Inflatable valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 20, 1989
Grant Date -
N/A
app pub date -
Apr 5, 1988
filing date -
Apr 5, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
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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