Multi-component delivery apparatus
Patent 4494676 Issued on January 22, 1985. Estimated Expiration Date: 
January 22, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 22, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3889850 3908862 Variable proportional metering apparatus Liquid feeding control method Mixture metering machine Device for carrying out high precision dilutions and dosages of liquids, particularly biological liquids Variable ratio dispensing apparatus System for mixing concentrate and water to form fountain solution for offset printing presses Patent #: 4394870 InventorApplicationNo. 06/283560 filed on 07/15/1981US Classes:222/63, Motor control222/135, With discharge assistant for each source417/429Adjustment with respect to common driveExaminersPrimary: Rolla, Joseph J.Assistant: Noland, Kenneth Attorney, Agent or FirmInternational ClassesF04B 13/00 (20060101)F04B 13/02 (20060101) Foreign Application Priority Data1980-08-04 DEAbstractThe apparatus consists of a plurality of piston pumps having preset displacement ratios. A motor mechanism is connected to each of the pumps. In addition, there is a control mechanism connected to each pump ensuring that all pistons execute their previous stroke completely before being reversed and that they all start their following stroke at exactly the same moment. Furthermore there is another control mechanism controlling the speed of each piston so that all pistons complete their respective strokes simultaneously. A mechanism for adjusting and varying the pump displacement is also provided. | |
