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:
Mar. 14, 1995
Filed:
Aug. 06, 1993
Applicant:
Inventors:
John J Frampton, Peoria, IL (US);
John A Grassi, Princeville, IL (US);
Karen R Raab, Peoria, IL (US);
Richard G Eaton, Pekin, IL (US);
Assignee:
Caterpillar Paving Products Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E01C / ;
U.S. Cl.
CPC ...
404118 ; 404 95 ;
Abstract
A screed assembly has a screed plate that is formed of a material having a thermal conductivity of less than about 25 W/mK, and a thermal barrier material having a thermal conductivity of less than about 0.5 W/mK that substantially covers an upper surface of the screed plate. The low thermal conductance properties of the screed plate obviate the need for auxiliary heating systems to preheat or maintain the screed plate in thermal equilibrium with a paving material.