Composite elastomer-tipped tubular metallic device for armature and needle valve applications
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United States of America Patent
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-
Nov 13, 1990
Grant Date -
N/A
app pub date -
Dec 4, 1987
filing date -
Dec 4, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A composite elastomer-tipped tubular metallic device for armature and check valve applications has a hollow tubular metal body and a generally spherical elastomer ball fitted into an end of the body so as to project outwardly beyond the body end. Also, the body of the device has a seat structure provided internally at the end thereof which is adapted to capture and retain the ball in the body end. In several embodiments of the device, the seat structure is defined by a pair of axially spaced annular ribs formed internally in the body at the end thereof, with the ribs projecting radially inwardly toward a central axis of the tubular body. In one embodiment, one of the ribs may be formed as a split ring received in an annular groove in an interior surface of the hollow body.
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