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. 08, 2003
Filed:
Mar. 29, 2001
James R. Wells, Wichita, KS (US);
Koch Industries, Inc., Wichita, KS (US);
Abstract
A screed assembly for use with a prime mover adapted to be moved over a surface to distribute material on the surface. The assembly comprises a prime mover, a screed platform having a screed plate forming a bottom surface thereof and first and second sets of tow arms operably coupled between the prime mover and the screed platform. The tow arms of each set are pivotally coupled with the prime mover and the screed platform and the pivotal coupling of one arm is vertically spaced from the pivotal coupling of the other arm of the same set. Depending upon the dynamics of the paving operation being performed, the tow arms of each set may be in a crossed or a non-crossed orientation to provide positive control of the angle of attack of the screed plate relative to the tow angle. A method of maintaining a substantially uniform depth of a material being spread over a surface by a screed is also contemplated by the invention.