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:
Jan. 03, 1984
Filed:
Feb. 24, 1982
Daniel Dooley, Burr Ridge, IL (US);
Joseph Dooley, Chicago, IL (US);
Creative Tool Company, Burr Ridge, IL (US);
Abstract
A stroboscopic timing system for diesel engines of the type having apertures in each cylinder for normally accepting glow plugs. A signal that varies in accordance with pressure changes within the cylinder is generated by a piezoelectric transducer mateable with a glow plug aperture, and the transducer signal is processed by filtering and other discriminating circuitry to provide a timing pulse that occurs upon the initiation of combustion within the cylinder. A conditioning circuit shapes this pulse into suitable form for triggering a high intensity stroboscopic light for illuminating timing marks on the engine drivetrain.