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. 18, 2017
Filed:
Sep. 13, 2013
Olko-maschinentechnik Gmbh, Olfen, DE;
Walter Schröder, Freudenberg, DE;
OLKO-MASCHINENTECHNIK GMBH, Olfen, DE;
Abstract
A drum hoist including a movable drum which is arranged on a main shaft with a coupling apparatus for the releasable connection of the movable drum and the main shaft, a drum wheel which is connected fixedly to the movable drum so as to rotate with it, and a coupler wheel which can be displaced axially in an engagement direction and a disengagement direction with respect to the main shaft. In order to effectively prevent undesired disengagement of a coupler wheel of the coupling apparatus without mounting additional elements, coupling elements are arranged between the drum wheel and the coupler wheel which can be engaged and disengaged, which coupling elements can be brought into and out of engagement by a rotation of the engaged coupler wheel with respect to the drum wheel by the amount of the tooth flank play between the toothing systems of the two wheels.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile