Materials handling system
CA 1261776 A · Owner: Roberts, William M. · Inventors: Roberts, William M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A materials handling system primarily for use in tunnelling operations for transporting extracted material from a tunnel. The materials handling system comprises an overhead track means (19) from which are suspended an elongated conveying means (21) and a train of mine cars (27) or other transport units. The conveying means (21) conveys materials from a loading zone to a discharge zone. The suspension arrangement (29, 49) for the conveying means (21) and the train of mine cars (27) is such that one mine can be positioned at a materials receiving station (24) beneath the conveying means (21) for receiving materials discharging therefrom at the discharge zone (23) while the remaining mine …
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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 September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
- 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.