Patent Yard Sign in
Expired Canadian patentCanada

Control system and method for sensing and indicating neutral in a semi-automatic mechanical transmission system

CA 2017052 C · Owner: Eaton Corporation · Inventors: Genise, Thomas Alan

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A control system (104) for semi-automatically executing manually and/or automatically selected upshifts and downshifts of a mechanical transmission system (10) is provided. The control system includes a central processing unit (106) for receiving input signals indicative of transmission input shaft (16) and output shaft (90) speeds and from a driver control console (108) indicative of manual selection of upshifts or downshifts from a currently engaged gear ratio or into neutral and processing the same in accordance with predetermined logic rule to issue command output signals to a transmission actuator (112, 70, 96) to implement the selected shifts upon a manual caused torque reversal of …

Read the whole patent

Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed May 17, 1990 and granted October 25, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 17, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 17, 1990
GrantedOctober 25, 1994
Term endedMay 17, 2010
Patent numberCA 2017052 C
Classification (IPC)B60K17/06 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedMay 17, 1990Patent grantedOct 25, 1994Term endedMay 17, 2010

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.