Patent US4852511A successfully refreshed from Google Patents.
US4852511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable traffic barrier
Assignee: Individual
•
Filing: 1988-02-29
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Granted: 1989-08-01
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Expires: 2008-02-29
Abstract
Abstract A traffic barrier is disclosed copmrising: two high visibility panels supported by a pair of legs joined by a cross-member, and a flexible substantially closed container which is supported by the legs or cross-members and adapted to be filled with a liquid for adding to the weight and stability of the structure. The liquid container allows the barrier to be easily moved, transported, and placed in use.
Inventors
- 👤 Art Look
- 👤 Joseph Valenti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:07
CPC Classifications
E; E01; E01F; E01F13/00; E01F13/02; Y; Y10; Y10S; Y10S248/00; Y10S248/91
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
121 words
A portable road barrier comprising: at least one high visibility panel; legs for supporting said at least one panel; a flexible substantially closed container; means for supporting said container from said legs, such that said container is located beneath said at least one panel and between said legs when said barrier is positioned for use; fill means provided on said container for readily introducing a fluid into said container, whereby the weight of said fluid will result in a low center of gravity for said barrier, so as to stabilize said barrier during use; discharge means provided on said flexible container for discharging said fluid from said container, whereby the weight of said barrier may be reduced for moving and storage.
Claim 2
Dependent Claim
121 words
A portable road barrier comprising: at least one high visibility panel; legs for supporting said at least one panel; a flexible substantially closed container; means for supporting said container from said legs, such that said container is located beneath said at least one panel and between said legs when said barrier is positioned for use; fill means provided on said container for readily introducing a fluid into said container, whereby the weight of said fluid will result in a low center of gravity for said barrier, so as to stabilize said barrier during use; discharge means provided on said flexible container for discharging said fluid from said container, whereby the weight of said barrier may be reduced for moving and storage.
Claim 3
Dependent Claim
128 words
The portable road barrier of claim 1, wherein there are two high visibility panels, and two pairs of legs, each of which pairs includes a first leg and a second leg, each of said panels extends between one of the legs of each of said pairs of legs, said first leg and said second leg of each of said pairs of legs being pivotally connected to each other, said container having at least two ends, including a first end and a second end, said means for supporting said container from said legs supporting said first end of said container from said first leg of each of said pairs of legs, and said second end of said container form said second leg of each of said pairs of legs.
Claim 4
Dependent Claim
58 words
The portable road barrier of claim 2, wherein said means for supporting said container from said legs includes at least a first cross-member and a second cross-member, said first cross-member extending between said first legs of each of said pairs of legs, and said second cross-member extending between said second legs of each of said pairs of legs.
Claim 5
Dependent Claim
42 words
The portable road barrier of claim 3, wherein said container is formed with tubular portions at each end, each of said tubular portions receiving one of said first and second cross-members, whereby the container is supported from said legs by said cross-members.
Claim 6
Dependent Claim
19 words
The portable road barrier of claim 1, wherein said fill means comprises a tubular member extending from said container.
Claim 7
Dependent Claim
24 words
The portable road barrier of claim 5, wherein said tubular member extends upwardly from said container adjacent one of said first and second cross-members.
Claim 8
Dependent Claim
17 words
The portable road barrier of claim 6, wherein said tubular member is provided with a closure means.
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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) | 1992-07-31 | 1993-01-30 | 1993-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-31 | 1997-01-30 | 1997-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-31 | 2001-01-30 | 2001-08-01 | $7700.00 | Window Closed / Lapsed |