Patent US3712550A successfully refreshed from Google Patents.
US3712550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for processing effluent sludge
Assignee: Salzgitter Maschinenbau GmbH
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Filing: 1971-04-19
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Granted: 1973-01-23
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Expires: 1991-04-19
Abstract
Abstract Effluent sludge obtained upon clarification of waste effluent is admixed with solid refuse either before or subsequent to reduction of the solid refuse to particulate state in an impact grinder.
Inventors
- 👤 E Conrad
- 👤 K Rosner
- 👤 L Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:03
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/02; B02C13/06; B02C13/09; B02C13/095; B09; B09B; B09B3/00; B09B3/30; B09B3/35; C; C02; C02F; C02F11/00; C05; C05F; C05F7/00; C02F11/02; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/20
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
167 words
An apparatus for disposing of effluent sludge, comprising an impact grinder for converting solid refuse, including bulky components, to particulate state, said impact grinder comprising a rotor journalled for rotation about a horizontal axis and having a periphery provided with beating instrumentalities which travel upwardly at one side of a vertical plane passing through said axis, during one half of each rotor revolution and downwardly at the opposite side of said vertical plane during the other half of each rotor revolution, a housing surrounding said rotor and defining with said rotor at least one large grinding chamber located above said rotor, and impact plates delimiting said chamber located at said opposite side of said vertical plane; feed means for feeding solid refuse, including bulky components, into said impact grinder at said one side of said vertical plane for engagement by said beating instrumentalities and conversion to particulate state; and supply means for supplying a flow of effluent sludge into said impact grinder for admixing with said refuse.
Claim 2
Independent Claim
167 words
An apparatus for disposing of effluent sludge, comprising an impact grinder for converting solid refuse, including bulky components, to particulate state, said impact grinder comprising a rotor journalled for rotation about a horizontal axis and having a periphery provided with beating instrumentalities which travel upwardly at one side of a vertical plane passing through said axis, during one half of each rotor revolution and downwardly at the opposite side of said vertical plane during the other half of each rotor revolution, a housing surrounding said rotor and defining with said rotor at least one large grinding chamber located above said rotor, and impact plates delimiting said chamber located at said opposite side of said vertical plane; feed means for feeding solid refuse, including bulky components, into said impact grinder at said one side of said vertical plane for engagement by said beating instrumentalities and conversion to particulate state; and supply means for supplying a flow of effluent sludge into said impact grinder for admixing with said refuse.
Claim 3
Dependent Claim
27 words
An apparatus as defined in claim 1, wherein said supply means comprises a receptacle having an overflow edge over which the sludge flows onto said solid refuse.
Claim 4
Dependent Claim
32 words
An apparatus as defined in claim 1, said impact grinder having an inlet for said solid refuse; and wherein said supply means is arranged in said inlet above the incoming solid refuse.
Claim 5
Dependent Claim
32 words
An apparatus as defined in claim 1, wherein said supply means is operative for supplying said flow of effluent sludge into said impact grinder in the region of the incoming solid refuse.
Claim 6
Dependent Claim
43 words
An apparatus as defined in claim 1, said grinding chamber having an outlet from which particulate ground refuse issues; and wherein said supply means is operative for supplying said flow of effluent sludge into said impact grinder in the region of said outlet.
Claim 7
Dependent Claim
59 words
An apparatus as defined in claim 5, said supply means comprising a supply conduit extending along and above said outlet and having a slot, and a distRibutor baffle extending along said slot and being downwardly inclined so that effluent sludge flows in form of a thin layer over said baffle and onto the ground refuse issuing from said outlet.
Claim 8
Dependent Claim
56 words
An apparatus as defined in claim 1, wherein said supply means comprises first means for supplying one portion of said effluent sludge into said impact grinder in the region of the incoming solid refuse, and second means for supplying an other portion of said effluent sludge in the region of said downstream end of said chamber.
Claim 9
Dependent Claim
32 words
An apparatus as defined in claim 7, wherein said second means comprises conduit means for supplying said other portion of said effluent sludge into said impact grinder downstream of said impact plates.
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) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |