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, 1978
Filed:
May. 21, 1976
Applicant:
Inventor:
Ferdy P Mayer, 38000 Grenoble, FR;
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ; H01R / ; F02P / ;
U.S. Cl.
CPC ...
1231 / ; 1231 / ; 1231 / ; 313134 ;
Abstract
The protection against interference emitted by automobile internal combustion engines or other vehicles is provided by an element for a spark plug or for a distributor, comprising a shield 3, a resistor 4 increasing with the frequency to be filtered and a capacitor 5, selected in such a manner that the RC product is higher than the time constant corresponding to the cut-off frequency. Good reduction of interference is obtained between 10 and 1000 MHz.