Completely fabricated pipe sleeve assembly
CA 2132572 A1 · Owner: Romac Industries, Inc. · Inventors: Kirchner, Mark W.; Eaton, Delbert H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
By using fabrication procedures, which do not use any casting, a pipe sleeve assembly, or a pipe sleeve assembly with additional components, is made for installation on a pipeline. When the pipeline is made of plastic pipes and this pipe sleeve assembly is fully tightened, there is acceptable limited radial deflection of the cross-sectional portions of the plastic pipe being sealed by the surrounding gasket held in place by the assembled fabricated parts and the bolt and nut fasteners. On opposite sides of each separating gap of the sleeve side bar and, lug units are welded to the sleeve. Between opposite lugs independently removable bolt and nut fasteners are secured. In one embodiment, …
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 September 21, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 21, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 21, 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.