US3740024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced post of synthetic plastic material
Assignee: Arcelor Luxembourg SA
•
Filing: 1971-05-21
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Granted: 1973-06-19
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Expires: 1991-05-21
Abstract
Abstract An elongated post body is composed of synthetic plastic material in which metallic reinforcing elements are embedded and extend longitudinally. One or more stress-transmitting elements are connected with the reinforcing elements, being in part embedded in the material of the post body and extending in part beyond the post body where they may be provided with hooks, eyes or the like.
Inventors
- 👤 W Hellerich
- 👤 V Sadowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:16
CPC Classifications
E; E04; E04H; E04H17/00; E04H17/02; E04H17/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
151 words
A post having an upper and a lower end and comprising an elongated body of synthetic plastic foam material having a nonporous outer surface; a plurality of metallic reinforcing elements embedded in the body of synthetic plastic foam material and extending longitudinally therein; at least one stresstransmitting element embedded in the body of synthetic plastic foam material that is connected to each of the embedded metallic reinforcing elements and to at least one other element that extends outside the outer surface of the body of synthetic plastic foam material and is adapted to sustain additional stress to which the post is to be subjected, in normal use; and external reinforcing elements at each of said upper and lower ends of the post, each connected to each of the embedded metallic reinforcing elements and said external reinforcing element at said upper end extending downwardly and enveloping the upper portion of said post.
Claim 2
Dependent Claim
151 words
A post having an upper and a lower end and comprising an elongated body of synthetic plastic foam material having a nonporous outer surface; a plurality of metallic reinforcing elements embedded in the body of synthetic plastic foam material and extending longitudinally therein; at least one stresstransmitting element embedded in the body of synthetic plastic foam material that is connected to each of the embedded metallic reinforcing elements and to at least one other element that extends outside the outer surface of the body of synthetic plastic foam material and is adapted to sustain additional stress to which the post is to be subjected, in normal use; and external reinforcing elements at each of said upper and lower ends of the post, each connected to each of the embedded metallic reinforcing elements and said external reinforcing element at said upper end extending downwardly and enveloping the upper portion of said post.
Claim 3
Dependent Claim
19 words
A post as defined in claim 1, wherein said reinforcing component at said leading end is a pointed element.
Claim 4
Dependent Claim
29 words
A post as defined in claim 1, wherein at least some of said elements have roughened exposed surfaces for facilitating adhesion with the foam material of said post body.
Claim 5
Dependent Claim
23 words
A post as defined in claim 1; and further comprising filler material contained in the synthetic plastic foam material of said post body.
Claim 6
Dependent Claim
36 words
A post as defined in claim 1 in which a metallic element thereof is coated with a material that bonds readily to the synthetic plastic foam material of which the body of the post is formed.
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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) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |