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. 19, 2006
Filed:
Feb. 11, 2004
Applicant:
Konrad Welfonder, Bremerhaven, DE;
Inventor:
Konrad Welfonder, Bremerhaven, DE;
Assignee:
Hunter Douglas Industries BV, El Rotterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E06B 3/48 (2006.01);
U.S. Cl.
CPC ...
Abstract
A cord tensioner for a guide cord of a cord-guided blind which has an upper rail, a lower rail and a blind material extending between the upper and lower rails and in which the upper rail, the lower rail or both is movable; the cord tensioner being attached to the upper or lower rail; and wherein the cord tensioner includes a compression spring and the guide cord engages the spring so that a pulling force on the guide cord compresses the spring.