Aerifying device for whirlpool bath or tub

Details Aerifying device for whirlpool bath or tub Aerifying device for whirlpool bath or tub

1983-07-11

1985-05-21

Callaghan, Thomas F.

Pumps

Motor driven

Including means utilizing pump fluid for augmenting cooling,...

417424, F04B 1700

Patent

active

045183252

ABSTRACT:
An electric motor has an upright axial drive shaft carrying a blower at the bottom and a separate fan at the top. The blower supplies a strong flow of air for aerifying water contained in a whirlpool bath or tub and the fan supplies a secondary flow of air for cooling the motor. A housing mounting the motor has a bottom bowl section forming a first plenum for air blown by the blower and a top dome section forming a second plenum for air blown by the fan. The two plenums are substantially sealed from each other so that the fan continues to supply air to cool the motor and maintain it at its designed operating temperature regardless of whether or not the primary air flow is prevented or reduced, such as by an obstruction.

REFERENCES:
patent: 2767904 (1956-10-01), Doyle
patent: 2774293 (1956-12-01), Jenn
patent: 2822122 (1958-02-01), Cole
patent: 2822123 (1958-02-01), Cole
patent: 3220638 (1965-11-01), Petersen
patent: 3932070 (1976-01-01), Porter et al.
patent: 4190396 (1980-02-01), Tomioka et al.

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