Conveyor construction having side rails with double longitudinal slots
CA 2074063 C · Owner: Dorner Mfg. Corp. · Inventors: Hansen, Kenneth N.; O'Brien, Terrence E.; Hosch, Michael A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A conveyor constructing having a pair of spaced parallel side rails that support a conveyor belt each of, the side rails is provided with a pair of vertically spaced, parallel, longitudinal slots. Each slot is generally T-shaped in cross section and has an open side facing laterally outward of the side rail. The open side of the lower slot is offset laterally outward from the open side of the upper slot of the side rail. End units are associated with each end of the conveyor and each end unit includes a pair of spaced side plates having a belt supporting spindle journalled between the side plates. Slide blocks are mounted in the ends of the slots in the side rail and the side plates are …
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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 July 16, 1992 and granted September 1, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 16, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 16, 2014.
- 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.