Pipe cutting apparatus
CA 2176924 A1 · Owner: Sims, Peter James · Inventors: Sims, Peter James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A profiled end cut is applied to a length of stock pipe in an apparatus wherein the pipe (13) is rotated by a drive head (12) with a plasma cutter (81) moved axially on a trolley (14) in synchrony with rotation under control of a guidance system (3). The guidance system (3) follows a desired pattern to effect two adjoining end cuts in a single continuous operation. Pipe handling is by two sets of rollers a, support set (15) permitting rotation and a lifting set (104) to enable axial movement.
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
- Filed November 17, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 17, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 17, 2016.
- 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.