US PATENT SUBCLASS 5 / 614
.~.~ Hydraulically operated

Current as of: June, 1999
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5 /   HD   BEDS

600  DF  INVALID BED OR SURGICAL SUPPORT {12}
613  DF  .~ Sectional user supporting surface {3}
614.~.~ Hydraulically operated {1}
615  DF  .~.~.~> Fluid inflatable bag adjusts position of support section

DEFINITION

Classification: 5/614

Hydraulically operated:

(under subclass 613) Subject matter in which at least one section of the supporting surface is driven by fluid means in motion or under pressure.

(1) Note. This subclass includes devices in which a hydraulic system, such as a fluid operated cylinder, is operatively connected to at least one of the sections to move the section, and thereby reposition a user's body.