Door operator apparatus

Details Door operator apparatus Door operator apparatus

1981-10-13

1984-02-07

Downey, Kenneth

Movable or removable closures

With operator for movably mounted closure

Operating lever or link and closure swing about parallel axes

49344, E05F 1124

Patent

active

044294913

ABSTRACT:
The present invention relates to a mechanism for operating a panel (12) suitably mounted to a frame (12). An actuator (13) pivotally attached to frame (11) provides a linear pulling and pushing force. A pivot arm (15) constructed and arranged for interconnecting actuator (13) to panel (12) and pivotally attached to panel (12) and actuator (13). A motion arm (14) pivotally attached to frame (11) and pivotal arm (15) cooperates with pivot arm (15) to transfer the linear force of actuator (13) into a panel (12) opening and closing force.

REFERENCES:
patent: 1269545 (1918-06-01), Mengedoht
patent: 1716707 (1929-06-01), Schoelkopf
patent: 1859364 (1932-05-01), Haskell
patent: 2550349 (1951-04-01), Helz
patent: 2739484 (1956-03-01), Orr
patent: 3103351 (1963-09-01), Ahlgren
patent: 3269061 (1966-08-01), Massina
patent: 3344555 (1967-10-01), Hugle
patent: 3645042 (1972-02-01), Bolli
patent: 3708915 (1973-01-01), Davey
patent: 3864875 (1975-02-01), Hewitt
patent: 3886425 (1975-05-01), Weiss
patent: 3936977 (1976-02-01), Runft et al.
patent: 4007557 (1977-02-01), Davis et al.
patent: 4079988 (1978-03-01), Randall

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