Electric heating – Metal heating – Of cylinders
Patent
1978-01-16
1980-03-25
Reynolds, Bruce A.
Electric heating
Metal heating
Of cylinders
219 1049R, 219 1053, 219 1057, 336 83, H05B 518
Patent
active
041952146
ABSTRACT:
There has been developed end units for cans of the easy opening type wherein end panels of the end units are provided with patterns of holes to facilitate the dispensing of a product. The holes are closed by means of strips, preferably formed of plastics material, overlying the holes and being bonded to the metal of the end units adjacent the holes. It is preferred that the bonding of the strips be effected by heat. A special induction heater has been constructed which induces into the metal of the area to where the strips are to be bonded electrical energy which results in the heating of the metal. The heater is particularly constructed so as to compensate for the holes in the metal of the end units and thus a uniform heating of the metal over the area to which the strip is to be applied can be effected.
REFERENCES:
patent: 2314865 (1943-03-01), Bierwirth
patent: 2386819 (1945-10-01), Sherman
patent: 2402508 (1946-06-01), Strickland
patent: 2485843 (1949-10-01), Pinkney
patent: 2493771 (1950-01-01), Marquardt et al.
patent: 3808074 (1974-04-01), Smith et al.
patent: 4017701 (1977-04-01), Mittelmann
Brown Charles E.
Leung Philip H.
Reynolds Bruce A.
The Continental Group Inc.
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