Weighing scales – Weigher responsive material control – Discharge valve or gate
Patent
1991-08-12
1992-11-17
Miller, Jr., George H.
Weighing scales
Weigher responsive material control
Discharge valve or gate
177112, G01G 1316, G01G 1334
Patent
active
051635259
ABSTRACT:
An automated gross bagging scale apparatus combining manual actuation of the feed gate and a mechanical trigger mechanism with digital scale and control components permitting easy conversion of a fully mechanical bagging scale to a digital scale. The combination of mechanical features and digital control includes a load cell, digital controller and a solenoid actuated plunger rod which initiates the release of the feed gate arm from its latched open position to return to its normally closed position closing the gate which allows material to flow into the bagging chute. An electrical switch is actuated between on and off position by movement of the feed gate arm in a manner coordinated to permit the solenoid actuated plunger to be energized only when the feed gate arm is in the open position.
REFERENCES:
patent: 420789 (1890-02-01), Hart
patent: 2904304 (1959-09-01), Zwoyer et al.
patent: 4193465 (1980-03-01), Henry
Marshall Donald G.
Marshall Donald O.
Kremblas, Jr. Francis T.
Miller Jr. George H.
The Don Marshall Co.
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