US3929389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion bearing assembly for a converter carrying trunnion
Assignee: Voestalpine AG
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Filing: 1974-11-27
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Granted: 1975-12-30
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Expires: 1994-11-27
Abstract
Abstract An expansion bearing assembly for the carrying trunnion of a converter, for instance a slide bearing, an articulation bearing or a ball and roller bearing. This bearing assembly comprises a sliding bushing axially displaceable within the bearing housing and an inner race secured in place by distance rings fastened to the carrying trunnion. The sliding bushing is provided with bores, into which cylindrical blocks acting as sliding elements are inserted. Said sliding elements are surrounded by sleeves made of bearing metal, in particular of bronze. By the bearing assembly of the invention it is possible to keep the coefficient of friction between sliding parts and fixed parts of the carrying ring constant and low, which means that the occurring axial force is small and that thus the carrying ring is subjected to less wear.
Inventors
- 👤 Ernst Riegler
- 👤 Manfred Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:43
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/46; C21C5/50; F; F16; F16C; F16C13/00; F16C13/02; F16C13/06; F16C23/00; F16C23/06; F16C23/08; F16C33/00; F16C33/02; F16C33/04; F16C33/26
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
71 words
An expansion bearing assembly for a converter carrying trunnion, which comprises a bearing housing, an expansion bearing stand, a sliding bushing provided with bores, said sliding bushing being axially displaceable within the bearing housing, an inner race secured in place by means of distance rings fastened to the carrying trunnion, cylindrical blocks acting as sliding elements peripherally distributed over the sliding bushing and inserted into the bores of the sliding bushing.
Claim 2
Dependent Claim
71 words
An expansion bearing assembly for a converter carrying trunnion, which comprises a bearing housing, an expansion bearing stand, a sliding bushing provided with bores, said sliding bushing being axially displaceable within the bearing housing, an inner race secured in place by means of distance rings fastened to the carrying trunnion, cylindrical blocks acting as sliding elements peripherally distributed over the sliding bushing and inserted into the bores of the sliding bushing.
Claim 3
Dependent Claim
18 words
An expansion bearing assembly as set forth in claim 1, wherein the expansion bearing is a slide bearing.
Claim 4
Dependent Claim
18 words
An expansion bearing assembly as set forth in claim 1, wherein the expansion bearing is an articulation bearing.
Claim 5
Dependent Claim
18 words
An expansion bearing assembly as set forth in claim 1, wherein the expansion bearing is a ball bearing.
Claim 6
Dependent Claim
18 words
An expansion bearing assembly as set forth in claim 1, wherein the expansion bearing is a roller bearing.
Claim 7
Dependent Claim
22 words
An expansion bearing assembly as set forth in claim 1, wherein the cylindrical blocks acting as sliding elements are surrounded by sleeves.
Claim 8
Dependent Claim
19 words
An expansion bearing assembly as set forth in claim 6, wherein the sleeves are made of a bearing metal.
Claim 9
Dependent Claim
17 words
An expansion bearing assembly as set forth in claim 6, wherein the sleeves are made of bronze.
Claim 10
Dependent Claim
27 words
An expansion bearing assembly as set forth in claim 1, wherein the cylindrical blocks acting as sliding elements are made of a synthetic material having sliding properties.
Claim 11
Dependent Claim
22 words
An expansion bearing assembly as set forth in claim 9, wherein the cylindrical blocks acting as sliding elements are made of polytetrafluorethylene.
Claim 12
Dependent Claim
41 words
An expansion bearing assembly as set forth in claim 1, the expansion bearing having a pressure zone, wherein the cylindrical blocks acting as sliding elements are arranged only in the pressure zone over approx. one quarter of the sliding bushing periphery.
Claim 13
Dependent Claim
23 words
An expansion bearing assembly as set forth in claim 11, wherein the cylindrical blocks acting as sliding elements are arranged in one row.
Claim 14
Dependent Claim
23 words
An expansion bearing assembly as set forth in claim 11, wherein the cylindrical blocks acting as sliding elements are arranged in several rows.
Claim 15
Dependent Claim
24 words
An expansion bearing assembly as set forth in claim 1, wherein the cylindrical blocks acting as sliding elements are supported by a protecting bushing.
Claim 16
Dependent Claim
25 words
An expansion bearing assembly as set forth in claim 14, wherein the cylindrical blocks acting as sliding elements are supported by the expansion bearing stand.
Claim 17
Dependent Claim
41 words
An expansion bearing assembly as set forth in claim 1, further comprising additional sliding elements for accommodating transversal forces, said sliding elements being arranged in the horizontal plane of the bearing on opposite sides over a peripheral range of approx. 30*.
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) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |