Automatic door operator

Movable or removable closures – With operator for movably mounted closure – Operator drives closure along guide

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

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

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

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.

Rate now

     

Profile ID: LFUS-PAI-O-788914

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.