Dust collection system
CA 1051866 A · Owner: Tymocko, Peter · Inventors: Tymocko, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dust collection system particularly useful in conjunction with hard rock drilling where a relatively large quantity of water is encountered in the drilling operation. Wetted rock particles and dust are collected, by air suction in a hood about the, drill rod and are carried through a venturi assisted by induced, air, into a first stage separator where the heavy cuttings are intercepted by a screen and discharged through a rubber valve. Light cuttings and a quantity of dust are intercepted by further screens and discharged through a rubber valve. Remaining dust is discharged from the first stage separator through a venturi assisted by induced air and delivered tangentially into the lower …
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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 April 3, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 3, 1996.
- 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.