Device for equalizing and controlling the pressure in at least two pressure volumes, particularly in pneumatic tires of a vehicle
CA 1097179 A · Owner: Hansruedi, Etter-Felix · Inventors: Hansruedi, Etter-Felix
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The device serves for equalizing and controlling the pressure in at least two pressure volumes particularly in, pneumatic tires of a vehicle. A pressure chamber provided with a lockable line is closed by a valve member so as to be imperious to the medium. A bias spring urges the valve number towards a valve seat into which the passageway of a pressure volume opens. The active free area of the valve member facing towards the pressure chamber is larger than the cross-sectional area of the orifice of the connecting passageway. In order to keep the valve member closed also when the pressure in the pressure volume increases above the nominal pressure, the passageways of all the pressure volumes …
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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
- Granted March 10, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 1998.
- 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.