US3881697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roadside safety apparatus
Assignee: Arcelor Luxembourg SA
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Filing: 1973-10-19
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Granted: 1975-05-06
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Expires: 1993-10-19
Abstract
Abstract A roadside barrier for protecting vehicles against impact with a fixed roadside object such as a lamppost and for protecting fixed objects against impacts of a vehicle, comprises a support and upright barriers staggered transversely and of increasing crosssection of area in the direction of travel. Preferably the barrier is a plurality of upright posts increasing in number and/or individual cross section at different locations approaching the stationary object.
Inventors
- 👤 Ernest Glaesener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:37
CPC Classifications
E; E01; E01F; E01F15/00; E01F15/14; E01F15/145; E01F15/146
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
140 words
A road barrier for protection of a vehicle and its occupants in an impact with a stationary object, said barrier comprising a support base widening in the direction of said object, and a correspondingly widening array of a multiplicity of upright elongated impact-absorbing bendable elements having lower ends mounted on said support base aNd each consisting of an upright bar having a lower end sunk into said support and extending below the grounds, said bars having free upper ends and being of generally continuous cross section throughout their length and being arrayed so as to provide a greater cross-sectional density per unit of surface area close to said object than remote therefrom, said bars being spaced apart and staggered along said support base, the number of bars per unit ground area being greater close to said object than remote therefrom.
Claim 2
Dependent Claim
140 words
A road barrier for protection of a vehicle and its occupants in an impact with a stationary object, said barrier comprising a support base widening in the direction of said object, and a correspondingly widening array of a multiplicity of upright elongated impact-absorbing bendable elements having lower ends mounted on said support base aNd each consisting of an upright bar having a lower end sunk into said support and extending below the grounds, said bars having free upper ends and being of generally continuous cross section throughout their length and being arrayed so as to provide a greater cross-sectional density per unit of surface area close to said object than remote therefrom, said bars being spaced apart and staggered along said support base, the number of bars per unit ground area being greater close to said object than remote therefrom.
Claim 3
Dependent Claim
19 words
The barrier defined in claim 1 wherein each of said bars has a metal wall defining an upright space.
Claim 4
Dependent Claim
20 words
The barrier defined in claim 2 wherein at least some of said spaces are filled with a rigid synthetic-resin foam.
Claim 5
Dependent Claim
23 words
The barrier defined in claim 3 wherein said foam is a polyurethane structure foam having a bulk density of at most 150 kp/m3.
Claim 6
Dependent Claim
30 words
The barrier defined in claim 3 wherein at least two sheet metal bodies are each formed with vertical corrugations defining a plurality of said spaces, said bodies constituting said walls.
Claim 7
Dependent Claim
21 words
The barrier defined in claim 3 wherein each of said bars includes an upright sheet metal tube constituting its said wall.
Claim 8
Dependent Claim
23 words
The barrier defined in claim 6 further comprising a plurality of sockets in the support base each adapted to receive a respective element.
Claim 9
Dependent Claim
23 words
The barrier defined in claim 7 wherein said tubes and said sockets are cylindrical and said tubes are loosely received in said sockets.
Claim 10
Dependent Claim
16 words
The barrier defined in claim 6, further comprising an upright sheet metal web interconnecting said tubes.
Claim 11
Dependent Claim
25 words
The barrier defined in claim 6, further comprising an upright sheet metal wall surrounding said array and connected to at least some of said tubes.
Claim 12
Dependent Claim
18 words
The barrier defined in claim 2 wherein said sheet metal has a thickness of 0.5 to 2 mm.
Claim 13
Dependent Claim
13 words
The barrier defined in claim 11 wherein said sheet metal is galvanized steel.
Claim 14
Dependent Claim
15 words
The barrier defined in claim 11 wherein said sheet metal is surrounded by synthetic-resin foam.
Claim 15
Dependent Claim
22 words
The barrier defined in claim 11 wherein the individual bars closer to said object have greater cross-sectional areas than bars remote therefrom.
Claim 16
Dependent Claim
19 words
The barrier defined in claim 11 wherein said bars are of increasing height in the direction of said object.
Claim 17
Dependent Claim
23 words
The barrier defined in claim 11 wherein said array has a length in the direction of vehicle travel of more than 10 m.
Claim 18
Dependent Claim
14 words
The barrier defined in claim 16 whereins said length is 15 to 20 m.
Claim 19
Dependent Claim
25 words
The barrier defined in claim 11 wherein the height of said bars as measured from the surface of the ground is 0.6 to 1.0 m.
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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) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |