Offset arrangement for brake system proportionalization lever
CA 2203607 C · Owner: Westinghouse Air Brake Company · Inventors: Engle, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for applying proportional forces to at least two brake pads for application to rotating machinery. A member moveable parallel to a first axis has a first pivot connection having a second axis about perpendicular to the first axis a, second pivot connection having a third axis about perpendicular to the first axis and parallel to the second axis and a third pivot, connection having a fourth axis about perpendicular to the first second and third axes. A proportionalization lever has a length about parallel to the second and third axes which is pivotally, connected to the third pivot connection. It has a first end portion and a second end portion, with its pivot connection disposed …
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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 April 24, 1997 and granted January 16, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 24, 2019.
- 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.