Apparatus for manufacturing laminated cores
CA 1076331 A · Owner: Mitsui Mfg. Co. · Inventors: Mitsui, Yoshiaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A laminated core manufacture wherein a plurality of apertured laminations are provided with projections formed from the portion of the sheet from which the apertures are formed to define an interlocked laminated stack. The first of the laminations is provided with a through aperture with the projection being eliminated so as to define a nonprojecting surface in the first of the laminations of the stack with the projec-, tions of each of the subsequent laminations extending into and being interlocked with the preceding lamination in the aperture thereof. The punching apparatus for providing the apertures and projections is selectively operated to define either the formed aperture and …
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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 29, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 29, 1997.
- 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.