US4497123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shoe-sole and method for making the same
Assignee: PATOFLEX Corp A CORP OF ARIZONA
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Filing: 1982-03-04
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Granted: 1985-02-05
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Expires: 2002-03-04
Abstract
Abstract A shoe sole and a method of manufacture thereof, the shoe sole consisting of a plastic material having a fastening means embedded therein for fastening the sole to the shoe uppers, the fastening means being formed by sprayed die castings of unfoamed plastic material.
Inventors
- 👤 Johann Ehrlich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:05
CPC Classifications
B; B29; B29D; B29D35/00; B29D35/12; B29D35/122; A; A43; A43B; A43B13/00; A43B13/02; A43B13/04; A43B13/28
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
110 words
A shoe sole construction comprising a sole made of a plastic material, and fastening means embedded in said sole for securing a shoe sole upper thereto, said fastening means comprising a die casting made by sprayed die casting from an unfoamed plastic material, and die casting extending substantially transversely across said sole from one side edge thereof to the opposite side edge thereof and having outwardly facing openings therein which communicate with the exterior of said sole through the opposite side edges thereof for securing said upper thereof so that it abuts said side edges, said die casting further having anchoring means for anchoring said die casting in said sole.
Claim 2
Dependent Claim
110 words
A shoe sole construction comprising a sole made of a plastic material, and fastening means embedded in said sole for securing a shoe sole upper thereto, said fastening means comprising a die casting made by sprayed die casting from an unfoamed plastic material, and die casting extending substantially transversely across said sole from one side edge thereof to the opposite side edge thereof and having outwardly facing openings therein which communicate with the exterior of said sole through the opposite side edges thereof for securing said upper thereof so that it abuts said side edges, said die casting further having anchoring means for anchoring said die casting in said sole.
Claim 3
Dependent Claim
42 words
A shoe-sole as claimed in claim 1, wherein said sprayed die castings are of a plastic material having mechanical and physical properties similar to those of the plastic material of the sole when said sole plastic material is in an unfoamed state.
Claim 4
Dependent Claim
34 words
A shoe-sole as claimed in claim 1, wherein the sprayed die castings are embedded into a foamed soft-polyurethane and consist of soft polymers having a hardness of 36 shore A to 98 shore D.
Claim 5
Dependent Claim
34 words
A shoe-sole as claimed in claim 1, wherein the sprayed die castings are embedded into a foamed soft-polyurethane and consist of soft elastomers having a hardness of 36 shore A to 98 shore D.
Claim 6
Dependent Claim
30 words
A shoe-sole as claimed in claim 4, wherein the sprayed die castings embedded into soft-polyurethane consist of injectable caoutchouc having a hardness of 36 shore A to 98 shore D.
Claim 7
Dependent Claim
35 words
A shoe-sole as claimed in claim 1, wherein the sprayed die castings are embedded into foamed semihard polyurethane and consist of injectable harder polymers having a hardness of 65 shore A to 88 shore D.
Claim 8
Dependent Claim
35 words
A shoe-sole as claimed in claim 1, wherein the sprayed die castings are embedded into foamed semihard polyurethane and consist of injectable harder elastomers having a hardness of 65 shore A to 88 shore D.
Claim 9
Dependent Claim
21 words
A shoe-sole as claimed in claim 6, wherein the sprayed die castings embedded into foamed semihard polyurethane consist of a polyamide.
Claim 10
Dependent Claim
16 words
A shoe-sole as claimed in claim 1, wherein the sprayed die castings have a rounded cross-section.
Claim 11
Dependent Claim
16 words
A shoe-sole as claimed in claim 9, wherein the sprayed die castings have a circular cross-section.
Claim 12
Dependent Claim
16 words
A shoe-sole as claimed in claim 9, wherein the sprayed die castings have an oval-shaped cross-section.
Claim 13
Dependent Claim
55 words
A shoe-sole as claimed in claim 1, wherein the sprayed die casting comprises socket means arranged within the range of the side edges of the sole, said socket means defining said openings, and longitudinal strap means extending across said sole interconnecting at least the socket means which are opposite to each other in axial direction.
Claim 14
Dependent Claim
23 words
A shoe-sole as claimed in claim 1, wherein the sprayed die castings comprise tube means extending over the whole width of the sole.
Claim 15
Dependent Claim
28 words
A shoe-sole as claimed in claim 11, further comprising transverse strap means interconnecting the socket means and the longitudinal strap means attached thereto to form a grating structure.
Claim 16
Dependent Claim
21 words
A shoe-sole as claimed in claim 13, further comprising transverse strap means joining the tube means to form a grating structure.
Claim 17
Dependent Claim
20 words
A shoe-sole as claimed in claim 12, wherein said longitudinal strap means have a smaller cross-section than said socket means.
Claim 18
Dependent Claim
20 words
A shoe-sole as claimed in claim 14, wherein said transverse strap means have a smaller cross-section than said socket means.
Claim 19
Dependent Claim
20 words
A shoe-sole as claimed in claim 14, wherein said transverse strap means have a smaller cross-section than said tube means.
Claim 20
Dependent Claim
24 words
A shoe-sole as claimed in claim 1, wherein said sprayed die castings project by a small amount from the lateral surfaces of the sole.
Claim 21
Dependent Claim
25 words
A shoe-sole as claimed in claim 14 or 15, wherein said grating structure comprises stud means projecting from the bottom side of the grating structure.
Claim 22
Dependent Claim
38 words
A shoe-sole as claimed in claim 12, further comprising pin means inserted into said socket means and having a diameter corresponding to the inner diameter of said socket means or exceeding the same only by a small amount.
Claim 23
Dependent Claim
38 words
A shoe-sole as claimed in claim 13, further comprising pin means inserted into said tube means and having a diameter corresponding to the inner diameter of said tube means or exceeding the same only by a small amount.
Claim 24
Dependent Claim
29 words
A shoe-sole as claimed in claim 21, wherein said pin means comprise screw thread means and said socket means comprise internal thread means for receiving said screw thread means.
Claim 25
Dependent Claim
29 words
A shoe-sole as claimed in claim 22, wherein said pin means comprise screw thread means and said tube means comprise internal thread means for receiving said screw thread means.
Claim 26
Dependent Claim
26 words
A shoe-sole as claimed in claim 21, wherein said pin comprise barb means and said socket means comprise internal projections for cooperation with said barb means.
Claim 27
Dependent Claim
27 words
A shoe-sole as claimed in claim 22, wherein said pin means comprise barb means and said tube means comprise internal projections for cooperation with said barb means.
Claim 28
Dependent Claim
18 words
A shoe-sole as claimed in claim 21 or 22, wherein said pin means are made from plastic material.
Claim 29
Dependent Claim
20 words
A shoe-sole as claimed in claim 27, wherein said pin means are made from a plastic material being dyed through.
Claim 30
Dependent Claim
25 words
In the shoe sole construction of claim 1, said anchor means projecting outwardly in said sole in angular relation to the axes of said openings.
Claim 31
Independent Claim
116 words
A method for making a shoe-sole, comprising the following steps: (a) molding of a sprayed die casting so that it is dimensioned to extend across said sole from one side edge thereof to the opposite side edge thereof; (b) arranging said sprayed die casting in a mold corresponding to the sole to be made in a spacing from the bottom of the mold; (c) inserting a plastic material to be foamed into the mold so that said die casting is embedded in said plastic material and extends between the opposite side edges thereof for securing a sole upper to said sole; and (d) after solidifying of the plastic material, releasing of the sole from the mold.
Claim 32
Independent Claim
116 words
A method for making a shoe-sole, comprising the following steps: (a) molding of a sprayed die casting so that it is dimensioned to extend across said sole from one side edge thereof to the opposite side edge thereof; (b) arranging said sprayed die casting in a mold corresponding to the sole to be made in a spacing from the bottom of the mold; (c) inserting a plastic material to be foamed into the mold so that said die casting is embedded in said plastic material and extends between the opposite side edges thereof for securing a sole upper to said sole; and (d) after solidifying of the plastic material, releasing of the sole from the mold.
Claim 33
Dependent Claim
27 words
A method as claimed in claim 30, comprising the further step of treating said sprayed die castings with a parting compound before their insertion into the mold.
Claim 34
Dependent Claim
53 words
In the method of claim 30, said step of molding sprayed die casting further characterized as molding sprayed die castings from an unfoamed plastic material, said sprayed die castings having outwardly facing openings and projections which extend outwardly relative to the axes of said openings for anchoring said die castings in a 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) | 1988-02-05 | 1988-08-06 | 1989-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-05 | 1992-08-06 | 1993-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-05 | 1996-08-06 | 1997-02-05 | $7700.00 | Window Closed / Lapsed |