Pumps – Condition responsive control of pump drive motor – By control of electric or magnetic drive motor
Patent
1996-05-06
1998-09-15
Thorpe, Timothy
Pumps
Condition responsive control of pump drive motor
By control of electric or magnetic drive motor
417313, 417415, 417360, 417 63, 604152, F04B 4900
Patent
active
058070753
ABSTRACT:
An ambulatory volumetric pump apparatus includes a housing defining a channel therethrough having an inlet for receiving a fluid and an outlet for discharging a fluid, a pump operable to pump fluid through the channel, a motor for operating the pump in response to control signals, and a programmable microprocessor for selectively supplying control signals to the motor to cause the motor to operate. The programmable microprocessor is "programmed" by manually setting rotatable knobs having faces which extend through but are generally flush with the housing exterior surface. The knobs include indicia to provide a visual display of the setting of the knobs and thus of the parameters of operation of the pump. An under-pressure sensor is disposed after the inlet of the channel to detect a suction or vacuum in the channel and to signal the microprocessor if such condition is detected. An over-pressure sensor is disposed before the outlet of the channel to signal the microprocessor if greater than expected pressure is detected in the channel. The microprocessor then sounds an alarm, shuts off the motor, or both.
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Davis Clark C.
Jacobsen Stephen C.
Miles Scott D.
Korytnyk Peter G.
Sarcos, Inc.
Thorpe Timothy
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