Pipe core clean out system
CA 2312308 A1 · Owner: Gobeile, Joseph J. · Inventors: Peting, Robert G.; Gobeile, Joseph J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for removing waste material from the bell end of a cast iron pipe is disclosed. The system has both a cleaning assembly and an exhaust system. The cleaning assembly has a plurality of wire brushes mounted on a shaft. The shaft is, mounted on a cart that also supports a movable part of the exhaust system. The cart, moves the wire brushes and part of the movable part of the exhaust system into and out of, the bell end of the pipe. A motor on the cart rotates the shaft and brushes and a tilt, mechanism tilts the brushes down to contact the pipe. The pipe is rotated about its central, longitudinal axis as the brushes contact and clean the pipe. The rotating brushes clean, the sand …
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 June 20, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 20, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 20, 2022.
- 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.