Pivotal device for door and window

Details Pivotal device for door and window Pivotal device for door and window

1999-07-21

2000-11-21

Mah, Chuck Y.

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Hinge

Including means to hold or retard hinged members against...

16344, 16387, E05D 1110

Patent

active

061484814

ABSTRACT:
A pivotal device connected between a door and a door frame includes a first part connected to the door frame and a second part connected to the door. The first part has a torsion member connected thereto which has a roller connected to one of two ends of the torsion member. A cam member is rotatably mounted to the first part and has a plurality of recesses one of which is engaged with the roller. The second part has a tube which is rotatably mounted to a shaft of the first part and is fixedly connected to the cam member. The door is pivoted relative to the door frame and positioned at an angle when the roller is engaged with one of the recesses of the cam member.

REFERENCES:
patent: 4932101 (1990-06-01), Lualdi
patent: 5235726 (1993-08-01), Geier, Jr. et al.
patent: 5675869 (1997-10-01), Lotz
patent: 5850673 (1998-12-01), Wood, Sr. et al.

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