Method for sub-zoning an elevator group
CA 1298671 C · Owner: Ekholm, Ralf · Inventors: Ekholm, Ralf; Partanen-Jokela, Riitta
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for increasing the transportation capacity of elevators in a building involving dividing the elevators (2-7) into two or more groups each comprising, one or more elevators in such manner that in certain, loading situations the groups will temporarily serve different zones (11, 12) of the building (1). Upward peak traffic conditions are detected and the boundaries between zones (11, 12) are determined and maintained by the steps which include:, (a) detecting by a peak traffic condition mainly on the, basis of elevator loading time and/or the number of people arriving in an elevator lobby (9) of the building (1). (b) calculating an initial optimal zone boundary value mainly on 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 April 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 7, 2009.
- 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.