Joints and connections – Flexibly connected rigid members – Helical spring type coupling
Patent
1987-06-29
1988-04-12
Kundrat, Andrew V.
Joints and connections
Flexibly connected rigid members
Helical spring type coupling
403 2, 403291, 40608, F16D 100
Patent
active
047370483
ABSTRACT:
A road sign attachment and repair apparatus having first and second U-shaped brackets adapted to be attached to a wooden sign post near the bottom thereof to form a resilient joint or to form such resilient joint at a place where a wooden sign post has been broken off. Four coil springs are attached to one of the U-shaped brackets at one end thereof and to the other U-shaped bracket at the other end thereof.
REFERENCES:
patent: 2949324 (1960-08-01), Birge et al.
patent: 3875720 (1975-04-01), Russell
patent: 4033536 (1977-07-01), Hillstrom
patent: 4161723 (1979-07-01), DeVittori
patent: 4341488 (1982-07-01), Ryan
patent: 4636109 (1987-01-01), Clausen et al.
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