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:
Apr. 30, 1991
Filed:
Apr. 30, 1990
Kenneth J Dombrowski, Wheaton, IL (US);
Joseph Ergun, Itasca, IL (US);
The Chamberlain Group, Inc., Elmhurst, IL (US);
Abstract
A garage door operator for moving a garage door between open and closed posiitons includes a head unit for being held by a support structure positioned remote from the door with the head unit having a motor and a drive wheel with spaced teeth on its periphery for being driven by the motor. The operator also includes an elongate rail having a first end which is held by a support structure disposed adjacent and above the door with the rail including a pulley located adjacent the first end. The rail also includes a second end for being held adjacent to and in alignment with the drive wheel. The operator also includes a drive belt assembly for training about the drive wheel and the pulley and for being supported by the rail. The belt assembly includes a length of a plastic belt with teeth on one surface thereof matching the teeth on the drive wheel. The belt further assembly further includes a trolley for connection to the garage door and a first connector for joining one of the plastic belt to one end of the trolley. The connector includes a belt clip including a pair of spaced, aligned side walls with one side wall having an inside surface with undulations corresponding to the teeth of the plastic belt. The connector further includes a clip holder deformable from an as-formed position in which the holder can receive the side walls flanking the belt with the belt teeth aligned with the undulations, to a deformed position in which the holder firmly holds the side walls with the belt positioned therebetween.