Movable or removable closures – With operator for movably mounted closure – Operator drives closure along guide
Patent
1993-04-02
1994-07-05
Kannan, Philip C.
Movable or removable closures
With operator for movably mounted closure
Operator drives closure along guide
49118, 49123, 49139, 49410, 49506, E05F 1100
Patent
active
053256280
ABSTRACT:
An automatic door operator which works in conjunction with a sliding door(s) and existing track on which the door(s) moves, to open and close the door(s) without manual pushing and pulling. The invention is useful on single-sliding door installations, biparting single-track installations, and biparting overlapping door installations.
REFERENCES:
patent: 1222136 (1917-04-01), Reynolds
patent: 1324587 (1919-12-01), Elliott
patent: 1658640 (1928-02-01), Huberty
patent: 1778360 (1930-10-01), Gorman
patent: 1913725 (1933-06-01), Schweig
patent: 2235381 (1941-03-01), McCormick
patent: 3199858 (1965-08-01), Koblensky
patent: 3344556 (1967-10-01), Edwards
patent: 3432966 (1969-03-01), Bordner
patent: 3438147 (1969-04-01), Lander
patent: 3909980 (1975-10-01), Courtney et al.
patent: 4050191 (1977-09-01), Azuma
patent: 4131830 (1978-12-01), Lee et al.
patent: 4245614 (1981-01-01), Hurwitz et al.
patent: 4304071 (1981-12-01), Obrecht
patent: 4475313 (1984-10-01), Governale
patent: 4635398 (1987-01-01), Nakamura
patent: 4750118 (1988-06-01), Heitschel et al.
patent: 4905542 (1990-03-01), Burm et al.
LandOfFree
Automatic door operator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automatic door operator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic door operator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-788914