US4072372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heavy-duty swivel bearing
Assignee: IHO Holding GmbH and Co KG
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Filing: 1976-11-11
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Granted: 1978-02-07
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Expires: 1996-11-11
Abstract
Abstract A swivelable journal bearing for a shaft of a converter or other heavy-duty equipment comprises a spherically convex inner ring on the shaft and an annular array of rigidly interconnected socket elements each forming at least one seat for an inwardly projecting low-friction insert having a spherically concave face in contact with the ring surface. The socket elements may be short tubes welded to one another or embedded in a shell of concrete; they could also be perforated strips welded together and backed by a concrete shell.
Inventors
- 👤 Heinz Korrenn
- 👤 Wolfgang Teich
- 👤 Helmut Heimrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:06
CPC Classifications
F; F16; F16C; F16C23/00; F16C23/02; F16C23/04; F16C23/043; F16C23/045; F16C33/00; F16C33/02; F16C33/04; F16C33/26
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
108 words
A swivelable journal bearing for a shaft, comprising: a shaft-supported inner ring with a spherically convex outer surface; an outer annular body divided into a multiplicity of socket elements rigidly welded to one another, said body coaxially surrounding said ring with clearance, each of said socket elements being provided with at least one throughgoing aperture facing said ring; a low-friction insert in each aperture projecting into said clearance, said insert having a spherically concave face in contact with and conforming to said outer surface; and a mass of concrete obstructing the end of each aperture remote from said ring in contact with the insert thereof for back-stopping same.
Claim 2
Dependent Claim
108 words
A swivelable journal bearing for a shaft, comprising: a shaft-supported inner ring with a spherically convex outer surface; an outer annular body divided into a multiplicity of socket elements rigidly welded to one another, said body coaxially surrounding said ring with clearance, each of said socket elements being provided with at least one throughgoing aperture facing said ring; a low-friction insert in each aperture projecting into said clearance, said insert having a spherically concave face in contact with and conforming to said outer surface; and a mass of concrete obstructing the end of each aperture remote from said ring in contact with the insert thereof for back-stopping same.
Claim 3
Dependent Claim
21 words
A journal bearing as defined in claim 1 wherein said socket elements are tubes extending generally radially toward the ring axis.
Claim 4
Dependent Claim
24 words
A journal bearing as defined in claim 2 wherein said tubes form a cluster with intervening spaces, further comprising a lubricant occupying said spaces.
Claim 5
Dependent Claim
27 words
A journal bearing as defined in claim 2 wherein said tubes are embedded in a concrete shell surrounding said ring, said mass being part of said shell.
Claim 6
Dependent Claim
40 words
A journal bearing as defined in claim 2 wherein said tubes have axes lying in a plurality of planes perpendicular to the ring axis, said tubes having outer ends terminating at an imaginary cylinder surface centered on the ring axis.
Claim 7
Dependent Claim
33 words
A journal bearing as defined in claim 1 wherein said socket elements are perforated strips extending generally parallel to the ring axis, said mass being part of a concrete shell surrounding said ring.
Claim 8
Dependent Claim
25 words
A journal bearing as defined in claim 6 wherein said shell is flanked by a pair of hoops welded to opposite ends of said strips.
Claim 9
Dependent Claim
19 words
A journal bearing as defined in claim 6 wherein said strips are curved generally parallel to said outer surface.
Claim 10
Dependent Claim
98 words
A swivelable journal bearing for a shaft, comprising: a shaft-supported inner ring with a spherically convex outer surface; an outer annular body divided into a multiplicity of socket elements rigidly welded to one another, said body coaxially surrounding said ring with clearance, each of said socket elements being formed with at least one throughgoing aperture facing said ring; a low-friction insert in each aperture projecting into said clearance, said insert having a spherically concave face in contact with and conforming to said outer surface; and a plug of a hardenable substance in each aperture back-stopping the insert thereof.
Claim 11
Dependent Claim
98 words
A swivelable journal bearing for a shaft, comprising: a shaft-supported inner ring with a spherically convex outer surface; an outer annular body divided into a multiplicity of socket elements rigidly welded to one another, said body coaxially surrounding said ring with clearance, each of said socket elements being formed with at least one throughgoing aperture facing said ring; a low-friction insert in each aperture projecting into said clearance, said insert having a spherically concave face in contact with and conforming to said outer surface; and a plug of a hardenable substance in each aperture back-stopping the insert thereof.
Claim 12
Dependent Claim
14 words
A journal bearing as defined in claim 9 wherein said plug consists of concrete.
Claim 13
Dependent Claim
68 words
A swivelable journal bearing for a shaft, comprising: a shaft-supported inner ring with a spherically convex outer surface; a multiplicity of rigid tubes extending generally toward the ring axis and forming a body coaxially surrounding said ring with clearance; and a low-friction insert in each of said tubes projecting into said clearance, said insert having a spherically concave face in contact with and conforming to said outer surface.
Claim 14
Dependent Claim
68 words
A swivelable journal bearing for a shaft, comprising: a shaft-supported inner ring with a spherically convex outer surface; a multiplicity of rigid tubes extending generally toward the ring axis and forming a body coaxially surrounding said ring with clearance; and a low-friction insert in each of said tubes projecting into said clearance, said insert having a spherically concave face in contact with and conforming to said outer surface.
Claim 15
Dependent Claim
20 words
A journal bearing as defined in claim 11 wherein said tubes are welded together in a cluster with intervening spaces.
Claim 16
Dependent Claim
15 words
A journal bearing as defined in claim 12, further comprising a lubricant occupying said spaces.
Claim 17
Dependent Claim
20 words
A journal bearing as defined in claim 11 wherein said tubes are embedded in a concrete shell surrounding said ring.
Claim 18
Dependent Claim
40 words
A journal bearing as defined in claim 11 wherein said tubes have axes lying in a plurality of planes perpendicular to the ring axis, said tubes having outer ends terminating at an imaginary cylinder surface centered on the ring axis.
References Cited (Backward Citations)
US3535006A
Cited
US3938868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-06 | 1981-08-08 | 1982-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-06 | 1985-08-08 | 1986-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-06 | 1989-08-08 | 1990-02-07 | $7700.00 | Window Closed / Lapsed |