Patent ID: 11913562
Assignee: SANCTUARY COGNITIVE SYSTEMS CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 19:
20. A robot comprising
a robot body;
a hydraulic control system physically coupled to the robot body;
a hydraulically-actuated component physically coupled to the robot body, the hydraulically-actuated component operable to cause a motion of at least a portion of the robot; and
a hydraulic assembly comprising:
a hydraulic valve, the hydraulic valve comprising:
a valve body;
a first cylindrical chamber within the valve body;
a first cylindrical spool within the first cylindrical chamber, the first cylindrical spool rotatable about a longitudinal axis between at least a first position and a second position, the longitudinal axis parallel to a longitudinal axis of the first cylindrical chamber, the first cylindrical spool comprising:
a first landing having a first thickness parallel to the longitudinal axis of the first cylindrical chamber; and
a first eccentric channel having a first length that extends around a first portion of an outer circumferential surface of the first landing and a first width less than the first thickness of the first landing;

a first inlet to the hydraulic valve;
a first outlet from the hydraulic valve, wherein:
in the first position, the first inlet and the first outlet are fluidly coupled by the first eccentric channel to allow a flow of a hydraulic fluid circumferentially around the first landing from the first inlet to the first outlet within the hydraulic valve; and
in the second position at least one of the first inlet and the first outlet is obstructed by a second portion of the outer circumferential surface of the first landing to prevent the flow of the hydraulic fluid from the first inlet to the first outlet within the hydraulic valve; and

a motor assembly operable to rotate the first cylindrical spool within the first cylindrical chamber between at least the first position and the second position.