Shell and door frame with door panel assembly for enclosed insul

Details Shell and door frame with door panel assembly for enclosed insul Shell and door frame with door panel assembly for enclosed insul

1996-08-06

1998-03-17

Dorner, Kenneth J.

Movable or removable closures

Panel with closure feature

49504, 49371, E06B 300

Patent

active

057273499

ABSTRACT:
For refrigeration units such as walk-in coolers and freezers, a shell, door frame and door panel assembly adapted to enclosed insulative panel constructions wherein the shell confines a selected standard and/or oversize door frame. The door frames are of composite plastic and steel construction including lightweight external plastic hardtracks forming top, sides and screed bottom, the purposes of the external construction being to confine frame elements which are formed of steel, such that by virtue of the separation of elements forming jamb frames and header frames, applied insulation to the overall assembly is rendered most effective. The standard and oversize door panel assemblies are adapted to encompass a precut retainer by means of inside and outside panels, the latter of which contains backup plates for hinges and for door closers and the like.

REFERENCES:
patent: 1227577 (1917-05-01), Brewer
patent: 1902499 (1933-03-01), Herreshoff
patent: 2927352 (1960-03-01), Chenoweth
patent: 3618261 (1971-11-01), Torbett
patent: 3894357 (1975-07-01), Stanfield
patent: 3963269 (1976-06-01), Rosenberg
patent: 4763499 (1988-08-01), Boyle
patent: 4796445 (1989-01-01), Norden, Jr.
patent: 5077940 (1992-01-01), LaRose, Jr.
patent: 5141046 (1992-08-01), Duncan
patent: 5154461 (1992-10-01), Prescott et al.
patent: 5424118 (1995-06-01), McLaughlin

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