Back to results
US 5,495,136 AGranted
Illuminating system
AssigneeMarpole International Inc.
InventorsLee Chiang, William R. Ratcliffe
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeMarpole International Inc.
InventorsLee Chiang, William R. Ratcliffe
Estimating the term…
A member made from a suitable material such as a polyurethane epoxy designed to withstand impact against an object is provided as a support member. For example, the member may constitute an insert disposed on or in the heel of a shoe but a wide variety of other applications are possible. A suitable member such as a piezoelectric member is disposed on the support member to produce a signal when the support member is impacted against the object or when the impact is released. This signal is amplified by an amplifier which is powered by a suitable source such as a battery. The amplified signals are introduced to a light emitting member such as a light emitting diode which provides an illuminated indication of the impact of the support member against the object. A member such as a resistance may be disposed in the circuit with the battery and the amplifier to limit the current flow through the amplifier during the times that the piezoelectric member is energized.
In a combination for providing a visual display,
In combination,
Dependencies are inferred from the claim text.