Deceleration and pressure sensitive proportioning valve
CA 1287856 C · Owner: Allied-Signal, Inc. · Inventors: Gaiser, Robert F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A proportioning valve assembly (10 130) in a, housing (12) is pressure responsive to control the flow of fluid to a wheel brake cylinder. The proportioning valve assembly (10, 130) includes a movable retainer (50) coupled with a differential piston (30) for movement therewith, a stationary retainer (70) mounted by the housing (12) and surrounding a second piston (80) having an enlarged diameter portion (88) that defines with an end (11, 16) of the housing (12) a chamber (90). The second piston (80) has a poppet (84) extending into an interior opening (54) of the movable retainer (50) the, movable retainer (50) supporting a seal (56) disposed about the extension (82) of the second piston …
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 August 20, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 20, 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.