Thermoplastic grid melter

Details Thermoplastic grid melter Thermoplastic grid melter

1985-10-29

1988-09-20

Rolla, Joseph J.

Dispensing

With heating or cooling means

Heating only

219422, 219421, F27B 1404, B67D 562

Patent

active

047719206

ABSTRACT:
Apparatus for melting and dispensing thermoplastic material including a hopper for receiving solid thermoplastic material, a flow-through grid melter secured to the bottom of the hopper and a reservoir mounted beneath the grid melter. The grid melter includes multiple parallel ribs extending across the width of the bottom of the grid melter. A single sinuous electrical resistance heater is cast in situ into the ribs of the grid melter. The underside of the grid melter is provided with recesses which function as accumulators to prevent the buildup of pressure on the underside of the grid melter upon remelt of solid thermoplastic material located above the level of the top of the grid melter.

REFERENCES:
patent: 2203620 (1940-06-01), Smith
patent: 3531624 (1970-09-01), Henneberger
patent: 3585361 (1971-06-01), Rosen et al.
patent: 3792801 (1974-02-01), Baker et al.
patent: 3964645 (1976-06-01), Scholl
patent: 4009974 (1977-03-01), Scholl
patent: 4308447 (1981-12-01), Notzold et al.
patent: 4416326 (1983-11-01), Van Vlaenderen
patent: 4417675 (1983-11-01), Abt et al.
patent: 4456151 (1984-06-01), Lewellen
patent: 4474311 (1984-10-01), Petrecca
patent: 4485942 (1984-12-01), Petrecca
patent: 4667850 (1987-05-01), Scholl et al.

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