Apparatus for dispensing a plurality of powders and method of compounding substances
First Claim
Patent Images
1. An apparatus for dispensing a plurality of flowable materials comprising:
- a plurality of containers for holding the materials, a plurality of pumps, connected to a container or having a connector for releasably connecting a container to the respective pump, wherein the capacity of the pump is selectable and at least some of the pumps comprise at least two pump screws, one screw having a relatively large dispensing capacity and the other screw having a relatively small dispensing capacity.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for dispensing a plurality of powders or flowable materials, such as colorants for paint, caulking or grout or components of cosmetics, comprising a plurality of containers for holding the powders or flowable materials, a plurality of metering pumps, connected to a container or having a connector for releasably connecting a container to the respective pump, wherein the capacity of the metering pump is selectable.
91 Citations
18 Claims
-
1. An apparatus for dispensing a plurality of flowable materials comprising:
a plurality of containers for holding the materials, a plurality of pumps, connected to a container or having a connector for releasably connecting a container to the respective pump, wherein the capacity of the pump is selectable and at least some of the pumps comprise at least two pump screws, one screw having a relatively large dispensing capacity and the other screw having a relatively small dispensing capacity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 14)
-
10. A method of compounding substances comprising:
-
providing an apparatus comprising a plurality of containers holding flowable materials, a plurality of metering pumps including at least one metering pump coupled to each container, each metering pump being driven by a stepper motor, at least some of the metering pumps comprising a large screw mechanism and a small screw mechanism, selecting a predetermined desired first amount of a first flowable material to be dispensed that is contained in a first container that is coupled to a first metering pump, dispensing an amount of the first material into a receptacle by means of the large screw mechanism of the first metering pump, weighing the dispensed amount, comparing the dispensed amount with the predetermined desired first amount, using a difference between the dispensed amount and the predetermined desired first amount to calculate a new amount to be dispensed and operating to dispense the new amount using the small screw mechanism of the first pump. - View Dependent Claims (11, 12, 13)
-
-
15. A method of dispensing a plurality of flowable cosmetics ingredients utilizing individually controlled dispense pumps drawing flowable material from separate 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 screw mechanism and a small screw mechanism, the method comprising:
-
operating the large screw mechanism of a selected pump in a controlled manner to move a predetermined assumed amount of a chosen flowable material less than a desired complete dispense amount of said material to said receptacle in accordance with a program stored on said computer which relates a parameter of the large screw mechanism operation to the predetermined assumed amount of flowable material, weighing an amount actually dispensed to said receptacle and determining an actual amount dispensed, comparing the actual amount dispensed to the predetermined assumed amount and determining a difference between the actual amount dispensed and the predetermined assumed amount to provide a first deviation determination between the predetermined assumed amount and actual dispensed amount for the selected pump, operating the small screw mechanism of a selected pump in a controlled manner to move the difference of the chosen flowable material to said receptacle. - View Dependent Claims (16)
-
-
17. A method of compounding substances comprising:
-
providing an apparatus comprising a plurality of containers holding flowable materials, and a plurality of metering pumps, each metering pump being linked to two orifices of different sizes including a large orifice and a small orifice, dispensing an amount of one of the materials into a receptacle by means of at least one of the metering pumps 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 to dispense the new amount through the small orifice. - View Dependent Claims (18)
-
Specification