Internally mounted duty cycling control

Details Internally mounted duty cycling control Internally mounted duty cycling control

1986-03-24

1987-12-15

Wayner, William E.

Automatic temperature and humidity regulation

Hot-air furnace

62231, 236 46R, 236DIG12, F23N 520

Patent

active

047127333

ABSTRACT:
A heating system and air conditioning system incorporating a duty cycling control switch are disclosed. The duty cycling control switch for either the furnace or air conditioning system is mounted within the supply side duct of the system, i.e., the hot air duct for a furnace or cold air duct for an air conditioner. The duty cycling control is a bi-metal switch totally enclosed within a case having a metal base whereby the heat from the air in the duct contacts the metal base which is transferred to a bi-metallic element which in turn opens or closes a switch. This makes the switch particularly responsive to gradual changes in the temperature of the output air but prevents the duty cycling switch from responding to rapid fluctuations of air temperature within the duct.

REFERENCES:
patent: 1918778 (1933-07-01), Persons
patent: 1956608 (1934-05-01), Bailey
patent: 3546652 (1970-12-01), Allen et al.
patent: 3776214 (1973-12-01), Coffman
patent: 3921899 (1975-11-01), Hamilton
patent: 4136730 (1979-01-01), Kinsey
patent: 4240579 (1980-12-01), Post
patent: 4470267 (1984-09-01), Davis et al.
patent: 4534181 (1985-08-01), Brown

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