Air pump valve head for both schrader and presta valves

Details Air pump valve head for both schrader and presta valves Air pump valve head for both schrader and presta valves

1999-08-18

2000-06-20

Rivell, John

Fluid handling

Inflatable article

137231, 2511498, F16K 1520, F16K 5100

Patent

active

060765445

ABSTRACT:
The valve head of the present invention is designed for engaging both a Schrader and a Presta valve. It includes a housing having generally cylindrical sidewalls and a base wall. A collet is disposed within the housing. The collet has generally cylindrical sidewalls and a plurality of upwardly extending collet fingers. A generally cylindrical gasket members is disposed within the collet. The gasket is composed of a resilient material and has a valve insertion bore formed centrally therethrough. A camming lever is operably engaged to the collet and functions to pull the collet downwardly into the housing. The downward movement of the collet causes the collet fingers to move inwardly, thereby creating an inwardly directed force upon the resilient gasket such that the diameter of the gasket bore is reduced. When a Schrader valve is disposed within the gasket bore, the downward movement of the collet causes the Schrader valve to move downwardly in frictional engagement with the gasket, and the downward motion of the Schrader valve upon a stationary actuator member projecting from the base of the housing opens the Schrader valve. A Presta valve disposed within the gasket bore is not drawn downwardly thus avoid damage to the Presta valve.

REFERENCES:
patent: 1784822 (1930-12-01), Crowley
patent: 3329180 (1967-07-01), Van Brocklin
patent: 3926205 (1975-12-01), Gourlet
patent: 5379796 (1995-01-01), Wang
patent: 5666990 (1997-09-01), Wu
patent: 5749392 (1998-05-01), Glotin
patent: 5902097 (1999-05-01), Wu
patent: 5960815 (1999-10-01), Wang
"Rapiseal Leak Proof Connection", Barberi Bicycle Accessories, Nov. 20, 1995.

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