Production of composite structures using lightweight low cost matrix extender materials
CA 2115740 A1 · Owner: Sumple, Michael · Inventors: Chapman, Michael; Sumple, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process and apparatus are provided for injecting dry lightweight particulate material into a stream of catalyzed resin. The particulate material is stored in a fluidizing tank (62). The fluidized dry particles are conveyed from the tank (62) under a controlled vacuum created by a low pressure venturi pump (84) through an anti-static conveying tube (112) to an adjustable delivery tube (36) which terminates with a nozzle (52). The nozzle (52) delivers a low velocity controlled spray pattern (50) which coincides with the stream of pressurized resin. Within the venturi pump (84) and opposite to the main low pressure, low volume inlet (102) is , a second pressurized inlet (100). This inlet …
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 August 13, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 13, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 2014.
- 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.