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:
Aug. 30, 2005
Filed:
Aug. 30, 2002
Dusan J. Hvolka, Salt Lake City, UT (US);
Steve G. Pitts, Coffeyville, KS (US);
Cary D. Pitts, Coffeyville, KS (US);
Dusan J. Hvolka, Salt Lake City, UT (US);
Steve G. Pitts, Coffeyville, KS (US);
Cary D. Pitts, Coffeyville, KS (US);
Darwin Industries, Inc., Coffeyville, KS (US);
Abstract
A two speed gear box including a casing that is rotatably supported by a central planetary gear carrier. The two speed gear box further includes a central mounted planetary gear assembly with a ring gear controlled by a low speed clutch and a sun gear controlled by a high speed clutch that cooperate to provide three modes of operation for the output shaft with respect to a drive axle. The three modes of operation include a neutral mode, a high speed mode and a low speed mode. Selective engagement and disengagement of the low speed and high speed clutches provide for selection of one of the modes of operation.