← Back to Patent Explorer
US3641982A Expired / Lapsed US ⏱️ 0.0 years remaining

Bivalvia depuration system

Assignee: NAT SHELLFISH PROCESSORS Inc
•
Filing: 1969-04-07
•
Granted: 1972-02-15
•
Expires: 1989-04-07
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

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.

References Cited (Backward Citations)

US1945102A Cited
US2384203A Cited
US2427171A Cited
US2482507A Cited
US2887583A Cited
US3192054A Cited
US3116712A Cited
US3305683A Cited
US3418138A Cited
US3300990A Cited

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

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag