US2921857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the preparation of a powdered milk product
Assignee: Dairy Foods Inc
•
Filing: 1957-04-08
•
Granted: 1960-01-19
•
Expires: 1977-04-08
Abstract
No abstract record available.
Inventors
- 👤 Francis Sharp Paul
- 👤 Arford Kempf Clayton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:37
CPC Classifications
A; A23; A23C; A23C1/00; A23C1/04; A23C1/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
200 words
THE METHOD OF PRODUCING, WITHOUT REWETTING, AN ESSENTIALLY DRY MILK POWDER HAVING ESSENTIALLY ALL OF ITS MASS IN THE FORM OF AGGLOMERATED PRIMARY SPRAYDRIED PARTICLES, AND POSSESSING ESSENTIALLY COMPLETE SOLUBILITY, WHICH COMPRISES THE STEPS OF RAPIDLY MOVING DROPLETS OF LACTOSE SEEDED MILK CONCENTRATE FORMED BY SPRAYING A MILK CONCENTRATE CONTAINING A PREDETERMINED QUANTITY OF LACTOSE SEED CRYSTALS, THROUGH AN ATMOSPHERE OF HOT DRYING GAS, PROVIDING A TEMPERATURE FOR SAID GAS IN RELATION TO THE LACTOSE SEED CONTENT OF SUCH DROPTRATE THAT WILL REDUCE THE MOISTURE CONTENT OF SUCH DROPLETS TO FROM 10% TO 18% AT A TIME DURING SAID DRYING PROCEDURE WHEN BOTH CRYSTALLINE LACTOSE AND NON-CRYSTALLINE LACTOSE ARE PRESENT IN SAID DROPLETS, INTERMINGLING THE PARTICLES PRODUCED FROM SAID DROPLETS TO BRING ADJACENT PARTICLES IN CONTACT WITH EACH OTHER DURING THE PERIOD WHEN MOISTURE CONTENT THEREOF IS BETWEEN 10% AND 18%, THEREBY CAUSING ESSENTIALLY ALL FO THE PARTICLE MASS TO BECOME FIRMLY ASSOCIATED INTO AGGLOMERATES OF PARTICLES BONDED TO EACH OTHER BY THE TACKINESS OF THE NON-CRYSTALLINE LACTOSE PRESENT THEREIN, AND, WHILE THE PARTICLES ARE SO BONDED, REMOVING ADDITIONAL MOISTURE THEREFROM TO BELOW SUBSTANTIALLY 5% AND THEREBY STRENGTHENING SAID BONDS AND PRODUCING A DRY MILK POWDER COMPOSED OF AGGLOMERATED PARTICLES.
Claim 2
Independent Claim
200 words
THE METHOD OF PRODUCING, WITHOUT REWETTING, AN ESSENTIALLY DRY MILK POWDER HAVING ESSENTIALLY ALL OF ITS MASS IN THE FORM OF AGGLOMERATED PRIMARY SPRAYDRIED PARTICLES, AND POSSESSING ESSENTIALLY COMPLETE SOLUBILITY, WHICH COMPRISES THE STEPS OF RAPIDLY MOVING DROPLETS OF LACTOSE SEEDED MILK CONCENTRATE FORMED BY SPRAYING A MILK CONCENTRATE CONTAINING A PREDETERMINED QUANTITY OF LACTOSE SEED CRYSTALS, THROUGH AN ATMOSPHERE OF HOT DRYING GAS, PROVIDING A TEMPERATURE FOR SAID GAS IN RELATION TO THE LACTOSE SEED CONTENT OF SUCH DROPTRATE THAT WILL REDUCE THE MOISTURE CONTENT OF SUCH DROPLETS TO FROM 10% TO 18% AT A TIME DURING SAID DRYING PROCEDURE WHEN BOTH CRYSTALLINE LACTOSE AND NON-CRYSTALLINE LACTOSE ARE PRESENT IN SAID DROPLETS, INTERMINGLING THE PARTICLES PRODUCED FROM SAID DROPLETS TO BRING ADJACENT PARTICLES IN CONTACT WITH EACH OTHER DURING THE PERIOD WHEN MOISTURE CONTENT THEREOF IS BETWEEN 10% AND 18%, THEREBY CAUSING ESSENTIALLY ALL FO THE PARTICLE MASS TO BECOME FIRMLY ASSOCIATED INTO AGGLOMERATES OF PARTICLES BONDED TO EACH OTHER BY THE TACKINESS OF THE NON-CRYSTALLINE LACTOSE PRESENT THEREIN, AND, WHILE THE PARTICLES ARE SO BONDED, REMOVING ADDITIONAL MOISTURE THEREFROM TO BELOW SUBSTANTIALLY 5% AND THEREBY STRENGTHENING SAID BONDS AND PRODUCING A DRY MILK POWDER COMPOSED OF AGGLOMERATED PARTICLES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |