Air-blasting cartridge
CA 1296848 C · Owner: Makeevsky Inzhenerno-Stroitelny Institut · Inventors: Tjurin, Jury I.; Slez, Leonid G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An air-blasting cartridge comprises a housing subdivided into an inlet chamber and a discharge chamber by a piston arranged along its longitudinal axis. The inlet chamber communicates with a source of compressed air through an air admission tube which runs through an axial port of the piston. The discharge chamber communicates with the inlet chamber through an annular gap 'between the air admission tube and the piston. The discharge chamber is adapted to communicate with the surrounding atmosphere at the instant of its discharge. The area of the piston end surface facing the discharge chamber is greater than the area of the piston end surface facing the inlet chamber but is smaller than the …
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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 March 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 2009.
- 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.