Escalator safety insert
CA 1138365 A · Owner: James, Robert B. · Inventors: James, Robert B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided a safety insert for use on an escalator having moving steps, each of which defines at the top a plurality of upstanding, spaced-apart teeth separated by a plurality of grooves, the escalator including a side skirt closely adjacent the sides of the steps. the safety insert is of a resilient material and, is a one-piece, elongated member of constant section. The section includes a lower portion which is sized and shaped so as to be receivable snugly within the furthest sideward groove in a step, and also includes an upper portion which extends above the tops of the teeth when the lower portion is received in its groove. The upper portion projects obliquely upwardly and …
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 December 28, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 28, 1999.
- 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.