Apparatus for dispensing a plurality of powders and method of compounding substances
First Claim
Patent Images
1. An apparatus for dispensing a plurality of materials comprising:
- a plurality of containers for holding the materials, a plurality of pumps, each pump connected to a container or having a connector for releasably connecting a container to the respective pump, wherein at least some of the pumps comprise a pump chamber housing at least two pump screws including one screw having a relatively large dispensing capacity and another screw having a relatively small dispensing capacity, the pump chamber being in communication with its respective container thereby making the capacities of at least some of the pumps selectable.
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Accused Products
Abstract
An apparatus for dispensing a plurality of powders, such as colorants for paint, caulking or grout or components of cosmetics, comprising a plurality of containers for holding the powders, a plurality of metering powder pumps, connected to a container or having a connector for releasably connecting a container to the respective powder pump, wherein the capacity of the metering powder pump is selectable.
101 Citations
27 Claims
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1. An apparatus for dispensing a plurality of materials comprising:
a plurality of containers for holding the materials, a plurality of pumps, each pump connected to a container or having a connector for releasably connecting a container to the respective pump, wherein at least some of the pumps comprise a pump chamber housing at least two pump screws including one screw having a relatively large dispensing capacity and another screw having a relatively small dispensing capacity, the pump chamber being in communication with its respective container thereby making the capacities of at least some of the pumps selectable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of compounding substances comprising:
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providing an apparatus comprising a plurality of containers, each container holding a material, the apparatus also comprising a plurality of pumps and at least one motor, each pump linked to one of the containers, wherein at least some of the pumps comprise at least two pump screws including a first pump screw having a relatively large dispensing capacity and a second pump screw having a relatively small dispensing capacity, thereby making the capacities of at least some of the pumps selectable, dispensing a first amount of material into a receptacle by means of a first pump screw of a selected pump, weighing a first amount of material dispensed into the receptacle, comparing the first amount dispensed with a desired amount and calculating a first difference, dispensing a second amount into the receptacle using the small pump screw of the selected pump, weighing the second amount of material dispensed into the receptacle, comparing the second amount with the first difference and calculating a second difference, using at least the second difference to adjust operation of the motor for said pump in future dispenses. - View Dependent Claims (21, 22, 23, 24, 25)
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26. A method of dispensing a plurality of ingredients utilizing individually controlled dispense pumps drawing materials from separate material containers, the pumps positioned to dispense to a common receptacle with a weighing device associated with the receptacle and a computer controlling operation of the pumps, each pump comprising a large pump screw and a small pump screw, the method comprising:
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determining a first amount of material to be dispensed into the container, operating a large pump screw of a selected pump to draw a first amount of material from said container and dispensing first amount to said receptacle in accordance with a first program stored on said computer which relates a parameter of the large pump screw operation, weighing an actual amount dispensed to said receptacle, comparing the actual amount to the first amount, determining a first difference between the actual and first amounts, operating the small pump screw of the selected pump to move the first difference between the actual and first amounts of said material to said receptacle in accordance with a second program stored on said computer which relates to a parameter of the small pump screw operation, weighing a second actual amount dispensed to said receptacle, comparing the second actual amount to the first difference, determining a second difference between the first difference and second actual amounts to provide a deviation determination for the large small screw, utilizing said deviation determination for the small pump screw as a modifier for future dispenses from said container to said receptacle through controlled operation of the large small screw of said selected pump, selecting a second pump and a second ingredient to be dispensed and repeating the operating, weighing, comparing, determining and utilizing for said second pump.
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27. A method of compounding cosmetics formulations comprising:
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providing an apparatus comprising a plurality of containers holding materials, and a plurality of pumps, at least one pump comprising a large pump screw and a small pump screw that are linked to a large orifice and a small orifice respectfully, dispensing a first amount of one of the materials into a receptacle by means of the large pump screw through the large orifice, weighing the dispensed amount, comparing the dispensed amount with predetermined desired amount, using a difference between the dispensed amount and the desired amount to calculate new amount to be dispensed and operating the small pump screw to dispense the new amount through the small orifice.
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Specification