Electric heating – Heating devices – With heater-unit housing – casing – or support means
Patent
1975-10-28
1976-06-29
Askin, Laramie E.
Electric heating
Heating devices
With heater-unit housing, casing, or support means
174148, 174138J, 248 68R, 338317, H05B 302
Patent
active
039670945
ABSTRACT:
A pair of strips having spaced cutouts therein are placed in lapping relation so the cutouts form openings to receive insulating bushings having circumferential grooves therearound at least some of the end margins of the intervening webs between the cutouts being retroverted to take the form of barbs which in the assembled relation face corresponding barbs of the other strip.
REFERENCES:
patent: 1307198 (1919-06-01), Harth
patent: 1493386 (1924-05-01), Rice
patent: 1628876 (1927-05-01), Ehrgott
patent: 1751797 (1930-03-01), Dibble
patent: 3812322 (1974-05-01), Osterkorn et al.
patent: 3920887 (1975-11-01), Kloos et al.
Dietsche Robert J.
Petersen Robert E.
Arenz E. C.
Askin Laramie E.
Westinghouse Electric Corporation
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