Supports – Stand – Standard type
Patent
1997-11-05
1999-10-26
Berger, Derek J.
Supports
Stand
Standard type
2481885, F16M 1100
Patent
active
059713410
ABSTRACT:
An adjustable leg system incorporating an inner tube assembly which readily and easily positions vertically in a surrounding and coaxially aligned outer tube assembly. The inner tube assembly is suspended concentrically to and on a counterbalance assembly contained partially within and concentric with the outer tube assembly. An actuating handle at the upper end of the positionable inner tube assembly operates a pushrod assembly which operates and influences a plurality of flat springs, one end of which engages between the inner tube assembly and the outer tube assembly to vertically lock the adjustable leg system in a triangulation configuration. During locking by the flat springs, glides spaced apart at about 120.degree. on the exterior surface of the inner tube assembly are brought to bear against the interior surface of the outer tube assembly. The flat springs are deformed by movement of the actuating handle to relieve intimate forced spring contact transmitted across the springs to allow for unimpeded vertical leg positioning.
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Berger Derek J.
Jaeger Hugh D.
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