Power tool
CA 2125556 C · Owner: Wave Craft Limited · Inventors: Fisher, Hugh Edward
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to portable power tool means intended to form part of a power tool or a conversion unit adapted to be fitted to the shaft of a power tool. The tool means includes a rotary cam member having an internal sinusoidal cam track in which cam followers of an output shaft are received. When the cam member rotates the shaft, is caused to partake of a lengthwise reciprocating movement suitable for application to a scraper bit or other tool kit such as a chisel. In an example of the invention the shaft, passes through a fixed bearing ring a slidable sleeve being, provided to control engagement of the shaft via a key member with portions of the ring or the cam member so as to …
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 December 18, 1992 and granted July 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 18, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 2014.
- 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.