Earthquake-resistant door structure and an earthquake-resistant

Details Earthquake-resistant door structure and an earthquake-resistant Earthquake-resistant door structure and an earthquake-resistant

1997-07-15

1999-07-27

Redman, Jerry

Movable or removable closures

Panel with closure feature

521671, E06B 300

Patent

active

059270195

ABSTRACT:
Disclosed are improvements in earthquake-resistant devices and earthquake-resistant doors. An earthquake-resistant device according to the present invention comprises a stationary frame and a roll partly exposed from and rotatably fixed to the stationary frame. The earthquake-resistant device can be embedded and fixed to the upper or lower lateral side of the door with its roll permitted to rotate vertically, or can be embedded and fixed to the non-hinged longitudinal side of the door with its roll permitted to rotate horizontally. An earthquake-resistant door structure according to the present invention has one or more earthquake-resistant devices built therein, particularly in the upper, lateral side and the non-hinged, longitudinal side of the door, allowing their rolls to appear partly.

REFERENCES:
patent: 4503640 (1985-03-01), Stern
patent: 4850145 (1989-07-01), McAfee
patent: 4960150 (1990-10-01), Ryan

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