US4520580A — Skate boot insert

Claim 1

Independent Claim 95 words

An insert placed within an ice skate boot or the like comprising in combination; a blank having a top layer with an upper surface generally contoured to conform to a plantar surface of a person's foot, a lower layer having a bottom face provided with a recess means extending substantially from the metatarsal area to the calcaneal area of the foot, said recess means centrally disposed over a blade of an ice skate, said recess means including first and second recess areas wherein said second recess area is disposed concentrically within said first recess area.

Claim 2

Dependent Claim 95 words

An insert placed within an ice skate boot or the like comprising in combination; a blank having a top layer with an upper surface generally contoured to conform to a plantar surface of a person's foot, a lower layer having a bottom face provided with a recess means extending substantially from the metatarsal area to the calcaneal area of the foot, said recess means centrally disposed over a blade of an ice skate, said recess means including first and second recess areas wherein said second recess area is disposed concentrically within said first recess area.

Claim 3

Dependent Claim 29 words

The device of claim 1 wherein said recess means includes a curved trailing edge proximate to the calcaneal area, and a rectangulr forward portion proximate to the metatarsal area.

Claim 4

Dependent Claim 30 words

The device of claim 1 wherein said recess means is provided at a lateral extremity thereof with a sharply defined side edge intermediate said trailing edge and said forward portion.

Claim 5

Dependent Claim 23 words

The device of claim 3 in which said sharply defined side edge is provided on both laterally extreme sides of said recess means.

Claim 6

Dependent Claim 24 words

The device of claim 4 in which marginal portions are provided having a curved contour extending upwardly to said upper surface from said edges.

Claim 7

Dependent Claim 56 words

The device of claim 5 in which a peripheral lip extends around the heel calcaneal area of the foot, formed from the conjunction of said marginal portions with a periphery of said top layer whereby deformation of said recess means provides corresponding cupping motion of said lip to more tightly grasp the heel of the foot.

Claim 8

Dependent Claim 25 words

The device of claim 6 wherein an intermediate layer is provided between said top and lower layers said intermediate layer formed of a resilient material.

Claim 9

Dependent Claim 24 words

The device of claim 7 in which said lower layer is formed from a foam adapted to return to an original configuration when unstressed.

Claim 10

Dependent Claim 20 words

The device of claim 8 in which said top layer is formed from an abrasion resistant and perspiration absorbent material.

Claim 11

Dependent Claim 100 words

An orthotic appliance comprising in combination: a multi-layered insert including at least a top layer and a bottom layer and configured to generally conform to a plantar surface of a person's foot, the insert further including an upwardly-curved peripheral lip circumscribing a heel area of the foot, and the bottom layer having a substantially longitudinal keyway-shaped downwardly opening indentation formed therein substantially from the metatarsal head area into the calcaneal region, whereby the insert will deform due to the person's weight substantially over the indentation, thereby causing the peripheral lip to cup inwardly for improved gripping of the person's heel.

Claim 12

Dependent Claim 100 words

An orthotic appliance comprising in combination: a multi-layered insert including at least a top layer and a bottom layer and configured to generally conform to a plantar surface of a person's foot, the insert further including an upwardly-curved peripheral lip circumscribing a heel area of the foot, and the bottom layer having a substantially longitudinal keyway-shaped downwardly opening indentation formed therein substantially from the metatarsal head area into the calcaneal region, whereby the insert will deform due to the person's weight substantially over the indentation, thereby causing the peripheral lip to cup inwardly for improved gripping of the person's heel.

Claim 13

Dependent Claim 49 words

The appliance of claim 10 wherein said indentation comprises a first recess, and wherein a second recess is concentric to and disposed within and therefor dimensioned smaller than said first recess to provide said second recess with the ability to respond initially to loads and said first recess thereafter.

Claim 14

Dependent Claim 45 words

The appliance of claim 11 wherein both said first and second recesses are substantially keyway shaped with an arcuate trailing edge underlying the heel, a leading edge transverse to the foot's longitudinal axis and side edges extending from said leading edge to said trailing edge.

Claim 15

Dependent Claim 28 words

The appliance of claim 12 wherein areas outboard said first recess adjacent said side edges and trailing edge curve upwardly in an arc, terminating in said peripheral lip.

Claim 16

Dependent Claim 28 words

The appliance of claim 13 wherein areas outboard said first recess adjacent said side edges and trailing edge curve upwardly in an arc, terminating in a peripheral lip.

Claim 17

Independent Claim 180 words

A device for controlling articulation of a foot relative to the foot's associated leg at its ankle comprising in combination: a blank having a top surface configured to generally conform to a plantar surface of the foot, a zone of deformation within said blank responsive to a load imposed on said blank wherein degrees of blank deformation correlate to magnitude of load imposed, whereby deformation at said zone flexes said blank at its lateral edges to grasp the foot more firmly and urge the foot relative to its leg to orient its ankle into a neutral axis position, wherein said zone of deformation includes a recess means having a first recess in said blank underlying a central calcaneal area of the foot and terminating at a metatarsal head area whereby deformation of said blank at said recess means promulgates enhanced heel cupping, wherein said recess means includes a second recess concentric to, disposed within and therefor dimensioned smaller than said first recess to provide said second recess with the ability to respond initially to loads and said first recess thereafter.

Claim 18

Independent Claim 180 words

A device for controlling articulation of a foot relative to the foot's associated leg at its ankle comprising in combination: a blank having a top surface configured to generally conform to a plantar surface of the foot, a zone of deformation within said blank responsive to a load imposed on said blank wherein degrees of blank deformation correlate to magnitude of load imposed, whereby deformation at said zone flexes said blank at its lateral edges to grasp the foot more firmly and urge the foot relative to its leg to orient its ankle into a neutral axis position, wherein said zone of deformation includes a recess means having a first recess in said blank underlying a central calcaneal area of the foot and terminating at a metatarsal head area whereby deformation of said blank at said recess means promulgates enhanced heel cupping, wherein said recess means includes a second recess concentric to, disposed within and therefor dimensioned smaller than said first recess to provide said second recess with the ability to respond initially to loads and said first recess thereafter.

Claim 19

Dependent Claim 43 words

The device of claim 15 wherein said first and second recesses are substantially keyway shaped with an arcuate trailing edge underlying the heel, a leading edge transverse to the foot's longitudinal axis and side edges extending from said leading to said trailing edge.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1988-06-03	1988-12-03	1989-06-04	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1992-06-03	1992-12-03	1993-06-04	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1996-06-03	1996-12-03	1997-06-04	$7700.00	Window Closed / Lapsed

Skate boot insert

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