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:
Nov. 22, 2016
Filed:
Nov. 06, 2012
Applicant:
Dorma Gmbh + Co. KG, Ennepetal, DE;
Inventors:
Assignee:
DORMA DEUTSCHLAND GMBH, Ennepetal, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 13/02 (2006.01); E05F 3/22 (2006.01); E05F 5/00 (2006.01); E05F 15/608 (2015.01); E05F 15/63 (2015.01);
U.S. Cl.
CPC ...
G05B 13/02 (2013.01); E05F 3/224 (2013.01); E05F 5/00 (2013.01); E05F 15/608 (2015.01); E05F 15/63 (2015.01); E05Y 2201/412 (2013.01); E05Y 2201/424 (2013.01); E05Y 2201/426 (2013.01); E05Y 2400/302 (2013.01); E05Y 2400/31 (2013.01); E05Y 2400/614 (2013.01); E05Y 2900/132 (2013.01);
Abstract
A power-assisted door closer includes an output shaft, a driving mechanism operatively connected to the output shaft, a mechanical energy accumulator for storing closing energy for the door leaf and acting upon the driving mechanism, a motor/generator unit operatively connected to the output shaft and an electrical energy accumulator for storing an assisting energy for the door leaf and being electrically connected to the motor/generator unit.