Manual air pump for two wheel tires

Details Manual air pump for two wheel tires Manual air pump for two wheel tires

1988-12-16

1990-06-12

Koczo, Michael

Pumps

Expansible chamber type

Having pumping chamber pressure responsive distributor

417478, 137 38, F04B 3300

Patent

active

049328492

ABSTRACT:
A manual air pump for two wheel tires comprises means forming a pressure chamber, a head part, a first connecting element for connecting with a bicycle valve and a second connecting element for connecting with an air pin of a motorcycle valve, the head having a connecting passage which connects the first connecting element with the second connecting element and communicates with the pressure chamber, and a closing body arranged movably in the connecting passage so that under the action of its own weight it can close the first connecting element or the second connecting element in one of two different positions of the head.

REFERENCES:
patent: 247142 (1881-09-01), Woods
patent: 2933095 (1960-04-01), Rumsey
patent: 4202495 (1980-05-01), Kranzel
patent: 4417861 (1983-11-01), Tolbert
Bicycling Magazine, Feb. 1989, pp. 145-147, by Jim Langley.

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