Dynamometer
CA 2116844 C · Owner: Galbraith, Peter Afton · Inventors: Galbraith, Peter Afton
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An absorption dynamometer includes a rotor (12) and restrained stator means (14), and in use of which the rotor energy is substantially dissipated as heat in the stator cleans. A cooling arrangement (16) for the stator means comprises passage means (62 63), for coolant fluid. This passage means extends at least, in part spirally, from a fluid intake port (70) at or adjacent a first end of the stator means to an oultet port (71) at or adjacent a second end of the stator means. Also disclosed is a vibration absorption means (25) and flexible coupler means (84, 85) to dampen the vibrations of a power tool being tested.
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 July 27, 1992 and granted November 25, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 27, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 27, 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.