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:
Nov. 08, 2011
Filed:
Aug. 18, 2005
Richard Terrence Tamba, Castle Hill, AU;
Darren Lee Firth, West Pennant Hills, AU;
Richard Terrence Tamba, Castle Hill, AU;
Darren Lee Firth, West Pennant Hills, AU;
NT Consulting International PTY LTD, Castle Hill, AU;
Abstract
A torque converter having a lockup clutch or a coupling device, for selectively providing a mechanical connection between a drive unit and a drive train. The lockup clutch (C) or coupling device has a driving part connected to the drive unit and a driven part connected to the drive train. The torque converter also has a control system for applying a first pressure in a sense to cause frictional engagement between the driving part and the driven part and a second pressure in a sense to cause disengagement of the driving part and the driven part. A differential between the pressures is progressively controllable by the control system so as to control the relative positioning between the driven part and the driving part.