US4463505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sole
Assignee: ROYCE IMPORTING Corp A CORPORATION OF CT
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Filing: 1982-09-27
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Granted: 1984-08-07
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Expires: 2002-09-27
Abstract
Abstract An improved sole for footwear comprising an insole unit having an axially extending surface and a peripheral rib projecting downwardly from the surface for stitching the insole to the upper of the footwear, a midsole attached to the insole, the insole and midsole defining the top and bottom surfaces of a cavity, the cavity being bounded about its periphery by the rib, and an outsole attached to the midsole, the improvement comprising an orthotic element mounted in the cavity, the orthotic element comprising an axially extending flexible support layer.
Inventors
- 👤 Gary P. Duclos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:25
CPC Classifications
A; A43; A43B; A43B13/00; A43B13/02; A43B13/12
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
147 words
In a sole for footwear comprising: an insole unit having an axially extending surface and a peripheral rib projecting downwardly from said surface for stitching said insole unit to the upper of the footwear, a midsole attached to said insole unit, said insole unit and midsole defining the top and bottom surfaces of a cavity therebetween, said cavity being bounded about its periphery by said rib, and an outsole attached to said midsole, the improvement comprising an orthotic element mounted in said cavity, said orthotic element comprising an axially extending flexible support layer, a metatarsal support comprising a raised area in said flexible support layer, said raised area being anatomically shaped to conform to the entire metatarsal area of the foot, and a heel cradle comprising a depressed area in said support layer, said depressed area being anatomically shaped to conform to the heel of the foot.
Claim 2
Dependent Claim
147 words
In a sole for footwear comprising: an insole unit having an axially extending surface and a peripheral rib projecting downwardly from said surface for stitching said insole unit to the upper of the footwear, a midsole attached to said insole unit, said insole unit and midsole defining the top and bottom surfaces of a cavity therebetween, said cavity being bounded about its periphery by said rib, and an outsole attached to said midsole, the improvement comprising an orthotic element mounted in said cavity, said orthotic element comprising an axially extending flexible support layer, a metatarsal support comprising a raised area in said flexible support layer, said raised area being anatomically shaped to conform to the entire metatarsal area of the foot, and a heel cradle comprising a depressed area in said support layer, said depressed area being anatomically shaped to conform to the heel of the foot.
Claim 3
Dependent Claim
22 words
The improved sole of claim 1 wherein said raised area rises gradually from its periphery to a maximum height at its center.
Claim 4
Dependent Claim
21 words
The improved sole of claim 2 wherein the maximum height of said raised area is on the order of 1/32 inch.
Claim 5
Dependent Claim
12 words
The improved sole of claim 1 wherein said support layer is PVC.
Claim 6
Dependent Claim
21 words
The improved sole of claim 1 wherein said orthotic element further comprises, a rigid shank mounted on said flexible support layer.
Claim 7
Dependent Claim
19 words
The improved sole of claim 5 wherein said support layer further comprises a cavity adapted to receive said shank.
Claim 8
Dependent Claim
13 words
The improved sole of claim 5 wherein said shank is tempered stainless steel.
Claim 9
Dependent Claim
136 words
A sole for footwear comprising: an insole unit, said insole unit comprising an axially extending insole board, a peripheral ply-rib projecting downwardly from said insole board, an insole support layer overlying said insole board, an insole cover layer overlying said insole support, and a cup attached to said insole board in the heel area thereof, said cup having a foam heel element and a fabric heel cover overlying said foam element, a midsole attached to said insole unit, said midsole and insole unit defining the top and bottom surfaces of a cavity therebetween, said cavity being bounded on its periphery by said ply-rib, an orthotic element mounted in said cavity, said element comprising an axially extending flexible support layer, and a rigid shank mounted on said flexible support layer, and an outsole attached to said midsole.
Claim 10
Dependent Claim
136 words
A sole for footwear comprising: an insole unit, said insole unit comprising an axially extending insole board, a peripheral ply-rib projecting downwardly from said insole board, an insole support layer overlying said insole board, an insole cover layer overlying said insole support, and a cup attached to said insole board in the heel area thereof, said cup having a foam heel element and a fabric heel cover overlying said foam element, a midsole attached to said insole unit, said midsole and insole unit defining the top and bottom surfaces of a cavity therebetween, said cavity being bounded on its periphery by said ply-rib, an orthotic element mounted in said cavity, said element comprising an axially extending flexible support layer, and a rigid shank mounted on said flexible support layer, and an outsole attached to said midsole.
Claim 11
Dependent Claim
39 words
The sole of claim 8 wherein said insole board is Texon compressed paper board, said insole support layer is EVA Sport Foam closed cell blown rubber material, and said insole cover layer is Thermaflex K three-dimensional woven nylon material.
Claim 12
Dependent Claim
15 words
The sole of claim 8 or 9 wherein said midsole is No. 4 iron rubber.
Claim 13
Dependent Claim
18 words
The sole of claim 8, wherein said support layer is PVC and said shank is tempered stainless steel.
Claim 14
Dependent Claim
11 words
The sole of claim 11 wherein said outsole is blown EVA.
Claim 15
Dependent Claim
22 words
The sole of claim 10 wherein said insole board has transversely extending flexibility slashes cut into the underside of its metatarsal area.
Claim 16
Dependent Claim
14 words
The sole of claim 8 wherein said midsole has perforations in its metatarsal area.
Claim 17
Dependent Claim
19 words
The sole of claim 14 wherein said perforations are rectangular in shape and are oriented in transversely staggered rows.
Claim 18
Dependent Claim
19 words
The sole of claim 8 wherein said flexible support layer further comprises a cavity to receive said rigid shank.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-07 | 1988-02-06 | 1988-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-07 | 1992-02-06 | 1992-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-07 | 1996-02-06 | 1996-08-07 | $7700.00 | Window Closed / Lapsed |