Exercise board having central mounting with multi-level adjustable spacer
US5810703A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 1, 1996 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Aug 1, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2022/0033
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A wobble board is provided with the capability of varying the height between its sphere section and board. The wobble board includes a board with centrally protruding and downward extending bolt. A sphere section having legs, preferably four in number threads to the bolt. In between the sphere section and board underside, a variable height spacer is utilized. Preferably, the variable height spacer is provided with at least two sets of leg receiving notches. These sets of leg receiving notches are each at differing heights relative to the board. At the same time, the position of the notches within each set is complimentary in position to the legs. In operation, height between the sphere section and board is changed by unthreading the sphere section relative to the board without release of the variable height spacer between the sphere section and board. Unthreading continues until leg access to one set of the variable height notches occurs. Thereafter, the legs and spacer are tightened on the threaded attachment until the sphere section at the legs registers to the notches of one set on the spacer. Tightening continues until the sphere section, spacer, and board are locked in a unita…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.