Fluid handling – With cleaner – lubrication added to fluid or liquid sealing... – Cleaning or steam sterilizing
Reexamination Certificate
2006-10-31
2006-10-31
Look, Edward K. (Department: 3751)
Fluid handling
With cleaner, lubrication added to fluid or liquid sealing...
Cleaning or steam sterilizing
C251S129080
Reexamination Certificate
active
07128084
ABSTRACT:
The present invention provides a method and apparatus for a self-cleaning valve assembly. The valve is adapted to cycle and thereby clean the valve assembly in response to one or more predefined parameters which are programmed into a programmable controller. The valve is additionally configured to cycle according to one or more of several different methods which have been shown to efficiently clean the valve assembly. In this manner, the valve assembly is automatically cleaned improving the efficiency thereof and eliminating stuck valve warranty returns.
REFERENCES:
patent: 5971889 (1999-10-01), Ohashi et al.
patent: 6170506 (2001-01-01), Butwin et al.
patent: 6718921 (2004-04-01), Grewal et al.
Long Charles F.
Mc Cauley Phillip F.
Mundy Scott E.
DeVries Christopher
Fristoe Jr. John K.
General Motors Corporation
Look Edward K.
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