US4843741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Custom insert with a reinforced heel portion
Assignee: Autry Industries Inc
•
Filing: 1988-11-23
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Granted: 1989-07-04
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Expires: 2008-11-23
Abstract
Abstract A midsole (12 and 24) for an activewear shoe (10) comprises a removable insert (12) and a peripheral member (24). The peripheral member (24) is joined to the perimeter of an upper surface (20) of an outsole (16). A plurality of independent cushioning elements (40) depend from a base member (38) of insert (12), and are sized in order to conform to the depth of peripheral member (24). A window (14) is formed through the peripheral member (24) and/or the outsole (16) to allow observation of the insert (12) from exterior the shoe (10). To reinforce the peripheral member (24) proximate the window (14), a row of stiffened cushioning elements (62) is formed on the insert (12). The stiffened elements (62) have a higher durometer reading than the remaining elements (40) and are formed during an injection molding process. A transverse reinforcing segment (31) may be provided to inhibit movement of the insert (12) within the shoe (10). If desired, the segment (31) and the elements (40) may be formed with cavities therein to lighten the weight of the shoe (10).
Inventors
- 👤 Lin Yung-Mao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:01
CPC Classifications
A; A43; A43B; A43B7/00; A43B7/14; A43B7/1405; A43B7/1455; A43B7/146; A43B1/00; A43B1/0072; A43B13/00; A43B13/14; A43B13/18; A43B13/181; A43B13/184; A43B17/00; A43B17/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
95 words
An improved shoe having a removable insert for a midsole receptacle, wherein the improvement comprises: a plurality of cushioning elements depending from a lower surface of the insert, said cushioning elements providing cushioning support to the foot of the wearer, said cushioning elements having distinctive visual design aspects; an observation window formed of transparent plastic through a portion of the shoe for observing said visual design aspects of the insert; and a plurality of said cushioning elements being stiffer than surrounding cushioning elements and formed to be disposed proximate said window to reinforce the shoe.
Claim 2
Dependent Claim
95 words
An improved shoe having a removable insert for a midsole receptacle, wherein the improvement comprises: a plurality of cushioning elements depending from a lower surface of the insert, said cushioning elements providing cushioning support to the foot of the wearer, said cushioning elements having distinctive visual design aspects; an observation window formed of transparent plastic through a portion of the shoe for observing said visual design aspects of the insert; and a plurality of said cushioning elements being stiffer than surrounding cushioning elements and formed to be disposed proximate said window to reinforce the shoe.
Claim 3
Dependent Claim
19 words
The shoe of claim 1, wherein ones of said cushioning elements comprise plastic material having a first durometer reading.
Claim 4
Dependent Claim
24 words
The shoe of claim 2, wherein said stiffer cushioning elements comprise plastic material having a second durometer reading higher than said first durometer reading.
Claim 5
Dependent Claim
24 words
The shoe of claim 1, further including a transverse reinforcing segment formed within the shoe to inhibit movement of the insert within the shoe.
Claim 6
Dependent Claim
24 words
The shoe of claim 4, wherein said reinforcing segment is formed with at least one cavity therein to lighten the weight of the shoe.
Claim 7
Dependent Claim
19 words
The shoe of claim 1, wherein said window is formed through the midsole and an outsole of the shoe.
Claim 8
Dependent Claim
25 words
The shoe of claim 6, further comprising an outsole extension portion along an edge of the shoe proximate said window to further reinforce the shoe.
Claim 9
Dependent Claim
24 words
The shoe of claim 1, wherein said plurality of cushioning elements are formed with a cavity therein to lighten the weight of the insert.
Claim 10
Independent Claim
110 words
A method for providing selective shoe support to the foot of a wearer, comprising the steps of: positioning a removable insert within a midsole receptacle between the foot of the wearer and a bottom portion of a shoe; providing cushioning by said removable insert with a plurality of individual cushioning elements depending from said removable insert, said elements having distinctive visual design aspects; providing an observation window of transparent plastic through a portion of the shoe for observing said visual design aspects; and providing differing degrees of cushioning to at least two portions of the wearer's foot by providing differing stiffnesses to ones of said cushioning elements adjacent said window.
Claim 11
Independent Claim
110 words
A method for providing selective shoe support to the foot of a wearer, comprising the steps of: positioning a removable insert within a midsole receptacle between the foot of the wearer and a bottom portion of a shoe; providing cushioning by said removable insert with a plurality of individual cushioning elements depending from said removable insert, said elements having distinctive visual design aspects; providing an observation window of transparent plastic through a portion of the shoe for observing said visual design aspects; and providing differing degrees of cushioning to at least two portions of the wearer's foot by providing differing stiffnesses to ones of said cushioning elements adjacent said window.
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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) | 1992-07-03 | 1993-01-02 | 1993-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-03 | 1997-01-02 | 1997-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-03 | 2001-01-02 | 2001-07-04 | $7700.00 | Window Closed / Lapsed |