Patent Yard Sign in
Expired Canadian patentCanada

Iron self-clean valve assembly

CA 1075589 A · Owner: General Electric Company · Inventors: Walker, Wendell 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

A steam iron is disclosed having a water tank steam generating soleplate, a guided water valve to start and stop water to the soleplate for steam generation and, a dumper valve in the bottom of the tank to suddenly empty the tank onto the soleplate to purge and clean the iron. To this conventional structure an improvement provides a unitary assembly of the dumper valve that includes a first tubular member with its upper end connected to the bottom of the tank and its lower end extended below the tank towards the soleplate. Cooperating with this is a second concentric tubular member telescopically disposed frictionally with the first member so the two tubes are pushed and locked together. …

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 April 15, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 15, 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—
GrantedApril 15, 1980
Term endedApril 15, 1997
Patent numberCA 1075589 A
Classification (IPC)D06F75/14 +1 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedApril 15, 1980Term endedApril 15, 1997

Sources & verification

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