A compact frame assembly for a press in a papermaking or boardmaking machine
CA 2176736 C · Owner: Bengtsson, Roland · Inventors: Bengtsson, Roland
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a compact frame assembly for a press having a top roll (5) and a bottom roll (4), the ends of which are supported in bearing housing members each bearing housing member (16) for the bottom roll (4) has a head portion (53) of substantially T-shaped cross section and each bearing housing member, (17) for the top roll (5) has a foot portion (54) of inverted substantially Tshaped cross section. The foot portion stands on the head portion and two, sturdy channel bars (34, 35) are pivotally mounted laterally of the head portionand the foot portion one on each side. The channel bars may be swung into clamping engagement with the cross bars (55) of the two tees to connect the head portion (53) …
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 November 29, 1994 and granted December 1, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 29, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 29, 2016.
- 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.