US4442216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous enzymatic reactor for use of immobilized enzyme beads
Assignee: Individual
•
Filing: 1982-09-29
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Granted: 1984-04-10
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Expires: 2002-09-29
Abstract
Abstract Continuous reaction with immobilized enzyme beads is carried out in an enzymatic reactor providing for continuous reaction accompanied by continuous cleansing of the immobilized enzyme beads and continuous recycling of the cleansed-immobilized enzyme beads for reaction. The reactor comprises a reaction chamber having a screw mounted coaxially within a shell having first and second ends, means at the first end for introducing immobilized enzyme beads and fluid reactant material, means at the second end for removal of product, means at the second end for lifting of immobilized enzyme beads and dropping them through a reaction chamber and means for conveying cleansed immobilized enzyme beads from the cleansing chamber to the means for introducing.
Inventors
- 👤 Douglas G. Harvey, deceased
- 👤 executrix by Dolores C. Harvey
- 👤 Christian D. Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:44
CPC Classifications
C; C12; C12M; C12M25/00; C12M25/16; C12M21/00; C12M21/18; C12M23/00; C12M23/34; C12M27/00; C12M27/14; C12M29/00; C12M29/18; C12M33/00; C12M33/16; C12M47/00; C12M47/12
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
160 words
A continuous enzymatic reactor for use of immobilized enzyme beads to act on a fluid reactant material and to produce a product lighter in weight than said immobilized enzyme beads comprising a basic reactor having first and second ends, a screw, a shell, the screw mounted coaxially within the shell; means for introducing cleansed immobilized enzyme beads continuously to the basic reactor at said first end, means for feeding fluid reactant material into the basic reactor at said first end, means for continuously mixing, agitating and transporting said immobilized enzyme beads and fluid reactant material by rotating said screw; means at said second end for removing product produced; a cleansing chamber, means for lifting the immobilized enzyme beads continuously from said second end and dropping them through said cleansing chamber; means for cleansing the immobilized enzyme beads continuously during said dropping, and means for conveying the cleansed immobilized enzyme beads continuously from the cleansing chamber to said means for introducing.
Claim 2
Dependent Claim
160 words
A continuous enzymatic reactor for use of immobilized enzyme beads to act on a fluid reactant material and to produce a product lighter in weight than said immobilized enzyme beads comprising a basic reactor having first and second ends, a screw, a shell, the screw mounted coaxially within the shell; means for introducing cleansed immobilized enzyme beads continuously to the basic reactor at said first end, means for feeding fluid reactant material into the basic reactor at said first end, means for continuously mixing, agitating and transporting said immobilized enzyme beads and fluid reactant material by rotating said screw; means at said second end for removing product produced; a cleansing chamber, means for lifting the immobilized enzyme beads continuously from said second end and dropping them through said cleansing chamber; means for cleansing the immobilized enzyme beads continuously during said dropping, and means for conveying the cleansed immobilized enzyme beads continuously from the cleansing chamber to said means for introducing.
Claim 3
Dependent Claim
13 words
In a reactor as recited in claim 1, said basic reactor being horizontal.
Claim 4
Dependent Claim
25 words
In a reactor as recited in claim 2, said means for introducing including said basic reactor having a first port located above said first end.
Claim 5
Dependent Claim
15 words
In a reactor as recited in claim 3, said first port having a reservoir thereabove.
Claim 6
Dependent Claim
24 words
In a reactor as recited in claim 4, a lock-out chamber above said reservoir for introducing new immobilized enzyme beads with enzymes attached thereto.
Claim 7
Dependent Claim
28 words
In a reactor as recited in claim 3, said means for feeding fluid reactant material including a second port at said first end adjacent to said first port.
Claim 8
Dependent Claim
26 words
In a reactor as recited in claim 2, said means for lifting located for lifting said immobilized enzyme beads from a position below said second end.
Claim 9
Dependent Claim
22 words
In a reactor as recited in claim 7, said means for removing product being higher than said position below said second end.
Claim 10
Dependent Claim
24 words
In a reactor as recited in claim 7, a lock-out chamber below said second end adjacent to a portion of said means for lifting.
Claim 11
Dependent Claim
13 words
In a reactor as recited in claim 7, said cleansing chamber being vertical.
Claim 12
Dependent Claim
22 words
In a reactor as recited in claim 10, said cleansing chamber being at a location intermediate the length of said basic reactor.
Claim 13
Dependent Claim
25 words
In a reactor as recited in claim 11, said means for lifting inclining at an angle upwardly to an upper part of said cleansing chamber.
Claim 14
Dependent Claim
48 words
In a reactor as recited in claim 10, said means for cleansing including said cleansing chamber having a fluid intake at a lower portion thereof and a fluid exhaust at an upper portion thereof for producing a counterflow of fluid on immobilized enzyme beads dropping through said chamber.
Claim 15
Dependent Claim
40 words
In a reactor as recited in claim 13, said means for conveying inclining at an angle upwardly to an upper portion of said means for introducing and conveying said cleansed immobilized enzyme beads from a point below said cleansing chamber.
Claim 16
Dependent Claim
31 words
In a reactor as recited in claim 13, said means for lifting inclining upwardly to an upper part of said cleansing chamber, and said fluid exhaust being below said upper part.
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) | 1987-04-10 | 1987-10-10 | 1988-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-10 | 1991-10-10 | 1992-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-10 | 1995-10-10 | 1996-04-10 | $7700.00 | Window Closed / Lapsed |