US4658516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
TAP sole construction
Assignee: Timberland Co
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Filing: 1986-03-19
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Granted: 1987-04-21
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Expires: 2006-03-19
Abstract
Abstract The shoe of the invention consists of a thermally-moldable material which is secured in a cut-out region of the shoe sole.
Inventors
- 👤 Guy Beck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:57
CPC Classifications
B; B29; B29D; B29D35/00; B29D35/06; B29D35/061; A; A43; A43B; A43B13/00; A43B13/14; A43B13/16; A43C; A43C15/00; A43C15/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
148 words
A shoe sole comprising a blank having an insert of thermally-moldable material secured in and filling a cut-out area int he forward portion of the blank, said insert extending over a major part of the forward portion of the sole area and having lateral dimensions much greater than the thickness thereof, the edge of said cut-out area being bevelled on the shoe-side of the blank toward the outer edge of the blank at a small angle relative to the shoe-side surface of the blank, and the insert having a lip around its perimeter on the street-side of the blank and a tapered edge around its perimeter on the shoe-side of the blank, said tapered edge lying upon the bevelled portion of the edge of the cut-out area, said edge of said cut-out area cooperating with said tapered edge and said lip to secure said insert to said blank.
Claim 2
Dependent Claim
148 words
A shoe sole comprising a blank having an insert of thermally-moldable material secured in and filling a cut-out area int he forward portion of the blank, said insert extending over a major part of the forward portion of the sole area and having lateral dimensions much greater than the thickness thereof, the edge of said cut-out area being bevelled on the shoe-side of the blank toward the outer edge of the blank at a small angle relative to the shoe-side surface of the blank, and the insert having a lip around its perimeter on the street-side of the blank and a tapered edge around its perimeter on the shoe-side of the blank, said tapered edge lying upon the bevelled portion of the edge of the cut-out area, said edge of said cut-out area cooperating with said tapered edge and said lip to secure said insert to said blank.
Claim 3
Dependent Claim
14 words
The sole of claim 1 wheein said insert is injection-molded into said cut-out area.
Claim 4
Dependent Claim
19 words
The sole of claim 1, wherein said tapered edge is joined to said bevelled area by means of adhesive.
Claim 5
Dependent Claim
11 words
The sole of claim 1, wherein said thermally-moldable material comprises polyurethane.
Claim 6
Dependent Claim
14 words
The sole of claim 1, wherein the outer edge of said lip is bevelled.
Claim 7
Independent Claim
131 words
A method for manufacturing a shoe sole comprising: cutting out an area of a sole blank in the forward region thereof, said cut-out area extending over a major part of the forward region of the sole; bevelling the edge defining said cut-out area on the shoe side of said sole, and applying an adhesive to the bevelled edge; and injection molding a thermoplastic material into said cut out area in such a way as to form an insert having a lip around its perimeter on the street side of the sole, and a tapered edge around its perimeter on the shoe side of the sole, the tapered edge lying upon the bevelled portion of the edge of the cut-out area, said insert having lateral dimensions much greater than the thickness thereof.
Claim 8
Independent Claim
131 words
A method for manufacturing a shoe sole comprising: cutting out an area of a sole blank in the forward region thereof, said cut-out area extending over a major part of the forward region of the sole; bevelling the edge defining said cut-out area on the shoe side of said sole, and applying an adhesive to the bevelled edge; and injection molding a thermoplastic material into said cut out area in such a way as to form an insert having a lip around its perimeter on the street side of the sole, and a tapered edge around its perimeter on the shoe side of the sole, the tapered edge lying upon the bevelled portion of the edge of the cut-out area, said insert having lateral dimensions much greater than the thickness thereof.
Claim 9
Dependent Claim
47 words
The sole of claim 1 wherein said lip and said tapered edge define a groove around the perimeter of said insert which secures said insert in said cut-out area without stitching, said tapered edge preventing an uncomfortable bulge at the intersection of the blank and the insert.
Claim 10
Dependent Claim
46 words
The sole of claim 1 wherein said tapered edge is tapered at less than 8° and said bevelled portion of the cut-out area is bevelled at less than 4° so that said insert is secured in said cut-out area without causing a bulge in said sole.
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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) | 1990-04-20 | 1990-10-20 | 1991-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-20 | 1994-10-20 | 1995-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-20 | 1998-10-20 | 1999-04-21 | $7700.00 | Window Closed / Lapsed |