Vibration damping device and method for a road planer and the like
CA 1262835 C · Owner: Lewis, Roger L. · Inventors: Lewis, Roger L.; Norland, Richard S.; Jones, Leon D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Invention, A vibration damper for a road planer and the like with a main frame and a sub-frame movably connected thereto. A prime mover and a tool are mounted on the sub-frame which, includes frame members forming compartments adapted to receive lead shot particles therein. The particles absorb vibrational energy from the prime mover and the tool. A method of damping vibration is disclosed wherein vibrational energy is transmitted to the lead shot particles which vibrate and generate heat. The heat is dissipated through the frame members to the atmosphere.
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 November 14, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 14, 2006.
- 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.