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. 19, 2004
Filed:
Feb. 27, 2002
Applicant:
Inventors:
James J. Fitzgibbon, Streamwood, IL (US);
John V. Moravec, Willow Springs, IL (US);
Bradley Farris, Chicago, IL (US);
Assignee:
The Chamberlain Group, Inc., Elmhurst, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 1/00 ;
U.S. Cl.
CPC ...
H02P 1/00 ;
Abstract
A movable barrier operator includes an automatic force incrementing system for adjusting the maximal opening and closing force to be placed upon the movable barrier during a learn operation. The movable barrier operator also includes a control unit with an ambient temperature detector which controls the motor to move at a specified force and is used to inhibit motor operation depending on the motor temperature derived from the temperatur detected by the temperature detector.