Garage door opener

Details Garage door opener Garage door opener

2006-06-13

2006-06-13

Strimbu, Gregory J. (Department: 3634)

Movable or removable closures

Closures interconnected for concurrent movement

Opposed similar movement

C049S366000, C049S324000, C049S356000

Reexamination Certificate

active

07059084

ABSTRACT:
An automated garage door opener for opening an outwardly swinging door pivotally mounted about a vertical axis. The garage door opener includes a track, a trolley slidably mounted on the track, and at least one push bar having a first end and a second end. The push bar pivotally couples with the trolley at the first end and with the outwardly swinging door at the second end. A trolley coupling is provided for pivotally connecting the first end of the at least one push bar with the trolley. A door coupling for pivotally connecting the second end of the least one push bar with the outwardly swinging door is also provided. The door coupling is mountable on the outwardly swinging door. The push bar includes a spring biased slip joint for automatically adjusting the length of the push bar as the door opener is operated.

REFERENCES:
patent: 1468081 (1923-09-01), Ross
patent: 1478601 (1923-12-01), Davis
patent: 1480958 (1924-01-01), Schneider
patent: 1544542 (1925-07-01), Ainsworth
patent: 1570641 (1926-01-01), Perkins
patent: 1700848 (1929-02-01), Martin
patent: 1804231 (1931-05-01), Rantz
patent: 1900176 (1933-03-01), Flewell
patent: 1905126 (1933-04-01), Beeman
patent: 2032803 (1936-03-01), Hunter
patent: 2034445 (1936-03-01), Robinson
patent: 2601604 (1952-06-01), Ford
patent: 3633250 (1972-01-01), Romney
patent: 3891111 (1975-06-01), Snazuk
patent: 5239776 (1993-08-01), Lhotak
patent: 5988710 (1999-11-01), Kortschot et al.
patent: 6324787 (2001-12-01), Burr

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