IP Library Granted Patent US 11,234,449
Granted Patent B2
US 11,234,449 · App. 15/897,522 · Granted Feb 1, 2022

Method of printing 3D tempered chocolate

Inventors: David Allen Mantell (Rochester, NY); Andrew W. Hays (Fairport, NY); Zahra C. Langford (Rochester, NY)
Assignee: XEROX CORPORATION
A23G1/54A23G1/0056A23G1/0066A23G1/50A23G3/0097A23P20/20A23P30/20B29C64/112B33Y10/00B33Y40/00B33Y70/00A23P2020/253A23V2002/00
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Quick Facts
Patent No.
US 11,234,449
App. No.
15/897,522
Granted
Feb 1, 2022
Kind
B2
Abstract

A method for printing a three-dimensional crystalline structure such as a chocolate layer wherein, after printing, the material has a desired crystal structure. An embodiment can include printing a liquid first layer of material with a printer onto a second layer of material having a crystal structure. Subsequently, the printed liquid first layer is processed to solidify the first layer. During the processing of the printed liquid first layer, the second layer functions as a crystal seed layer through physical contact with the printed liquid first layer and the second layer crystallizes with the crystal structure.

Claims (24)

1. A method for printing, comprising:

printing a first layer of material having a first crystal structure onto a second layer of material having a second crystal structure that is different from the first crystal structure, wherein the first layer of material comprises salt, sugar, or both dissolved in a solvent, wherein the second layer of material comprises salt, sugar, or both, and wherein the second crystal structure comprises a face-centered cubic crystal structure; and

subsequent to printing the first layer of material, processing the first layer of material to remove the solvent, thereby converting the first layer of material from a liquid state to a solid state, wherein processing the first layer of material causes the crystal structure of the first layer of material to change from the first crystal structure to the second crystal structure through physical contact between the first layer of material and the second layer of material using the second layer of material as a crystal seed layer, thereby producing a confection that is intended to be eaten.

2. The method of claim 1 , wherein the first layer of material and the second layer of material are edible.

3. The method of claim 1 , wherein the second layer of material comprises a salt, and wherein the first layer of material comprises the salt dispersed in the solvent.

4. The method of claim 1 , wherein the second layer of material comprises a sugar, and wherein the first layer of material comprises the sugar dispersed in the solvent.

5. The method of claim 1 , wherein the solvent comprises water.

6. The method of claim 1 , wherein the solvent comprises ethyl alcohol.

7. The method of claim 6 , further comprising removing ethyl alcohol effluent.

8. The method of claim 1 , wherein processing the first layer of material to remove the solvent comprises heating the first layer using a heat source.

9. The method of claim 1 , wherein processing the first layer of material to remove the solvent comprises moving air around the first layer using a fan.

10. The method of claim 1 , wherein the first layer of material is printed using a drop-on-demand inkjet printer.

11. The method of claim 1 , wherein the first layer of material is printed using an extrusion printer.

12. The method of claim 1 , wherein the second crystal structure comprises a single crystal.

13. The method of claim 1 , further comprising dehumidifying ambient air around the first layer of material during the processing of the first layer of material.

14. The method of claim 1 , further comprising heating the first layer of material to compensate for cooling caused by evaporation of the solvent.

15. The method of claim 1 , further comprising heating the first layer of material while cooling the first layer of material to increase a cooling time of the first layer of material.

16. The method of claim 1 , wherein the first layer comprises salt dissolved in the solvent.

17. The method of claim 1 , wherein the first layer comprises sugar dissolved in the solvent.

18. The method of claim 1 , wherein the first layer comprises salt and sugar dissolved in the solvent.

19. The method of claim 1 , wherein the second layer comprises salt.

20. The method of claim 1 , wherein the second layer comprises sugar.

21. The method of claim 1 , wherein the second layer comprises salt and sugar.

22. The method of claim 1 , wherein the second crystal structure further comprises a monoclinic space group P 2 i.

Assignments (10)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 6, 2025
From: XEROX CORPORATION
To: GENESEE VALLEY INNOVATIONS, LLC
Reel/Frame 073842/0479 →
SECOND LIEN NOTES PATENT SECURITY AGREEMENT Recorded Jul 2, 2025
From: XEROX CORPORATION
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 071785/0550 →
FIRST LIEN NOTES PATENT SECURITY AGREEMENT Recorded Apr 11, 2025
From: XEROX CORPORATION
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 070824/0001 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT RF 064760/0389 Recorded Feb 13, 2024
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: XEROX CORPORATION
Reel/Frame 068261/0001 →
SECURITY INTEREST Recorded Feb 13, 2024
From: XEROX CORPORATION
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 066741/0001 →
SECURITY INTEREST Recorded Nov 20, 2023
From: XEROX CORPORATION
To: JEFFERIES FINANCE LLC, AS COLLATERAL AGENT
Reel/Frame 065628/0019 →
SECURITY INTEREST Recorded Jun 22, 2023
From: XEROX CORPORATION
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 064760/0389 →
RELEASE OF SECURITY INTEREST IN PATENTS AT R/F 062740/0214 Recorded May 18, 2023
From: CITIBANK, N.A., AS AGENT
To: XEROX CORPORATION
Reel/Frame 063694/0122 →
SECURITY INTEREST Recorded Nov 10, 2022
From: XEROX CORPORATION
To: CITIBANK, N.A., AS AGENT
Reel/Frame 062740/0214 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 15, 2018
From: MANTELL, DAVID ALLEN; HAYS, ANDREW W.; LANGFORD, ZAHRA C.
To: XEROX CORPORATION
Reel/Frame 045344/0088 →
Continuity (3)
Continuation In Part 14719429 · May 22, 2015
Continuation 13666428 · Nov 1, 2012
Related Publication 20180168179A1 · Jun 21, 2018