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:
Apr. 25, 2023
Filed:
Sep. 25, 2020
Applicant:
Hunter Douglas Industries Switzerland Gmbh, Lucerne, CH;
Inventors:
Elmar Taubenrauch, Wurster Nordseeküste, DE;
Guido Tants, Midlum, DE;
Assignee:
Hunter Douglas Industries Switzerland GmbH, Lucerne, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E06B 9/42 (2006.01); E06B 9/74 (2006.01);
U.S. Cl.
CPC ...
E06B 9/42 (2013.01); E06B 9/74 (2013.01);
Abstract
A roller blind () with a curtain that can be wound up on a winding shaft and can be unwound against a spring tension, with a spring () for generating the spring tension. The spring () is configured such that the curtain remains in each unwound position in a self-retaining manner. A manufacturing effort can be reduced during the assembly by the spring drive being assembled from one or more modularly connected, prefabricated partial springs ().