US3830171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary tubular furnaces
Assignee: KEBE ANSTALT fur VERTRIEB VON ANLAGEN fur KEHRRICHTBESEITIGUNG FL
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Filing: 1973-05-29
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Granted: 1974-08-20
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Expires: 1993-05-29
Abstract
Abstract A rotary tubular furnace, for example for incinerating refuse comprises an internal grid structure which divides the interior of the furnace into a plurality of longitudinally extending passages. The grid structure comprises a number of individual grid sections which are carried by diametrically extending rods. The diametrically extending rods are removable from the furnace from the outside of the furnace and directly support removable longitudinal rods which support the grid sections. By removing the longitudinal rods, the grid sections can be removed from the furnace.
Inventors
- 👤 H Rolli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:42
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/20; F23G2203/00; F23G2203/20; F23G2203/208
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
89 words
A rotary tubular furnace comprising grid means extending substantially radially and dividing longitudinally at least a portion of the interior of the furnace into at least two passages, said grid means comprising a plurality of grid sections, a plurality of diametrically extending rods supporting said grid sections, removable support means on the exterior of said furnace for supporting said diametrically extending rods, said diametrically extending rods being removable from the furnace from the outside thereof after removal of said removable support means, said rods supporting removably said grid sections.
Claim 2
Dependent Claim
89 words
A rotary tubular furnace comprising grid means extending substantially radially and dividing longitudinally at least a portion of the interior of the furnace into at least two passages, said grid means comprising a plurality of grid sections, a plurality of diametrically extending rods supporting said grid sections, removable support means on the exterior of said furnace for supporting said diametrically extending rods, said diametrically extending rods being removable from the furnace from the outside thereof after removal of said removable support means, said rods supporting removably said grid sections.
Claim 3
Dependent Claim
71 words
A furnace according to claim 1, wherein groups of said diametrically extending rods are coplanar, said furnace further comprising longitudinally extending rods, each said longitudinally extending rod being slidably engaged with the diametrically extending rods of a respective group, and the grid sections being slidably engaged With the longitudinally extending rods to be supported thereby whereby the grid sections are removable by withdrawing in a longitudinal direction the longitudinally extending rods.
Claim 4
Dependent Claim
38 words
A frame according to claim 2, wherein each said grid section comprises a plurality of parallel bars, and cross-members connecting the bars, the said longitudinally extending rods extending through the cross members and being parallel with the bars.
Claim 5
Dependent Claim
37 words
A furnace according to claim 1, further comprising a plurality of longitudinally extending rods, one said longitudinally extending rod engaging at least two contiguous grid sections, and at least two longitudinally extending rods engaging each grid section.
Claim 6
Dependent Claim
21 words
A furnace according to claim 2 wherein said diametrically extending rods have transverse holes for slidably supporting said longitudinally extending rods.
Claim 7
Dependent Claim
21 words
A furnace according to claim 2 wherein said longitudinally extending rods have transverse holes for slidably supporting said diametrically extending rods.
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) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |