Pumps – Motor driven – Electric or magnetic motor
Reexamination Certificate
2008-01-29
2008-01-29
Freay, Charles G (Department: 3746)
Pumps
Motor driven
Electric or magnetic motor
C417S480000
Reexamination Certificate
active
11024943
ABSTRACT:
A pump comprises a diaphragm assembly which includes a first diaphragm (22) having a first diaphragm edge (28) and a second diaphragm (24) having a second diaphragm edge (30). The first diaphragm edge (28) and the second diaphragm edge (30) are bonded together so that a bellows chamber (26) is formed between the first diaphragm (22) and the second diaphragm (24). At least one and possibly both of the first diaphragm (22) and the second diaphragm (24) is a piezoelectric diaphragm which displaces in accordance with application of an electrical signal. A driver applies the electrical signal to whichever of the first diaphragm (22) and the second diaphragm (24) is the piezoelectric diaphragm. The first diaphragm and the second diaphragm bow outwardly together and shrink in diameter during a suction stroke but flatten out and increase in diameter during a pump stroke.
REFERENCES:
patent: 4773218 (1988-09-01), Wakita et al.
patent: 4927084 (1990-05-01), Brandner et al.
patent: 5338164 (1994-08-01), Sutton et al.
patent: 5759015 (1998-06-01), Van Lintel et al.
patent: 5811911 (1998-09-01), Jänker et al.
patent: 6042345 (2000-03-01), Bishop et al.
patent: 6071088 (2000-06-01), Bishop et al.
patent: 6074178 (2000-06-01), Bishop et al.
patent: 6120264 (2000-09-01), Wang
patent: 6751954 (2004-06-01), Bridger et al.
patent: 6761028 (2004-07-01), Takeuchi et al.
patent: 6811093 (2004-11-01), Rado
patent: 6869275 (2005-03-01), Dante et al.
patent: 2005/0258715 (2005-11-01), Schlabach
patent: 357199399 (1982-12-01), None
International Preliminary Report on Patentability mailed Jul. 12, 2007 in corresponding PCT application PCT/US2005/047355.
International Preliminary Report on Patentability mailed Jul. 12, 2007 in corresponding PCT application PCT/US2005/047356.
International Search Report and Written Opinion mailed May 8, 2007 in PCT application PCT/US06/13854.
Adaptivenergy, LLC.
Freay Charles G
Nixon & Vanderhye P.C.
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