Pump actuator with plastic spring
AssigneeRobert N. Carow
InventorRobert N. Carow
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Abstract
A pump actuator assembly for mounting on a disposable plastic container having a neck and a cap mounted on the neck. A spring trapped between the pump actuator and the cap. The spring formed from a tubular sleeve of elastic plastic material with longitudinally extending slits formed in the tubular sleeve. In one embodiment, the sleeve is independent of the cap and sleeve. In another embodiment, the sleeve is formed integrally with the cap. In a third embodiment, the sleeve is formed integrally with the pump actuator. In a fourth embodiment, the sleeve is hooked to the cap.
Claims7
A pump actuator for mounting on a container having a neck, said pump actuator having a discharge spout located above said neck, a pump having an inlet located in said container, a cap mounted on said neck, said pump having an outlet communicating with said pump actuator,
- a spring trapped between said cap and said discharge spout of said pump actuator, said spring comprising a tubular sleeve of elastic material having top and bottom edges, and
- a plurality of longitudinally extending slits formed in said tubular sleeve with said slits terminating short of said top and bottom edges of said tubular sleeve.
A compressible tubular sleeve with spring-like qualities having an elongated cylindrical wall with top and bottom edges, longitudinally extending slits formed in said cylindrical wall of said tubular sleeve with said slits terminating short of said top and bottom edges of said cylindrical wall, and circular notches formed at the top and bottom ends of said slits.
A pump actuator for mounting on a container having a neck, said pump actuator having a discharge spout located above said neck, a cap mounted on said neck, said pump having an outlet communicating with said pump actuator,
- a spring positioned between said cap and said discharge spout of said pump actuator, said spring comprising a tubular sleeve of elastic material having top and bottom edges,
- a plurality of longitudinally extending slits formed in said tubular sleeve with said slits terminating short of said top and bottom edges of said tubular sleeve,
- an inwardly opening groove formed in an inner wall of said tubular sleeve above said bottom edge thereof and below said slits, and
- upwardly extending hooks formed on said cap, said hooks formed to be received in said groove to secure said spring to said cap.
Dependencies are inferred from the claim text.