GB1022911A - Improvements in or relating to vacuum pumps - Google Patents

Improvements in or relating to vacuum pumps

Info

Publication number
GB1022911A
GB1022911A GB308963A GB308963A GB1022911A GB 1022911 A GB1022911 A GB 1022911A GB 308963 A GB308963 A GB 308963A GB 308963 A GB308963 A GB 308963A GB 1022911 A GB1022911 A GB 1022911A
Authority
GB
United Kingdom
Prior art keywords
bars
high vacuum
vacuum compartment
housing
compartment
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
GB308963A
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.)
Ortech Corp
Original Assignee
Ortech 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 Ortech Corp filed Critical Ortech Corp
Publication of GB1022911A publication Critical patent/GB1022911A/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
    • 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)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

1,022,911. High vacuum pumps. ONTARIO RESEARCH FOUNDATION. Jan. 24, 1963 [Jan. 25, 1962], No. 3089/63. Headings FIE and F1N. A vacuum pump comprises a housing 11 Fig. 1, having a fore vacuum compartment 13, a high vacuum compartment 12 and laterally spaced sets of first and second bars 16, 17, positioned between the compartments, the first bars 16 being positioned with surfaces thereof adjacent the high vacuum compartment, the second bars 17 being shielded from the high vacuum compartment by the first bars and being positioned closely adjacent the first bars which are maintained at a lower temperature than the second bars. A plurality of groups of layers of bars 14, 15 may be provided in which the size of gaps B and distance A decrease continuously from the high vacuum compartment end of the housing. In another embodiment first bars 16, 16a Fig. 7 (not shown) project inwardly from housing 11 which has water-cooling channels 29 and second bars 17, 17a project inwardly from support 21 which contains an electrical heater 28. In both embodiments molecules diffusing from the high vacuum compartments are deflected in a zig-zag path towards the fore vacuum compartment because they move away from a hot surface with greater velocity than from a cold surface.
GB308963A 1962-01-25 1963-01-24 Improvements in or relating to vacuum pumps Expired GB1022911A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESC030887 1962-01-25

Publications (1)

Publication Number Publication Date
GB1022911A true GB1022911A (en) 1966-03-16

Family

ID=7431901

Family Applications (1)

Application Number Title Priority Date Filing Date
GB308963A Expired GB1022911A (en) 1962-01-25 1963-01-24 Improvements in or relating to vacuum pumps

Country Status (2)

Country Link
DE (1) DE1428303A1 (en)
GB (1) GB1022911A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000858A1 (en) * 1980-09-02 1982-03-18 B Frostenson A method and apparatus for compressing a gaseous medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000858A1 (en) * 1980-09-02 1982-03-18 B Frostenson A method and apparatus for compressing a gaseous medium

Also Published As

Publication number Publication date
DE1428303A1 (en) 1969-09-18

Similar Documents

Publication Publication Date Title
ES210683U (en) New bakery oven. (Machine-translation by Google Translate, not legally binding)
GB1022911A (en) Improvements in or relating to vacuum pumps
GB1018623A (en) Improvements in or relating to electronic assemblies
GB1491255A (en) Treating slices of material with a gas
GB1336803A (en) Household oven
GB1128684A (en) Cooling arrangement for glass forming equipment
GB1105135A (en) Improvements relating to electrically energised hot plate units
ES367426A1 (en) Cooling apparatus for continuous casting plants
ATE26520T1 (en) ASSEMBLY CARRIER.
GB1023757A (en) Improvements in or relating to vacuum diffusion pumps
GB1241760A (en) Improvements in electric heat storage stoves
GB1124033A (en) Fluid bearing
GB1108679A (en) Magnetohydrodynamic (mhd) device
GB1089126A (en) Heat transfer device
ES296672A1 (en) Bearing assembly
GB975408A (en) Improvements in apparatus for cooling or heating metal strip
ES8305176A1 (en) Industrial modular microwave oven.
GB1108892A (en) Improvements in or relating to blower-type electric heater
JPS5687726A (en) High-frequency heating apparatus
SU107473A1 (en) Device for cooling the turbogenerator rotor
GB1063621A (en) Magneto-hydro-dynamic generator employing a fluid at a non-uniform temperature
GB1000052A (en) Improvements in or relating to magneto-hydrodynamic generators
GB1181590A (en) Improvements in or relating to Shelving Assemblies.
GB935464A (en) Improvements in or relating to heat transfer arrangements
GB1172371A (en) Improvements in or relating to Magnetohydrodynamic apparatus