Swing frequency balancing of golf clubs
CA 1231734 A · Owner: Iso-Vibe Inc. · Inventors: Malloy, Dennis G.; Cook, Eric H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Golf clubs for an individual golfer are provided as a matched set wherein the vibration frequency of the irons are set to a first predetermined common frequency and that of the, woods to a second predetermined common frequency. The preferred swing vibration frequency comprises the natural vibration frequency of a club when the shaft is secured at the normal grip position, so as to simulate the natural vibration mode of the club when being swung by the golfer. In the case of the irons, the preferred frequency normally lies in the range of 280 to 325 cycles per minute (CPM), and in the case of the woods the selected swing vibration frequency normally lies in the range of 250-280 CPM. 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 January 19, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 19, 2005.
- 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.