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US 5,732,481 AGranted
Adjustable height insole system
AssigneeCreative Labs, Inc.
InventorBen Farhad
Life of this patent
Estimating the term…
Abstract
A variable-height insole system for a shoe includes a soft-flexible insole and a plurality of heel supporting members in the shoe under the insole. The heel supporting members generally increase in hardness in a downward direction. Selectable lift inserts insertable between the heel supporting members have the greatest hardness.
Claims4
A variable-height insole system for a shoe, comprising:
- a) an insole of soft, flexible material;
- b) a buffer member of substantially stiffer, rubberlike material fixedly attached to the underside of said insole in the heel area thereof;
- c) a comfort member of rubberlike material underlying said buffer member and extending less far forward along said insole than said buffer member, said comfort member being tapered in a forward direction, and the material of said comfort member being substantially harder than the material of said buffer member;
- d) a bottom member of a material similar to the material of said comfort member underlying said comfort member and extending forwardly farther than said buffer and comfort members into the arch area of said shoe;
- and
- e) at least one lift insert selectively insertable between said comfort member and said bottom member in the heel area of said shoe, said lift inserts being substantially harder than said comfort member and bottom member.
3 more elements
Dependencies are inferred from the claim text.