Patent Yard Sign in
Expired Canadian patentCanada

Engine valve train module

CA 1290634 C · Owner: General Motors Corporation · Inventors: Wirth, Rick C.

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

Abstract of the Disclosure A valve train module with rocker positioner and non-rotation guide has the rocker positioner and non-rotation guide in the form of a longitudinally extending U-shaped member with lateral outward extending rocker shaft supports adapted to retain a pair of rocker shafts in parallel spaced apart relationship to each other, with each of the rocker shafts pivotably supporting a plurality of rocker arms thereon actuated by hydraulic roller valve lifters operated by an engine driven camshaft for the valves in the cylinder head for a bank of cylinders the U-shaped, member having a base and parallel upright side walls with the base having bolt receiving apertures for its …

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

  • Granted October 15, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 15, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 29, 1987
GrantedOctober 15, 1991
Term endedOctober 15, 2008
Patent numberCA 1290634 C
Classification (IPC)F01L1/18 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedSep 29, 1987Patent grantedOct 15, 1991Term endedOct 15, 2008

Sources & verification

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