US5033370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the continuous hydrolyzing of keratinaceous materials
Assignee: Atlas Industries AS
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Filing: 1990-08-23
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Granted: 1991-07-23
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Expires: 2010-08-23
Abstract
Abstract Continuous hydrolyzing of keratinaceous material is effected in an elongated hydrolyzing vessel (1) under suitable pressure and temperature which is established by direct steam injection through injection valves, whereby the product mass is heated, fluidized and agitated at one and the same time. An inlet chute (2), which is closed in a pressure-proof manner, leads the material in batches and at intervals into the vessel (1), and an outlet chute (3) at intervals leads the hydrolyzed material to an economizer (4) and further to a pressure-free removal vessel (10). The product mass in the hydrolyzing vessel (1) moves through the vessel as plunger flow established by the overpressure in the inlet chute (2).
Inventors
- 👤 Peder Fosbol
- 👤 Henrik Ullum
- 👤 Birgitte Korremann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:12
CPC Classifications
A; A23; A23J; A23J1/00; A23J1/10; A23K; A23K10/00; A23K10/20; A23K10/26
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
170 words
Apparatus for continuously hydrolyzing keratinaceous material, which is heated in a hydrolyzing vessel under pressure for the length of time it takes for the desired hydrolyzing to be achieved, characterized in that it comprises an elongated, pressure-proof hydrolyzing vessel (1) which, at its inlet end, is connected to an inlet chute (2) which is closed in a pressure-proof manner, said chute (2) being arranged for the introduction of the material in batches and at intervals into the hydrolyzing vessel, and where the other end of the vessel is connected to a pressure-proof outlet chute (3) arranged for the emptying of batches of the hydrolyzed material, and in that the hydrolyzing vessel comprises means (5) for the direct injection of steam into the product mass, and that the movement of the product mass through the vessel takes place in steps as plunger flow substantially in step with the inlet chute, in that the pressure in the hydrolyzing vessel is greater at the inlet chute (2) than at the outlet chute (3).
Claim 2
Dependent Claim
170 words
Apparatus for continuously hydrolyzing keratinaceous material, which is heated in a hydrolyzing vessel under pressure for the length of time it takes for the desired hydrolyzing to be achieved, characterized in that it comprises an elongated, pressure-proof hydrolyzing vessel (1) which, at its inlet end, is connected to an inlet chute (2) which is closed in a pressure-proof manner, said chute (2) being arranged for the introduction of the material in batches and at intervals into the hydrolyzing vessel, and where the other end of the vessel is connected to a pressure-proof outlet chute (3) arranged for the emptying of batches of the hydrolyzed material, and in that the hydrolyzing vessel comprises means (5) for the direct injection of steam into the product mass, and that the movement of the product mass through the vessel takes place in steps as plunger flow substantially in step with the inlet chute, in that the pressure in the hydrolyzing vessel is greater at the inlet chute (2) than at the outlet chute (3).
Claim 3
Dependent Claim
40 words
Apparatus according to claim 1, characterized in that the hydrolyzing vessel (1) is an elongated, cylindrical vessel disposed in such a manner that the inlet end is above the outlet end, preferably so that the vessel (1) is substantially vertical.
Claim 4
Dependent Claim
44 words
Apparatus according to claim 2, characterized in that the steam injection means (5) are disposed in such a manner that the steam is injected through the vessel jacket (12) in a direction substantially at right angles to the longitudinal axis of the vessel (1).
Claim 5
Dependent Claim
57 words
Apparatus according to claim 1, characterized in that the inlet chute (2) is configured as a pressure vessel with a closable connection (7) to the hydrolyzing vessel (1), and in that it comprises a closable filling opening (8) arranged for the direct filling of the chute with raw material, plus the necessary steam pipes and valves (15).
Claim 6
Dependent Claim
35 words
Apparatus according to claim 4, characterized in that the inlet chute further comprises at least one vacuum pipe with necessary valves (13) for closing, hereby enabling an underpressure to be established in the chute (2).
Claim 7
Dependent Claim
89 words
Apparatus according to any of the claims 1-5, characterized in that it further comprises a pressure-proof storage vessel (4) for hydrolyzed material, said vessel being connected to the outlet chute (3) via a pipe (9), in that the storage vessel (4) is held at a lower pressure than the outlet chute (3), in that the storage vessel is connected to a pressure-free removal vessel (10) via a shut-off valve, and in that a steam pipe (11) can be led from the storage vessel (4) to the inlet chute (2).
References Cited (Backward Citations)
US3695165A
Cited
US3970614A
Cited
US4108052A
Cited
US4172073A
Cited
US4401019A
Cited
US4231926A
Cited
US4286884A
Cited
US4378311A
Cited
US4250802A
Cited
US4497733A
Cited
US4829891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-22 | 1995-01-21 | 1995-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-22 | 1999-01-21 | 1999-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-22 | 2003-01-21 | 2003-07-23 | $7700.00 | Window Closed / Lapsed |