Head of an air pump for inflating pneumatic tires having a motor

Details Head of an air pump for inflating pneumatic tires having a motor Head of an air pump for inflating pneumatic tires having a motor

1981-06-16

1984-01-17

Freeh, William L .

Fluid handling

Inflatable article

137846, 2511497, 417566, F16K 1520

Patent

active

044259344

ABSTRACT:
A head of an air pump for inflating pneumatic tires having a motorcycle valve comprises a pot-shaped housing defining a pressure space. The housing is arranged to be connected to an air pump defining a piston space so that the pressure space and the piston space are in communication with one another. A projection is formed integral with the pot-shaped housing and defines a cavity appliable upon a motorcycle valve including a valve body and a spring-biased check valve. A partition is provided between the cavity and the pressure space, the cavity of the projection communicating by at least one air duct passing through the partition with the pressure space. A check valve is provided in the cavity of the projection and is defined by a seal arranged around a lifting pin projecting from the partition into the cavity and leaving free between itself and the lifting pin a connecting duct. This seal forms with its free end face a sealing surface facially engaging the motorcycle valve body upon lifting of the spring-biased check valve of the motorcycle valve body accommodated by the projection by the lifting pin and engages with a sealing lip at the connecting duct side the lifting pin in shutting off the air duct to the pressure space.

REFERENCES:
patent: 1442933 (1923-01-01), Firpo
patent: 2424595 (1947-07-01), Warren
patent: 2672101 (1954-03-01), Shields
patent: 2887961 (1959-05-01), Hawley
patent: 2986098 (1961-05-01), Trout
patent: 3822720 (1974-07-01), Souza
patent: 3926205 (1975-12-01), Gourlet
patent: 4091999 (1978-05-01), Voos

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