Patent Yard Sign in
Expired Canadian patentCanada

Liner assembly for particle-throwing apparatus

CA 1214041 A · Owner: Kennecott Corporation · Inventors: Harper, Willard J.

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 wear liner assembly for lining front rear, end, and top walls of the guard housing of a blastant throwing wheel includes a plurality of liner plate members. The liner plate members have full-thickness edge portions which overlie or interfit with edge portions of adjacent ones of the liner plate members to define abrasive-tight labyrinth seals. A wrap-around corner joint connects end wall liner plate members with front and rear wall liner plate members and facilitates replacement of broken or worn liner plate members. The liner plate members and the joint structures are configured such that selected ones of the liner plate members can be fabricated using either …

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 November 18, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 18, 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.
FiledApril 8, 1983
GrantedNovember 18, 1986
Term endedNovember 18, 2003
Patent numberCA 1214041 A
Classification (IPC)B24C5/00 +1 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedApril 8, 1983Patent grantedNov 18, 1986Term endedNov 18, 2003

Sources & verification

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