Spark erosion machining apparatus
CA 1303145 C · Owner: Schneider, Rudolf · Inventors: Schneider, Rudolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a spark erosion machining apparatus comprising an electrode changing mechanism. The apparatus comprises a tub intended to receive the dielectric liquid and having a front wall which can be opened like a door. A frame displaceable with regard to its height position is fixed at the inner surface of the door-like front wall. Two pairs of levers are pivotally mounted on the frame. The free ends of the levers comprise a transverse beam with a plurality of perpendicularly protruding electrode supporting members. The transverse beams with the electrode supporting members can be pivoted from a rest position where they are near to the front wall of the tub into an operating …
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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 June 9, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 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.