Pumps – Motor driven – Fluid motor
Patent
1997-04-10
1999-01-19
Thorpe, Timothy
Pumps
Motor driven
Fluid motor
91286, 91311, 91312, 91314, 417395, F04B 3500
Patent
active
058607943
ABSTRACT:
An air operated double diaphragm pump is provided with an air valve assembly which allows the valve cup to move in a rectangular pattern.
REFERENCES:
patent: 2748752 (1956-06-01), Baghuis
Burt Graig D.
Feitel Ann C.
Fisher Joel T.
Hand Kent P.
Johnson Harold D.
Farrow Douglas B.
Gartenberg Ehud
Graco Inc
Thorpe Timothy
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