Method and apparatus for forming a composite mat of directionally oriented lignocellulosic fibrous material
CA 1093780 A · Owner: Washington State University Research Foundation · Inventors: Talbott, John W.; Logan, James D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, The description describes a process and apparatus for forming a composite mat of directionally oriented lignocellulosic material in which elongated small pieces of the material are caused to descend individually as separate and discrete objects through an electric field orienting zone. A horizontal mat-support surface is moved immediately below the orienting zone to receive the descending pieces thereon with the elongated pieces overlapping each other to form a composite mat. An electric current is passed through the mat to produce a directional electric field immediately above the mat in which the electric field is directed in the direction of movement of the …
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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 January 20, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 20, 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.