Discretizer and method of using same

Patent metadata

Field	Value
Publication number	US-12330164-B2
Application number	US-202318214552-A
Country	US
Kind code	B2
Filing date	Jun 27, 2023
Priority date	Jun 12, 2015
Publication date	Jun 17, 2025
Grant date	Jun 17, 2025

Abstract

Discretizers that exhibit improved solid additive laden fluid flow emanating from the discretizers and methods of using same, particularly for making fibrous structures are provided.

First claim

What is claimed is:

1. A method for making a fibrous structure, the method comprising the step of supplying a plurality of solid additives from a discretizer comprising a housing, one or more cross flow members and a rotor movable within the housing, wherein the housing comprises a discharge outlet having a discharge area of a discharge plane oriented at a discharge angle of greater than 20° and two or more inserts and at least two of the two or more inserts creates cross machine-direction (CD) walls between the discharge area and the rotor that are non-parallel with each other; which discretizes a plurality of solid additives from a source of solid additives during operation to make a fibrous structure;
wherein the discharge area of the discharge outlet is equal to or less than the rotor's projected area upon the discharge plane.

2. The method according to claim 1 wherein the discretizer is a hammer mill.

3. The method according to claim 1 wherein the discretizer comprises a screen.

4. The method according to claim 1 wherein the discretizer avoids creating zones of separated flow during operation.

5. The method according to claim 1 wherein at least one of the cross flow members is less than two rotor diameters below the center of the rotor.

Assignees

• Procter & Gamble

Inventors

• Young Christopher Michael
• Barnholtz Steven Lee
• Wang Fei

Classifications

• B32B5/26

  another layer {next to it} also being fibrous or filamentary {(relative arrangement of fibres or filaments of different layers B32B5/12)} · CPC title

• B32B2255/02

  on fibrous or filamentary layer · CPC title

• B32B2603/00

  Vanes, blades, propellers, rotors with blades · CPC title

• B32B5/02

  characterised by structural features of a {fibrous or filamentary} layer {(layer formed of metallic wires B32B15/02; layer formed of natural mineral fibres B32B19/02; layer formed of wood fibres B32B21/02)} · CPC title

• B32B7/04

  Interconnection of layers · CPC title