Apparatus and method for reducing vehicle tires
CA 2178326 C · Owner: Garb Oil & Power Corporation · Inventors: Brewer, John C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for reducing to particles tread portions and beaded side wall portions of vehicle tires (19) particularly extra large vehicle, tires (19) or for preparing such vehicle tires (19) for recapping comprises a tire holder assembly (10), having a paired set of dual jacks (163 carried by opposite ends, respectively or elongate, rigid. tire clamping frames (14). and a rotary cutter blade assembly (13) made up, of chisel type offset from one another to provide a helically oriented series of such cutting blades (13). An optional but important feature of the invention is the progressive cutting of the tire (19) in a cryogenic atmosphere which freezes exposed surfaces of the tire and the, …
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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 April 4, 1994 and granted July 6, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 4, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 4, 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.