Air pump with a hidden extension tube

Details Air pump with a hidden extension tube Air pump with a hidden extension tube

1998-07-17

2000-01-25

Bennett, Henry

Pumps

Expansible chamber type

Including valve assembly, disassembly, or inspection...

417553, 417572, F04B 3900

Patent

active

060172010

ABSTRACT:
An air pump is provided with an outer tube, a piston sealingly and slidably movable in the outer tube, an operating rod securely engaged with the piston and slidably received within the outer tube, a plug securely inserted into one end of the outer tube and allowing the operating rod to be slidably extending therethrough and an extension tube extending out from the other end of the outer tube. The operating rod has a channel adapted to slidably receive the extension tube therein. Therefore, when the extension tube is not in use, the extension tube is able to be received within the channel of the operating rod and the extension tube is able to be drawn out from the operating rod when in use to inflate a inflatable product.

REFERENCES:
patent: 5338166 (1994-08-01), Schultz
patent: 5476372 (1995-12-01), Yang
patent: 5655890 (1997-08-01), Liao

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