Forming of materials by extrusion
CA 1101166 A · Owner: United Kingdom Atomic Energy Authority · Inventors: Pardoe, John A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
of the Invention:, Apparatus for the continuous forming of material by extrusion and having a rotatable wheel member with an endless groove therein a, stationary shoe member overlying part of the length of the groove and having a portion which projects into said part of the length of the groove and is of a width substantially equal to that of the groove so as to form a passageway therewith a stationary abutment, member associated with the shoe member and projecting into the groove so as to block the downstream end of the passageway is, characterised by the improvement that the wheel member has one or more endless grooves in its periphery, arranged in parallel planes where more than one …
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 19, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 1998.
- 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.