Multi-chamber pellet die system

Patent metadata

Field	Value
Publication number	US-11897221-B2
Application number	US-202017022353-A
Country	US
Kind code	B2
Filing date	Sep 16, 2020
Priority date	Mar 3, 2017
Publication date	Feb 13, 2024
Grant date	Feb 13, 2024

Abstract

A multi-chamber pellet die system to improve and increase analysis pellet manufacturing capabilities by allowing for multiple pellets or biomaterial scaffolds to be fabricated simultaneously.

First claim

What is claimed is:

1. A method for retrofitting a pellet die system to form a multi-chamber pellet die system comprising;
modifying an existing die body by:
forming additional cavities in the existing die body to create at least one additional void body in the existing die body wherein at least one anvil and at least one plunger engage to form the additional void body;
defining a step-down within each void body within the existing die body wherein the step down is contiguous with a portion of an interior wall and the step-down is formed below and substantially adjacent to an opening wherein the at least one plunger enters into a loading chamber and defined by a first ledge positioned at an angle with respect to the interior wall of the loading chamber wherein the first ledge contacts and guides the at least one plunger entering the loading chamber; and

modifying an ejection base to accommodate each void body formed within the existing die body and to evacuate each void body.

2. The method for retrofitting a pellet die system to form a multi-chamber pellet die system of claim 1 , wherein the void bodies are formed so that they counter-balance one another with respect to load distribution throughout the die body.

3. The method for retrofitting a pellet die system to form a multi-chamber pellet die system of claim 1 , wherein the step-down is positioned at an obtuse angle with respect to a loading face of the die body.

4. The method for retrofitting a pellet die system to form a multi-chamber pellet die system of claim 1 , wherein each loading chamber, at least one anvil, and the at least plunger have complimentary shapes to one another allowing for male-female engagement between each anvil and plunger with each loading chamber.

5. The method for retrofitting a pellet die system to form a multi-chamber pellet die system of claim 4 , wherein at least one loading chamber has a different shape as compared to a shape of the other loading chambers defined in the die body.

6. The method for retrofitting a pellet die system to form a multi-chamber pellet die system of claim 1 , wherein the plunger is shaped to have a substantially cylindrical geometry.

7. The method for retrofitting a pellet die system to form a multi-chamber pellet die system of claim 6 , wherein the plunger is substantially columnar in shape with a substantially flat proximal and substantially flat distal end.

Assignees

• Univ South Carolina

Inventors

• Gower Robert Michael
• Canipe Felicia
• Margavio Mary
• Deppen Juline
• Haycook Christopher P

Classifications

• B30B11/221 Primary

  extrusion dies · CPC title

• B30B11/26

  using press rams · CPC title

• G01J3/42

  Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry (beam switching arrangements G01J3/08) · CPC title

• G01N1/286

  involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising (microtomes G01N1/06; pulverising in general B02C; mixing in general B01F) · CPC title

• G01N2001/2866

  Grinding or homogeneising · CPC title