Pneumatic impact mechanism
CA 1060666 A · Owner: Institut Gornogo Dela Sibirskogo Otdelenia Akademii Nauk Sssr · Inventors: Smolyanitsky, Boris N.; Klimashko, Vladimir V.; Kostylev, Alexandr D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pneumatic impact mechanism for driving rod-like members having a hollow cylindrical casing with a tail portion and a front end portion. The casing accommodates a reciprocating stepped hammer piston defining in the casing on the tail portion side, a variable volume rear end work chamber in permanent communication with a source of compressed air. The stepped hammer piston defines on the side of the, front end portion, a variable volume front end work chamber. The stepped hammer piston has a through-passing axial bore, and its small-diameter portion cooperates with the tail portion and has radial bores. There is provided a tubular guide member for receiving the rod-like member arranged …
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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 August 21, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 21, 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.