US3841242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for burning waste matter
Assignee: Individual
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Filing: 1973-11-28
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Granted: 1974-10-15
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Expires: 1993-11-28
Abstract
Abstract In a combustion chamber, an inclined feed bed with a plurality of stepped sections is vibrated and the burning waste matter proceeds down the steps of the feed bed to the ash discharge. Combustion air is introduced at the bottom of the risers of the steps through arrangements for protecting the air down along the surface of the bed. The stepped sections are hollow and are formed by overlapping plates having a rear extension that rises obliquely upward inside the next higher section to oppose flow of the waste material into the air supply. The forward end of the step may be provided with a rim, but the top of the rim is lower than the upper end of the rearward extension of the same step. The rim is perforated with horizontal slots at the step level.
Inventors
- 👤 C Sigg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:22
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/002
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
190 words
Apparatus for burning waste matter comprising: a longitudinally inclined feed bed carrier (35) provided with means (38) for vibrating said carrier; a plurality of hollow step-forming sections mounted in fixed positions transversely on said carrier so as to present a support surface for said waste matter that is substantially continuous except for openings in the risers of said stepped surface; said step-forming sections being formed of overlapping plates of fire-resistant material arranged with their long dimension transverse to the longitudinal direction of said feed bed carrier and being bent on a plurality of lines substantially parallel to their said long dimension, and having an obliquely rising rear extension (23) under the overlap of the next higher plate for opposing flow of waste matter from the stepped surface rearwardly into the openings; means for introducing combustion air into the space between said carrier and said stepped sections for supplying said air through said riser openings to the combustion of said waste matter, and retaining side walls (36) mounted in fixed positions on said carrier and extending above said stepped surface on either side to prevent sideways excape of said waste matter.
Claim 2
Dependent Claim
190 words
Apparatus for burning waste matter comprising: a longitudinally inclined feed bed carrier (35) provided with means (38) for vibrating said carrier; a plurality of hollow step-forming sections mounted in fixed positions transversely on said carrier so as to present a support surface for said waste matter that is substantially continuous except for openings in the risers of said stepped surface; said step-forming sections being formed of overlapping plates of fire-resistant material arranged with their long dimension transverse to the longitudinal direction of said feed bed carrier and being bent on a plurality of lines substantially parallel to their said long dimension, and having an obliquely rising rear extension (23) under the overlap of the next higher plate for opposing flow of waste matter from the stepped surface rearwardly into the openings; means for introducing combustion air into the space between said carrier and said stepped sections for supplying said air through said riser openings to the combustion of said waste matter, and retaining side walls (36) mounted in fixed positions on said carrier and extending above said stepped surface on either side to prevent sideways excape of said waste matter.
Claim 3
Dependent Claim
23 words
Apparatus according to claim 1 in which said obliquely rising rear extension (23,24) has a further downard extension (24) giving it roof-like shape.
Claim 4
Dependent Claim
59 words
Apparatus according to claim 1 in which said plates are provided in the forward portions of their upper surfaces each with an upwardly obiliquely extending retaining member (26) disposed in the long dimension of the plate with its upper edge (31) lower (h) than the upper end (40) of said obliquely rising rear extension (23) of the same plate.
Claim 5
Dependent Claim
59 words
Apparatus according to claim 1 in which said plates each have a forward lip portion (29) directed approximately parallel to the principal upper surface of the next lower plate and spaced therefrom so as to provide the aforesaid riser openings of said stepped surface in a form constituting laterally extensive and vertically narrow nozzle passages (28) for combustion air.
Claim 6
Dependent Claim
22 words
Apparatus according to claim 4 in which the cross-section of said nozzle passages (28) is tapered and narrows towards the discharge opening.
Claim 7
Dependent Claim
19 words
Apparatus according to claim 1 in which said carrier (35) has an inclination of between 13* and 17* .
Claim 8
Dependent Claim
17 words
Apparatus according to claim 6 in which the inclination of said carriEr (35) is approximately 15* .
Claim 9
Dependent Claim
18 words
Apparatus according to claim 1 having not less than 10 nor more than 30 of said step-forming sections.
Claim 10
Dependent Claim
34 words
Apparatus according to claim 1 in which said carrier (35) is mounted by spring mounts (34) on two stationary supports (33) substantially between which are located said means (38) for vibrating said carrier (35).
Claim 11
Dependent Claim
40 words
Apparatus according to claim 3 in which said obliquely upwardly extending retaining members (36) are provided with slot-shaped openings (27) at about the level of the surface of the principal portion (22) of the plate to which it is affixed.
Claim 12
Dependent Claim
46 words
Apparatus according to claim 1 in which the downwardly deflected portion (30) of each of said plates which forms the riser for said stepped surface has an external angle ( gamma ) to the principal portion (22) of said plate of between 200* and 260* .
Claim 13
Dependent Claim
17 words
Apparatus according to claim 11 in which said external angle ( gamma ) is about 230* .
Claim 14
Dependent Claim
38 words
Apparatus according to claim 1 in which said plates are each formed in one piece having an unbroken upper surface out of metal plate or sheet material and which are rigidly affixed to said retaining side walls (36).
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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |