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:
Mar. 23, 2004
Filed:
Feb. 26, 2001
Robert W. Collett, Golden, CO (US);
Daniel Huber, Denver, CO (US);
James E. Peterson, Peyton, CO (US);
Techno Patenten B.V., , NL;
Abstract
A system for effecting and controlling the movement of a window covering between different positions. In particular, the present invention includes a motor coupled to a window covering by way of a drive assembly. The drive assembly includes one or more hollow shafts, a drive shaft, and a torque sensing mechanism. The drive shaft is coupled between the motor and a hollow, sliding shaft by way of the torque sensing mechanism. Rotation of the motor causes a lift cord to wind or unwind from the hollow sliding shaft wherein the frictional engagement of the lift cord against the hollow, sliding shaft causes the shaft to slide. Additionally, the present invention includes a method for detecting and responding to disturbances in force sensing devices coupled to the lift cord.