US4920663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Athletic shoe, particularly a tennis shoe, and process for producing such a shoe
Assignee: Puma SE
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Filing: 1989-06-20
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Granted: 1990-05-01
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Expires: 2009-06-20
Abstract
Abstract An athletic shoe, particularly a tennis shoe, with wear-resistant parts provided in the area of the outsole to increase the wear resistance of the sole material. The wear resistance of the outsole, particularly in the toe area or in other peripheral areas of the outsole, is significantly increased and yet a sufficient braking effect is maintained by the material of the outsole or of the edge of the outsole. This is achieved by molding parts made of one of such materials as an oxide ceramic, metal carbide, metal nitride or hard metal into the outsole in an upwardly directed edge (3) of toe area (4) of outsole (2) or by subsequently inserting them into the outsole in such a way that the outer surface of the parts ends approximately flush with an outer side of the edge surface of outsole.
Inventors
- 👤 Udo Flemming
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:39
CPC Classifications
A; A43; A43B; A43B5/00; A43B5/10; A43B13/00; A43B13/14; A43B13/22; A43B13/24
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
88 words
An athletic shoe with wear-resistant parts provided in an area of an outsole to increase the wear resistance of the sole, wherein the wear-resistant parts are made of a material selected from the group consisting of oxide ceramics, metal carbides and metal nitrides, and are embedded into the outsole in an upwardly directed edge in at least a toe area of the outsole in such a way that an outer surface of the wear-resistant parts ends approximately flush with an outer surface of the edge of the outsole.
Claim 2
Dependent Claim
88 words
An athletic shoe with wear-resistant parts provided in an area of an outsole to increase the wear resistance of the sole, wherein the wear-resistant parts are made of a material selected from the group consisting of oxide ceramics, metal carbides and metal nitrides, and are embedded into the outsole in an upwardly directed edge in at least a toe area of the outsole in such a way that an outer surface of the wear-resistant parts ends approximately flush with an outer surface of the edge of the outsole.
Claim 3
Dependent Claim
18 words
An athletic shoe according to claim 1, wherein the upwardly directed edge is molded about the wear-resistant parts.
Claim 4
Dependent Claim
24 words
An athletic shoe according to claim 1, wherein wear-resistant parts are also provided in the edge of the outsole in an inner ball area.
Claim 5
Dependent Claim
23 words
An athletic shoe according to claim 3, wherein wear-resistant parts are also provided in the edge of the outsole in a heel area.
Claim 6
Dependent Claim
24 words
An athletic shoe according to claim 4, wherein wear-resistant parts are also provided in the edge of the outsole in an outer ball area.
Claim 7
Dependent Claim
23 words
An athletic shoe according to claim 1, wherein wear-resistant parts are also provided in the edge of the outsole in a heel area.
Claim 8
Dependent Claim
24 words
An athletic shoe according to claim 1, wherein wear-resistant parts are also provided in the edge of the outsole in an outer ball area.
Claim 9
Dependent Claim
22 words
An athletic shoe according to claim 1, wherein the wear-resistant parts are fastened to a support that is embedded into the outsole.
Claim 10
Dependent Claim
21 words
An athletic shoe according to claim 1, wherein the wear-resistant parts are approximately as thick as the edge of the outsole.
Claim 11
Dependent Claim
13 words
An athletic shoe according to claim 1, wherein the wear-resistant parts are disk-shaped.
Claim 12
Dependent Claim
14 words
An athletic shoe according to claim 10, wherein disk-shaped parts have a recessed neck.
Claim 13
Dependent Claim
31 words
An athletic shoe according to claim 11, wherein the disk-shaped parts have front disk and back disk segments, the front disk segment having a greater diameter than the back disk segment.
Claim 14
Dependent Claim
16 words
An athletic shoe according to claim 8, wherein the wear-resistant parts are buttoned into the support.
Claim 15
Dependent Claim
34 words
An athletic shoe according to claim 13, wherein the support has openings, for insertion of the wear-resistant parts, which have a plurality of inwardly protruding lugs which engage a neck of the wear-resistant parts.
Claim 16
Dependent Claim
34 words
An athletic shoe according to claim 8, wherein the support is provided with at least two arranging elements for positioning the support in a mold for producing at least the edge of the outsole.
Claim 17
Dependent Claim
28 words
An athletic shoe according to claim 15, wherein parts of the arrangement elements protrude from the edge of the outsole and are removable for finishing of the outsole.
Claim 18
Dependent Claim
33 words
An athletic shoe according to claim 1, wherein wear-resistant parts are provided with at least one of a roughened surface, a fissured surface and a perforation for facilitating securement thereof within the outsole.
Claim 19
Dependent Claim
26 words
An athletic shoe according to claim 1, wherein the wear-resistant parts are provided with at least one hole, which is penetrated by material of the outsole.
Claim 20
Dependent Claim
99 words
Process for producing a sole for an athletic shoe wherein wear-resistant parts are engaged within a strip-shaped support provided with arranging elements which are thinner than the wear-resistant parts, wherein the support with arranging elements is then inserted into recesses of an at least two-part mold after which the mold is closed and at least an edge of an outsole is produced by at least one of an injection molding and a casting process, and wherein the mold is opened, the edge of the outsole removed from the mold and protruding parts of the arranging elements then cut off.
Claim 21
Dependent Claim
99 words
Process for producing a sole for an athletic shoe wherein wear-resistant parts are engaged within a strip-shaped support provided with arranging elements which are thinner than the wear-resistant parts, wherein the support with arranging elements is then inserted into recesses of an at least two-part mold after which the mold is closed and at least an edge of an outsole is produced by at least one of an injection molding and a casting process, and wherein the mold is opened, the edge of the outsole removed from the mold and protruding parts of the arranging elements then cut off.
Claim 22
Dependent Claim
17 words
Process according to claim 19, wherein the wear-resistant parts are treated with a chloride-based primer before molding.
Claim 23
Dependent Claim
16 words
Process according to claim 19, wherein the wear-resistant parts are treated with an adhesive before molding.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-30 | 1993-10-30 | 1994-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-30 | 1997-10-30 | 1998-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-30 | 2001-10-30 | 2002-05-01 | $7700.00 | Window Closed / Lapsed |