Multiple connector for rotation vacuum pumps

Details Multiple connector for rotation vacuum pumps Multiple connector for rotation vacuum pumps

1989-07-14

1991-07-30

Smith, Leonard E.

Pumps

Motor driven

Pump and motor interconnected by endless flexible...

4174235, 4174236, 41742314, F04B 3500

Patent

active

050355856

ABSTRACT:
The invention refers to a multiple connection of rotation vacuum pumps having a common housing and drive motor. The vacuum pumps arranged in two rows. Each one of the vacuum pumps has a pump gear, and these gears, together with a drive gear, are arranged such that they form a single row with their teeth drivingly intermeshed. Preferably only inner parts of the pump are located in the housing.

REFERENCES:
patent: 912198 (1909-02-01), Stafford
patent: 1818643 (1931-08-01), Nieman
patent: 2185338 (1940-01-01), Hassler
patent: 2902886 (1959-09-01), Nacker
patent: 2905011 (1959-09-01), Armstrong et al.
patent: 3299685 (1967-01-01), Kocks et al.
patent: 3612729 (1971-10-01), Commarmot
patent: 4068984 (1978-01-01), Spindler
patent: 4408891 (1983-10-01), Schirk et al.

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