Elastomeric air pump
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United States of America Patent
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-
Dec 24, 1991
Grant Date -
N/A
app pub date -
Apr 13, 1990
filing date -
Apr 13, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An air pump formed of a resilient elastomeric material bondable about the perimeter of an opening provided in a plastic inflatable bladder, has a self-supporting spherical dome portion and a generally planar base portion. An inlet flapper type valve is integrally formed in a wall of the dome and an outlet check valve extends through an opening in the base for supplying air into the plastic bladder accomplished by alternately compressing and releasing the dome. The underside of the base includes projections disposed about the outlet valve to hold the bladder wall clear of the outlet valve. The base may also include a tail portion which extends laterally of the dome with an exhaust valve affixed thereto for deflating the bladder.
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