Supports – With component frangible or deformable on impact or overload
Reexamination Certificate
2002-07-11
2004-01-20
Ramirez, Ramon O. (Department: 3632)
Supports
With component frangible or deformable on impact or overload
C052S098000, C040S607060
Reexamination Certificate
active
06679469
ABSTRACT:
CROSS-REFERENCES TO RELATED APPLICATIONS
Not Applicable.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not Applicable
MICROFICHE APPENDIX
Not Applicable
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to the field of road signs. More specifically, the invention comprises a road sign stand having a specially designed base portion which allows it to break in a controlled fashion when struck by a vehicle.
2. Description of the Related Art
Roadside signs have been in common use for many decades. The use of portable signs to alert drivers as to construction zones and other hazards have become increasingly common. While these signs serve a useful purpose, they also present a hazard if struck. Accordingly, many prior art designs are configured to break away if struck by a moving vehicle.
BRIEF SUMMARY OF THE INVENTION
The present invention comprises a modular sign stand. It consists primarily of a base portion attached to a breakaway column. The base portion is intended to be driven into the ground. The breakaway column supports an attached sign. The breakaway column is pierced by one or more breakaway holes at a position just above the ground. When the sign stand is struck by a moving vehicle, the one or more breakaway holes cause the breakaway column to fracture in a predictable fashion near its attachment to the base. Several embodiments are disclosed, including one forming the breakaway column and the base as one integral unit.
REFERENCES:
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patent: 4928446 (1990-05-01), Alexander, Sr.
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patent: 5794910 (1998-08-01), Granger
patent: 5887842 (1999-03-01), Granger
patent: 5957425 (1999-09-01), Conway et al.
patent: 6068233 (2000-05-01), Green
patent: 6113055 (2000-09-01), Salman
patent: 6457895 (2002-10-01), Salman
Florida Department of Transportation
Horton John Wiley
Marsh Steven
Ramirez Ramon O.
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