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. 23, 2002
Filed:
Sep. 07, 2000
Applicant:
Inventor:
Jonathan S. Rose, Laurinburg, NC (US);
Assignee:
ZF Meritor, LLC, Laurinburg, NC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D 2/304 ;
U.S. Cl.
CPC ...
F16D 2/304 ;
Abstract
An improved synchronizer uses a friction element to induce a frictional torque to rotating gear and collar elements. The rotational speeds of the gear and collar elements are electronically monitored by a transmission control unit. When the transmission control unit has determined that the rotational speeds of the gear and the collar are equalized, another control drives the collar to engage the gear.