Pumps – Expansible chamber type – Having pumping chamber pressure responsive distributor
Patent
1988-04-28
1989-06-27
Freeh, William L.
Pumps
Expansible chamber type
Having pumping chamber pressure responsive distributor
417413, 417DIG1, 604153, F04B 2102, F04B 3504, F04B 4304
Patent
active
048424986
ABSTRACT:
A diaphragm compressor composed of non-metallic parts capable of being manufactured and assembled so inexpensively as to be suitable for one-time use. Conventional expensive fasteners such as screws are eliminated and assembled parts are joined by press fitting, sonic welding or similar inexpensive functionally similar means.
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Bramstedt David
Rozek Roy J.
Freeh William L.
Roche David I.
Staples James G.
Thomas Industries Inc.
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