Method of and apparatus for positioning the drive units of a plural drive escalator
CA 1163591 A · Owner: Westinghouse Electric Corporation · Inventors: Kappenhagen, George A.; Kraft, Joseph K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
49,677, ABSTRACT OF THE DISCLOSURE, A method of and apparatus, for determining the, direction of force in a moving escalator having a plurality of drive units coupled to an endless articulated, belt. The direction of force and the duration of such, force in a direction which indicates compression of the belt at each drive unit, is used to align and properly space the drive units for optimal load sharing.
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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 March 13, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 13, 2001.
- 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.