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. 22, 1985
Filed:
Jan. 09, 1984
Applicant:
Inventors:
Sybille von Tomkewitsch, Poecking, DE;
Hans-Friedrich Schmidt, Eurasburg, DE;
Assignee:
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B / ;
U.S. Cl.
CPC ...
252511 ; 252502 ; 252506 ; 264105 ;
Abstract
Conductive plastic parts having defined electrical properties within a relatively narrow range are produced by controlling the dosage relationship between a given plastic and a conductive material, such as long-chain conductive lampblack, as a function of an electrical value (i.e., surface resistance) measured at an extruded admixture of the plastic and conductive materials, rather than by a gravimetrical or volumetrical relation.