US4557624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snow plowable pavement marker
Assignee: Individual
•
Filing: 1983-09-09
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Granted: 1985-12-10
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Expires: 2003-09-09
Abstract
Abstract A snow plowable pavement marker having a low-profile, including a base member comprising a generally flat circular element having an annular peripheral depending rim adapted to be installed in an annular drilled recess in a highway pavement, the flat lower surface being disposed, in use, directly upon the road surface and the upper surface of the base member providing cavities supporting reflective devices, and the top surface of the base member defining an inclined ramp surface from at least two directions of approach when installed in place in a pavement.
Inventors
- 👤 Floyd E. Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:28
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/50; E01F9/553
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
141 words
A reflector for surface mounting on a roadway comprising a circular plate with a generally flat undersurface with a peripheral annular flange depending therefrom for insertion in and adhesive attachment to an annular trough in the road surface, said flat undersurface extending to said flange throughout its periphery whereby substantially the entire flat surface rests upon and is adhesively attached to the road surface, a generally annular sloping upper surface on said plate providing a centrally positioned rounded mound surface, a reflector cavity formed in said mound and comprising a generally straight side wall adjacent the diameter and end walls perpendicular thereto, the bottom of said cavity being adjacent said undersurface, and reflector means secured in said cavity with the upper surface thereof located below the top of said straight side wall, and the lower surface located adjacent the road surface.
Claim 2
Dependent Claim
141 words
A reflector for surface mounting on a roadway comprising a circular plate with a generally flat undersurface with a peripheral annular flange depending therefrom for insertion in and adhesive attachment to an annular trough in the road surface, said flat undersurface extending to said flange throughout its periphery whereby substantially the entire flat surface rests upon and is adhesively attached to the road surface, a generally annular sloping upper surface on said plate providing a centrally positioned rounded mound surface, a reflector cavity formed in said mound and comprising a generally straight side wall adjacent the diameter and end walls perpendicular thereto, the bottom of said cavity being adjacent said undersurface, and reflector means secured in said cavity with the upper surface thereof located below the top of said straight side wall, and the lower surface located adjacent the road surface.
Claim 3
Dependent Claim
30 words
The reflector of claim 1 wherein a pair of cavities are formed on opposite sides of said side wall and wherein oppositely facing reflector means are secured in said cavities.
Claim 4
Dependent Claim
15 words
The reflector of claim 1 wherein the reflector is secured in said cavity by adhesive.
References Cited (Backward Citations)
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Cited
US3332327A
Cited
US3938903A
Cited
US4127346A
Cited
US4155666A
Cited
US4195945A
Cited
US4402628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-09 | 1989-06-10 | 1989-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-09 | 1993-06-10 | 1993-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-09 | 1997-06-10 | 1997-12-10 | $7700.00 | Window Closed / Lapsed |