US Patent Application No: 2009/0092,505

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DUAL DIAPHRAGM PUMP ASSEMBLY FOR A SANITATION SYSTEM

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ALSO PUBLISHED AS: 8529223
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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A pump assembly includes a housing defining a working chamber, a water pump chamber and a waste pump chamber. A first diaphragm separates the water pump chamber and the working chamber. A second diaphragm separates the waste pump chamber and the working chamber. A common driver member interconnects the first diaphragm and the second diaphragm. Movement of the driven member to a first position creates a positive pressure in the water pump chamber and a negative pressure in the waste pump chamber. Movement of the driven member to a second position creates a negative pressure in the water pump chamber and a positive pressure in the waste pump chamber.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
THETFORD CORPORATIONANN ARBOR, MI107

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
COHOON, William R Canton, MI 4 3
Grech, George - 28 96
Meyer, Steven A - 2 0

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