US2853390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for shortening manufacture
Assignee: Maple Leaf Foods Inc
•
Filing: 1956-05-07
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Granted: 1958-09-23
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Expires: 1976-05-07
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Mcgowan
- 👤 Barton F Teasdale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:30
CPC Classifications
A; A23; A23D; A23D9/00; A23D9/02; A21; A21D; A21D2/00; A21D2/08; A21D2/14; A21D2/16; A21D2/165
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A COMTINOUS PROCESS FOR THE MANUFACURE OF AN ALL-FAT PLACTIC SHORTENING COMPRISING BLENDING A FEED STREAM CONSISTING ESSENTIALLY OF MELTED FAT WITH A RECYCLED STREAM OF FAT CONTAINING FINELY-DIVIDED MECHANICALLY STRONG CRYSTALS SO THAT THE TEMPERATURE OF THE FEED STREAM IS REDUCED BELOW THE SEEDING POINT AND THE FEED STREAM IS NUCLEATED WITH AT LEAST A PORTION OF SAID CRYSTALS, SUBJECTING THE STREAM OF BLENDED FAT TO RAPID CHILLING TO PROVIDE A SLURRY CONTAINING A SUPERCOOLED LIQUID FAT FRACTION, SUBJECTING SAID SLURRY TO CRYSTALLIZATION AND MECHANICAL WORKING TO PROVIDE A PRODUCT STREAM IN WHICH CRYSTALLIZATION HAS BEEN SUBSTANTIALLY COMPLETED, WITHDRAWING A PORTION OF SAID PRODUCT STREAM FOR BLENDING WITH OTHER PORTION OF SAID PRODUCT STREAM, FOR BLENDING WITH SAID FEED STREAM OF MELTED FAT, AND TEMPERING THE MATERIAL OF THE PRODUCT STREAM TO ULTIMATED CONSISTENCY IN A PERIOD OF TIME LESS THAN ABOUT ONE DAY.
Claim 2
Dependent Claim
145 words
A COMTINOUS PROCESS FOR THE MANUFACURE OF AN ALL-FAT PLACTIC SHORTENING COMPRISING BLENDING A FEED STREAM CONSISTING ESSENTIALLY OF MELTED FAT WITH A RECYCLED STREAM OF FAT CONTAINING FINELY-DIVIDED MECHANICALLY STRONG CRYSTALS SO THAT THE TEMPERATURE OF THE FEED STREAM IS REDUCED BELOW THE SEEDING POINT AND THE FEED STREAM IS NUCLEATED WITH AT LEAST A PORTION OF SAID CRYSTALS, SUBJECTING THE STREAM OF BLENDED FAT TO RAPID CHILLING TO PROVIDE A SLURRY CONTAINING A SUPERCOOLED LIQUID FAT FRACTION, SUBJECTING SAID SLURRY TO CRYSTALLIZATION AND MECHANICAL WORKING TO PROVIDE A PRODUCT STREAM IN WHICH CRYSTALLIZATION HAS BEEN SUBSTANTIALLY COMPLETED, WITHDRAWING A PORTION OF SAID PRODUCT STREAM FOR BLENDING WITH OTHER PORTION OF SAID PRODUCT STREAM, FOR BLENDING WITH SAID FEED STREAM OF MELTED FAT, AND TEMPERING THE MATERIAL OF THE PRODUCT STREAM TO ULTIMATED CONSISTENCY IN A PERIOD OF TIME LESS THAN ABOUT ONE DAY.
References Cited (Backward Citations)
US2592224A
Cited
US2745750A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |