Multi-handed milling cutter having indexable wedges and inserts
CA 2201717 C · Owner: Smith, William E. · Inventors: Shomaker, Robert L.; Vogel, Scott W.; Smith, William E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A milling cutter (1) for cutting a workpiece in both right- and left-handed rotary directions is provided that comprises a rotatable cutter body (3) having at least one pair of right- and left-handed insert seats (10a-h) disposed on its periphery, an indexable wedge (20) for each pair of right- and left-handed insert seats, and a mounting screw (22) for each of the wedges for securing the wedges in a clamping position with respect to a right- (12) or left-handed (14) insert seat. Each of the wedges may be used to secure an insert in the right- or left-handed seat of its respective seat pair by loosening or removing the mounting screw and turning the wedge 180·. Each , wedge (20) …
Read the whole patent
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
- Filed August 24, 1995 and granted May 23, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 24, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 24, 2017.
- 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.