1
Ronald J Ricciardi, John S Laidlaw: Materials feeding system with level sensing probe and method for automatic bulk density determination. Acrison, Davis Hoxie Faithfull & Hapgood, June 13, 1995: US05423455 (69 worldwide citation)

An improved system and method for gravimetrically feeding material at a controlled rate. The material to be fed, which can be either a dry solid or a liquid, is maintained in a supply vessel. A probe disposed in the supply vessel detects the level of the material, sending a high level signal to a co ...


2
Ronald J Ricciardi, Angelo Ferrara, Joseph L Hartmann: Weigh feeder system. Edwin T Grimes, July 1, 1980: US04210963 (61 worldwide citation)

Disclosed herein is an automatically controlled weigh feeding apparatus including a container prefilled with a substance, a device for discharging the substance from the container at a controllable weight, apparatus for weighing the container and its contents and for producing an electrical signal p ...


3
Ronald J Ricciardi, Angelo Ferrara, Joseph L Hartmann: Weigh feeder system. Edwin T Grimes, October 18, 1977: US04054784 (46 worldwide citation)

Disclosed herein is an automatically controlled weigh feeding apparatus including a container prefilled with a substance, a device for discharging the substance from the container at a controllable rate, apparatus for weighing the container and its contents and for producing an electrical signal pro ...


4
Ronald J Ricciardi, Angelo Ferrara, Joseph L Hartmann, Gary R Lauterbach: Weigh feeding apparatus. Acrison Incorporated, Davis Hoxie Faithfull & Hapgood, March 23, 1982: US04320855 (40 worldwide citation)

Disclosed herein is an automatically controlled weigh feeding apparatus including a container for prefilling with a substance, a device for discharging the substance from the container at a controllable rate, apparatus for weighing the substance being discharged and for producing an electrical signa ...


5
Ronald J Ricciardi: Fluid mixing apparatus and method of mixing. Acrison, Davis Hoxie Faithfull & Hapgood, April 27, 1993: US05205647 (40 worldwide citation)

A mixing apparatus for mixing two or more fluids into a homogeneous mixture. A rotor is mounted on a drive shaft coaxially within a cylindrical casing. Bores run the length of the rotor. Mixing conduits lead from the bores to outside the rotor. A cylindrical sleeve with slots is mounted coaxially wi ...


6
Ronald J Ricciardi, Angelo Ferrara, Joseph L Hartmann, Gary R Lauterbach: Weigh feeding apparatus. Acrison Incorporated, Edwin T Grimes, September 5, 1978: US04111272 (35 worldwide citation)

Disclosed herein is an automatically controlled weigh feeding apparatus including a container for prefilling with a substance, a device for discharging the substance from the container at a controllable rate, apparatus for weighing the substance being discharged and for producing an electrical signa ...


7
Ronald J Ricciardi: Metering and wetting system. Edwin T Grimes, March 7, 1978: US04077612 (28 worldwide citation)

A metering and wetting system for polyelectrolyte, dry powders or the like, characterized by a volumetric feeder, a pressurized pneumatic system for atomizing the dry polyelectrolyte received from the volumetric feeder, an air dryer assembly for removing moisture from the air supplied to said pneuma ...


8
Ronald J Ricciardi, Mark Bober: Mechanism for metering solid materials which flow in a manner similar to liquids. Acrison, Davis Hoxie Faithfull & Hapgood, February 14, 1989: US04804111 (23 worldwide citation)

An improved metering mechanism for metering highly aerated or fluidized solid materials in a controlled manner is disclosed. The mechanism consists of a bin discharger attached above a rotary feeder assembly. The bin discharger has two augers which rotate in opposite directions relative to one anoth ...


9
Ronald J Ricciardi: Wetting chamber. Acrison, Davis Hoxie Faithfull & Hapgood, February 17, 1987: US04643582 (20 worldwide citation)

The present invention provides a new wetting chamber for a metering and wetting system typically for polyelectrolyte polymer. Atmospheric air is used to disperse the polymer fed into the chamber by a suitable feeder and to generate air/water turbulence in the wetting chamber in which the polymer is ...


10
Ronald J Ricciardi, John Laidlaw: Wild-flow loss-in-weight weighing system. Acrison, Davis Hoxie Faithfull & Hapgood, September 19, 1989: US04867343 (20 worldwide citation)

The present invention relates to a continuous weighing system and more specifically to a combination of a "wild-flow" flow of material and a loss-in-weight monitoring system. An uncontrolled flow of material from a wild-flow stream is accurately weighed and discharged by the loss-in-weight system.