US4169469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orthopedic device
Assignee: Yardney Co
•
Filing: 1978-01-10
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Granted: 1979-10-02
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Expires: 1998-01-10
Abstract
Abstract An orthopedic device comprising a plastic sheet member having one side covered with a thin protective layer which is substantially thinner than said plastic sheet member and the other side covered with an insulating layer, e.g., fabric or foam. The plastic sheet member has a tensile strength of at least 2,000 psi. The orthopedic device is formable at temperatures above about 120° F.
Inventors
- 👤 Elmer M. Arluck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:13
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; A; A61; A61F; A61F13/00; A61F13/04; A61F5/00; A61F5/01; A61F5/0102; A61F5/0104; A61F5/0118; A61L; A61L15/00; A61L15/07
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
111 words
A shaped body consisting of a plastic sheet member of a thickness of 50 to 120 mils, a flexural strength of 3,000 to 14,000 psi, a flexural modulus of 0.5×10 5 to 7×10 5 psi and a Vicat softening point of 60° C. to 80° C., an insulating layer having a thickness of at least 10 mils and a coefficient of heat transfer below 2 cal/sec/cm 2 /°C.×10 -4 on one side of said sheet member, and a protective layer on the other side of said sheet member, said sheet being shapeable to its final contours by heating to a temperature of 120° F. to 400° F. at said protective layer.
Claim 2
Dependent Claim
111 words
A shaped body consisting of a plastic sheet member of a thickness of 50 to 120 mils, a flexural strength of 3,000 to 14,000 psi, a flexural modulus of 0.5×10 5 to 7×10 5 psi and a Vicat softening point of 60° C. to 80° C., an insulating layer having a thickness of at least 10 mils and a coefficient of heat transfer below 2 cal/sec/cm 2 /°C.×10 -4 on one side of said sheet member, and a protective layer on the other side of said sheet member, said sheet being shapeable to its final contours by heating to a temperature of 120° F. to 400° F. at said protective layer.
Claim 3
Dependent Claim
29 words
The shaped body defined in claim 1 wherein said protective layer is fabric bonded to the plastic sheet member and having a thickness between about 4 to 22 mils.
Claim 4
Dependent Claim
15 words
The shaped body defined in claim 1 wherein said insulating layer is a fabric layer.
Claim 5
Dependent Claim
21 words
The shaped body defined in claim 3 wherein said insulating layer is bonded to said sheet member with a thermoplastic adhesive.
Claim 6
Dependent Claim
15 words
The shaped body defined in claim 4 wherein said fabric is impregnated with said adhesive.
Claim 7
Dependent Claim
16 words
The shaped body defined in claim 1 wherein said insulating layer is a plastic foam layer.
References Cited (Backward Citations)
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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) | 1982-10-01 | 1983-04-02 | 1983-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-01 | 1987-04-02 | 1987-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-01 | 1991-04-02 | 1991-10-02 | $7700.00 | Window Closed / Lapsed |