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US 5,207,704 AGranted
Posture board
OwnerMary Shieldsinventor
Life of this patent
Estimating the term…
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OwnerMary Shieldsinventor
Estimating the term…
The posture board according to the present invention is contoured to a spinal mating shape. The board comprises an upper back supporting portion having a leading edge and a lower back supporting portion terminating in a trailing edge. The board has a longitudinally extending sine wave configuration with an up curve at the lower back supporting portion. The board further has a side to side concave curvature defining a trough like center region and upwardly turned outside edges. The center region along at least part of the upper back supporting portion and at the trailing edge is in contact with the supporting surface on which the posture board is used. The up curve defines a gap beneath the center region along the lower back supporting portion and the supporting surface. The outside edges of the board are more flexible than the center region to allow some edge flattening while the center region is much less flexible to prevent lengthwise full flattening of the board at the center region under weight of a user such that the board provides vibratory feedback responsive to body vibrations given off by the user.
A posture board contoured to a spinal mating shape comprising an upper back supporting portion having a leading edge and a lower back supporting portion terminating in a trailing edge, said board having a longitudinally extending sine wave configuration with an up curve at said lower back supporting portion and a side to side concave curvature defining a center region with upwardly turned outside edges, said enter region, along at least part of said upper back supporting portion and at said trailing edge being in contact with a supporting surface on which said posture board is used, said up curve defining a gap between said center region along said lower back supporting portion and such supporting surface, said outside edges being relatively flexible to allow downward bending of said edges, said center region being less flexible than said edges and preventing lengthwise flattening of said board under weight of a user such that said board provides vibratory feedback responsive to body vibrations given off by the user, said posture board having a lesser side to side concave curvature at said leading edge than at said trailing edge of said board.
Dependencies are inferred from the claim text.