Rotary expansible chamber devices – Interengaging rotating members – Like rotary members
Patent
1992-10-19
1994-03-29
Bertsch, Richard A.
Rotary expansible chamber devices
Interengaging rotating members
Like rotary members
F01C 118
Patent
active
052979458
ABSTRACT:
An oval gear pump for shear-sensitive fluids particularly suited for use in dispensing metered amounts of food syrups, condiments, or other thick or viscous liquids. The viscosity of some of such materials tends to degrade when excessive agitation is incurred. The gear pump minimizes such agitation by sweeping integrated masses of substantial volume between the inlet and the outlet. The pumping system also provides a flow-sensing device including a tubular magnet movable against spring pressure by fluid flow to an operated position. When the magnet is in the operated position, an adjacent external switch is operated to produce a signal indicating flow. The pumping system is particularly adapted for use in connection with ice cream dispensing machines.
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Loubier Robert J.
Zepp Lawrence P.
Bertsch Richard A.
Freay Charles
Xolox Corporation
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