Air pump apparatus with vibration and sound reducing housing mea

Details Air pump apparatus with vibration and sound reducing housing mea Air pump apparatus with vibration and sound reducing housing mea

1993-09-14

1995-04-18

Bertsch, Richard A.

Pumps

With muffler acting on pump fluid

417313, 417363, 181202, F04B 1904, H02K 524

Patent

active

054073308

ABSTRACT:
Portable, low noise air pump apparatus employing an inexpensive lightweight pump and motor unit, which pumps a pulsed noisy output into a plenum chamber inside a rubber impervious sub-housing which absorbs noise and vibration; and a sound deadening plastics tube which carries the compressed air from the plenum, via a sound absorbing chamber (surrounded by lightweight sound absorbing material which supports the sub-housing) and across an accommodation space to an outlet fitting from which a smooth low-noise compressed air output can be supplied.

REFERENCES:
patent: 4201523 (1980-05-01), Olofsson
patent: 4715787 (1987-12-01), Hung
patent: 4733750 (1988-03-01), Poirier et al.
patent: 5052894 (1991-10-01), Remington
patent: 5151018 (1992-09-01), Clendenin et al.

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