Treadmill exerciser
CA 1293746 C · Owner: Stairmaster Sports/Medical Products, L.P. · Inventors: Potts, Lanny L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A treadmill exerciser involving an upwardly and rearwardly sloping treadmill having a plurality of steps which are activated by the weight of a person "walking" up them. The tread portion and the riser portion of each step are connected at both ends by hinges to each other and to endless chains which permit the steps to move or fold around end sprockets as the steps move from an upper inclined course of the chains to a lower inclined return course and vice, versa. A speed control mechanism driven by one of the chains, employs a gyroscopic flywheel which cooperates with a non-rotatable but axially slidable brake drum to provide even, continuous step movement and a …
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
- Granted December 31, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 31, 2008.
- 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.