US5175946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insole with replaceable pneumatic buffer
Assignee: Individual
•
Filing: 1991-09-11
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Granted: 1993-01-05
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Expires: 2011-09-11
Abstract
Abstract An insole includes a heel portion defining a recess. A replaceable pneumatic buffer defining a first and a second tubular elements is received in the recess of the insole. A central tunnel communicating with the first tubular element defines a hole. A plurality of tunnels communicate the first tubular element with the second tubular element. When load is exerted on the buffer, the second tubular element abuts a surface of the shoe, thereby defining a chamber filled with air. When the load increases excessively, air is ventable through the hole of the central tunnel and further off the chamber.
Inventors
- 👤 Ming-En Tsai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:20
CPC Classifications
A; A43; A43B; A43B17/00; A43B17/02; A43B17/03
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
69 words
An insole including a heel portion defining a recess and a buffer releasably fitting in said recess said buffer comprising: a first tubular element extending in a closed curve; a first tunnel communicating with said first tubular element and defining a hole; a second tubular element extending around the first tubular element; and a plurality of tunnels, each communicating between the first tubular element and the second tubular element.
Claim 2
Dependent Claim
69 words
An insole including a heel portion defining a recess and a buffer releasably fitting in said recess said buffer comprising: a first tubular element extending in a closed curve; a first tunnel communicating with said first tubular element and defining a hole; a second tubular element extending around the first tubular element; and a plurality of tunnels, each communicating between the first tubular element and the second tubular element.
Claim 3
Dependent Claim
55 words
An insole in accordance with claim 1, wherein said first tubular element has a diameter less than the diameter of said second tubular element, said first tunnel has a diameter less than said diameter of said first tubular element, and said plurality of tunnels each have diameters less than that of said first tubular element.
Claim 4
Dependent Claim
68 words
An insole including a heel portion defining a recess and a buffer releasably fitted in said recess said buffer comprising: a first tubular element extending in a circle; a central tunnel communicating with said first tubular element and defining a hole; a second tubular element extending around the first tubular element; and a plurality of tunnels, each communicating between the first tubular element and the second tubular element.
Claim 5
Dependent Claim
68 words
An insole including a heel portion defining a recess and a buffer releasably fitted in said recess said buffer comprising: a first tubular element extending in a circle; a central tunnel communicating with said first tubular element and defining a hole; a second tubular element extending around the first tubular element; and a plurality of tunnels, each communicating between the first tubular element and the second tubular element.
Claim 6
Dependent Claim
54 words
An insole in accordance with claim 3, wherein said first tubular element has a diameter less than that of said second tubular element, said central tunnel has a diameter less than the diameter of said first tubular element, and said plurality of tunnels each have diameters less than that of said first tubular element.
References Cited (Backward Citations)
GB190717718A
Cited
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Cited
US2106788A
Cited
US2365027A
Cited
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Cited
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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) | 1996-01-05 | 1996-07-06 | 1997-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-01-05 | 2000-07-06 | 2001-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-01-05 | 2004-07-06 | 2005-01-05 | $7700.00 | Window Closed / Lapsed |