Pumps – Motor driven – Fluid motor
Reexamination Certificate
2008-07-15
2008-07-15
Isabella, David J. (Department: 4156)
Pumps
Motor driven
Fluid motor
C092S048000
Reexamination Certificate
active
11313266
ABSTRACT:
An air driven diaphragm pump includes two diaphragms affixed to a common shaft. The shaft extends through an air valve providing reciprocating pressurized air to the diaphragms through associated air chambers. A pump chamber with intake and exhaust valves is associated with one of the two diaphragms while a further air chamber replaces a pump chamber and is associated with the other of the diaphragms. A passage extends through the shaft and is in communication with the air chamber adjacent to the pump chamber and with the further air chamber converted from the pump chamber.
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ALMATEC Design Drawing FP/FD 50 (M 1:1)—Stand Dec. 17, 1998.
ALMATEC AH Design Crawing.
Connolly Bove & Lodge & Hutz LLP
Isabella David J.
Italiano Rocco
Wilden Pump and Engineering LLC
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