Self-regulating heating cable having radiation grafted jacket
CA 1212407 A · Owner: Eaton Corporation · Inventors: Blumer, Roger L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a method of radiation grafting a shape retaining jacket (32) made from an elastomeric polyurethane to an olefinic semi-conductive composition (30) electrically interconnecting at least two elongate spaced-apart conductors (28) to provide an improved flexible, elongate semi-conductive heating cable (8) that is provided with improved mechanical and electrical integrity and diminished imperfections and improved handling characteristics by reason of a substantially improved bond between the jacket (32) and the olefinic semi-conductive composition (30) arising from radiation grafting in a process that includes a means (14) of oxidizing the outer surface of the semi-conductive …
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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 October 7, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 7, 2003.
- 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.