Fluorescent tube crusher with particulate separation and recovery
CA 2116231 A1 · Owner: Perry, Timothy J. · Inventors: Bryant,Frederick J.; Perry, Timothy J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A digesting system for disposal and separation of the component materials, including potentially toxic materials from used, fluorescent tubes (17), which breaks up fluorescent tubes (17) with a rotating fracture blade (15) while passing a critical amount of stripping air through the fracture zone (23) and countercurrently through a countercurrent flow zone (31) with the fractured glass. The small dust and powder particulates separated from the glass by the countercurrent air stream are then separated from the air stream by a sequence including an initial cyclone (41) or the like from which particulate material collected may be removed during continued operation and by subsequent fine …
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 23, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 23, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 23, 2013.
- 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.