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:
Jan. 27, 2015
Filed:
Sep. 17, 2010
Donald E. Wilt, Batavia, IL (US);
Keith A. Salis, Clare, IL (US);
Rosie Galindo, Chicago, IL (US);
Robert J. Pokorski, St. Charles, IL (US);
Kris C. Jurasek, Sugar Grove, IL (US);
William P. O'donnell, Batavia, IL (US);
Donald E. Wilt, Batavia, IL (US);
Keith A. Salis, Clare, IL (US);
Rosie Galindo, Chicago, IL (US);
Robert J. Pokorski, St. Charles, IL (US);
Kris C. Jurasek, Sugar Grove, IL (US);
William P. O'Donnell, Batavia, IL (US);
Miner Enterprises, Inc., Geneva, IL (US);
Abstract
A friction/elastomeric draft gear having a housing, a spring assembly arranged within the housing, and a friction clutch assembly having a wedge member and defining first sliding friction surface disposed at an angle θ relative to a longitudinal axis of the draft gear and a second friction surface disposed at an angle β relative to a longitudinal axis of the draft gear. The spring assembly is designed in combination with the angles θ and β of the first and second friction sliding surfaces relative to the longitudinal axis such that the draft gear consistently and repeatedly withstands between about 100 KJ and 130 KJ of energy imparted at less than three meganewtons over a range of travel of the wedge member in an inward axial direction relative to the draft gear housing not exceeding 120 mm.