Thermally responsive damper assembly having interfitting parts a

Details Thermally responsive damper assembly having interfitting parts a Thermally responsive damper assembly having interfitting parts a

1985-02-27

1986-05-13

Tanner, Harry

Metal working

Method of mechanical manufacture

Assembling or joining

236 93R, 236 1G, B21D 3900, G05D 2300

Patent

active

045877068

ABSTRACT:
A thermally responsive damper assembly for mounting into a duct which is to be regulated by the damper assembly comprises a damper plate having oppositely disposed notch portions and arm portions one piece with said damper plate projecting outwardly in said notch portions and thermally responsive convoluted coil elements having convolutions surrounding said arm portions, bracket means affixed to the outermost convolution of each of said coil elements for attachment to said duct, and each of said coil elements having innermost convolutions keyed for attachment in only one orientation to an arm projecting outwardly in a notch portion of said damper plate.

REFERENCES:
patent: 1784608 (1930-12-01), Meyers
patent: 2102873 (1937-12-01), Anderson
patent: 2117529 (1938-05-01), Wile et al.
patent: 2959933 (1960-11-01), Burke
patent: 2975975 (1961-03-01), Weber
patent: 3366333 (1968-01-01), Diehl
patent: 4165833 (1979-08-01), Nagel
patent: 4190140 (1980-02-01), Konkle et al.
patent: 4236668 (1980-12-01), Prikkel, III

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