Work holders – Miscellaneous
Patent
1984-07-17
1986-05-20
Watson, Robert C.
Work holders
Miscellaneous
A61G 1300
Patent
active
045896429
ABSTRACT:
An operating table includes a support surface with several support surface sections hydraulically adjustable relative to one another, a support column for the support surface with a column head (16) on which head the support surface is supported for pivotal movement and hydraulic adjustment and with a column foot (14) which is connected with the column head (16) through a hydraulic lifting apparatus (18), and a hydraulic unit (24) for operating the lifting apparatus and the work cylinders for adjusting the support surface sections. The hydraulic unit (24) is arranged on the column head (16). The lifting apparatus (18) includes two antiparallel lifting cylinders (26, 28) arranged next to one another and connected in parallel with one another having similar interior cross sections, the piston rod (30) of one cylinder being connected with the column head (16) and the piston rod (32) of the other cylinder being connected with the column foot (14). The pressure fluid supply and exhaust for the lifting apparatus (18) takes place through the piston rod (30 ) connected with the column head (16).
REFERENCES:
patent: 3206188 (1965-09-01), Douglass
patent: 3609974 (1971-10-01), Lado
patent: 3672159 (1972-06-01), Sundin
patent: 4423664 (1984-01-01), Buchl
Jung Hans-Ulrich
Mussler Rudiger
Pfeuffer Reinhard
Schnelle Eberhard
Stierlen-Maquet AG
Watson Robert C.
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