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US Patent 6095547 - Active piezoelectric damper for a snow ski or snowboard
US Patent Issued on August 1, 2000
Estimated Patent Expiration Date:
July 6, 2018Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
July 6, 2018Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractA board, such as a ski or snowboard, that includes a piezoelectric damper. A sensor such as a piece of piezoelectric material is located on the body of the board such that, as the board vibrates or deforms, the piezoelectric sensor is also deformed. As the piezoelectric sensor deforms, it produces an electrical signal that is provided to a control circuit. The control circuit receives the electrical signal and generates a control signal of proportional amplitude and frequency, but an inverse waveform to the sensed vibration. The control signal causes a piezoelectric damper to stiffen and resist deformation of the board, thus damping the vibration. The sensed signal may also be stored within a memory device and subsequently downloaded to provide a skier profile for analysis.Other References
| InventorsAssigneeApplicationNo. 110629 filed on 07/06/1998US Classes:280/602, With camber or flexibility control280/607, With foot supporting plate or portion280/610Laminated or synthetic materialField of Search280/602, With camber or flexibility control280/601, Skis280/607, With foot supporting plate or portion280/610, Laminated or synthetic material280/809SKI OR SKATE APPLIANCE OR ATTACHMENTExaminersPrimary: Johnson, Brian L.Assistant: Avery, Bridget Attorney, Agent or FirmUS Patent References2258046, 2539224, 3260531, 3537717, 3644919, 3774923, 3894437, 4288088, Brake assembly for skateboardIssued on: 09/08/1981 Inventor: Harrison4291894, Electrical ski boot release Issued on: 09/29/1981 Inventor: D'Antonio , et al.4300786, Snow ski with adjustable camber Issued on: 11/17/1981 Inventor: Alley4377297, Ski, particularly Alpine ski Issued on: 03/22/1983 Inventor: Staufer4383702, Safety binding for a ski Issued on: 05/17/1983 Inventor: Salomon4436321, Electrically releasable safety 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Foreign Patent References
International ClassA63C 005/07 |
