Measuring and dispensing system for solid dry flowable materials

• US 7,075,019 B2
• Filed: 02/15/2002
• Issued: 07/11/2006
• Est. Priority Date: 02/20/2001
• Status: Active Grant

• Current Assignee: FMC Corporation
• Original Assignee: E. I. du Pont de Nemours and Company (Corteva, Inc.)
• Inventors: Bergman, Ryan Keith, Gerling, Joseph Francis
• Primary Examiner(s): Gibson, Randy W.
• Application Number:
  US10/466,127
• Publication Number:
  US 20040060367A1
• Time in Patent Office: 1,607 Days
• Field of Search: 141/83, 141/351, 141/346, 141/364, 141/384, 222/55, 222/56, 222/77, 177/59, 177105-123, 137/552, 137/613
• US Class Current: 177/59
• CPC Class Codes: B65B 1/32 by weighing check-weighing of filled containers or receptacles B65B1/46
• CPC Class Codes: B65B 37/18 by weighing devices or methods for controlling the quantity of material or liquid fed or filled into a container by weighing B65B1/32, B65B3/28
• CPC Class Codes: G01G 11/08 having means for controlling the rate of feed or discharge regulation of flow of fluent material G05D
• CPC Class Codes: G01G 11/086 of the loss-in-weight feeding type

Abstract

An apparatus for measuring and dispensing solid dry flowable materials, comprising a supply container (10), a reserve hopper (18), a means for connecting said supply container (10) to said reserve hopper (18), a means for weighing said reserve hopper (18) and a means for regulating the weight of said material dispensed from said reserve hopper (18).

Claims

1. An apparatus for measuring and dispensing solid dry flowable material, comprising:

a supply container for holding material, said supply container comprising a shut-off valve;

a reserve hopper;

means for connecting said supply container to said reserve hopper, said connecting means comprising a flexible, compressible conduit, an output transfer valve, and an input transfer valve, said compressible conduit being attached to the shut-off valve at one end and to an inlet on said output transfer valve at the other end, said output transfer valve capable of attachment to the input transfer valve, said input transfer valve connected to said reserve hopper;

means for weighing said reserve hopper;

means for dispensing material from said reserve hopper; and

means for regulating the weight of material dispensed from said reserve hopper.

2. The apparatus of claim 1 wherein said weighing means comprises a load cell attached to said reserve hopper for measuring the amount of product dispensed from said reserve hopper.

3. The apparatus of claim 1 further comprising a housing.

4. The apparatus of claim 1 wherein said supply container is transportable, refillable and environmentally closed.

5. The apparatus of claim 1 wherein at least a portion of the sides of said supply container slope.

6. The apparatus of claim 1 wherein said conduit is a hose.

7. The apparatus of claim 1 wherein said output transfer valve and input transfer valve are both product specific.

8. The apparatus of claim 1 wherein said output transfer valve is one-way.

9. The apparatus of claim 1 further comprising a reserve hopper refill valve disposed between the input transfer valve and the reserve hopper.

10. The apparatus of claim 1 wherein said regulating means comprises a controller.

11. The apparatus of claim 1 wherein said dispensing means comprises a dispensing valve.

12. The apparatus of claim 11 wherein the dispensing valve is a magnetic solenoid.

13. The apparatus of claim 1 further comprising means for transporting material dispensed from said reserve hopper.

14. The apparatus of claim 13 wherein said transporting means is hydraulic, pneumatic, mechanical or portable.

15. The apparatus of claim 14 wherein said transporting means is a hydraulic or pneumatic conduit.

16. The apparatus of claim 15 further comprising means for monitoring the flow of fluid through said conduit.

17. The apparatus of claim 14 wherein said transporting means is a portable container.

18. The apparatus of claim 17 further comprising means for identifying said supply container and said portable container and means for regulating flow of appropriate materials thereinto.

19. A method for measuring and dispensing solid dry flowable material, comprising:

placing a quantity of solid dry flowable material into the supply container of an apparatus of claim 1;

discharging a portion of the material therefrom into the reserve hopper of said apparatus;

weighing the reserve hopper;

dispensing material from the reserve hopper; and

regulating the weight of material dispensed from the reserve hopper.