Patent Yard Sign in
Expired Canadian patentCanada

Method and apparatus for the continuous casting of steel slabs

CA 1104323 A · Owner: Rossi, Irving · Inventors: Rossi, Irving

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

In processes for the continuous casting of steel slabs in which molten steel is poured continuously into the upper and of a mold having a curved mold passage and in which an embryo casting (in curved form) is withdrawn continuously from the lower end of the mold, it is known that as the steel solidifies, accumulations of impurities such as non-metallics, occur in the surface of lesser radius. It is specifically proposed to prevent the accumulation of such non-metallics at or near the surface of the casting which is of lesser radius which is a defect of slab casting produced on the standard curved mold continuous casting machines by maintaining such, surface in continuous contact with 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 July 7, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 6, 1978
GrantedJuly 7, 1981
Term endedJuly 7, 1998
Patent numberCA 1104323 A
Classification (IPC)B22D11/04 +1 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedJuly 6, 1978Patent grantedJuly 7, 1981Term endedJuly 7, 1998

Sources & verification

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