Roller for continuous belt press
CA 2085689 A1 · Owner: Gerhardt, Klaus · Inventors: Gerhardt, Klaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
18771, Abstract of the Disclosure, A belt press has a frame having horizontally extending and vertically spaced upper and lower plates defining a horizontally extending gap, respective upper and lower sets of drums rotatable on the frame, respective upper and lower endless belts spanned over the respective upper and lower sets of drums and each having a working stretch lying between the plates and re-, spective upper and lower sets of tubular rollers engaged between the working stretches and the respective plates. Respective upper and lower sets of rods traverse the respective rollers and are connected together as upper and lower endless chains. A drive connected to the drums advances the …
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 December 17, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 17, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 17, 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.