GB1330150A - Impeller assemblies for high vacuum pumps - Google Patents

Impeller assemblies for high vacuum pumps

Info

Publication number
GB1330150A
GB1330150A GB4986270A GB4986270A GB1330150A GB 1330150 A GB1330150 A GB 1330150A GB 4986270 A GB4986270 A GB 4986270A GB 4986270 A GB4986270 A GB 4986270A GB 1330150 A GB1330150 A GB 1330150A
Authority
GB
United Kingdom
Prior art keywords
elements
series
blades
assembly
oct
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
GB4986270A
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.)
Sargent Welch Scientific Co
Original Assignee
Sargent Welch Scientific Co
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 Sargent Welch Scientific Co filed Critical Sargent Welch Scientific Co
Publication of GB1330150A publication Critical patent/GB1330150A/en
Expired 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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/02—Multi-stage pumps
    • F04D19/04—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps
    • F04D19/042—Turbomolecular vacuum pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Positive Displacement Air Blowers (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
GB4986270A 1969-10-27 1970-10-21 Impeller assemblies for high vacuum pumps Expired GB1330150A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86996869A 1969-10-27 1969-10-27

Publications (1)

Publication Number Publication Date
GB1330150A true GB1330150A (en) 1973-09-12

Family

ID=25354525

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4986270A Expired GB1330150A (en) 1969-10-27 1970-10-21 Impeller assemblies for high vacuum pumps

Country Status (9)

Country Link
US (1) US3659958A (enrdf_load_stackoverflow)
JP (1) JPS5026770B1 (enrdf_load_stackoverflow)
BE (1) BE757355A (enrdf_load_stackoverflow)
CA (1) CA922676A (enrdf_load_stackoverflow)
CH (1) CH535383A (enrdf_load_stackoverflow)
DE (1) DE2046692A1 (enrdf_load_stackoverflow)
FR (1) FR2066533A5 (enrdf_load_stackoverflow)
GB (1) GB1330150A (enrdf_load_stackoverflow)
NL (1) NL7015234A (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2554995A1 (de) * 1975-12-06 1977-06-16 Pfeiffer Vakuumtechnik Turbomolekularpumpe
JPS5482571U (enrdf_load_stackoverflow) * 1977-11-24 1979-06-12
GB2498816A (en) * 2012-01-27 2013-07-31 Edwards Ltd Vacuum pump
DE102013100853A1 (de) * 2013-01-29 2014-07-31 Pfeiffer Vacuum Gmbh Verfahren zum Beschichten und/oder Lackieren von Magnetringen eines Rotor-Magnetlagers, Rotor-Magnetlager sowie Vakuumpumpe
CN105526160A (zh) 2014-10-16 2016-04-27 德昌电机(深圳)有限公司 齿轮泵

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1551402A (en) * 1925-08-25 Botob fob elastic-pi
US843237A (en) * 1906-03-31 1907-02-05 Frank D Shepherd Steam-turbine.
DE287964C (enrdf_load_stackoverflow) * 1913-05-31
US2356605A (en) * 1940-01-08 1944-08-22 Meininghaus Ulrich Turbine rotor
US2317092A (en) * 1941-08-02 1943-04-20 Allis Chalmers Mfg Co Welded spindle construction
US2461242A (en) * 1944-08-23 1949-02-08 United Aircraft Corp Rotor construction for turbines
US2440933A (en) * 1945-05-11 1948-05-04 Elliott Co Turbine rotor
US2637521A (en) * 1949-03-01 1953-05-05 Elliott Co Gas turbine rotor and method of welding rotor disks together
US3070348A (en) * 1960-07-25 1962-12-25 Gen Motors Corp Composite rotor
FR1304689A (fr) * 1961-08-04 1962-09-28 Snecma Pompe à vide turbomoléculaire perfectionnée
US3399827A (en) * 1967-05-19 1968-09-03 Everett H. Schwartzman Vacuum pump system

Also Published As

Publication number Publication date
NL7015234A (enrdf_load_stackoverflow) 1971-04-29
CH535383A (de) 1973-03-31
US3659958A (en) 1972-05-02
FR2066533A5 (enrdf_load_stackoverflow) 1971-08-06
JPS5026770B1 (enrdf_load_stackoverflow) 1975-09-03
BE757355A (fr) 1971-03-16
DE2046692A1 (de) 1971-05-06
CA922676A (en) 1973-03-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee