Air blower safety control

Details Air blower safety control Air blower safety control

1988-11-15

1989-11-21

Powell, Jr., Everette A.

Rotary kinetic fluid motors or pumps

With control means responsive to non-cyclic condition...

Temperature or fluid force responsive member

412 12, F04D 2958

Patent

active

048818704

ABSTRACT:
An air blower assembly for a spa having a vent valve in the outlet passage from the blower, with a bi-metallic coil for opening the valve and venting the outlet when the temperature reaches a preselected danger level. The valve comprises two telescoped tubular members having elongated vent ports movable angularly into alignment, the inner member being rotatably supported on the assembly for adjustment of the set point and the outer member being rotatable about the inner member by the coil.

REFERENCES:
patent: 2145230 (1939-01-01), Arrighi
patent: 2955745 (1960-10-01), Hunter
patent: 3357635 (1967-12-01), Ullery
patent: 4057372 (1977-11-01), Johnson et al.
patent: 4160629 (1979-07-01), Hidden et al.
patent: 4248570 (1981-02-01), Conger, IV

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