Aquarium air pump

Details Aquarium air pump Aquarium air pump

1990-08-17

1991-10-01

Nilson, Robert G.

Pumps

Motor driven

Resiliently mounted pump or motor

417413, F04B 4504

Patent

active

050529048

ABSTRACT:
An aquarium air pump includes an electromagnetic motor-operated pump unit positioned in the housing of the pump and including two vibrating arms energized by the motor and each carrying a pump diaphragm forming with a closure member of the pump unit casing a pump chamber. Each vibrating arm is positioned on the casing to be pivoted to an operative position to close the respective closure member and a non-operative position in which the arm can be removed from the casing and interchanged. The pump housing includes a bottom part and a top part connectable to each other and sealed in the connected position by a peripheral seal. Cushioning cups support the pump unit in the pump housing to absorb vibrations.

REFERENCES:
patent: 3289917 (1966-12-01), Buchanan
patent: 3671151 (1972-06-01), Duke
patent: 4154559 (1979-05-01), Enomoto
patent: 4170439 (1979-10-01), Hase
patent: 4610608 (1986-09-01), Grant

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