Patent US4723758A successfully refreshed from Google Patents.
US4723758A
Expired / Lapsed
US
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Safety covering for guide rails
Assignee: ZEMALUX ESTABLISHMENT
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Filing: 1985-09-30
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Granted: 1988-02-09
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Expires: 2005-09-30
Abstract
Abstract A safety covering for guide or guard rails has a plastic element of bright material. Besides a contour corresponding to the guide rail front side to be covered, tabs for engaging the guide rail edges from behind are provided at the longitudinal edges. A special reflecting insert can augment the optical effect. Signal surfaces applied additionally on the safety coverings at an angle of less than 90° can impart further optical information to drivers. By local application of such safety coverings on guide rails, optical traffic guidance can be enhanced and easily modified.
Inventors
- 👤 Uis W. Gehrig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:10
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/60; E01F9/658; E01F9/669; E01F15/00; E01F15/02; E01F15/04; E01F15/0453; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/2419; Y10T428/24198
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
83 words
Guard rail safety covering for mounting to a generally W-shaped guard rail having a generally U-shaped trough, said guard rail positioned along an edge of a roadway, comprising: a generally W-shaped, reflective, resilient member, having a generally U-shaped trough; fastening means for securing said resilient member to said guard rail; and reflective element means mounted within said U-shaped trough, at an angle which reflects light at one traveling said roadway, said reflective element means including reflective graphic indicia representative of highway road signs.
Claim 2
Dependent Claim
83 words
Guard rail safety covering for mounting to a generally W-shaped guard rail having a generally U-shaped trough, said guard rail positioned along an edge of a roadway, comprising: a generally W-shaped, reflective, resilient member, having a generally U-shaped trough; fastening means for securing said resilient member to said guard rail; and reflective element means mounted within said U-shaped trough, at an angle which reflects light at one traveling said roadway, said reflective element means including reflective graphic indicia representative of highway road signs.
Claim 3
Dependent Claim
23 words
The safety covering of claim 1 wherein said fastening means is selected from the group consisting of clamps, screws, bolts, rivets and snaps.
Claim 4
Dependent Claim
19 words
The safety covering of claim 1 wherein said resilient member further includes inwardly directed flanges along each longitudinal edge.
Claim 5
Dependent Claim
35 words
The safety covering of claim 3 wherein said fastening means include deforming said resilient member to snap into position over said guard rail, such that said inwardly directed flanges hold said resilient member in place.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
US4354772A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-02-08 | 1991-08-10 | 1992-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-08 | 1995-08-10 | 1996-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-08 | 1999-08-10 | 2000-02-09 | $7700.00 | Window Closed / Lapsed |