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:
May. 08, 1984
Filed:
Sep. 30, 1982
Applicant:
Inventor:
Louis R Focht, Farmington Hills, MI (US);
Assignee:
Ford Motor Company, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01L / ; G01L / ;
U.S. Cl.
CPC ...
73 35 ; 73116 ; 123494 ;
Abstract
A combination pressure and knock sensor produces an electrical signal in response to the intake manifold absolute pressure of an internal combustion engine. A high pass filter is coupled to the output of the sensor for providing a signal indicative of engine knock. A low pass filter is coupled to the output of the sensor for providing a signal indicative of absolute intake manifold vacuum pressure.