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. 08, 1986
Filed:
Dec. 24, 1984
Randall B Blum, Peoria, IL (US);
Raymond O Starnes, Chillicothe, IL (US);
Caterpillar Tractor Co., Peoria, IL (US);
Abstract
Engine barring devices are connected to engines. Known barring devices have been used to rotate crankshafts of engines and adding features to these known devices increases the complexity and cost of such devices. The subject barring device includes a shaft adapted for both axial and rotational movement. A gear is attached to one end of the shaft and is moved axially in a first direction to a first position where a holding device holds the shaft in the first position. In the first position the gear is engaged driving with a flywheel connected to the crankshaft of the engine. A tool engaging portion located on the shaft is adapted to engage with a turning tool. With the shaft in the first position, the turning tool can be used to rotate the crankshaft of the engine. A locking device is included to hold the crankshaft in one of the plurality of rotational positions. The subject barring device provides a holding device to hold the shaft in the first position, a device to disable the activation of a starting system, a tool engaging portion allowing rotation of the shaft and a locking device to lock the shaft in one of a plurality of rotational positions.