US4348133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Median barrier construction
Assignee: SYNERTECH MOULDED PRODUCTS Inc
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Filing: 1980-06-02
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Granted: 1982-09-07
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Expires: 2000-06-02
Abstract
Abstract A highway median barrier construction is disclosed wherein the barrier is formed as integral U-shaped shell sections of polymer concrete which are placed end-to-end at the construction site and are then filled with hydraulic concrete or other ballast through filling holes which are then capped with polymer concrete.
Inventors
- 👤 Peter F. Trent
- 👤 Raymond Charlebois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:14
CPC Classifications
E; E01; E01F; E01F15/00; E01F15/02; E01F15/08; E01F15/081; E01F15/083
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
91 words
A structural member comprising an elongated, relatively thin outer U-shaped shell member open at one end between the legs thereof integrally pre-formed of polymer concrete, and having an outer surface defining a desired outer peripheral shape of a median barrier for highway construction, and having spaced apart openings in the top of the shell member, the shell member being adapted for end-to-end arrangement with other shell members along a road subsurface to form an interior space therebeneath for receiving filler material which does not adhere to the polymer concrete shell members.
Claim 2
Dependent Claim
91 words
A structural member comprising an elongated, relatively thin outer U-shaped shell member open at one end between the legs thereof integrally pre-formed of polymer concrete, and having an outer surface defining a desired outer peripheral shape of a median barrier for highway construction, and having spaced apart openings in the top of the shell member, the shell member being adapted for end-to-end arrangement with other shell members along a road subsurface to form an interior space therebeneath for receiving filler material which does not adhere to the polymer concrete shell members.
Claim 3
Dependent Claim
33 words
The structural member according to claim 1, wherein separately moulded, pre-formed polymer concrete caps are supplied which fit into and are adapted to seal the openings in the top of the shell member.
Claim 4
Dependent Claim
15 words
The structural member according to claim 1, wherein the pre-formed shell member incorporates reinforcing means.
Claim 5
Dependent Claim
146 words
A highway median barrier construction on a road surface or bridge structure, comprising: (a) a series of elongated, relatively thin outer U-shaped shell members open at one end between the legs thereof placed in end-to-end arrangement along the road or bridge surface, each shell member being integrally pre-formed of polymer concrete, and having an outer surface corresponding to the desired peripheral shape of the median barrier, and having spaced apart openings in the top of the shell, the shell members defining an interior space therebeneath; (b) an inner core in the interior space consisting of solid filler material which does not adhere to the inner surface of the shell members, but contacts at least the inner side surfaces thereof; (c) polymer concrete sealing the openings in the top of the shell members; and (d) means securing the barrier construction to the road surface or bridge structure.
Claim 6
Dependent Claim
146 words
A highway median barrier construction on a road surface or bridge structure, comprising: (a) a series of elongated, relatively thin outer U-shaped shell members open at one end between the legs thereof placed in end-to-end arrangement along the road or bridge surface, each shell member being integrally pre-formed of polymer concrete, and having an outer surface corresponding to the desired peripheral shape of the median barrier, and having spaced apart openings in the top of the shell, the shell members defining an interior space therebeneath; (b) an inner core in the interior space consisting of solid filler material which does not adhere to the inner surface of the shell members, but contacts at least the inner side surfaces thereof; (c) polymer concrete sealing the openings in the top of the shell members; and (d) means securing the barrier construction to the road surface or bridge structure.
Claim 7
Dependent Claim
24 words
The construction according to claim 4, wherein the shell members in end-to-end arrangement are separated by compressible gasket means, adhered to the ends thereof.
Claim 8
Dependent Claim
18 words
The highway median barrier construction according to claim 4, wherein the inner core consists of cast-in-place hydraulic concrete.
Claim 9
Dependent Claim
30 words
The highway median barrier construction according to claim 4, wherein the polymer concrete sealing the openings in the top of the shell members consists of separately pre-formed plugs or caps.
Claim 10
Dependent Claim
28 words
The highway median barrier construction according to claim 4, wherein the polymer concrete sealing the openings in the top of the shell members consists of cast-in-place polymer concrete.
Claim 11
Independent Claim
129 words
The method of forming a median barrier construction which comprises: (a) securing a series of elongated U-shaped shell members open at one end between the legs thereof in end-to-end arrangement for a desired distance along a road subsurface or bridge structure at appropriate positions to separate traffic lanes, each of said U-shaped shell members being integrally pre-formed of polymer concrete, and having an outer surface defining the desired outer peripheral shape of the median barrier, and having spaced apart openings in the top thereof, to define an interior space beneath said shell members; (b) casting a material into the interior space through said openings, said material contacting at least the inner side surfaces of the shell members but not adhering thereto; and (c) sealing the openings with polymer concrete.
Claim 12
Independent Claim
129 words
The method of forming a median barrier construction which comprises: (a) securing a series of elongated U-shaped shell members open at one end between the legs thereof in end-to-end arrangement for a desired distance along a road subsurface or bridge structure at appropriate positions to separate traffic lanes, each of said U-shaped shell members being integrally pre-formed of polymer concrete, and having an outer surface defining the desired outer peripheral shape of the median barrier, and having spaced apart openings in the top thereof, to define an interior space beneath said shell members; (b) casting a material into the interior space through said openings, said material contacting at least the inner side surfaces of the shell members but not adhering thereto; and (c) sealing the openings with polymer concrete.
Claim 13
Dependent Claim
14 words
The method according to claim 9, wherein the filler material is cast-in-place hydraulic concrete.
Claim 14
Dependent Claim
17 words
The method according to claim 9, wherein the openings are sealed with polymer concrete plugs separately pre-cast.
Claim 15
Dependent Claim
15 words
The method according to claim 9, wherein the openings are sealed with cast-in-place polymer concrete.
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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) | 1985-09-06 | 1986-03-08 | 1986-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-06 | 1990-03-08 | 1990-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-06 | 1994-03-08 | 1994-09-07 | $7700.00 | Window Closed / Lapsed |