Process and apparatus suitable for effecting steel band guidance
CA 2038751 C · Owner: Maschinenfabrik J. Dieffenbacher Gmbh & Co. · Inventors: Bielfeldt, Friedrich Bernd
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a process for adjusting the alignment of circulating press bands in a continuously operating press and a press adapted to permit such alignment. The press comprises a press bed and a press top a pair of, flexible steel bands defining a press gap therebetween and circulating about said press bed and press top around drive and deflection rollers associated with said press bed and said press top, said press gap including a high pressure zone. The flexible steel bands are aligned by horizontally pivoting the press top and the associated drive and deflection rollers through an angle .alpha. about a central vertical axis while temporarily reducing the pressure in the high …
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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 March 21, 1991 and granted June 2, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 21, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 21, 2013.
- 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.