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:
Sep. 02, 2014
Filed:
Mar. 21, 2012
Jameson Michael Smieja, Brooklyn Park, MN (US);
Luke Edward Graham, Maple Grove, MN (US);
Tobin Rasmusson, Bloomington, MN (US);
Steven Michael Haas, Shakopee, MN (US);
Jason William Kopacz, Saint Louis Park, MN (US);
Jameson Michael Smieja, Brooklyn Park, MN (US);
Luke Edward Graham, Maple Grove, MN (US);
Tobin Rasmusson, Bloomington, MN (US);
Steven Michael Haas, Shakopee, MN (US);
Jason William Kopacz, Saint Louis Park, MN (US);
Caterpillar Paving Products Inc., Minneapolis, MN (US);
Abstract
A height adjustment system for a paving screed apparatus and a method for adjusting the height of the endgates of a screed system are disclosed. In a disclosed system, the system includes an endgate coupled to a biasing element, such as a spring or a hydraulic cylinder and rod. The biasing element is coupled to an actuator. The actuator is linked to a controller. The biasing element is moveable between a compressed position and an extended position with a setpoint range disposed between the compressed and extended positions. The biasing element is also associated with a sensor for measuring vertical displacement of the biasing element, pressure or load on the biasing element with respect to the setpoint range.