Fluid handling – Processes – Cleaning – repairing – or assembling
Patent
1988-04-05
1989-06-20
Walton, George L.
Fluid handling
Processes
Cleaning, repairing, or assembling
251 5, 251 611, F16K 710, F16K 4300
Patent
active
048401919
ABSTRACT:
An inflatable valve member includes a valve body received in a fluid line and defining a generally annular flow passage therewith. A flexible member disposed on the valve body is selectively inflated to open and close the flow passage. A filter is interposed between the valve body and flexible member. The filter prevents injection of the flexible member in a pre-cured state into an internal passage provided in the valve body. A bonding material is provided between the flexible member and the valve body to provide a secure mechanical engagement therebetween as the material is cured to a cross-linked polymer state. The bonding of the flexible member also eliminates crevices in the final assembled valve member. The fluid line also includes a linear portion at the outlet to facilitate drainage of the valve.
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Gausman Theodore J.
Scheffel Gary W.
Nupro Company
Walton George L.
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