Apparatus for resin-impregnation of fibers for filament winding
CA 2535149 C · Owner: Tse Industries, Inc. · Inventors: Raday, Robert M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A two roll impregnator for impregnating fiber reinforcement for use in filament winding operatives contains two abutting rolls at least one and preferably both having an elastomeric surface. Resin is constrained within a bath whose lower surfaces are defined by the abutting rollers and side dams. Fiber reinforcement is drawn over a first roller through the resin bath and between the closed nip of the abutting rollers where full impregnation is fostered, excess resin removed and the impregnated fiber degassed. Substantially dripless operation can be maintained.
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 February 2, 2006 and granted December 10, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 2, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.