Patent Yard Sign in
Expired Canadian patentCanada

Air switching diverter valve

CA 1069398 A · Owner: General Motors Corporation · Inventors: Paddock, Gordon R.

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 --, An air switching diverter valve assembly for use with an internal combustion engine to control the flow of secondary air from an air pump, the air switching diverter valve assembly including a housing having a valve chamber therein with an inlet from the air pump to the valve chamber a first outlet to supply, air to the engine exhaust manifold a second outlet to supply, air either to the converter or to the atmosphere depending on, the intended use of the valve in an engine system and a pressure, valve controlled third outlet a valve movably positioned in the, valve chamber for control of flow out through either the first outlet or the second outlet, a …

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 January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJanuary 8, 1980
Term endedJanuary 8, 1997
Patent numberCA 1069398 A
Classification (IPC)F02M23/02 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedJan 8, 1980Term endedJan 8, 1997

Sources & verification

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