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:
Jul. 19, 1983
Filed:
Jan. 21, 1981
Tadashi Naito, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
The positions of selected valves are determined by measurement of their respective retainers by means of displacement gauges. When a given piston is at top dead center in the compression stroke, the retainers of the intake and exhaust valves of that piston are not displaced, but when that same piston is at the top dead center position in the exhaust stroke the intake and exhaust valve retainers of that cylinder are displaced to known positions as are intake and exhaust valve retainers of certain other cylinders, thereby indicating whether the crank position is such as to place the selected piston in the top dead center position of the compression stroke or in the top dead center position of the exhaust stroke. Inability to obtain correct correlated readings for the retainers of the related valves indicates likelihood of misassembly of the cotters on one or more of the valves.