Molded insulation products and their manufacture using continuous-filament wool
CA 2271015 A1 · Owner: Owens Corning · Inventors: Kirk, Simon R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process of forming a thermal insulation layer (34) includes advancing a multifilament strand of continuous filaments (12) through a nozzle (10) to separate the filaments (16) from each other to form a continuous-filament wool (14), applying a binder to the filaments placing a charge comprising the wool , in a mold (32) and molding the charge to form an insulation layer (34). In a preferred embodiment, the charge (30) further comprises a container such as a , bag (24) formed from a polymer film. The filaments are preferably prepared from a high-strength, high-temperature resistant glass material. The molded wool is advantageously used to manufacture products such as catalytic , …
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
- Filed December 1, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 1, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 2019.
- 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.