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. 01, 1988
Filed:
Apr. 02, 1987
Applicant:
Inventors:
Henning N Kornbrekke, Burlington, CT (US);
Philip J Lombardo, Simsbury, CT (US);
Leon Boiucaner, Farmington, CT (US);
Sam L Crocker, Avon, CT (US);
Assignee:
The Stanley Works, New Britain, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05F / ;
U.S. Cl.
CPC ...
49138 ; 49340 ; 49345 ;
Abstract
An operator for swing-door employs an electronic control unit for controlling the operation of a motor. The motor is bi-directionally driven at various speeds for opening, closing, braking and maintaining a given position of an associated swing-door. The motor drive shaft is mechanically connected via a timing belt/pulley system with an operator shaft for transmitting torque to a linkage assembly. The linkage assembly is configured to provide a high mechanical advantage at the fully opened and fully closed positions of the associated swing-door.