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. 15, 2011
Filed:
Oct. 06, 2010
Kevin J. Goering, Cambridge, IA (US);
Joel M. Schreiner, Ankeny, IA (US);
Jeffrey R. Fox, Minburn, IA (US);
Mark B. Vollmers, West Des Moines, IA (US);
Kevin J. Goering, Cambridge, IA (US);
Joel M. Schreiner, Ankeny, IA (US);
Jeffrey R. Fox, Minburn, IA (US);
Mark B. Vollmers, West Des Moines, IA (US);
Deere & Company, Moline, IL (US);
Abstract
A light-weight upright shaft () supports cotton harvester doffers (). An internally threaded mounting end () receives a bolt () which is stretchable to a greater degree than the shaft to provide a reliable shaft preload condition that prevents the doffers from spinning relative to the shaft. The shaft may be hollow and may have a diameter greater than conventional shafts to reduce weight and increase the stiffness and thereby increase critical speed. The preload structure does not require a nut and has increased thread engagement.