Pumps – Motor driven – Fluid motor
Reexamination Certificate
2005-09-27
2005-09-27
Koczo, Jr., Michael (Department: 3746)
Pumps
Motor driven
Fluid motor
C604S153000
Reexamination Certificate
active
06948918
ABSTRACT:
The invention relates to membrane pumps for delivering liquids. More specifically, a pump is provided having a pump housing with a pump cavity formed between first and second wall portions thereof, and an pump membrane pump membrane having first and second membrane surfaces arranged within the pump cavity, whereby a pump chamber is provided between the first wall portion and the first membrane surface, and an actuation chamber is provided between the second wall and the second membrane surface. Inlet means comprising an inlet valve in fluid communication with the pump chamber, and outlet means comprising an outlet valve in fluid communication with the pump chamber are provided. The pump membrane has a maximum volume position, and a drained volume position in which the first membrane surface in a stretched state abuts the first wall. To drive the membrane, actuating means for periodically shifting the pump membrane between the maximum volume position and the drained volume position is provided, thereby, in a situation of use, providing a flow of fluid.
REFERENCES:
patent: 2740259 (1956-04-01), Westlund
patent: 2980032 (1961-04-01), Schneider et al.
patent: 3176712 (1965-04-01), Ramsden
patent: 4265600 (1981-05-01), Mandroian
patent: 4392791 (1983-07-01), Mandroian
patent: 5149413 (1992-09-01), Maget
patent: 5205819 (1993-04-01), Ross et al.
patent: 5249932 (1993-10-01), Van Bork
patent: 5520523 (1996-05-01), Yorita et al.
patent: 5725363 (1998-03-01), Bustgens et al.
patent: 5759015 (1998-06-01), Van Lintel et al.
patent: 2002/0123740 (2002-09-01), Flaherty et al.
patent: 26 24 129 (1977-03-01), None
patent: 1 177 802 (2002-02-01), None
patent: 98/01168 (1998-01-01), None
Van Lintel H.T.G. et al., Sensors And Actuators A Physical, (1988) vol. 15, pp. 153-167.
Maillefer, Didier et al., Debiotec SA, (2001) pp. 413-417.
Began, Esq. Marc A.
Bosk, Esq. Richard W.
Green, Esq. Reza
Koczo, Jr. Michael
Novo Nordisk A S
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