) 1983-02-15

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee