Single drive vibrational conveyor with vibrational motion altering phase control and method of determining optimal conveyance speeds therewith
CA 2208160 C · Owner: Wucherpfennig, Fredrick D. · Inventors: Burgess, Ralph D. Jr.; Wucherpfennig, Fredrick D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Single drive conveyor apparatus (10) including an elongated material-conveying conveyor having vibration-generating means (V) connected to one end thereof and vibrating the same substantially only in a direction parallel with the longitudinal centroidal axis thereof and including two pairs of parallel vibration--generating shafts (21,22 and 28,32) each pair having axial , displacement relative to the other and each shaft of each pair carrying eccentrically mounted weights (35,37 and 29,33) generating equal forces and rotating in opposite directions said , pairs of shafts rotating at different speeds and each pair carrying a pair of equal force-generating and eccentric weights …
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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 December 20, 1995 and granted May 1, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 20, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 2017.
- 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
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.