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:
Aug. 14, 1990
Filed:
Feb. 14, 1989
Applicant:
Inventor:
John A McDougal, Detroit, MI (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
73116 ; 324459 ;
Abstract
An ionization gap device for detecting the arrival of a flame front propagated within a combustion chamber of an internal combustion engine. The ionization gap device particularly features a plurality of electrodes which are generally equidistantly spaced from an ignition source for detecting the arrival of the flame front at more than one location in the combustion chamber.