US4294240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perforated closed cell padding material
Assignee: 3M Co
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Filing: 1979-08-17
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Granted: 1981-10-13
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Expires: 1999-08-17
Abstract
Abstract Perforated closed cell foam padding material useful with orthopedic devices, said material being capable of passing perspiration from human skin therethrough, being resiliently compressible, and being elastic in the longitudinal direction of the padding material.
Inventors
- 👤 Gary A. Thill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:13
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/04; A61F13/041; A61F13/10; A61F13/104; A61L; A61L15/00; A61L15/07; A61L15/12; A61F2013/00089; A61F2013/00093; A61F2013/00097; A61F2013/00119; A61F2013/00131; A61F2013/00148; A61F2013/00246; A61F2013/00251; A61F2013/00361; A61F2013/00855; A61F2013/00859; A61F13/15; A61F13/53; A61F2013/530802
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
83 words
A combination for rendering a portion of the body relatively immobile, said combination comprising an orthopedic device which renders the portion of the body relatively immobile and a padding material, said padding material consisting essentially of a closed cell polymeric foam, said foam being water repellent at least to the extent that water penetrates the foam with difficulty, said padding material being conformable, being resiliently compressible, containing perforations capable of passing perspiration from human skin therethrough and being elastic in the longitudinal direction.
Claim 2
Dependent Claim
83 words
A combination for rendering a portion of the body relatively immobile, said combination comprising an orthopedic device which renders the portion of the body relatively immobile and a padding material, said padding material consisting essentially of a closed cell polymeric foam, said foam being water repellent at least to the extent that water penetrates the foam with difficulty, said padding material being conformable, being resiliently compressible, containing perforations capable of passing perspiration from human skin therethrough and being elastic in the longitudinal direction.
Claim 3
Dependent Claim
10 words
The combination of claim 1 wherein said foam is polyethylene.
Claim 4
Dependent Claim
10 words
The combination of claim 1 wherein said perforations are slits.
Claim 5
Dependent Claim
62 words
The combination of claim 3 wherein said perforations, when said padding material is in a relaxed state, are slits perpendicular to the longitudinal dimension of said padding material, said slits being in parallel rows across the lateral dimension of said padding material with slits of adjacent rows being offset from each other, said slits perforating through the thickness of said padding material.
Claim 6
Independent Claim
107 words
A method for rendering a portion of the body relatively immobile, said method comprising the steps of: a. applying a padding material to the portion of the body which is to be rendered immobile; and b. applying over said padding material an orthopedic device which renders the portion of the body relatively immobile; wherein said padding material consists essentially of a closed cell polymeric foam, said foam being water repellent at least to the extent that water penetrates the foam with difficulty, said padding material being conformable, being resiliently compressible, containing perforations capable of passing perspiration from human skin therethrough, and being elastic in the longitudinal direction.
Claim 7
Independent Claim
107 words
A method for rendering a portion of the body relatively immobile, said method comprising the steps of: a. applying a padding material to the portion of the body which is to be rendered immobile; and b. applying over said padding material an orthopedic device which renders the portion of the body relatively immobile; wherein said padding material consists essentially of a closed cell polymeric foam, said foam being water repellent at least to the extent that water penetrates the foam with difficulty, said padding material being conformable, being resiliently compressible, containing perforations capable of passing perspiration from human skin therethrough, and being elastic in the longitudinal direction.
Claim 8
Dependent Claim
10 words
The method of claim 5, wherein said foam is polyethylene.
Claim 9
Dependent Claim
10 words
The method of claim 5 wherein said perforations are slits.
Claim 10
Dependent Claim
62 words
The method of claim 7 wherein said perforations, when said padding material is in a relaxed state, are slits perpendicular to the longitudinal dimension of said padding material, said slits being in parallel rows across the lateral dimension of said padding material with slits of adjacent rows being offset from each other, said slits perforating through the thickness of said padding material.
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) | 1984-10-12 | 1985-04-13 | 1985-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-12 | 1989-04-13 | 1989-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-12 | 1993-04-13 | 1993-10-13 | $7700.00 | Window Closed / Lapsed |