Refractory fiber rope packing
CA 1268496 C · Owner: Jm Clipper Corporation · Inventors: Kotyuk, Bernard Lewis; Pallo, John Mathew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An asbestos-free rope packing comprising at least 3 strands of a twisted, ceramic fiber-containing paper wherein: (a) each of said strands contains at least one carrier insert; (b) said twisted ceramic fiber-containing paper contains about 3-9 wt.% of a suitable bonding agent;, (c) said paper has a thickness of about 0.015 to 0.045 inches; and, (d) said paper has a width of about 0.50 to 4.0 inches. Also a process for forming the rope packing from twisted strands of a ceramic fiber-containing paper is provided.
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
- Granted May 1, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 1, 2007.
- 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.