Pumps for hand-held dispensers
AssigneeAerosol Inventions and Development S.A. AID SA
InventorAndre DeBard
Life of this patent
Estimating the term…
Abstract
A manually-operated, reciprocating pump for liquids comprising a pump body with a slidable piston, the piston being manually moved in one direction by a manually-operated actuating member and is resiliently-returned by a spring; the delivery stroke of the piston is disengaged from the actuating member during the return stroke so that the discharge is independent of the movement of the actuating member.
Claims9
A manually-operated reciprocating pump for liquids comprising a pump body with a piston slidable therein, resilient return means operatively connected to the piston for moving the piston in one direction, an actuating member connected to the piston through resiliently-releasable means during movement of said piston in the said one direction, and releasing means mounted on the pump body engagable by said resiliently-releasable means adjacent the end of the travel of the actuating member in the said one direction, to release the resiliently-releasable means, thereby disengaging the piston from the actuating member, and allowing the return of the piston under the action of said resilient-return means.
Dependencies are inferred from the claim text.