Arrangement for feeding out fibre bundles with random fibre direction
CA 2175460 C · Owner: Sand, Kjell · Inventors: Sand, Kjell
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An arrangement for repeatedly feeding out fibre bundles with random fibre direction from a magazine roll of fibre thread (10) for, example in the production of flock preforms for products made of thermosetting resin. The arrangement comprises feed devices (11 12, 16, 17) for feeding the fibre threads from the magazine roll and cutting devices (18 19) for cutting the fibres into desired lengths. The feed devices comprise at least a first and a second pair of driven feed rollers (11 12 and 18, 19) placed in sequence, which feed rollers form nips for the fibre threads (10). A pneumatically driven fibre-ejecting device (20) placed downstream of the cutting device (18 19). The, first pair of …
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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 November 16, 1994 and granted September 17, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 16, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 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.