US3218995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sludge drying and incineration apparatus for industrial waste-water treatment
Assignee: Individual
•
Filing: 1963-01-21
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Granted: 1965-11-23
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Expires: 1983-01-21
Abstract
No abstract record available.
Inventors
- 👤 Yoshihara Akira
- 👤 Yoshihara Tsutomu
- 👤 Okada Kenji
- 👤 Sakaguchi Shigeharu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:13
CPC Classifications
F; F23; F23G; F23G7/00; F23G7/001; B; B01; B01D; B01D35/00; B01D35/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A SLUDGE DRYING AND INCINERATION APPARATUS FOR THE TREATMENT OF INDUSTRIAL WASTE WATERS, COMPRISING DRIER MEANS INTO WHICH SLUDGE IS FED FOR DRYING THE SAME AS IT MOVES THERETHROUGH, AN INCINERATOR IN COMMUNICATION WITH THE DRIER MEANS AND INTO WHICH THE DRIED SLUDGE IS DEPOSITED, SAID INCINERATOR INCLUDING WALL MEANS HAVING AT LEAST THE INNER SURFACE THEREOF DEFINED BY HEAT INSULATING MATERIAL, A ROTARY POLYGONAL MULTI-UMBREALLA TYPE HEARTH MOUNTED WITHIN THE WALLS MEANS, OIL BURNER MEANS IN THE WALL MEANS ABOVE THE ROTARY HEARTH, AND ASH RECEIVING MEANS BELOW THE ROTARY HEARTH, THE ARRANGEMENT BEING SUCH THAT THE DRIED SLUDGE CAKE UPON BEING DEPOSITED INTO THE WALL MEANS IS IGNITED BY THE OIL BURNER MEANS AND IS BURNED ON THE ROTARY HEARTH AFTER WHICH THE ASH FALLS INTO THE ASH RECEIVING MEANS.
Claim 2
Dependent Claim
132 words
A SLUDGE DRYING AND INCINERATION APPARATUS FOR THE TREATMENT OF INDUSTRIAL WASTE WATERS, COMPRISING DRIER MEANS INTO WHICH SLUDGE IS FED FOR DRYING THE SAME AS IT MOVES THERETHROUGH, AN INCINERATOR IN COMMUNICATION WITH THE DRIER MEANS AND INTO WHICH THE DRIED SLUDGE IS DEPOSITED, SAID INCINERATOR INCLUDING WALL MEANS HAVING AT LEAST THE INNER SURFACE THEREOF DEFINED BY HEAT INSULATING MATERIAL, A ROTARY POLYGONAL MULTI-UMBREALLA TYPE HEARTH MOUNTED WITHIN THE WALLS MEANS, OIL BURNER MEANS IN THE WALL MEANS ABOVE THE ROTARY HEARTH, AND ASH RECEIVING MEANS BELOW THE ROTARY HEARTH, THE ARRANGEMENT BEING SUCH THAT THE DRIED SLUDGE CAKE UPON BEING DEPOSITED INTO THE WALL MEANS IS IGNITED BY THE OIL BURNER MEANS AND IS BURNED ON THE ROTARY HEARTH AFTER WHICH THE ASH FALLS INTO THE ASH RECEIVING MEANS.
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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |