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:
Oct. 27, 1992
Filed:
May. 24, 1991
Applicant:
Inventor:
Franco Sanitate, Koblenz, DE;
Assignee:
Lucas Industries public limited company, Birmingham, GB;
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ;
U.S. Cl.
CPC ...
264235 ; 264236 ; 264347 ; 26433122 ; 264346 ;
Abstract
Method of tempering workpieces of duroplastic plastic, in particular a piston for a motor vheicle brake, provides that the workpiece is heated after the pressing or molding according to a predetermined time-dependent temperature rise for several hours and after an initial heating phase a difference from the respective glass transition temperature of 5.degree. to 40.degree. C. is observed.