Patent · US Expired

Control and motorization system

US6680594B2 · kind B2 · utility

50Cited by

11References

8Claims

0Family size

Assignee

Techniku, Inc. · US

Inventors

Robert W. Collett · Arvada, US
Daniel A. Huber · Arvada, US
Steven J. Wolf · New York, US
Paul Timmer · Groot-Ammers, NL

Key dates

Filing date	May 3, 2002
Grant date	Jan 20, 2004
Priority date	—
Expiry date	May 3, 2022

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE06B9/32
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

An apparatus for effecting and controlling the movement of a window covering member between different positions in response to a disturbance of the window covering. Also, an apparatus for assisting the manipulation of a window covering by way of potential energy stored in a spring. Also a torque sending device having a design that is insensitive to component tolerances.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.