Patent Yard Sign in
Expired Canadian patentCanada

Strip tension profile apparatus and associated method

CA 1270049 C · Owner: United Engineering, Inc. · Inventors: Ginzburg, Vladimir B.

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 rolling mill strip tension controlling apparatus may also function as a looper roll and shape meter and is provided with a plurality of generally aligned axially rotatable strip contacting rolls which are supported on rotating arms which in turn are rotated by actuators such as hydraulic cylinders. By monitoring actuator pressure and position a difference between the actual values for position or pressure and the predetermined values is used to provide through a servomechanism suitable corrective action on an individual roll by roll basis. A switch may be provided to permit the system to provide information from a computer to the servo system in a position mode or a pressure mode. 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 June 5, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 5, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 13, 1987
GrantedJune 5, 1990
Term endedJune 5, 2007
Patent numberCA 1270049 C
Classification (IPC)G01L5/08 +2 more

Timeline

Timeline From CIPO dates

1988199019921994199619982000200220042006Application filedJan 13, 1987Patent grantedJune 5, 1990Term endedJune 5, 2007

Sources & verification

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