US4771554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heel shoe construction
Assignee: Acushnet Co
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Filing: 1987-04-17
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Granted: 1988-09-20
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Expires: 2007-04-17
Abstract
Abstract A deflectable heel insert for use in the heel portion of a footwear. The heel insert includes at least one load-bearing plate which is deflectable under loads exerted by the heel of a shoe wearer. The plate is supported above a plate support surface as part of the heel or a base plate forming part of the laminate heel construction.
Inventors
- 👤 Bernd Hannemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:46
CPC Classifications
A; A43; A43B; A43B21/00; A43B21/24; A43B21/30; A43B21/26
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
135 words
A shoe heel construction comprising (a) a laminate shoe heel for supporting a shoe wearer's heel which shoe heel includes a surface-bearing heel portion; (b) a bottom support surface in the heel portion; (c) a heel insert located above the heel portion which insert in turn comprises (i) a deformable upper plate having curved side edges and a curved rear edge, said upper plate lying in a plane oriented to receive forces applied by a wearer's heel directly or indirectly; and (ii) two spaced-apart support means each spaced from said side edges of the upper plate and supporting said plate above the bottom surface of the heel portion; whereby upon application of a force by the wearer's heel on the upper plate, the upper plate is deformed about the support means toward said bottom surface.
Claim 2
Dependent Claim
135 words
A shoe heel construction comprising (a) a laminate shoe heel for supporting a shoe wearer's heel which shoe heel includes a surface-bearing heel portion; (b) a bottom support surface in the heel portion; (c) a heel insert located above the heel portion which insert in turn comprises (i) a deformable upper plate having curved side edges and a curved rear edge, said upper plate lying in a plane oriented to receive forces applied by a wearer's heel directly or indirectly; and (ii) two spaced-apart support means each spaced from said side edges of the upper plate and supporting said plate above the bottom surface of the heel portion; whereby upon application of a force by the wearer's heel on the upper plate, the upper plate is deformed about the support means toward said bottom surface.
Claim 3
Dependent Claim
29 words
The heel construction of claim 1 in which the insert includes, in addition, a lower plate at an angle positioned to the upper plate on the bottom support surface.
Claim 4
Dependent Claim
49 words
The heel construction of claim 2 in which the heel insert has in addition a wedge portion adjacent the intersection of upper and lower plates and in which the plates, wedge portion, and support means are integrally molded as a unit and thereafter formed as part of shoe heel.
Claim 5
Dependent Claim
27 words
The heel construction of claim 2 in which filler material is placed between the upper and lower plates around the side edges leaving an internal hollow chamber.
References Cited (Backward Citations)
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US2447603A
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Cited
US4638575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-20 | 1992-03-21 | 1992-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-20 | 1996-03-21 | 1996-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-20 | 2000-03-21 | 2000-09-20 | $7700.00 | Window Closed / Lapsed |