Method, a device and a means for carrying out wire bolting of a rock
CA 1264230 C · Owner: Oy Tampella Ab · Inventors: Leppanen, Jarmo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for carrying out wire bolting of a rock in which method a hole is drilled in a rock and a wire, piece shorter than the hole is pushed into the hole. In order to simplify the insertion means, the wire piece is pushed into the hole by means of the same wire whereoff the wire piece has been cut. A wire bolting device developed for effecting the method comprises a cutting means mounted on the carrier of the device between a wire feeding mechanism and a resilient guide pipe attached to a head guide. A mounting space is provided beside the cutting means for the mounting of a pushing support between the ends of the cut wire. (Figure 3)
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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 January 9, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 9, 2007.
- 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.