US4668563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conformable fiberglass casting tape
Assignee: Johnson and Johnson Professional Inc
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Filing: 1986-06-12
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Granted: 1987-05-26
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Expires: 2006-06-12
Abstract
Abstract A conformable casting tape made with a combination of high modulus fibers and an elastomeric extensible fiber. The tape is capable of stretching 40 to 200% in the length direction and has a power of between 40 and 125 grams per inch of width at 30% elongation.
Inventors
- 👤 George J. Buese
- 👤 Hee K. Yoon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:18
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/04; A61L; A61L15/00; A61L15/07; D; D04; D04B; D04B21/00; D04B21/14; D04B21/18; D10; D10B; D10B2509/00; D10B2509/02; D10B2509/024; Y; Y10; Y10S; Y10S428/00; Y10S428/902; Y10T; Y10T442/00; Y10T442/40; Y10T442/45; Y10T442/456; Y10T442/463
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
111 words
An orthopaedic casting tape containing a fibrous substrate impregnated with a water-reactive polyurethane prepolymer, said substrate comprising a combination of a high modulus fiber and an elastomeric fiber which is not substantially reactive with the prepolymer and which will maintain its elastic properties for at least 12 months after impregnation with the prepolymer, the elastomeric fiber being incorporated in the substrate in the length direction of the substrate to give the substrate an extensibility of between 40% and 200% in the length direction, said substrate having a power such that the force necessary to extend the substrate to 30% elongation is between 40 and 175 grams per inch of substrate width.
Claim 2
Dependent Claim
111 words
An orthopaedic casting tape containing a fibrous substrate impregnated with a water-reactive polyurethane prepolymer, said substrate comprising a combination of a high modulus fiber and an elastomeric fiber which is not substantially reactive with the prepolymer and which will maintain its elastic properties for at least 12 months after impregnation with the prepolymer, the elastomeric fiber being incorporated in the substrate in the length direction of the substrate to give the substrate an extensibility of between 40% and 200% in the length direction, said substrate having a power such that the force necessary to extend the substrate to 30% elongation is between 40 and 175 grams per inch of substrate width.
Claim 3
Dependent Claim
38 words
The casting tape of claim 1 in which the high modulus fiber comprises 99.75-75% by volume of the fiber in the substrate and the elastomeric fiber comprises 0.25 to 25% by volume of the fibers in the substrate.
Claim 4
Dependent Claim
33 words
The casting tape of claim 1 in which the substrate has an extensibility in the length direction of between 60 and 100% under a static load of 640 grams per inch of width.
Claim 5
Dependent Claim
29 words
The casting tape of claim 1 in which the substrate is a Raschel knit fabric and in which the elastomeric fiber is in the chain stitch of the fabric.
Claim 6
Dependent Claim
14 words
The casting tape of claim 1 in which the high modulus fiber is fiberglass.
Claim 7
Dependent Claim
14 words
The casting tape of claim 1 in which the elastomeric fiber is natural rubber.
Claim 8
Dependent Claim
28 words
The casting tape of claim 1 in which the substrate is a 3 bar Raschel knit fabric and the elastomeric fiber is in bar 3 of the substrate.
References Cited (Backward Citations)
US3256130A
Cited
US4366814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-25 | 1990-11-24 | 1991-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-25 | 1994-11-24 | 1995-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-25 | 1998-11-24 | 1999-05-26 | $7700.00 | Window Closed / Lapsed |