Supports – Including energy absorbing means – e.g. – fluid or friction...
Patent
1994-05-23
1995-06-20
Ramirez, Ramon O.
Supports
Including energy absorbing means, e.g., fluid or friction...
248562, 248631, 267132, 362413, F16M 300
Patent
active
054255260
ABSTRACT:
A telescopic tube mounting device, which includes an outer tube having a coupling at the top, an inner tube made to slide in and out of the outer tube and locked at the desired elevation by a lock screw on the coupling, a C-shaped locating ring fastened to the bottom end of the inner tube to prohibit disconnection of the inner tube from the coupling, a stopper sealed in the bottom end of the inner tube and having a longitudinal through hole with a tapered top orifice for passing air in and out of the inner tube to buffer the falling speed of the inner tube when the inner tube is collapsed.
REFERENCES:
patent: 4079978 (1978-03-01), McMullin
patent: 4500075 (1985-02-01), Tsuchiya et al.
patent: 4896866 (1990-01-01), Legrand et al.
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