Method and apparatus for removing pipe coatings
CA 1257178 A · Owner: Van Voskuilen, Frans · Inventors: Van Voskuilen, Dirk F.; Van Voskuilen, Frans
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Bituminous or other coatings are removed from a pipe surface by directing one or more powerful water jets against such pipe surface. The water jets have a pressure of between 300 and 600 bars, are directed against the pipe surface under an acute angle, when seen in circumferential direction of the pipe and are moved in longitudinal as well as in circumferential direction along the pipe surface.
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 July 11, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 11, 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.