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. 22, 2005
Filed:
Jun. 11, 2003
Applicants:
Winston Glenn Walker, Littleton, CO (US);
Norman C. Walker, Solana Beach, CA (US);
Inventors:
Winston Glenn Walker, Littleton, CO (US);
Norman C. Walker, Solana Beach, CA (US);
Assignee:
Harmonic Design, Inc., Los Angeles, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D003/00 ;
U.S. Cl.
CPC ...
Abstract
A small permanent magnet is affixed to the protruding portion of a rotor of a motor that is coupled to gears in a gear enclosure. The rod of a window covering is coupled to the gears such that when the motor is energized by a user command signal, the window covering moves. At least one pick-up coil is affixed to the receptacle of the gear enclosure, such that when the motor with magnet turns, the pick-up coil senses magnetic pulses that can be used to determine the speed, position, and direction of rotation of the motor.