Aerodynamic damper for suppressing galloping in overhead transmission lines
CA 1256958 A · Owner: Zaltsberg, Leib · Inventors: Zaltsberg, Leib
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An aerodynamic damper for reducing wind-induced motion espe-, cially galloping, of electrical transmission and distribution lines comprises a structure that in cross-section has a vane that is secured to the conductor by two arms. Each of the arms is formed on the inside partly by an arc of a circle substantially equal in radius to the radius of the circle enclosing the conductor. This arc extends for about 45 degrees on each of the arms. The remaining part for approximately 90, degrees, of each of the arms is formed by an arc of a circle of a radius smaller than that of the conductor and centered below and off the centerline of the conductor. Each of the arms is terminated by a lip which …
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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 July 4, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 4, 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.