US3641982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bivalvia depuration system
Assignee: NAT SHELLFISH PROCESSORS Inc
•
Filing: 1969-04-07
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Granted: 1972-02-15
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Expires: 1989-04-07
Abstract
Abstract A bivalve depuration apparatus and method are provided in which bivalves, such as oysters, taken from contaminated waters, may be purified and rendered marketable.
Inventors
- 👤 David D Woodridge
- 👤 Joseph Clyde Kitchel
- 👤 William R Garrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:04
CPC Classifications
A; A22; A22C; A22C29/00; A22C29/04; A22C29/043
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
201 words
An open end bivalvia depuration system comprising in combination: a pump for continuously pumping water from a water source; a depuration tank for receiving water pumped from said water source and adapted for the depuration of bivalves therein; a first gamma irradiator means located between said water source and said depuration tank for irradiating the water being pumped from said water source; water return means for the egress of water from said depuration tank back into said water source; second gamma irradiator means for irradiating the water being returned from said depuration tank to said water source with a gamma radiation source; water current producing means in said depuration tank for producing water current in the water in said depuration tank to simulate the water current of the water source; said depuration tank receiving water at a plurality of levels and said tank having a removable frame therein, said frame having a plurality of trays thereon adapted for placement of bivalves for the depuration thereof, said trays being removable from said frame when said frame is removed from said depuration tank and said frame having means for agitating said frame with said trays thereon whereby depuration of said bivalves is encouraged.
Claim 2
Dependent Claim
201 words
An open end bivalvia depuration system comprising in combination: a pump for continuously pumping water from a water source; a depuration tank for receiving water pumped from said water source and adapted for the depuration of bivalves therein; a first gamma irradiator means located between said water source and said depuration tank for irradiating the water being pumped from said water source; water return means for the egress of water from said depuration tank back into said water source; second gamma irradiator means for irradiating the water being returned from said depuration tank to said water source with a gamma radiation source; water current producing means in said depuration tank for producing water current in the water in said depuration tank to simulate the water current of the water source; said depuration tank receiving water at a plurality of levels and said tank having a removable frame therein, said frame having a plurality of trays thereon adapted for placement of bivalves for the depuration thereof, said trays being removable from said frame when said frame is removed from said depuration tank and said frame having means for agitating said frame with said trays thereon whereby depuration of said bivalves is encouraged.
Claim 3
Dependent Claim
18 words
The system according to claim 1 in which said depuration tank current producing means is a motor-driven impeller.
Claim 4
Dependent Claim
20 words
The system according to claim 2 in which said depuration tank receives said water into said tank on three levels.
Claim 5
Dependent Claim
24 words
The system according to claim 3, in which said depuration tank has an angled bottom adapted to direct materials into said water return means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-14 | 1975-08-16 | 1976-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-14 | 1979-08-16 | 1980-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-14 | 1983-08-16 | 1984-02-15 | $7700.00 | Window Closed / Lapsed |