US4899498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam cement highway sound barrier
Assignee: Individual
•
Filing: 1988-10-03
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Granted: 1990-02-13
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Expires: 2008-10-03
Abstract
Abstract A highway sound barrier formed by one or more panels mounted in a vertical abutting relation, each of the panels being formed from one or more self-supporting foam cement blocks. Each of the blocks having a foam core, a reinforcement grid mounted on the exposed surfaces of the core and a cementitious coating applied to the reinforcement grid for securing the grid to the foam core and to increase the compressive strength of the blocks. Thicknesses of the blocks being sufficient to form a load bearing structure. The panels being anchored to the ground by a helical screw anchor rod embedded in a concrete pad, with the support posts being mounted in either a common verticle plane or alternately offset.
Inventors
- 👤 Donald L. Grieb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:51
CPC Classifications
E; E01; E01F; E01F8/00; E01F8/0005; E01F8/0017
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
81 words
A highway sound barrier comprising: a number of panels mounted in a vertical abutting relation; each of said panels being formed from one or more self-supporting foam cement blocks; each of said blocks being formed from a load bearing foam core; a reinforcement grid mounted on the exposed surfaces of said core; and a cementitious coating applied to the reinforcement grid for securing the grid to said foam core, said block having a sufficient thickness to form a load bearing structure.
Claim 2
Dependent Claim
81 words
A highway sound barrier comprising: a number of panels mounted in a vertical abutting relation; each of said panels being formed from one or more self-supporting foam cement blocks; each of said blocks being formed from a load bearing foam core; a reinforcement grid mounted on the exposed surfaces of said core; and a cementitious coating applied to the reinforcement grid for securing the grid to said foam core, said block having a sufficient thickness to form a load bearing structure.
Claim 3
Dependent Claim
41 words
The barrier according to claim 1 wherein said coating is formed from a composition including Portland cement, sand, cut fiberglass roving strands and a polymer adhesive, said composition being applied to said reinforcement grid to bond the grid to the core.
Claim 4
Dependent Claim
21 words
The barrier according to claim 1 or 2 wherein said reinforcement grid is woven from fiberglass to form a perforate fabric.
Claim 5
Dependent Claim
18 words
The barrier according to claim 1 or 2 wherein said reinforcement grid is formed from a polypropylene mesh.
Claim 6
Dependent Claim
89 words
A highway sound barrier comprising: a number of posts mounted in a spaced relation; a number of sound absorbing panels supported in a vertical relation between said posts; each of said panels being formed from one or more self-supporting foam cement blocks; each of said blocks including means on the edges for matingly engaging said posts on said adjacent blocks; each of said blocks having a cellular load bearing foam core; and a cementitious coating on the exterior surfaces of said foam core; said coating including a fiberglass mat.
Claim 7
Dependent Claim
89 words
A highway sound barrier comprising: a number of posts mounted in a spaced relation; a number of sound absorbing panels supported in a vertical relation between said posts; each of said panels being formed from one or more self-supporting foam cement blocks; each of said blocks including means on the edges for matingly engaging said posts on said adjacent blocks; each of said blocks having a cellular load bearing foam core; and a cementitious coating on the exterior surfaces of said foam core; said coating including a fiberglass mat.
Claim 8
Dependent Claim
32 words
The barrier according to claim 5 wherein said coating is formed from a composition including fiberglass roving strands mixed therein, said composition penetrating the mat to bond the coating to the core.
Claim 9
Dependent Claim
17 words
The barrier according to claim 5 wherein said mat is in the form of a perforate fabric.
Claim 10
Dependent Claim
16 words
The barrier according to claim 5 wherein said mat is in the form of a grid.
Claim 11
Dependent Claim
21 words
The barrier according to claim 5 or 6 wherein said roving strands are cut in lengths of 178 to 3/4 inches.
Claim 12
Dependent Claim
17 words
The barrier according to claim 1 or 5 including means for supporting the ends of said barrier.
Claim 13
Dependent Claim
42 words
The barrier according to claim 10 wherein said supporting means comprises a helical screw anchor rod turned into the ground, a concrete pad embedded in the ground at ground level and means for connecting said concrete pad to said screw anchor rod.
Claim 14
Dependent Claim
18 words
The barrier according to claim 1 or 5 wherein said posts are mounted in a common vertical plane.
Claim 15
Dependent Claim
28 words
The barrier according to claim 1 or 5 wherein said posts are alternating offset from the adjacent posts whereby said panels are angularly offset from the adjacent panels.
References Cited (Backward Citations)
US2460309A
Cited
US2692219A
Cited
US3149693A
Cited
US4125664A
Cited
US3983956A
Cited
US4094380A
Cited
US4042745A
Cited
US4143495A
Cited
US4317503A
Cited
US4358090A
Cited
US4258514A
Cited
US4325457A
Cited
US4674593A
Cited
DE3714089A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-12 | 1993-08-14 | 1994-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-12 | 1997-08-14 | 1998-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-12 | 2001-08-14 | 2002-02-13 | $7700.00 | Window Closed / Lapsed |