Shear head of a dry-shaver comprising a shear foil which is clamped so as to be curved
CA 1236280 A · Owner: N.V.Philips'Gloeilampenfabrieken · Inventors: Schemmann, Hugo; Bukoschek, Romuald L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PHD 83.106 7 16.11.1983, ABSTRACT:, Shear head of a dry-shaver comorising a shear foil which is clamped so as to be curved. The invention relates to a shear head of vibrator dry-shaver comprising a shear foil (5) which is clamped so as to be curved and a cutter (7) which is adapted to be moved along the shear foil (5) and is likewise curved at the cutting edge (9) the shear foil (5) being, clamped inthe proximity of the end (6) of the cutting range of the cutter (7) and the tangents to the foil curvature at the clamping areas enclosing an acuate angle with each other. The curvature of the cutting edge (9) of the laminated cutter is adapted substantially over the whole cutting range to a …
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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 May 10, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 10, 2005.
- 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
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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.