Supports – Stand – Standard type
Patent
1993-10-14
1995-01-31
Ramirez, Ramon O.
Supports
Stand
Standard type
248157, 2481885, 29734418, 403109, 403377, F16M 1100
Patent
active
053853237
ABSTRACT:
A pair of rigid hollow tubular members are telescoped together with one of the members having a series of spaced-apart grooves running parallel to the axis and the other having a series of spaced-apart ribs running parallel to its axis with the ribs slidably engaged in the grooves and means for releasably applying radial force between the two tubular members to force the ribs and the grooves into tight engagement to frictionally lock the tubular members together in a very stable fashion so they support a load without wobbling yet can be released when necessary.
REFERENCES:
patent: 3007014 (1961-10-01), Bentman
patent: 3285207 (1966-11-01), Vom Hagen
patent: 3667716 (1972-06-01), Fries
patent: 4761092 (1988-08-01), Nakatani
patent: 5249881 (1993-10-01), Austin et al.
patent: 5285733 (1994-02-01), Waibel
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