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:
Jun. 22, 1976
Filed:
Oct. 09, 1974
Applicant:
Inventors:
Harald Kalippke, Hohenacker, DT;
Gunter Brand, Stuttgart, DT;
Assignee:
Robert Bosch G.m.b.H., Gerlingen-Schillerhohe, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H / ; F02P / ;
U.S. Cl.
CPC ...
1231 / ; 200 / ; 200 / ;
Abstract
To match the wear and flattening of ignition breaker contacts to wear of the engagement element of the breaker contact arm with the breaker cam, the engagement element is made of polyimide, preferably sintered polyimide with, possibly, an additive of from 10 to 20% of a lubricating substance, for example about 15% graphite (by weight).