Graco Inc.

Other

Dennis L McCormick

Vernon K Quarve

Vernon K Ouarve

Robert A Kimber

the device is provided for measuring an exact amount of fluid in a dispensing operation, the device being made easily portable and self-contained. The fluid motor has a device on it to measure the number of rotations of the motor and that number of rotations is translated through appropriate circuitry into a corresponding fluid volume. Initiation of the dispense cycle by means of manually opening a handle latches open a valve which stays open until the desired predetermined volume of fluid has been dispensed. At that point, a solenoid is energized with a brief electrical pulse which unlatches the valve and allows it to close quickly, thereby assuring that an extremely accurate amount of fluid has been dispensed.

Fluid dispensing device

A liquid flow meter of the type having a positive displacement rotatable member responsive to liquid flow, with a permanent magnet affixed to the rotatable member. A magnetically-operable reed switch is located proximate the reed switch, but outside the liquid flow housing, and battery-operated circuits accumulate counts of reed switch closures, and display the counts in units representative of liquid flow volumes.

Liquid flow meter

A railroad dump car, such as a side dump rail car, uses hydraulic actuators to tilt the dump body to permit unloading of the contents of the dump body. A hydraulic booster pump is connected to the auxiliary air supply of the train. The booster pump converts the relatively low pressure (about 90 psi) air to a high hydraulic pressure (about 3000 psi). In another embodiment, a bidirectional rotary pump driven from the rail car axle pumps the hydraulic fluid. The booster pump (or the bidirectional rotary pump) pumps hydraulic fluid from a hydraulic reservoir to a hydraulic accumulator, which receives the hydraulic fluid and stores the hydraulic fluid under pressure. When the hydraulic accumulator is fully charged, the operator triggers a valve to cause dumping. The valve causes the hydraulic accumulator means to supply the pressurized hydraulic fluid to the hydraulic actuators, which pivot the dump body with respect to the car frame to unload the contents of the dump body.

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Mendota Heights, MN, United States of America

Dennis L McCormick