Inflatable cushion member for helical conveyor
CA 2211480 A1 · Owner: Carlyle, Allan M. · Inventors: Carlyle, Allan M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A helical trough conditioning conveyor has a cushion member thereunder to reduce externally transmitted reaction forces from vibrators on the conveyor and also to ensure that the gravity force does not restrict vibration of the conveyor. The conveyor has a coaxial vertical central post integral therewith a flexible, inflatable cushion member supporting the central post and having a base thereunder, a bracket for guiding the central post above the cushion member to permitting vertical movement of the central post, and at least one vibrator vibrating the conveyor on the central post above the cushion member.
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
- Filed July 24, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 24, 2019.
- 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.