US4573216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact dissipator
Assignee: Individual
•
Filing: 1983-07-08
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Granted: 1986-03-04
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Expires: 2003-07-08
Abstract
Abstract An impact dissipator for the protection of bones and organs of the human body from impacts or falls. The dissipator is bell-shaped and has an outer layer which consists of an elastic rubber substance. Within the shell-like outer layer a viscous fluid layer is located, which is bonded thereto, with the fluid layer forming a skin-friendly adhesive layer adapted to contact and conform to the area being protected.
Inventors
- 👤 Walter Wortberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:27
CPC Classifications
A; A41; A41D; A41D13/00; A41D13/05; A41D13/055; A41D13/0556; A41D13/0506; A61; A61F; A61F13/00; A61F13/02; A61F13/023; A61F5/00; A61F5/01; A61F5/0102; A61F2005/0181; A61F2005/0183; A61F2013/00089; A61F2013/00272; A61F13/15; A61F2013/15008; A61F2013/15024; A61F13/53; A61F2013/530802
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
113 words
An impact dissipator for protection of the human body, comprising: (a) an outer layer consisting of cross-linked silicone rubber; (b) an inner viscous-like fluid layer consisting of partially cross-linked silicone rubber integrally bonded to said outer layer at the interface thereof, said inner layer having an adhesive skin-friendly surface adapted to tightly contact the skin of the wearer and conform to the external shape of the body in the region to be protected, and wherein (c) said outer and integrally bonded inner layers are generally oval in shape and bell-shaped in cross-section, with the maximum thickness of the bonded layers being in the area contacting the region of the body to be protected.
Claim 2
Dependent Claim
113 words
An impact dissipator for protection of the human body, comprising: (a) an outer layer consisting of cross-linked silicone rubber; (b) an inner viscous-like fluid layer consisting of partially cross-linked silicone rubber integrally bonded to said outer layer at the interface thereof, said inner layer having an adhesive skin-friendly surface adapted to tightly contact the skin of the wearer and conform to the external shape of the body in the region to be protected, and wherein (c) said outer and integrally bonded inner layers are generally oval in shape and bell-shaped in cross-section, with the maximum thickness of the bonded layers being in the area contacting the region of the body to be protected.
Claim 3
Dependent Claim
29 words
An impact dissipator according to claim 1, characterized in that the inner fluid layer is exposed on the bottom side of the impact dissipator and forms the adhesive surface.
Claim 4
Dependent Claim
36 words
An impact dissipator according to claim 1, characterized in that the thickness of the inner fluid layer is up to 40 mm, and the total thickness of the impact dissipator is from 20 to 50 mm.
Claim 5
Dependent Claim
24 words
An impact dissipator according to claim 3, characterized in that the inner fluid layer is formed with steps with undercuts at the periphery thereof.
Claim 6
Dependent Claim
20 words
An impact dissipator according to claim 1, characterized in that said impact dissipator contains one or more pore-like air chambers.
Claim 7
Dependent Claim
38 words
An impact dissipator according to claim 1, characterized in that for application in the area of the hip, the bottom side of the impact dissipator has a concave recess for accommodating the greater trochanter of the hip joint.
Claim 8
Dependent Claim
23 words
An impact dissipator according to claim 6, wherein said concave recess is located generally in the area of greatest thickness of said dissipator.
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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) | 1989-03-03 | 1989-09-02 | 1990-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-03 | 1993-09-02 | 1994-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-03 | 1997-09-02 | 1998-03-04 | $7700.00 | Window Closed / Lapsed |