Apparatus for electroerosive piercing of holes in workpieces
CA 1308176 C · Owner: Institut Elektroniki Imeni U.A.Arifova Akademii Nauk Uzbexkoi Ssr · Inventors: Vakhidov, Khaidar A.; Abdukarimov, Erkin T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, An apparatus for electroerosive piercing of holes in workpieces comprising an electrode tool in the form of a rod placed with a clearance in a shell and projecting therefrom, a means for feeding and rotating the rod mechanically connected to a means for reciprocating the shell relative to the rod . The means for reciprocating the shell relative to the rod is fashioned as a hydraulic cylinder a piston of which has the shell rigidly secured thereto at the side of the workpice and at least one of cavities ("a" or "b") of the hydraulic cylinder is connected to a system for feeding and discharging a working fluid, the piston having at least one passage communicable with the interior of …
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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 September 29, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 29, 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.