Control apparatus for elevators
CA 1204888 A · Owner: Mitsubishi Denki Kabushiki Kaisha · Inventors: Tsuji, Shintaro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A control apparatus for elevators in which one cycle of a fluctuating demand is divided into a plurality of sections, the demand in each section or a service condition value of the elevators for the demand is measured the demand or the service condition value of the corresponding section is estimated from the measured value and, decision means is comprised to compare the estimated value and the measured value obtained anew and to decide the compared result, so that when the compared result has been decided to fail in satisfying a reference condition cages, are controlled with a value set separately from the estimated value or a value separately calculated for estimation. This brings forth …
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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 May 20, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 20, 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.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.