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:
Aug. 13, 2013
Filed:
Dec. 27, 2010
Applicants:
Bob Schaefer, Cherry Valley, IL (US);
Eric Larsen, Cortland, IL (US);
Roland Hagemeyer, Rochelle, IL (US);
Inventors:
Bob Schaefer, Cherry Valley, IL (US);
Eric Larsen, Cortland, IL (US);
Roland Hagemeyer, Rochelle, IL (US);
Assignee:
Louis Berkman Company, Steubenville, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01C 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A material spreader may include an electric interlock mechanism that is adjustable between: (1) a first condition where an electric supply line can supply electricity to operate a material transfer member and a door cannot be moved into an open position; and, (2) a second condition where the electric supply line cannot supply electricity to operate the material transfer member and the door can be moved into an open position.