Apparatus for manufacturing endless needled paper machine felts
CA 1279983 C · Owner: Morrison Berkshire, Inc. · Inventors: Stanislaw, Peter P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for manufacturing endless needled, longitudinally oriented, paper machine felts having a predetermined width formed from a plurality of overlapping loops of a narrower width strip is disclosed. The apparatus includes a first needling mechanism having a working width at least equal to the predetermined width, a feeder to feed a strip of batt from a web to the first needling mechanism means to, reciprocate the web throughout the working width of the first needling mechanism, a second needling mechanism having a working width at least equal to the working width of the first needling mechanism and including a plurality of driven, adjacent needling units each of which is actuable …
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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
- Granted February 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 12, 2008.
- 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.