Rotary kinetic fluid motors or pumps – With sound or vibratory wave absorbing or preventing means...
Patent
1984-02-17
1986-04-15
Look, Edward K.
Rotary kinetic fluid motors or pumps
With sound or vibratory wave absorbing or preventing means...
415183, 415219R, 181268, 181238, 181214, 417312, F04D 2966, F01N 704
Patent
active
045824657
ABSTRACT:
A blower for an air spray bath massaging apparatus, which blower is operated by an electric motor and is enclosed in a housing having a suction air fitting and a compressed air fitting. To effectively reduce the suction noise of the blower, the suction air fitting is provided with a closure wall having a plurality of suction sleeves with suction inlets. The suction air current is divided into several smaller air currents by which considerably less suction noise is generated.
REFERENCES:
patent: 2942683 (1960-06-01), Moyer
patent: 3410218 (1968-11-01), Fivel
patent: 3695781 (1972-10-01), LaBarber
patent: 3710889 (1973-01-01), Lamy
patent: 3829250 (1974-08-01), Samson, Jr.
patent: 3932057 (1976-01-01), Wadensten
patent: 3994364 (1976-11-01), Nicoll
patent: 4244440 (1981-01-01), Matta et al.
Li H. Edward
Look Edward K.
Metronic Electronic GmbH
Speckman Thomas W.
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