Joining insulated elongate conduit members
CA 1269409 C · Owner: Van Dijck, Frans Seraphina Joseph · Inventors: Van Dijck, Frans Seraphina Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Joining Insulated Elongate Conduit Members The invention relates to joining insulated elongate conduit members, such as thermally insulated pipes. A pipe is provided with thermal insulation in, which, at an end of the pipe, there is an annular recess such that an end portion of the pipe is exposed to allow access for connection thereto. To make a connection, a recoverable connecting collar is positioned at least partially within the recess, and allowed to recover into gripping engagement with the exposed portion of the pipe. The invention obviates the necessity of reinsulating the joint region of an insulated pipe.
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 May 22, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 22, 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.