Heating apparatus for heating sheet material before the forming

Details Heating apparatus for heating sheet material before the forming Heating apparatus for heating sheet material before the forming

1985-07-23

1987-03-17

Goldberg, E. A.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

425508, 425DIG13, H05B 320

Patent

active

046509674

ABSTRACT:
Apparatus for uniformly preheating sheet material between opposed, spaced, parallel, heated members movable relative to each other into heat-transferring engagement with the sheet material, characterized in that one of said members has a uniformly-flat, unyielding surface and the other a yieldable surface embodying a plurality of uniformly-distributed protrusions between which there are recesses.

REFERENCES:
patent: 3311692 (1967-03-01), Baird
patent: 3313002 (1967-04-01), Wyeth
patent: 3604053 (1971-09-01), Zemlin
patent: 3607992 (1971-09-01), Scheiding
patent: 4580033 (1986-04-01), Sakurai

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