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US3928641A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of collecting protein filaments

Assignee: Nestle Purina PetCare Co
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Filing: 1974-10-29
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Granted: 1975-12-23
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Expires: 1994-10-29
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Abstract

Abstract A method of continuously forming discrete elongated protein filaments from a proteinaceous material is disclosed wherein an aqueous slurry of the proteinaceous material having a solids content of between about 0.5 and 35 percent by weight is conducted under pressure through a heat exchange zone wherein elongated tender protein filaments are separated from the slurry and the heated slurry is continually removed from said zone through a back pressure creating orifice or discharge nozzle whereby elongated filaments are discharged into a collecting zone. A means of controlling the discharge of said filaments into the collecting zone is provided by confining the stream of said filaments exiting the orifice into the collecting zone to within a critically defined total angle of between about 4* and 90* said angle being measured in relationship to a theoretical axis through the center of said orifice. Confining the stream of said filaments to within said angle maintains discreteness and integrity of the individual protein filaments and avoids any undesirable aggregation of said filaments at the periphery of said collecting zone.

Inventors

  • 👤 Ralph A Hoer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 17:13
CPC Classifications
A; A23; A23J; A23J3/00; A23J3/22; A23J3/26; A23J3/28; D; D01; D01F; D01F4/00; Y; Y10; Y10S; Y10S426/00; Y10S426/802

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 224 words
IN A METHOD OF CONTINUOUSLY FORMING DISCRETE ELONGATED PROTEIN FILAMENTS FROM PROTEINACEOUS MATERIAL WHEREIN AN AQUEOUS SLURRY OF THE PROTEINACEOUS MATERIAL IS FORMED HAVING A PROTEINACEOUS SOLIDS CONTENT OF BETWEEN ABOUT 0.5 AND 35 PERCENT BY WEIGHT, THE DISCRETE ELONGATED FILAMENTS BEING FORMED BY CONTINUOUSLY CONDUCTING THE SLURRY UNDER PRESSURE THROUGH A HEAT EXCHANGE ZONE AND IN SAID ZONE HEATING THE SLURRY TO A TEMPERATURE WHICH IS ABOVE 240*F. BUT WHICH IS LESS THAN THAT WHICH WILL DEGRADE THE PROTEIN, WHEREBY THE PROTEIN IS SUBJECTED TO SUCH TEMPERATURE FOR A SUFFICIENT PERIOD OF TIME SO THAT ELONGATED TENDER FILAMENTS ARE THEREAFTER SEPARATED FROM THE REMAINING CONSTITUENTS OF THE SLURRY AND THE HEATED SLURRY IS CONTINUOUSLY REMOVED FROM SAID ZONE THROUGH A BACK PRESSURE CREATING ORIFICE WHEREBY THE ELONGATED FILAMENTS AND REMAINING CONSTITUENTS OF THE SLURRY ARE DISCHARGED INTO A COLLECTING ZONE AND IN THE COLLECTING ZONE THE DISCRETE FILAMENTS ARE SEPARATED FROM THE REMAINING CONSTITUENTS OF THE SLURRU, THE IMPROVEMENT COMPRISING: CONTROLLING THE DISCHARGE OF SAID FILAMENTS INTO THE COLLECTING ZONE BY CONFINING THE STREAM OF SAID FILAMENTS BEING DISCHARGED FROM SAID ORIFICE INTO THE COLLECTING ZONE TO WITHIN A TOTAL ANGLE OF OF BETWEEN ABOUT 4 AND 90* SAID ANGLE BEING MEASURED FROM AN AXIS THROUGH THE CENTER OF SAID ORIFICE, IN ORDER TO MAINTAIN DISCRETENESS OF THE FILAMENTS IN SAID COLLECTING ZONE.
Claim 2
Dependent Claim 224 words
IN A METHOD OF CONTINUOUSLY FORMING DISCRETE ELONGATED PROTEIN FILAMENTS FROM PROTEINACEOUS MATERIAL WHEREIN AN AQUEOUS SLURRY OF THE PROTEINACEOUS MATERIAL IS FORMED HAVING A PROTEINACEOUS SOLIDS CONTENT OF BETWEEN ABOUT 0.5 AND 35 PERCENT BY WEIGHT, THE DISCRETE ELONGATED FILAMENTS BEING FORMED BY CONTINUOUSLY CONDUCTING THE SLURRY UNDER PRESSURE THROUGH A HEAT EXCHANGE ZONE AND IN SAID ZONE HEATING THE SLURRY TO A TEMPERATURE WHICH IS ABOVE 240*F. BUT WHICH IS LESS THAN THAT WHICH WILL DEGRADE THE PROTEIN, WHEREBY THE PROTEIN IS SUBJECTED TO SUCH TEMPERATURE FOR A SUFFICIENT PERIOD OF TIME SO THAT ELONGATED TENDER FILAMENTS ARE THEREAFTER SEPARATED FROM THE REMAINING CONSTITUENTS OF THE SLURRY AND THE HEATED SLURRY IS CONTINUOUSLY REMOVED FROM SAID ZONE THROUGH A BACK PRESSURE CREATING ORIFICE WHEREBY THE ELONGATED FILAMENTS AND REMAINING CONSTITUENTS OF THE SLURRY ARE DISCHARGED INTO A COLLECTING ZONE AND IN THE COLLECTING ZONE THE DISCRETE FILAMENTS ARE SEPARATED FROM THE REMAINING CONSTITUENTS OF THE SLURRU, THE IMPROVEMENT COMPRISING: CONTROLLING THE DISCHARGE OF SAID FILAMENTS INTO THE COLLECTING ZONE BY CONFINING THE STREAM OF SAID FILAMENTS BEING DISCHARGED FROM SAID ORIFICE INTO THE COLLECTING ZONE TO WITHIN A TOTAL ANGLE OF OF BETWEEN ABOUT 4 AND 90* SAID ANGLE BEING MEASURED FROM AN AXIS THROUGH THE CENTER OF SAID ORIFICE, IN ORDER TO MAINTAIN DISCRETENESS OF THE FILAMENTS IN SAID COLLECTING ZONE.
Claim 3
Dependent Claim 23 words
A process as set forth in claim 1 wherein the stream of said filaments is confined within a total angle of about 12*.
Claim 4
Dependent Claim 28 words
A process as set forth in claim 1 wherein the slurry is subjected in the heat exchange zone to a pressure of between about 50 and 5,000 psig.
Claim 5
Dependent Claim 34 words
A process as set forth in claim 1 wherein the total angle is at least equal to or greater than the angle of discharge of said slurry from said orifice into the collecting zone.
Claim 6
Dependent Claim 31 words
A process as set forth in claim 4 wherein said angle of discharge is about 5*, said angle being measured in relationship to an axis through the center of said orifice.
Claim 7
Dependent Claim 55 words
A process as set forth in claim 1 wherein said stream of filaments is confined by a discharge shield placed over said orifice said shield having a conical diverging section with a total angle of between about 4* and 90*, said angle being measured in relationship to an axis through the center of said orifice.
Claim 8
Dependent Claim 20 words
The process as set forth in claim 6 wherein said shield has a length of at least about 1 inch.
Claim 9
Dependent Claim 18 words
The process as set forth in claim 7 wherein said shield has a length of about 3 inches.

References Cited (Backward Citations)

US3488770A Cited
US3662672A Cited
US3713762A Cited
US3806289A Cited
US3834849A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-12-22 1979-06-23 1979-12-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-12-22 1983-06-23 1983-12-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-12-22 1987-06-23 1987-12-23 $7700.00 Window Closed / Lapsed

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