Headbox
CA 2079807 A1 · Owner: Kinzler, Gernot · Inventors: Kinzler, Gernot
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Headbox, Abstract, The nozzle type stock channel (10) (with outlet gap 9) of the headbox isdefined by two flow guide walls (11 and 12). Arranged on the discharge end of the upper flow guide wall 12 is a movable profile bar (13) to which attach numerous adjustments spindles (14) which are arranged distributed across the machine width. Each adjustment spindle (14) has on its end away from the proffile bar (13) a spindle drive (20). Provided on the upper end of each spindle (14) is a measuring device (15) serving the determination of the local position of the profile bar (13). Said measuring device (15) has a measuring housing (17) and a measuring element (29) movable in it. The latter is …
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 January 31, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 31, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 31, 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.