US4087496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stirring apparatus for treating waste liquids
Assignee: Nouveaux Sueur Ets
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Filing: 1976-07-09
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Granted: 1978-05-02
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Expires: 1996-07-09
Abstract
Abstract The apparatus includes a central cylindrical element 1, extended, at its upper part, by a hopper 2, in the shape of a truncated cone ending in a roughly ovoid carter of a substantially spiral cross-section 3, extended by an air inlet 6, while the lower part of the tube forming the main body of the apparatus has the shape of a truncated cone 7 ending to a horizontal crown 8, located above a reaction plate 9, a rotating element 10-20 being located in the lower part of the main element, forming the body of the apparatus.
Inventors
- 👤 Roger Perrot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:57
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1278; C02F3/1284; B; B01; B01F; B01F23/00; B01F23/40; B01F23/45; B01F23/454; B01F25/00; B01F25/10; B01F25/103; B01F25/40; B01F25/42; B01F25/43; B01F25/433; B01F25/4335; C02F3/1294; C02F3/14; C02F3/16; C02F3/165; C02F3/20; C02F3/205; B01F33/00; B01F33/80; B01F33/82; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
161 words
Stirring apparatus for treating waste liquids, comprising: a central cylindrical element having an upper portion and a lower portion; a hopper connected to the upper portion of said cylindrical element, said hopper being in the shape of a downwardly tapered truncated cone-shaped section; a carter having a substantially spiral shaped cross-section generally transverse to the central cylindrical element at the top of said hopper, said carter including a top central air inlet and a tangential inlet for the waste liquid; an upwardly tapered truncated cone-shaped section connected to the lower portion of the cylindrical element; a ring connected to the bottom of the upwardly tapered truncated cone-shaped section, said ring being generally transverse to the central cylindrical element; a reaction plate placed substantially parallel to and under said ring; rotating means being further located at the lower part of the assembly formed by the central cylindrical element and the upwardly tapered truncated cone and means for rotatively driving said rotating means.
Claim 2
Dependent Claim
161 words
Stirring apparatus for treating waste liquids, comprising: a central cylindrical element having an upper portion and a lower portion; a hopper connected to the upper portion of said cylindrical element, said hopper being in the shape of a downwardly tapered truncated cone-shaped section; a carter having a substantially spiral shaped cross-section generally transverse to the central cylindrical element at the top of said hopper, said carter including a top central air inlet and a tangential inlet for the waste liquid; an upwardly tapered truncated cone-shaped section connected to the lower portion of the cylindrical element; a ring connected to the bottom of the upwardly tapered truncated cone-shaped section, said ring being generally transverse to the central cylindrical element; a reaction plate placed substantially parallel to and under said ring; rotating means being further located at the lower part of the assembly formed by the central cylindrical element and the upwardly tapered truncated cone and means for rotatively driving said rotating means.
Claim 3
Dependent Claim
32 words
The stirring apparatus for treating waste liquids as set forth in claim 1, wherein the rotating means includes straight wings and is located at the lower part of the central cylindrical element.
Claim 4
Dependent Claim
29 words
The stirring apparatus for treating waste liquids as set forth in claim 1, wherein the rotating means includes conical blades and is located in the upwardly extending truncated cone.
Claim 5
Dependent Claim
30 words
The stirring apparatus for treating waste liquids as set forth in claim 1, wherein the means provided for rotatively driving said rotating means comprises a motor located inside the apparatus.
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) | 1981-05-01 | 1981-10-31 | 1982-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-01 | 1985-10-31 | 1986-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-01 | 1989-10-31 | 1990-05-02 | $7700.00 | Window Closed / Lapsed |