Pipe connection particularly on composite pipes
CA 2074938 A1 · Owner: Olbrich, Kurt · Inventors: Olbrich, Kurt
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a pipe connection particularly for composite pipes (2), with a supporting sleeve (4) with at least one connection region (3) and an assigned pressure sleeve (6), the supporting sleeve (4) being provided with a shoulder (10) and with main, ring-shaped beads (12), the pressure sleeve (6) embracing the pipe end that is on the connection region (3) the pressure sleeve (6) in each case being constructed as a plastically deformable pressure element and this in the final state, pipe connection (1) brings about with ring-shaped, inwardly directed depressionregions (11 11', 11") a sealing immobilization of an associated pipe end. In order to provide a permanently tight …
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 29, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 29, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 29, 2013.
- 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.