Hinged blower access door with blower switch activation

Details Hinged blower access door with blower switch activation Hinged blower access door with blower switch activation

1993-09-09

1994-06-21

Yeung, James C.

Stoves and furnaces

Hot-air furnaces

Compressed air

126116A, F24H 302

Patent

active

053220510

ABSTRACT:
A front access door suitable for accessing and enclosing a housing within a multipoise furnace functions in conjunction with a safety shutoff switch to provide greater access and safety when assembling and servicing the furnace. The front access door is hingably supported upon the bottom wall of the housing for removal from the furnace and rotation between a closed position and an opened position. The shutoff switch is mounted outside the housing on the top housing wall. When the access door moves into a closed position, a switch activator, mounted to the access door, passes over the top housing wall and closes the switch, thereby allowing power to flow to a blower within the housing. When the access door is moved into an open position, the switch activator opens the switch, thereby terminating power to the blower.

REFERENCES:
patent: 3956674 (1976-05-01), Farley
patent: 4343290 (1982-08-01), Flatte
patent: 4964392 (1990-10-01), Bruno et al.

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