Multistage vacuum pump with interstage solid material collector

Details Multistage vacuum pump with interstage solid material collector Multistage vacuum pump with interstage solid material collector

1991-09-12

1992-12-22

Smith, Leonard E.

Rotary expansible chamber devices

Multistage

Interengaging rotary members

417313, 418 46, 418181, F04C 2300

Patent

active

051730413

ABSTRACT:
A multistage vacuum pump including a plural set of two lobe type vacuum pumps arranged on a common shaft for rotors and in a common casing. The adjacent pumps are connected in series with each other through a communicating passage formed in a pump casing. A solid material collector having a cooling device is provided in the communicating passage so that it is dismountable from the pump casing. A solid component in a compressed gas is forcibly produced by and adhered to the solid material collector. Thus, it is not necessary to disassemble the pump casing for cleaning the same.

REFERENCES:
patent: 1769153 (1930-07-01), Meyer
patent: 2489887 (1949-11-01), Houghton
patent: 2849173 (1958-08-01), Surdy
patent: 4066386 (1978-01-01), Johnson et al.
patent: 4087197 (1978-05-01), Haugen
patent: 4789314 (1988-12-01), Higuchi et al.
patent: 4943215 (1990-07-01), Berges
Patent Abstracts of Japan, vol. 12, No. 39, Feb. 1988 & JP-A-62 189 388 Aug. 19, 1987.

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