Door unit for cold storage

Closure fasteners – Operators with knobs or handles

Reexamination Certificate

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Details

C292S241000

Reexamination Certificate

active

07871113

ABSTRACT:
The invention has an object to provide a door unit for a cold storage, enabling easy opening and closing operations of a door by engaging a latch with a latch receiver. The door unit includes a handle pivotally mounted on the side face of an outer door on its non-pivotal side at a predetermined height, and a latch receiver provided on the forward portion of a side surface of a main body at a height corresponding to the handle. The handle includes a grip to be grasped by fingers of a hand, and a latch detachably engageable with the latch receiver so that the latch engages a roller of the latch receiver in a state of the substantially vertical grip, and when the grip is pivotally moved in a direction away from the main body to a position where the grip intersects a horizontal plane at a predetermined angle, the pivotal movement of the handle is stopped and the latch disengages from the roller of the latch receiver.

REFERENCES:
patent: 1658481 (1928-02-01), Ekman
patent: 1887210 (1932-11-01), Miller
patent: 2212563 (1940-08-01), Groeger
patent: 2256447 (1941-09-01), Burke
patent: 2315337 (1943-03-01), Katz
patent: 2394784 (1946-02-01), Kelly
patent: 2732238 (1956-01-01), Dornberg
patent: 2893772 (1959-07-01), Edwards
patent: 4082077 (1978-04-01), Marfatia et al.
patent: 4704882 (1987-11-01), Takasaki
patent: 4826222 (1989-05-01), Davis
patent: 6543820 (2003-04-01), Kelly
patent: 7100951 (2006-09-01), Jien
patent: 337175 (1854-05-01), None
patent: 2001-183052 (2001-07-01), None

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