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. 22, 1980
Filed:
Jul. 27, 1978
James L Wirsbinski, Marshfield, WI (US);
Berg Equipment Corporation, Marshfield, WI (US);
Abstract
A door opener mechanism for the side doors in a feed or grain elevator or conveyor in which the doors are hinged to the sides of the conveyor includes a crank arm pivotally connected to the conveyor at a point intermediate the side walls to provide rotation of the crank arm about a vertical axis. The crank arm is connected to the hinged doors by links and the crank arm is connected to a control arm by a link. The control arm is arranged to be connected to ropes for remote control of the door opening device. The control mechanism employed provides a relatively low profile, thus enabling placement of the conveyor and door opening mechanism close to a ceiling, which is desirable in places of limited space such as old barns.