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:
Oct. 13, 2015
Filed:
Apr. 01, 2011
Nicolaas Dekker, PA Rhoon, NL;
Christianus Wilfred Michael Slobbe, DS Tilburg, NL;
Nicolaas Dekker, PA Rhoon, NL;
Christianus Wilfred Michael Slobbe, DS Tilburg, NL;
Hunter Douglas Industries BV, Rotterdam, NL;
Abstract
A mechanism for extending or retracting for a covering for an architectural opening with respect to architectural opening, including a rotatable drive shaft (); at least one lift cord (), at least one cord spool () for winding and unwinding the at least one lift cord, the cord spool being mounted for rotation with the drive shaft and being axially stationary. The cord spool has a first diameter end () and a second diameter end (), the first diameter being larger than the second diameter, and the spool has a first generally conical circumferential spool portion () therebetween, wherein the first spool portion () comprises a plurality of steps () each step having a tread (A,A,A,A,A,A).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile