Air pump of simple structure

Details Air pump of simple structure Air pump of simple structure

1999-06-11

2000-09-19

Freay, Charles G.

Pumps

Expansible chamber type

Valve in collapsible wall pumping member

417 53, 417478, 92 89, F04B 4302

Patent

active

061202649

ABSTRACT:
An air pump includes a first sheet, a second sheet, an inflation valve and a check valve. The second sheet is directly connected to the first sheet so as to form a chamber. The inflation valve is provided on the chamber to lead air into the chamber when the chamber is extended. The check valve is also provided on the chamber to discharge the air in the chamber when the chamber is compressed. The air pump can be built in an inflatable product.

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