Refuse pelletizer
CA 1058445 A · Owner: Union Carbide Corporation · Inventors: Pelton, John F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus capable of producing pellets of compacted refuse having a density of at least 20 lbs./ft.3 comprising:, (1) a cylindrical tube having a compacted chamber whose length is shorter than the shortest critical length for the refuse to be pelletized with a feed port, in the side wall of the tube and a discharge port at the end of the tube, (2) a feed hopper communicating with the inlet port of the tube, (3) a reciprocating ram in the inlet end of the tube capable of exerting a pressure of at least 200 psi on each forward stroke, and, (4) a refuse flow restrictor in the tube in which the degree of restriction is controlled in response to changes in the ram pressure required to advance …
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 July 17, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 17, 1996.
- 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.