US4086015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crash moderation system for roads, highways, railways, airfields and harbors
Assignee: Individual
•
Filing: 1976-09-27
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Granted: 1978-04-25
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Expires: 1996-09-27
Abstract
Abstract A lightweight, strong, not easily destructible material, in the form of pellets such as lightweight aggregate of burnt expanded clay, shale or slate, foamed glass, cinder or granulated plastic, with a density of up to about 40 lbs per cubic ft., is being placed on the ground where the impact reduction is desired. The dimensions and the amount of the material are related to the type, weight and speed of the object that can make the impact. The pellets of the lightweight material are not bound or connected to each other except for the surface of the wall, which is bound together by cement, plastic, nets or plastic liners applied in situ or prior to the installation for example with gabions (net boxes). The sloping of the wall of the lightweight material is vertical or at least more steep than the natural angle of repose for the lightweight material.
Inventors
- 👤 Sonja Margareta Isabella Eliasson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:37
CPC Classifications
E; E01; E01F; E01F15/00; E01F15/02; E01F15/08; E01F15/081; E01F15/086; E01F8/00; E01F8/02; E01F8/021; E01F8/025
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
86 words
A crash moderation system for placement on a supporting surface and comprising a barrier which includes: (a) strong, kinetic-energy-absorbing, lightweight, pellet-form material with a maximum density of approximately 40 pounds per cubic foot and pellets ranging from 0 to 1.25 inches in diameter, and (b) material-surrounding binding means to contain the pellets, to sustain their kinetic-energy absorbing effect and to provide the barrier with a surface that makes an angle with the supporting surface which is steeper than the angle of repose for the lightweight material.
Claim 2
Dependent Claim
86 words
A crash moderation system for placement on a supporting surface and comprising a barrier which includes: (a) strong, kinetic-energy-absorbing, lightweight, pellet-form material with a maximum density of approximately 40 pounds per cubic foot and pellets ranging from 0 to 1.25 inches in diameter, and (b) material-surrounding binding means to contain the pellets, to sustain their kinetic-energy absorbing effect and to provide the barrier with a surface that makes an angle with the supporting surface which is steeper than the angle of repose for the lightweight material.
Claim 3
Dependent Claim
21 words
A crash moderation system according to claim 1 wherein the lightweight material is comprised of burnt expanded clay, slate or shale.
Claim 4
Dependent Claim
17 words
A crash moderation system according to claim 1 wherein the lightweight material is comprised of foamed glass.
Claim 5
Dependent Claim
16 words
A crash moderation system according to claim 1 wherein the lightweight material is comprised of cinder.
Claim 6
Dependent Claim
17 words
A crash moderation system according to claim 1 wherein the lightweight material is comprised of granulated plastic.
Claim 7
Dependent Claim
39 words
A crash moderation system according to claim 1 wherein the pellet-form material binding means is a prefabricated net gabion having a sufficiently fine mesh to contain the pellets, and the barrier comprises a plurality of such prefabricated net gabions.
Claim 8
Dependent Claim
30 words
A crash moderation system according to claim 1 wherein the pellet-form material is a prefabricated plastic box-form liner, and the barrier is constituted by a plurality of such light-weight-material-filled liners.
Claim 9
Dependent Claim
35 words
A crash moderation system according to claim 1 wherein the pellet-form material binding means is an elastic net having a sufficiently fine mesh to retain the lightweight material, the elastic net forming the barrier surface.
Claim 10
Dependent Claim
61 words
A process for making a crash moderation system according to claim 1 which comprises securing the lightweight material in the form of a barrier by holding the pellets in place with a net, spray-coating pellets on the outside of the thus-formed barrier with a plastic material, allowing the plastic coating to harden sufficiently to support the barrier, and removing the net.
Claim 11
Dependent Claim
57 words
A process for preparing a crash moderation system according to claim 1 which comprises securing the lightweight material in barrier form with a net having a sufficiently fine mesh to contain the pellets, spraycoating surface pellets with a mixture of cement and water, allowing the cement to harden sufficiently to support the barrier, and removing the net.
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) | 1981-04-24 | 1981-10-24 | 1982-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-24 | 1985-10-24 | 1986-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-24 | 1989-10-24 | 1990-04-25 | $7700.00 | Window Closed / Lapsed |