Patent US3965267A successfully refreshed from Google Patents.
US3965267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryopulverizing and post-treatment of flavoring materials
Assignee: Praxair Technology Inc
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Filing: 1974-09-17
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Granted: 1976-06-22
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Expires: 1994-09-17
Abstract
Abstract A process for comminuting flavoring materials such as spices, coffee and cocoa comprising pulverizing the flavoring material at a cryogenic temperature to form a powder and then agitating the powder until it is capable of forming an aqueous dispersion free of agglomerated particles.
Inventors
- 👤 Robert Bruce Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:43
CPC Classifications
A; A23; A23G; A23G1/00; A23G1/04; A23G1/042; A23G1/047; A23F; A23F5/00; A23F5/08; A23G1/06; A23G1/10; A23L; A23L27/00; A23L27/10; A23L27/115; A23L27/14; Y; Y10; Y10S; Y10S241/00; Y10S241/37
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
164 words
A process for comminuting a flavoring material selected from the group consisting of spices, coffee and cocoa to a powder finer than 70 mesh which is readily dispersible in aqueous solution comprising the steps of: 1. feeding the flavoring material to be comminuted into a grinding zone, 2. introducing a cryogenic refrigerant into said grinding zone in sufficient quantity to maintain said flavoring material at a cryogenic temperature, 3. pulverizing said flavoring material in said grinding zone to form a powder finer than 70 mesh, 4. separating said powder from the vaporized cryogenic refrigerant and collecting same, and 5. agitating said powder at a temperature above -100°F but below the deteriaration temperature of the flavoring material until a sufficient quantity of the oil content of the flavoring material is released from the powder to coat its surface where said agitation is for a time sufficient to produce a powder capable of forming an aqueous dispersion substantially free of agglomerated particles of said flavoring material.
Claim 2
Dependent Claim
164 words
A process for comminuting a flavoring material selected from the group consisting of spices, coffee and cocoa to a powder finer than 70 mesh which is readily dispersible in aqueous solution comprising the steps of: 1. feeding the flavoring material to be comminuted into a grinding zone, 2. introducing a cryogenic refrigerant into said grinding zone in sufficient quantity to maintain said flavoring material at a cryogenic temperature, 3. pulverizing said flavoring material in said grinding zone to form a powder finer than 70 mesh, 4. separating said powder from the vaporized cryogenic refrigerant and collecting same, and 5. agitating said powder at a temperature above -100°F but below the deteriaration temperature of the flavoring material until a sufficient quantity of the oil content of the flavoring material is released from the powder to coat its surface where said agitation is for a time sufficient to produce a powder capable of forming an aqueous dispersion substantially free of agglomerated particles of said flavoring material.
Claim 3
Dependent Claim
12 words
A process as in claim 1 wherein said spice is mustard seed.
Claim 4
Dependent Claim
15 words
A process as in claim 1 wherein said cryogenic refrigerant is liquid N 2 .
Claim 5
Dependent Claim
29 words
A process as in claim 2 wherein said agitating step is carried out in a high intensity propeller mixer and wherein said cryogenic refrigerant is liquid N 2 .
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-22 | 1979-12-22 | 1980-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-22 | 1983-12-22 | 1984-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-22 | 1987-12-22 | 1988-06-22 | $7700.00 | Window Closed / Lapsed |