Vibration damper for ski
US4865345A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 19, 1988 |
| Grant date | Sep 12, 1989 |
| Priority date | — |
| Expiry date | Aug 19, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63C5/122
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A vibration damper is used in combinataion with a ski having an upper surface, a turned up front end, a rear end, and a central ski binding on the upper surface. The damper is between 5 cm and 20 cm long and comprises a viscoelastic sheet flatly engaging the upper surface immediately behind the front end, immediately ahead of the rear end, or immediately ahead of the ski binding and a damper plate with a high modulus of elasticity overlying the viscoelastic sheet. The plate is secured atop the sheet on the upper ski surface. The damper is between 10% and 20% of the length of the ski from the rear end of the ski, between 65% and 75% of the length of the ski from the rear end, and/or between 85% and 97% of the length of the ski from the rear end. A 2 m ski normally has a distance of 180 cm between the rear end of the ski and the start of the front upturned end of the ski.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.