Automated glass entrance door assembly for walk-in coolers

Details Automated glass entrance door assembly for walk-in coolers Automated glass entrance door assembly for walk-in coolers

2007-08-21

2007-08-21

Leung, Philip H. (Department: 3742)

Electric heating

Heating devices

With heater-unit housing, casing, or support means

C219S218000

Reexamination Certificate

active

11153159

ABSTRACT:
An automated glass cooler entrance door assembly for an opening in a walk-in cooler comprising at least one fixed, stationary side door that defines a walkway about the opening for ingress and egress into the cooler, at least one opposing sliding door operatively suspended from a concealed drive mechanism above the opening to slide sideways from a closed position across the opening to close-off the cooler to and from an opened position overlapping the fixed stationary side door to allow customer ingress and egress to the cooler via the walkway through the opening and each of the doors comprising heated glass that is electrically connected to electrical power to heat the same.

REFERENCES:
patent: 2858408 (1958-10-01), Barroero
patent: 3859502 (1975-01-01), Heaney
patent: 4127765 (1978-11-01), Heaney
patent: 4382177 (1983-05-01), Heaney
patent: 4855567 (1989-08-01), Mueller
patent: 6225904 (2001-05-01), Jaffe et al.
patent: 6525659 (2003-02-01), Jaffe et al.

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