US4619055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cushioning pad
Assignee: Individual
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Filing: 1984-10-29
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Granted: 1986-10-28
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Expires: 2004-10-29
Abstract
Abstract A cushioning pad or mat for protecting the human foot and body while walking or standing. The mat is of a bonded, multi-layer construction with an upper moisture-absorbing layer, an intermediate resilient layer of foam rubber which will mold to the individual's particular foot contour and irregularities and a lower shock-absorbing layer of soft natural latex rubber which is resilient and has memory. Air holes are provided at spaced intervals through the mat and the special cellular design provides a bellows action to enhance the flow of air around and through the mat as well as to improve blood circulation in the extremities of the user. In the preferred embodiment, the mat is configured as an insole for insertion of footwear. In other embodiments, the mat may be used as protective knee pads, helmet liners and the like.
Inventors
- 👤 Murray R. Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:35
CPC Classifications
A; A43; A43B; A43B7/00; A43B7/14; A43B7/1405; A43B7/1455; A43B7/146; A43B17/00; A43B17/02; A43B17/08; A43B7/28
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
180 words
A cushioning mat comprising: (a) an upper laminate of material having moisture-absorbant characteristics; (b) an intermediate laminate having an upper and lower surface, said upper surface being bonded to the lower surface of said upper laminate, said intermediate laminate being resilient and permanently deformable over prolonged application of pressure; (c) a lower cushioning pad having a base layer having an upper and lower surface, said upper surface of said base layer being bonded to the lower surface of said intermediate layer; (d) a plurality of generally spaced-apart longitudinally and transversely extending ribs extending from the lower surface of said base defining a plurality of cells, said ribs having memory to return to the original shape upon removal of deformation forces and being resilient to flex and deform under application of pressure to cushion shock; and (e) said ribs defining first air passageways placing said cells in communication with one another and wherein said laminate and pad define second air passageways at selected locations whereby air flow is induced through the mat and between the cells as the mat is flexed.
Claim 2
Dependent Claim
180 words
A cushioning mat comprising: (a) an upper laminate of material having moisture-absorbant characteristics; (b) an intermediate laminate having an upper and lower surface, said upper surface being bonded to the lower surface of said upper laminate, said intermediate laminate being resilient and permanently deformable over prolonged application of pressure; (c) a lower cushioning pad having a base layer having an upper and lower surface, said upper surface of said base layer being bonded to the lower surface of said intermediate layer; (d) a plurality of generally spaced-apart longitudinally and transversely extending ribs extending from the lower surface of said base defining a plurality of cells, said ribs having memory to return to the original shape upon removal of deformation forces and being resilient to flex and deform under application of pressure to cushion shock; and (e) said ribs defining first air passageways placing said cells in communication with one another and wherein said laminate and pad define second air passageways at selected locations whereby air flow is induced through the mat and between the cells as the mat is flexed.
Claim 3
Dependent Claim
11 words
The mat of claim 1 wherein said upper laminate is nylon.
Claim 4
Dependent Claim
12 words
The cushioning mat of claim wherein said intermediate layer is neoprene rubber.
Claim 5
Dependent Claim
21 words
The cushioning mat of claim 1 wherein said lower cushioning pad is molded as a unitary structure of natural latex rubber.
Claim 6
Dependent Claim
22 words
The cushioning mat of claim 1 wherein said laminate has a peripheral configuration generally conforming to the shape of the human foot.
References Cited (Backward Citations)
US895950A
Cited
US2207632A
Cited
US2553616A
Cited
US2558973A
Cited
US4075772A
Cited
US4012855A
Cited
US4223455A
Cited
US4316335A
Cited
US4336661A
Cited
US4356642A
Cited
US4438573A
Cited
US4485568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-10-27 | 1990-04-28 | 1990-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-27 | 1994-04-28 | 1994-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-27 | 1998-04-28 | 1998-10-28 | $7700.00 | Window Closed / Lapsed |