Patent ID: 11866312
Assignee: CREDENCE ENGINEERING, INC
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 4:
5. Apparatus for raising and lowering a needle used to dispense a fluid into a plurality of containers, the apparatus comprising:
a) a frame;
b) a pivot arm rotatably coupled to the frame about a pivot axis, the pivot arm having first and second opposing ends, the pivot axis being located between the first and second opposing ends of the pivot arm;
c) a dispensing needle coupled to the pivot arm for movement therewith, the dispensing needle being coupled to the second end of the pivot arm opposite the first end of the pivot arm;
d) a motor supported by the frame, the motor including a rotatable motor shaft;
e) a cam coupled to the rotatable motor shaft for being rotated by the motor, the cam engaging a first end of the pivot arm for causing the pivot arm to rotate about its pivot axis;
whereby operation of the motor rotates the cam and moves the pivot arm to raise and lower the needle;
wherein:
a) the cam has a circular periphery;
b) the cam is eccentrically mounted to the rotatable motor shaft; and
c) the first end of the pivot arm includes a yoke for receiving the cam.