Dynamic energy absorber
CA 1291175 C · Owner: Allied Corporation · Inventors: Brooks, Mark Allen; Fallis, Robert Edward; Daly, Paul Desmond
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device comprising an armature movable in a first and a second direction; an obstruction for providing a motion stop in at least the first direction; an electromagnet and return spring for moving the armature in the first and second directions; and a damper attached to and movable with the armature for dissipating energy from the collision of the armature with the motion stop.
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 October 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 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.