Patent Yard Sign in
Expired Canadian patentCanada

Angular shaped steel rod layer forming and stacking with occasional layer inversion

CA 1052403 A · Owner: Toshin Seiko Kabushiki Kaisha · Inventors: Uchida, Tsutomu; Nomura, Keiichi; Nagashima, Makoto

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

An apparatus for automatically stacking steel shapes preferably, steel angles, comprises an endless conveyor running obliquely towards the traveling direction a, member provided above the conveyor at a proper distance to form a passage, this member serving to prevent steel shapes from overlapping, a stand-by stop lever for keeping steel shapes stopped at an intermediate part of the conveyor, assorting stop levers disposed so as to protect from a part of the passage upstream from the stand-by stop lever, a take-out stop member for stopping the steel shapes being conveyed upon retraction of the stand-by stop lever, a stacking lifter located downstream of the conveyor with a certain distance …

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 10, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 1996.
  • 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 10, 1979
Term endedApril 10, 1996
Patent numberCA 1052403 A
Classification (IPC)B65G57/04 +1 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedApril 10, 1979Term endedApril 10, 1996

Sources & verification

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