Importance

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Abstract

An intake valve for use in a thermoplastic fluid pump for inflatable bladders in which the valve is composed of superposed elastomeric layers and one of which is energy sealed at the center thereof to an inner wall portion of the pump about an inlet opening through said layer. The inlet opening is axially aligned with a hole through said pump wall so that ambient air may upon an expansion stroke of the pump enter the valve through said inlet opening and hole in the pump wall. Thereafter when the pump is compressed, air within the pump chamber will seal the inlet opening and force said air into the bladder through a check valve provided therefor. Thereafter when the pump is released, air will again be drawn into the pump chamber through the intake valve.

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First Claim