Integrated sieve device for particle size screening of soil samples

Patent metadata

Field	Value
Publication number	US-12502677-B2
Application number	US-202418910393-A
Country	US
Kind code	B2
Filing date	Oct 9, 2024
Priority date	Oct 18, 2023
Publication date	Dec 23, 2025
Grant date	Dec 23, 2025

Abstract

An integrated sieve device for particle size screening of a soil sample is provided, the device comprising: a particle size screening unit having at least one sieve and configured to screen the soil sample by particle sizes and to drop the soil sample; a body housing in a cylindrical shape, wherein a part of a lateral surface of the body housing is open, wherein the particle size screening unit is detachably coupled to an inner lateral surface of the body housing; a sample reception unit mounted at a lower portion of the particle size screening unit coupled to the body housing and configured to collect soil and water discharged below the particle size screening unit by being screened by the sieve; and a water supply unit mounted at an inlet formed on an upper end of the body housing and configured to supply water into the particle size screening unit.

First claim

What is claimed is:

1 . An integrated sieve device for particle size screening of a soil sample, the integrated sieve device comprising:
a particle size screening unit having at least one sieve and configured to screen the soil sample by particle sizes and to drop the soil sample; a body housing in a cylindrical shape, wherein a part of a lateral surface of the body housing is open, wherein the particle size screening unit is detachably coupled to an inner lateral surface of the body housing in a direction that the part of the lateral surface of the body housing is open, wherein a pair of convex portions are formed on an inside of the lateral surface of the body housing, wherein a pair of groove portions are formed on an outside of a lateral surface of the particle size screening unit, and wherein the pair of convex portions are respectively coupled to the pair of groove portions such that the particle size screening unit is pivotable in a predetermined angle; a sample reception unit mounted at a lower portion of the particle size screening unit coupled to the body housing and configured to collect soil and water discharged below the particle size screening unit by being screened by the sieve; and a water supply unit mounted at an inlet formed on an upper end of the body housing and configured to supply water into the particle size screening unit.

2 . The integrated sieve device of claim 1 ,
wherein the particle size screening unit is formed as a sieve including a ring-shaped frame and a mesh mounted at a bottom portion inside the ring-shaped frame for sieving the soil sample, and wherein at least one of a plurality of sieves are provided to be stacked in a single or multiple layers.

3 . The integrated sieve device of claim 1 ,
wherein the sample reception unit is formed with a material that is transparent or translucent.

4 . The integrated sieve device of claim 1 , wherein the water supply unit includes:
a water control unit mounted at the inlet and configured to control an intensity, an amount and a dispersion of a stream of the water supplied into the particle size screening unit; and a water container configured to contain water, wherein an entrance of the water container is mounted at an upper end of the water control unit.

5 . The integrated sieve device of claim 4 , wherein the water control unit includes:
at least two disk-shaped nozzles each having a plurality of through holes of different sizes from one another, wherein the at least two disk-shaped nozzles are coupled such that sizes of the through holes are controllable by rotating any one of the at least two disk-shaped nozzles.

6 . The integrated sieve device of claim 1 , wherein
the body housing includes the pair of convex portions formed on both insides on a horizontal line of the lateral surface that is open, the pair of groove portions are formed on both outsides of the particle size screening unit in correspondence to the pair of convex portions, respectively, and the pair of convex portions are respectively inserted into the pair of groove portions to be pivotably coupled.

7 . The integrated sieve device of claim 6 ,
wherein the particle size screening unit is formed in a shape of an oval disk of which a major axis is connected to the body housing.

8 . The integrated sieve device of claim 6 ,
wherein a catching groove in a line shape is formed along an inner circumferential surface of the body housing such that a lower edge of the particle size screening unit is caught to be coupled to the catching groove when the particle size screening unit rotates.

9 . The integrated sieve device of claim 1 ,
wherein the particle size screening unit is formed by stacking a plurality of sieves each having a different size from one another, such that a size of mesh hole of each of the plurality of sieves decreases towards a bottom of the stacked plurality of sieves.

Assignees

• Korea Inst Geoscience & Mineral Resources

Inventors

• Kim Yuri
• Choi Jiyoung
• Kim Yoonmi

Classifications

• G01N15/0272

  with screening; with classification by filtering (B01D takes precedence) · CPC title

• B07B2230/01

  Wet separation · CPC title

• B07B1/02

  Hand screens · CPC title

• B07B1/06

  Cone or disc shaped screens · CPC title

• G01N2001/4088

  filtration · CPC title