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:
Dec. 20, 1977
Filed:
Sep. 10, 1976
Donald William Kelbel, Muncie, IN (US);
Borg-Warner Corporation, Chicago, IL (US);
Abstract
A power transfer mechanism incorporates a planetary or epicyclic gear set which may be shifted between high and low-range conditions to establish direct drive and reduction ratio drive modes. The ring and planet gears are unloaded in high, thus avoiding vibration and wear commonly experienced when running locked up. The carrier defines an output member within which the planetary assembly is nested, thereby providing a shortened installation length for this type of unit. A shifting sleeve under the ring gear bearing support further shortens installation length. The sleeve includes a floating shift collar which does not disengage from the ring gear, thus eliminating one set of mesh points commonly encountered in this type of range selection.