Rate controllable damping mechanism
CA 1308751 C · Owner: He Holdings, Inc. · Inventors: Elson, Robert J.; Ludwig, Howard R.; Yuan, Mark S.C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rate controllable damping mechanism (10) is disclosed. The mechanism includes a chamber disposed within a housing (15); an element (11) mounted for movement within the chamber; a damping material (13) preferably a low melting temperature metal alloy in the, chamber for preventing the movement of the element at a first temperature and for damping the movement of the element at a second temperature; and a heater (21) for selectively increasing the temperature of the damping material from the first temperature to the second temperature. Controlled damping is effectuated by heating the fluid material until it reaches a molten state at which the resultant fluid damps the movement of the …
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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 October 13, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 13, 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.