US PATENT SUBCLASS 60 / 384 .~ Expansible chamber type volumetric responsive measuring device in series with or driven by output motor operates the motor controller
Current as of: June, 1999
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.~ Expansible chamber type volumetric responsive measuring device in series with or driven by output motor operates the motor controller
DEFINITION
Classification: 60/384
(under subclass 325) Apparatus including a source of pressurized motive fluid for driving an output motor and having a distinct expansible chamber device: (1) in series with the output motor actuating a control terminating the
flow of motive fluid when it has passed a selected volume of fluid; (2) in series with the output motor establishing the rate of flow through the motor by externally operating the displacement device to pass fluid at a selected rate; or (3) connected to be driven by the output motor to measure the movement of the motor, the displaced liquid actuating a means controlling operation of the motor.
SEE OR SEARCH CLASS
91, Motors: Expansible Chamber Type,
388, for an expansible chamber motor having a fluid operated feedback to the motive fluid controller responsive to the working member position.