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| Number | Title | Issue Date |
| 6913447 | Metering pump with varying piston cylinders, and with independently adjustable piston strokes A metering pump includes an actuating mechanism, and a plurality of piston cylinders coupled to the actuating mechanism. A first of the cylinders has a working volume that differs from a second of the cylinders. The actuating member is centrally located and the cyli... | 07/05/2005 |
| 4684040 | Rotary volumetric piston dispenser with adjustable camming assembly, and rinsing device A rotary volumetric piston dispenser is provided which receives material from a manifold assembly, portions that material while it traverses a path to a dispensing location, and dispenses the portioned material at the dispensing location. The rotary volum... | 08/04/1987 |
| 4503995 | Quantity-metering depositor for flowable food products A positive-displacement volumetric metering depositor particularly but not exclusively useful in food production equipment has a continuously-rotating cylinder with a diametrically-disposed metering piston or plunger having the general form of an elongate... | 03/12/1985 |
