Patent US3670667A successfully refreshed from Google Patents.
US3670667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incinerator for the combustion of waste products, particularly plastic materials
Assignee: Individual
•
Filing: 1970-04-24
•
Granted: 1972-06-20
•
Expires: 1990-04-24
Abstract
Abstract In an incinerator comprising two combustion chambers, the primary combustion chamber comprising refractory ceramic elements located adjacent to one another so as to form inclined continuous guide surfaces and means for supplying primary combustion air to said primary combustion chamber opening into said chamber at different levels above the bottom thereof.
Inventors
- 👤 Bent Faurholdt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:41
CPC Classifications
F; F23; F23G; F23G7/00; F23G7/12; F23G5/00; F23G5/08; F23G5/14; F23G5/16
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
109 words
An incinerator for the combustion of waste products and particularly plastic materials comprising a primary combustion chamber, means for supplying combustion air to said primary combustion chamber, a secondary combustion chamber thermally isolated from the primary combustion chamber, means for initiating a secondary combustion and means for supplying combustion air within said secondary combustion chamber, the primary combustion chamber comprises inclined continuous guide surfaces consisting of guide elements made from a refractory ceramic material, said guide surfaces are mounted at different levels within said primary combustion chamber, and said means for supplying primary combustion air to said primary combustion chamber open into said chamber between said inclined guide surfaces.
Claim 2
Dependent Claim
109 words
An incinerator for the combustion of waste products and particularly plastic materials comprising a primary combustion chamber, means for supplying combustion air to said primary combustion chamber, a secondary combustion chamber thermally isolated from the primary combustion chamber, means for initiating a secondary combustion and means for supplying combustion air within said secondary combustion chamber, the primary combustion chamber comprises inclined continuous guide surfaces consisting of guide elements made from a refractory ceramic material, said guide surfaces are mounted at different levels within said primary combustion chamber, and said means for supplying primary combustion air to said primary combustion chamber open into said chamber between said inclined guide surfaces.
Claim 3
Dependent Claim
60 words
An incinerator according to claim 1, wherein said guide surfaces are in the form of steps at different levels above the bottom of the primary combustion chamber, and said means for supplying primary combustion air open into the combustion chamber in zones between the guide surfaces and between the lowermost guide surface and the bottom of the primary combustion chamber.
Claim 4
Dependent Claim
26 words
An incinerator according to claim 2, further comprising hollow pipes for supporting said guide elements and for introducing primary combustion air into the primary combustion chamber.
Claim 5
Dependent Claim
32 words
An incinerator according to claim 3, wherein said hollow pipes include discharge openings located so as to direct streams of gas generated therein against the upper surface of the underlying guide elements.
Claim 6
Dependent Claim
50 words
An incinerator according to claim 1, wherein the lowermost portion of the walls of the primary combustion chamber form said guide surfaces and that the means for supplying primary combustion air to the primary combustion chamber consist of downwardly inclined ducts provided in the walls of said primary combustion chamber.
Claim 7
Dependent Claim
32 words
An incinerator according to claim 1, further comprising means for controlling the amount of air supplied to the primary combustion chamber dependent on the generation of heat within the secondary combustion chamber.
Claim 8
Dependent Claim
31 words
An incinerator according to claim 1, further comprising means for controlling the supply of air to the primary combustion chamber dependent on the generation of heat in the primary combustion chamber.
Claim 9
Dependent Claim
35 words
An incinerator according to claim 1, further comprising means for controlling the supply of air to the primary combustion chamber dependent on the contents of soot in the flue gases leaving the secondary combustion chamber.
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |