Automatic door opener with magnetic clutch

Details Automatic door opener with magnetic clutch Automatic door opener with magnetic clutch

2005-11-08

2008-09-02

Redman, Jerry (Department: 3634)

Movable or removable closures

With operator for movably mounted closure

Operating lever or link and closure swing about parallel axes

C192S01800B, C192S090000

Reexamination Certificate

active

07418800

ABSTRACT:
An automatic door opener (10) for opening or closing a door (28) includes a motor (14) driving a drive shaft (50) and an opener arm (18) connected to the door (28) and being responsive to rotation of the drive shaft (50) for moving the door (28) to an open or closed position. A clutch (46) operable to disengage the drive shaft (50) from the opener arm (18) is provided in the event of the door (28) engaging an obstacle, electric power being unavailable, or the door being fully open or fully closed. The door opener (10) may also include a brake (48) for selectively preventing movement of the door (28). Various embodiments of the invention are provided, including an electromagnet (80) and an electromagnetic brake (114).

REFERENCES:
patent: 2659830 (1953-11-01), Mason et al.
patent: 3059485 (1962-10-01), Bohlman et al.
patent: 3272290 (1966-09-01), Goddard
patent: 3609390 (1971-09-01), Feldman
patent: 3719005 (1973-03-01), Carli
patent: 3874117 (1975-04-01), Boehm
patent: 3955661 (1976-05-01), Popper et al.
patent: 4289995 (1981-09-01), Sorber et al.
patent: 4334161 (1982-06-01), Carli
patent: 4342354 (1982-08-01), Leivenzon et al.
patent: 4472910 (1984-09-01), Iha
patent: 4644693 (1987-02-01), Wang
patent: 4730513 (1988-03-01), Heinrich et al.
patent: 4836345 (1989-06-01), Anderson
patent: 4852706 (1989-08-01), Pietrzak et al.
patent: 4945678 (1990-08-01), Berner et al.
patent: 5018304 (1991-05-01), Longoria
patent: 5222327 (1993-06-01), Fellows et al.
patent: 5698073 (1997-12-01), Vincenzi
patent: 5808654 (1998-09-01), Loos
patent: 5878530 (1999-03-01), Eccleston et al.
patent: 5881497 (1999-03-01), Borgardt
patent: 5930954 (1999-08-01), Hebda
patent: 6002217 (1999-12-01), Stevens et al.
patent: 2005/0091928 (2005-05-01), Okulov et al.
patent: 2 508 530 (1982-12-01), None
patent: 90431 (2001-04-01), None
English Language Abstract for FR 2 508 530 of Noel Aimee Paul, for “Opening-Closing Drive For Door”, Publication Date: Dec. 31, 1982.
English Language Abstract for JP2001090431 of Nabco Ltd., for “Open-Close Driving Device For Swing Door”, Publication Date: Mar. 3, 2001.

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