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. 13, 1990
Filed:
Jan. 23, 1989
Applicant:
Inventors:
Josef Dullings, Issum, DE;
Werner Kloker, Krefeld, DE;
Dieter Freitag, Krefeld, DE;
Holger Lusgen, Solingen, DE;
Helmut Schmid, Krefeld, DE;
Helmut Winchenbach, Meerbusch, DE;
Assignee:
Bayer Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
425-3 ; 264-14 ; 264-22 ; 4251742 ; 4251744 ; 4251 / ; 425385 ; 425443 ; 4254519 ; 425808 ;
Abstract
A pacified mass is hardened under controlled conditions to produce low tension moulded parts (4) of duroplasts, the shringkage being compensated for by the movement of a lower mould part (2) and/or an upper mould part (3) to follow the mass.