Patent Yard Sign in
Expired Canadian patentCanada

Leaky bucket for supervision in industrial processes

CA 2129903 C · Owner: Lecorney, David Colin · Inventors: Lecorney, David Colin

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 method for reacting to disturbances that occur in an industrial process includes the steps of extracting information from the industrial process as to occurrence of normal events and occurrence of disturbances transmitting, the extracted information to a disturbance filter which includes a leaky bucket having a defined disturbance step and floor and ceiling height for the disturbances and triggering, an alarm when occurrence of disturbances in the industrial process falls without the defined disturbance step and floor and ceiling height. As mentioned above the present, invention also provides a rigorous method of setting parameters within a leaky bucket algorithm.

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

  • Filed March 5, 1993 and granted May 15, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 5, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 5, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 5, 1993
GrantedMay 15, 2001
Term endedMarch 5, 2013
Patent numberCA 2129903 C
Classification (IPC)G08B23/00 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedMarch 5, 1993Patent grantedMay 15, 2001Term endedMarch 5, 2013

Sources & verification

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