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:
Apr. 05, 1977
Filed:
May. 07, 1976
Philip P Stick, Enfield, CT (US);
James F Willenbecher, East Windsor, CT (US);
Lee R Armstrong, Enfield, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
A transducer mounted on the flywheel housing of an internal combustion engine senses the passage of each tooth on the flywheel of the engine. The number of teeth in the flywheel (to aid in calculating factors such as engine speed) is measured by counting teeth during one full engine cycle, as determined by successive cylinder identification pulses, and the tooth count is selected from a table of industry standard numbers of permissible teeth as the one which is within two teeth of the count measured by either of the methods described hereinbefore. Display of the selected number of teeth is made without an error indication if within two teeth of a standard number from a table; if not within two teeth of a standard number, the measured number is displayed, and error is indicated. The operator can select the displayed number of teeth or enter a number which he chooses.