Electric heating – Heating devices – Combined with diverse-type art device
Patent
1982-08-25
1985-01-08
Bartis, A.
Electric heating
Heating devices
Combined with diverse-type art device
291573A, 62276, 165181, 219365, 219530, 219536, 219540, 219542, H05B 340, F25D 2108, F28F 130
Patent
active
044928513
ABSTRACT:
An evaporative cooling unit for a refrigeration system includes a plurality of spaced, parallel metal heat exchanging fins provided with a plurality of openings receiving successive turns of a coiled tube adapted to carry refrigerant through the unit. The fins are further provided with snap-action cutouts extending from the periphery of the fins inwardly to a location between adjacent rows of the coil turns and a rod-like electric resistance heating element for periodicaly defrosting the unit is held in the cutouts. Each cutout includes an entry slot inwardly tapered to a throat defined by deformable edges spaced apart a distance marginally less than the diameter of the heating element to present resistance to the passage of the heating element through the throat and a notch communicating with the throat and within which the heating element is held. The notch has a first dimension parallel to the entry slot which is greater than the diameter of the heating element and a second dimension transverse to the entry slot substantially equal to the heating element diameter to allow the heating element to clear the throat upon insertion into the notch but to be firmly held in the notch.
REFERENCES:
patent: 2170774 (1939-08-01), Fagan
patent: 2266373 (1941-12-01), Marlo
patent: 2529215 (1950-11-01), Hicke
patent: 2558952 (1951-07-01), Hayward
patent: 3063253 (1962-11-01), Dickson et al.
patent: 3099914 (1963-08-01), De Witt et al.
patent: 3153443 (1964-10-01), Kritzer
patent: 3780797 (1973-12-01), Gebelius
Bartis A.
Brazeway, Inc.
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