US3869247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling pipe for use in satellite coolers of rotary kilns
Assignee: Kloeckner Humboldt Deutz AG
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Filing: 1974-02-13
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Granted: 1975-03-04
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Expires: 1994-02-13
Abstract
Abstract The lifting blades or vanes on the interior of a cooling pipe of a satellite cooler are connected to the outer wall of the cooling pipe through the provision of blade feet which extend through metal lined recesses in the fireproof inner wall of the cooler, each foot having a pair of hollow portions with a common wall which includes an aperture aligned with an aperture in the outer pipe wall to receive a fastening bolt. The blade foot includes a flange for covering the recess and the connection of the blade foot with the outer wall of the cooling pipe prevents damage to the inner lining during cooler operation and during blade changing operations and provides for an easier disassembly and reassembly during blade changing operations.
Inventors
- 👤 Herbert Deussner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:33
CPC Classifications
F; F27; F27B; F27B7/00; F27B7/14; F27B7/16; F27B7/161; F27B7/162
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
92 words
A cooling pipe for a satellite cooler on a rotary kiln, comprising: a pipe wall, an inner wall having a fireproof lining, a material lifting blade arranged on the inner wall, a recess in said inner wall for said lifting blade, said recess extending to said pipe wall, a metal sleeve lining said recess, a metal plate between said sleeve and said pipe wall, an aperture in said pipe wall, a fastening foot on said blade, and a fastening device extending through said aperture to fasten said foot to said pipe wall.
Claim 2
Dependent Claim
92 words
A cooling pipe for a satellite cooler on a rotary kiln, comprising: a pipe wall, an inner wall having a fireproof lining, a material lifting blade arranged on the inner wall, a recess in said inner wall for said lifting blade, said recess extending to said pipe wall, a metal sleeve lining said recess, a metal plate between said sleeve and said pipe wall, an aperture in said pipe wall, a fastening foot on said blade, and a fastening device extending through said aperture to fasten said foot to said pipe wall.
Claim 3
Dependent Claim
29 words
A cooling pipe according to claim 1, wherein said fastening foot comprises a laterally extending flange disposed to cover said recess when said lifting blade is within said recess.
Claim 4
Dependent Claim
16 words
A cooling pipe according to claim 1, wherein said blade includes a reinforcing rib extending therefrom.
Claim 5
Dependent Claim
151 words
A cooling pipe for a satellite cooler on a rotary kiln, comprising: a pipe wall, an inner wall having a fireproof lining, a material lifting blade arranged on the inner wall, a recess in said inner wall for said lifting blade, said recess extending to said pipe wall, an aperture in said pipe wall, a fastening foot on said blade, said fastening foot including a first hollow portion, a second hollow portion, a common wall between said first and second hollow portions, and an aperture in said common wall, and a fastening device to fasten said foot to said pipe wall, said fastening device including a bolt extending throUgh said common wall aperture and said pipe wall aperture, said bolt including a head adjacent one of said apertures, a threaded portion, and a nut threadedly engaging said threaded portion adjacent the other aperture to clamp said foot to said pipe wall.
Claim 6
Dependent Claim
151 words
A cooling pipe for a satellite cooler on a rotary kiln, comprising: a pipe wall, an inner wall having a fireproof lining, a material lifting blade arranged on the inner wall, a recess in said inner wall for said lifting blade, said recess extending to said pipe wall, an aperture in said pipe wall, a fastening foot on said blade, said fastening foot including a first hollow portion, a second hollow portion, a common wall between said first and second hollow portions, and an aperture in said common wall, and a fastening device to fasten said foot to said pipe wall, said fastening device including a bolt extending throUgh said common wall aperture and said pipe wall aperture, said bolt including a head adjacent one of said apertures, a threaded portion, and a nut threadedly engaging said threaded portion adjacent the other aperture to clamp said foot to said pipe wall.
Claim 7
Dependent Claim
46 words
A cooling pipe according to claim 4, comprising a metal sleeve lining said recess, a metal plate between said sleeve and said cooling pipe wall, and an aperture in said metal plate aligned with said common wall and pipe wall apertures and receiving said bolt therethrough.
Claim 8
Dependent Claim
34 words
A cooling pipe according to claim 1, wherein said lifting blade comprises a least one projection extending from and beyond a surface of said blade to delay and provide a uniform discharge of material.
Claim 9
Dependent Claim
19 words
A cooling pipe according to claim 6, wherein said projection extends approximately in the axial direction of said pipe.
Claim 10
Dependent Claim
22 words
A cooling pipe according to claim 1 wherein said foot has a rectangular cross section as viewed perpendicular to said pipe wall.
Claim 11
Dependent Claim
24 words
A cooling pipe according to claim 8, wherein said foot has an X-shaped cross section as viewed in a direction of said pipe wall.
References Cited (Backward Citations)
US3124338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-03 | 1978-09-02 | 1979-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-03 | 1982-09-02 | 1983-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-03 | 1986-09-02 | 1987-03-04 | $7700.00 | Window Closed / Lapsed |