Constant force load for an exercising apparatus
CA 2105950 C · Owner: Med*Ex Diagnostics Of Canada Inc. · Inventors: Davenport, Bruce; Mcarthur, James A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A constant force load for use in an exercising apparatus. The load includes a frame, an energy storage unit coupled to the frame and capable of exerting a force on an external element when storing energy therein a cam, for making the force transmitted from that exerted by the energy storage means constant, and force transmission means for changing the constant transmitted force. The load further includes an output force modifying assembly for making the output force constant.
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 September 10, 1993 and granted March 14, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 10, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 2015.
- 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.