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:
Nov. 26, 1991
Filed:
Apr. 21, 1987
Michael G Beeley, Logan, UT (US);
Logan Manufacturing Company, Logan, UT (US);
Abstract
The flexible tiller has a center and two end sections, each including a cutter bar, frame, apron and grooming bar. The two tiller end sections are connected flexibly to the ends of the center section by frame to frame hinges and by cutter to cutter universal joints, so that the end sections can rotate freely about the hinges. The tiller center section is secured to the towing mechanism to oscillate about a central horizontal axis in the direction of travel. The oscillating center section and the two pivotally attached end sections cooperate to enable the tiller to closely conform to and thoroughly groom rolling snow paths without reducing them to flat ones. The rolling paths are enjoyable to ski, and are slower and safer. A controllable hydraulic ram is mounted to act across each hinge, so that the operator may select the degree of bending permitted at each hinge, and may hydraulically lock it into selected position, if desired.