Abstract: A vibratory feeder system is disclosed which employs control circuitry for controlling one or a plurality of vibratory feeders such that product is discharged at a constant weight per unit time. This is preferably achieved by deriving a weight analog representative of product weight and then using this information for controlling product velocity as by modulating the tray velocity or varying the flow of product from a supply source to the tray.

Abstract: A pressurized mixer and dispenser system for liquid shampoo and the like hair treating fluids wherein an electric pump is used to withdraw liquid concentrate directly from its supply container for admixing with pressurized tap water in a mixing chamber utilizing both jet stream interaction and filtering through a baffle element of a plastic mesh to achieve intimate mixing as diluted concentrate is drawn from the system by the use of one or more associated station dispensing guns, either singly or in simultaneous use, without the need of a mixed concentrate holding tank.

Abstract: This invention relates to a device adapted to be attached to a conventional transfusion tube of a blood-transfusion apparatus, said device permitting the drop-by-drop regulation and control of the flow-rate and comprising a mechanical pump comprising a plurality of rollers rotatably mounted around the periphery of a disc rotatably mounted within a casing chamber, said chamber having the same diameter as the envelope defined by said rollers, said casing having an opening therein and comprising a slidable member in said opening adapted to be biased by resilient means against said rollers, thus permitting the interposition between said slidable member and said rollers of transfusion tubes of different diameters. An air-bubble detector is provided which stops the pump if an air bubble is present in the transfusion tube, and the failure of any electrical or mechanical member actuates an optical and acoustic alarm signal.

Abstract: A leak detection apparatus for a dispensing apparatus having a pump and a pressure-sensing apparatus with an output switch responsive to a predetermined pressure has a pump interrupter circuit with a control input. A pump interrupter control circuit has an input and an output connected to the control input of the pump interrupter circuit. A timing circuit has an output, and an input for initiating a signal at the output for a predetermined period of time. The timing circuit is connected through the pressure-sensing apparatus output to the input of the pump interrupter control circuit such that a leak in the dispensing apparatus will cause closure of the output switch, transferring the signal at the output of the timing circuit during the predetermined period of time to the input of the pump interrupter control circuit causing the pump interrupter circuit to interrupt the operation of the pump.

Abstract: A pump speed control for filling machines in which the rotational speed of the pump is varied between its intake stroke and the discharge stroke by selectively controlling the speed of the driving motor as a function of the rotational position of the output shaft of the driving motor.

Abstract: Teeming of molten metal from a laden vessel into a receiving vessel such as an ingot mould or tundish is accomplished at a controlled rate by detecting the changing weight of one of the vessels and deriving a valve control signal by comparing a changing weight signal with a presettable reference signal, the valve control signal being employed to adjust the setting of a sliding gate valve through which molten metal passes as it is teemed into the receiving vessel.