Air breezing pump

Details Air breezing pump Air breezing pump

1992-07-08

1993-09-21

Bertsch, Richard A.

Pumps

Motor driven

Electric or magnetic motor

417417, 381199, 381201, 310 15, F04B 3504

Patent

active

052463532

ABSTRACT:
An air breezing pump designed to supply air for biasing the vibrator of a speaker by providing a conventional speaker with an air inlet valve and an air outlet valve on its vibrating medium, and thereby excluding existing ducts from the enclosure of the speaker assembly.

REFERENCES:
patent: 4427906 (1984-01-01), Kainuma et al.
patent: 4547632 (1985-10-01), Bryson
patent: 4595801 (1986-06-01), Coffin

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