US PATENT SUBCLASS 114 / 150
.~ Fluid pressure
Current as of: June, 1999
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DEFINITION
Classification: 114/150
Steering mechanism in which fluid-pressure is used to control the rudder, tiller, or steering wheel, etc., or to react upon the water through which the vessel moves. It includes all pneumatic, steam, and hydraulic means specific to ships and their structure and not so claimed as to be of general application in steam steering.
SEE OR SEARCH THIS CLASS, SUBCLASS:
146, for devices in which either hand or fluid pressure steering powers are used independently or simultaneously or for means for coupling one to the other.
SEE OR SEARCH CLASS
91, Motors: Expansible Chamber Type, appropriate subclasses for expansible chamber motors for operating steering mechanism.
418, Rotary Expansible Chamber Devices, for rotary expansible chamber motors for operating steering mechanism.
