US3784167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guard-rail assembly with pivotal support posts
Assignee: Arcelor Luxembourg SA
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Filing: 1972-10-11
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Granted: 1974-01-08
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Expires: 1992-10-11
Abstract
Abstract A guard rail formed of a downwardly open channel whose interior is filled with a bonded-in-place synthetic-resin mass is formed approximately every 10 meters with a downwardly open pocket in which the upper end of a support post is received. A pivot bolt transverse to the rail passes through the rail and the post and allows pivoting of this post relative to the rail in a horizontal plane including the rail. The lower end of the post is received in an upwardly open channel so that on collision of a vehicle with the post or a similar blow being struck to the post below the rail, this post will pivot out of its socket and up into the pocket so that the rail itself will take the blow to prevent a vehicle from flipping over the guard rail.
Inventors
- 👤 E Glaesener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:31
CPC Classifications
E; E01; E01F; E01F15/00; E01F15/02; E01F15/04; E01F15/0453
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
115 words
A guard-rail assembly comprising: a horizontal rail formed with at least one downwardly open pocket elongated in the longitudinal direction of said rail; a vertical post having an upper end received in said pocket; a pivot between said upper end and said rail and defining for said post relative to said rail a pivot axis extending transverse to the longitudinal direction of said rail; and an upwardly open socket in the ground receiving the lower end of said post, said socket being an upwardly open channel extending parallel to the longitudinal direction of said rail, said post being pivotal about said axis to swing said lower end upwardly free from said channel in said direction.
Claim 2
Dependent Claim
115 words
A guard-rail assembly comprising: a horizontal rail formed with at least one downwardly open pocket elongated in the longitudinal direction of said rail; a vertical post having an upper end received in said pocket; a pivot between said upper end and said rail and defining for said post relative to said rail a pivot axis extending transverse to the longitudinal direction of said rail; and an upwardly open socket in the ground receiving the lower end of said post, said socket being an upwardly open channel extending parallel to the longitudinal direction of said rail, said post being pivotal about said axis to swing said lower end upwardly free from said channel in said direction.
Claim 3
Dependent Claim
34 words
The assembly defined in claim 1 wherein said pocket is sufficiently elongated in the longitudinal direction of said rail that said post may pivot about said axis into a position parallel to said rail.
Claim 4
Dependent Claim
23 words
The assembly defined in claim 1 wherein said axis is spaced from the top edge and from the bottom edge of said rail.
Claim 5
Dependent Claim
23 words
The assembly defined in claim 3 wherein said rail is formed on both sides with a groove, said axis passing through said grooves.
Claim 6
Dependent Claim
49 words
The assembly defined in claim 1 wherein said rail is formed of a downwardly open sheet metal shell, a downwardly open sheet metal lining defining said pocket, and a synthetic-resin mass substantially filling said shell and adhering to the interior of said shell and the exterior of said lining.
Claim 7
Dependent Claim
21 words
The assembly defined in claim 1 wherein said chennel has a pair of upwardly extending flanks laterally embracing said lower end.
Claim 8
Dependent Claim
28 words
The assembly defined in claim 6 wherein said flanks are between 100 mm and 200 mm in height and have upper edges substantially flush with the ground level.
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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |