Level lift and drop-off arrangement for a vacuum transfer mechanism
CA 2308045 C · Owner: Emery, Roy William · Inventors: Emery, Roy William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Lightweight moulded pulp trays or the like are attracted upward from transport on the upper side of, a first conveyor to contact with the underside of the lower run of the perforated conveyor belt of a, vacuum transfer mechanism by means of vacuum conditions transmitted through groups of, perforations in said perforated belt the location of said perforations in , each group and the timing of, vacuum conditions transmitted through each perforation in each group being arranged to lift the, forward and rearward proportions of each said product simultaneously with continuous support, during transport to a selected location for simultaneous release of vacuum support for said forward, and …
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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 May 31, 2000 and granted August 28, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 31, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 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.