Aseismatic device for doors

Details Aseismatic device for doors Aseismatic device for doors

1982-08-19

1983-09-27

Kannan, Philip C.

Movable or removable closures

Combined

49381, 49400, E06B 700

Patent

active

044060874

ABSTRACT:
An aseismatic device for a door comprises a main portion and a roller-bearing plate. The main portion includes a plate capable of being attached to one upper corner of one side door, which is to be closed and locked. The plate is provided with a longitudinally rotatable roller in such a manner that it projects somewhat upwardly and with a laterally rotatable roller in such a manner that it projects somewhat laterally.
The roller-bearing plate is capable of being attached to one corner portion of a door frame corresponding to said main portion, and has a pair of planes for bearing said rollers.
The main portion and the roller-bearing plate are arranged in such a manner that the rollers are normally not in contact with said bearing planes.

REFERENCES:
patent: 2739341 (1956-03-01), Malcolm
patent: 4073093 (1978-02-01), Ookawa et al.

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