Traversing hoists – Overhead – Self-propelled trolley
Reexamination Certificate
2004-12-06
2008-12-09
Brahan, Thomas J. (Department: 3654)
Traversing hoists
Overhead
Self-propelled trolley
C700S213000
Reexamination Certificate
active
07461753
ABSTRACT:
A practical intelligent assist device is provided that eliminates the complex use of force sensing weigh cells and vector interpreting software. By simplifying the input to a series of traditional voltage inputs, i.e. 1-4 volt signals, the use of standard available control componentry becomes available. Utilizing a series of such simplified inputs, including a load angle feedback, the processing of the vector math can be accomplished within a programmable logic controller (PLC). Outputs can then be simply generated to control a series of 0-60 Hz digital signals to drive direct drive motors.
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Gatta Raymond P.
Myers Matthew L.
Yanko Marc W.
Brahan Thomas J.
Gugliotta, PE, Esq. John D.
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