Vibration-absorber
CA 1302762 C · Owner: Schiel, Christian · Inventors: Schiel, Christian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A roll with a roll-shell rotating about a stationary central axis. A first chamber located in the interior of the roll is filled with fluid which transfers a hydraulic supporting force from the central axis to the roll-shell. The said first chamber is connected, through at least one choke-point to a second, chamber also located in the interior of the roll which is at all times only partly filled with fluid. Thus in, the event of a change in pressure in the first chamber the volume of liquid in the second chamber can change quickly. When therefore the roll-shell tends to vibrate, fluid flows back and forth through the choke point and, as a result of fluid-friction vibrational, energy is …
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 June 9, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 2009.
- 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.