Drive-unit located within the step-belt of an escalator
CA 1059461 A · Owner: O And K Orenstein And Koppel Aktiengesellschaft · Inventors: Hofling, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved drive-unit arranged within the step-belt of an excalator, the drive-unit consisting of an electric motor tran-, smission, and hand-rail drive, the drive-shaft for the transmission also serving as the main drive-shaft for the said step-belt. In one known drive arrangement for escalators the drive for the, hand-rail, arranged within the step-belt is combined into a unit, with the main transmission in order to achieve a compact drive. In this arrangement the hand-rail driving wheels are connected to the drive by means of cardan shafts. This known arrangement has the advantage of taking up less space and being more reliable than conventional drives. However, in view of the space …
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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 July 31, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 31, 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.
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.