Patent Yard Sign in
Expired Canadian patentCanada

Slide gate of a casting ladle or similar container

CA 1201271 A · Owner: Toshiba Ceramics Co. Ltd. · Inventors: Ito, Kazuo; Nishio, Takumi

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

Slide gate of a casting ladle or similar container having an outlet aperture for discharging a molten metal accommodated therein, in which the slide gate comprises a slide plate horizontally, slidably disposed at a lower end of the outlet aperture between a first position to block the discharge of the molten metal from the outlet aperture and a second position to allow the discharge of the molten metal from the outlet aperture, the slide plate having a recess extending into the upper face thereof in an area of the upper face which is in alignment with the lower end of the outlet aperture when the slide plate is set at the first position; a gas-permeable refractory member disposed in the …

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 March 4, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 4, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 7, 1984
GrantedMarch 4, 1986
Term endedMarch 4, 2003
Patent numberCA 1201271 A
Classification (IPC)B22D41/42

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedFeb 7, 1984Patent grantedMarch 4, 1986Term endedMarch 4, 2003

Sources & verification

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