IP Library Granted Patent US 12,631,530
Granted Patent B2
US 12,631,530 · App. 18/177,326 · Granted May 19, 2026

Cryogenic grinding system, apparatus, and methods of use thereof

Inventors: Lea L. Anderson-Smith (Marlboro, NJ); Marc Boivin (Wendake, CA); Jean-François Malo (Québec, CA)
Assignee: SPEX SamplePrep, LLC
G01N1/42B02C19/186B02C25/00G01N2001/2866
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Quick Facts
Patent No.
US 12,631,530
App. No.
18/177,326
Granted
May 19, 2026
Kind
B2
Abstract

A cryogenic grinding system, method, and apparatus for processing a sample. The system includes a cryogen source, a containment vessel for containing the sample and the cryogen, a blade for grinding the sample, and a controller. The controller controls at least one of: a quantity of cryogen introduced into the container; a grinding duration of the at least one blade; or a grinding speed of the at least one blade based on at least one of: a user input via a grinding system input, a mass of the sample placed in the containment vessel; or a temperature within the containment vessel.

Claims (28)

1 . A cryogenic grinding system for processing a sample, the system comprising:

a cryogen source;

a containment vessel for containing the sample and a cryogen;

at least one blade within the containment vessel for grinding the sample; and

a controller configured to control at least one of: a quantity of cryogen introduced into the containment vessel; a grinding duration of the at least one blade; or a grinding speed of the at least one blade based on at least one of: a user input via a grinding system input, a mass of the sample placed in the containment vessel; or a temperature within the containment vessel; and

wherein the controller controls the quantity of the cryogen introduced in the containment vessel based on a mass of the sample.

2 . The system of claim 1 , wherein the cryogen source is liquid nitrogen.

3 . The system of claim 1 , wherein the controller determines the mass of the sample based on a signal indicating the mass of the sample placed in the containment vessel.

4 . The system of claim 3 , wherein the signal is an output of a mass cell.

5 . The system of claim 3 , wherein the signal is based on a user input via the grinding system input.

6 . The system of claim 1 , wherein the cryogen source is a valve configured to be placed in fluid communication with a cryogen tank.

7 . The system of claim 1 , wherein the cryogen source is a cryogen tank.

8 . The system of claim 1 , wherein the containment vessel is slideably removeable from a main body of the system.

9 . The system of claim 1 , wherein containment vessel is removable from a main body of the system, wherein the system further comprises an engagement lever, wherein user engagement of the lever causes operative coupling of a motor to the at least one blade.

10 . The system of claim 1 , wherein the quantity the cryogen introduced into the container is controlled via a valve.

11 . The system of claim 10 , wherein the quantity of the cryogen introduced into the container is increased or decreased based on a temperature within the containment vessel.

12 . The system of claim 10 , wherein the quantity of the cryogen introduced into the container is increased or decreased based on a user input via the grinding system input.

13 . The system of claim 1 , wherein the mass of the sample is determined via a mass cell.

14 . A cryogenic grinding apparatus for processing a sample, the apparatus comprising:

a cryogen supply valve;

an opening configured to receive a containment vessel for containing the sample;

a blade driving apparatus; and

a controller configured to control at least one of: a quantity of cryogen introduced into a vessel received within the opening; a rotating duration of the blade driving apparatus; a speed of the of the blade driving apparatus based on at least one of: a user input via a grinding system input, a detected mass of the sample in a containment vessel placed in the opening; or a temperature within the containment vessel placed in the opening; and wherein the controller controls the quantity of the cryogen supplied to the containment vessel placed in the opening based on a determined mass of the sample within the containment vessel.

15 . The apparatus of claim 14 , wherein liquid nitrogen is supplied to the cryogen supply valve.

16 . The apparatus of claim 14 , wherein the controller determines the mass of the sample based on a signal indicating the mass of a sample within in the containment vessel.

17 . The apparatus of claim 16 , wherein the signal is an output of a mass cell.

18 . The apparatus of claim 16 , wherein the signal is based on a user input via the grinding system input.

19 . The apparatus of claim 14 , wherein a containment vessel is slidably insertable or removeable from the cryogenic grinding apparatus.

Assignments (3)
PATENT SECURITY AGREEMENT Recorded Jun 11, 2025
From: COLE-PARMER INSTRUMENT COMPANY LLC; SPEX CERTIPREP, LLC; SPEX SAMPLEPREP, LLC; ZEPTOMETRIX LLC; CONTROL 3, LLC; ENVIRONMENTAL EXPRESS, INC.; ENVIRONMENTAL MONITORING SYSTEMS, LLC
To: UBS, AG, STAMFORD BRANCH
Reel/Frame 071511/0113 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 2, 2023
From: ANDERSON-SMITH, LEA L.
To: SPEX SAMPLEPREP, LLC
Reel/Frame 062856/0817 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 2, 2023
From: BOIVIN, MARC; MALO, JEAN-FRANÇOIS
To: SPEX SAMPLEPREP, LLC
Reel/Frame 062856/0896 →
Continuity (2)
Provisional Application 63337661 · May 3, 2022
Related Publication 20230358652A1 · Nov 9, 2023
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