Flexure-compensated roll
CA 2080398 A1 · Owner: Schiel, Christian · Inventors: Schiel, Christian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a flexure-compensated roll comprising a longitudinal support (2 and 32) extending therethrough and at least one longitudinal pressing shoe extending along the longitudinal axis of the longitudinal support (2 and 32) for the rotatable casing (1 and 31) of the roll which casing has an elongated piston (4 and 33) or piston part extending along the longitudinal axis of the longitudinal support (2 and 32) and has sealing means between it and the stationary longitudinal support (2 and 32), said shoe being adapted radially externally to the internal diameter of the roll casing and has a middle pressure chamber (middle chamber 12 and 40), which is connected with the pressure …
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 October 13, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 13, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 13, 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.