Compressed air foam discharging apparatus

Details Compressed air foam discharging apparatus Compressed air foam discharging apparatus

1991-07-19

1992-03-17

Bertsch, Richard A.

Pumps

Motor driven

Internal-combustion engine

417201, 4171991, 169 14, F04B 3506

Patent

active

050963899

ABSTRACT:
The invented foam discharging apparatus includes an engine that uses a drive shaft to drive two fluid pumps. One of the two fluid pumps is directly engaged by the drive shaft. In the preferred embodiment of the invention, one of the fluid pumps is a centrifugal fluid pump that pumps water from a reservoir. The other fluid pump is a rotary screw air compressor.

REFERENCES:
patent: 2135721 (1938-11-01), Landenberger
patent: 2198585 (1940-04-01), Urguhart et al.
patent: 2361146 (1944-10-01), Montelius
patent: 3150594 (1964-09-01), Coberly et al.
patent: 4279578 (1981-07-01), Kim et al.
patent: 4743430 (1988-05-01), Spielholz
patent: 4786239 (1988-11-01), Eberhardt
patent: 4974556 (1990-12-01), Royce

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