Method and apparatus for introduction of glass filament strand onto feed roller of chopped glass filament strands manufacturing system
CA 1097920 A · Owner: Nitto Boseki Co, Ltd. · Inventors: Fujita, Toshihito; Nakazawa, Koji; Kikuchi, Toshiaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a system for manufacturing chopped strands of glass filaments wherein a multiplicity of glass filaments extruded through orifices in the bottom of at least two spinning furnaces and applied with a sizing agent are collected to form at least two strands which are, brought into contact with the circumferential surface of a feed roller through a predetermined angle so as to be drawn and attenuated by frictional force exerted by the circumferential surface of the feed roller while the strands are cut into chopped strands of a predetermined length with a cutter roller in contact with the feed roller, an auxiliary feed roller is disposed adjacent to one end portion of and in axial alignment …
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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 March 24, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 24, 1998.
- 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
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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.