Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1975-08-19
1977-07-05
Mayewsky, Volodymyr Y.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
156380, 156499, 219521, 219524, 425384, F27D 1102
Patent
active
040342050
ABSTRACT:
An apparatus for rectilineal heating of a flat workpiece of thermoplastic material, so that the workpiece is bendable upon heating, includes first and second frame-shaped supports, the second support being positionable opposite the first support. The second support is pivotally mounted so that it can be swung upwardly away from the first support. The apparatus further includes first and second pairs of bars which are substantially juxtaposed with one another and displaceably disposed on the first and second supports, respectively, for gripping the workpiece, and at least one heating wire forming a heat source for contactless operation which is strung between at least one pair of the bars. The heating wire can be variably spaced on at least one side of and with respect to the workpiece.
REFERENCES:
patent: 508819 (1893-11-01), Daft
patent: 3015600 (1962-01-01), Cook
patent: 3283469 (1966-11-01), McBrady et al.
patent: 3321353 (1967-05-01), Zelnick
patent: 3330716 (1967-07-01), Zelnick
patent: 3347729 (1967-10-01), Seefluth
patent: 3574037 (1971-04-01), Deans et al.
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