C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
318/25, 341/97
C03B 9/40 (2006.01) C03B 9/41 (2006.01) C03B 11/16 (2006.01) G05B 19/35 (2006.01)
Patent
CA 1276265
BCF/RCC/gm 15339 Servo-Control of Machine Motions in Manufacture of Glass Containers Abstract of the Disclosure A servo control system and method for controlling repetitious or oscillatory motion of a member in a glass manufacturing process between predetermined points. A desired trajectory between such points is first established as a function of time, and this trajectory is then loaded into a digital electronic memory as a plurality of discrete tra- jectory position signals arranged in an incremental series as a function of time. Control logic, which includes a real time oscillator, periodically accesses the memory so as to sequentially select and read therefrom the incremental tra- jectory position signals. These incremental signals are fed as a desired position control signal to a servo amplifier, which receives a second input from a position transducer coupled to the movable member and provides an amplifier output to a servo motor and thence to the member. i.
486514
Gowling Lafleur Henderson Llp
Owens-Illinois Inc.
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