Supports – Stand – Standard type
Patent
1975-03-27
1976-10-19
Hafer, Robert A.
Supports
Stand
Standard type
60481, F16M 1300
Patent
active
039866920
ABSTRACT:
An apparatus for supporting articles comprises a deformable, rod-shaped support assembly including a plurality of links interconnected by articulated joints, a plurality of constrictor plates each disposed at the respective articulated joint of the links, the constrictor plates being operable to lock or unlock the articulated joints in response to a hydraulic pressure applied thereto, a base for supporting the support assembly, one end of the support assembly being anchored to the base by a connector, a communication passage extending through the links and their associated articulated joints from said one end to the free end of the support assembly, hydraulic supply means for admitting or displacing hydraulic fluid into or from the communication passage through a path in the base, an article mount fixedly connected with the free end of the support assembly for detachably mounting an article thereon. When the hydraulic pressure within the communication passage is reduced, the articulated joints associated with the respective links are released from the constrictor plates for free movement, thereby enabling the attitude of the support assembly to be changed by externally deflecting or bending it. Conversely, when the hydraulic pressure within the communication passage is increased, the constrictor plates lock the articulated joints between adjacent links, whereby the support assembly is maintained immobile.
REFERENCES:
patent: 1827432 (1931-10-01), Hundemer
patent: 2638362 (1953-05-01), Sherman et al.
patent: 2693378 (1954-11-01), Beyer
patent: 3001367 (1961-09-01), Bartholomew
patent: 3168274 (1965-02-01), Street
patent: 3255587 (1966-06-01), London
patent: 3529797 (1970-09-01), Street
patent: 3584822 (1971-06-01), Oram
patent: 3638973 (1972-02-01), Poletti
Hafer Robert A.
Olympus Optical Co,. Ltd.
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