The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 2016
Filed:
May. 11, 2012
Applicant:
Yasuo Nakano, Fukushima, JP;
Inventor:
Yasuo Nakano, Fukushima, JP;
Assignees:
Other;
miimo LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E05F 13/02 (2006.01); E05F 13/04 (2006.01); E05F 1/02 (2006.01); E05F 1/16 (2006.01); E05F 11/54 (2006.01);
U.S. Cl.
CPC ...
E05F 13/02 (2013.01); E05F 1/02 (2013.01); E05F 1/16 (2013.01); E05F 11/54 (2013.01); E05F 13/04 (2013.01);
Abstract
A step-plate mechanism is provided for a door-opening/closing device that is powered by the downward movement of a step plate caused by a stepping force of a pedestrian, with the step plate being disposed on a floor at both the front and back of a door as seen by a pedestrian, including a return mechanism is provided to bias the step plate, which moves downward by the stepping force of the pedestrian, to return to its original position after the pedestrian passes.