Electronically controlled linear pump drive
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United States of America Patent
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May 24, 2016
Issued Date -
N/A
app pub date -
Jul 23, 2013
filing date -
Aug 15, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
Electronically controlled linear pump drive actuator for a dispensing pump has a servo motor unit having a stator with front and rear faces and a central hollow cavity, a rotor coaxially in the hollow cavity with a front portion having a front end with an open central bore and a shaft with a stepped diameter forming a rear extension, front and rear support members respectively for the front and rear faces, a support bearing in the rear member, a front bearing, and a position sensor; a ball screw drive mechanism having a nut connected with the rotor and a screw shaft having a front end section; a hollow cylinder attached to the front member's front end; an actuator member axially moveable in the hollow cylinder with a central rear part fixed to the front end section, and a hollow front part; and a pump plunger adaptor.
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