Patent US5501531A successfully refreshed from Google Patents.
US5501531A
Expired / Lapsed
US
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Cardan shaft bearing
Assignee: Carl Freudenberg KG
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Filing: 1994-05-11
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Granted: 1996-03-26
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Expires: 2014-05-11
Abstract
Abstract A Cardan shaft bearing is disclosed in which the outer ring of an antifriction bearing and a retainer ring are connected together by a rubber ring which is vulcanized in place. The outer ring and the retainer ring rest with radial elasticity against each other. The rubber ring has a U-shaped profile which is open parallel to the axis of the Cardan shaft bearing. The rubber ring is fixed on the outer ring and on the retainer ring at least in part on the axial ends of these rings. The inner ring of the antifriction bearing is provided with rubberizing on the side facing the shaft.
Inventors
- 👤 Arno Hamaekers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:04
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/22; B60K17/24; F; F16; F16C; F16C27/00; F16C27/06; F16C27/066; F16C19/00; F16C19/02; F16C19/04; F16C19/06; F16C2326/00; F16C2326/01; F16C2326/06; F16C27/04; F16C27/045
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
84 words
A shaft bearing for a rotating shaft comprising: an antifriction bearing comprising an inner and an outer ring, said inner ring comprising rubberizing on a radial surface faring said shaft; a retainer ring; a rubber ring connecting said outer ring and said retainer ring, said rubber ring comprising a U-shaped profile which is open in a direction parallel to an axis of said shaft bearing, said rubber ring being fixed at least partially on axial ends of said outer ring and said retainer ring.
Claim 2
Dependent Claim
84 words
A shaft bearing for a rotating shaft comprising: an antifriction bearing comprising an inner and an outer ring, said inner ring comprising rubberizing on a radial surface faring said shaft; a retainer ring; a rubber ring connecting said outer ring and said retainer ring, said rubber ring comprising a U-shaped profile which is open in a direction parallel to an axis of said shaft bearing, said rubber ring being fixed at least partially on axial ends of said outer ring and said retainer ring.
Claim 3
Dependent Claim
18 words
The shaft bearing of claim 1, wherein: said rubberizing has profiling on a radial surface facing said shaft.
Claim 4
Dependent Claim
17 words
The shaft bearing of claim 2, wherein: said profiling comprises grooves which are open towards said shaft.
Claim 5
Dependent Claim
36 words
The shaft bearing of claim 1, wherein: said rubber ring and said outer ring have stop surfaces facing each other and wherein said stop surfaces are covered at least in part by an elastic damping layer.
Claim 6
Dependent Claim
20 words
The shaft bearing of claim 4, wherein: said damping layers and said rubber ring are formed as a single piece.
Claim 7
Dependent Claim
20 words
The shaft bearing of claim 4, wherein: at least one of said damping layers is configured in a sine shape.
Claim 8
Dependent Claim
94 words
A shaft bearing for a rotating shaft comprising: an antifriction bearing comprising an inner and an outer ring, said inner ring comprising rubberizing on a radial surface facing said shaft; a retainer ring; a rubber ring connecting said outer ring and said retainer ring, said rubber ring comprising a U-shaped profile which is open in a direction parallel to an axis of said shaft bearing, said rubber ring being fixed at least partially on axial ends of said outer ring and said retainer ring, wherein said retainer ring rests on an elastic spring ring.
Claim 9
Dependent Claim
94 words
A shaft bearing for a rotating shaft comprising: an antifriction bearing comprising an inner and an outer ring, said inner ring comprising rubberizing on a radial surface facing said shaft; a retainer ring; a rubber ring connecting said outer ring and said retainer ring, said rubber ring comprising a U-shaped profile which is open in a direction parallel to an axis of said shaft bearing, said rubber ring being fixed at least partially on axial ends of said outer ring and said retainer ring, wherein said retainer ring rests on an elastic spring ring.
Claim 10
Dependent Claim
28 words
The shaft bearing of claim 7, wherein: said spring ring comprises liquid-filled cavities distributed circumferentially, and wherein said liquid-filled cavities are in communication with each other via openings.
Claim 11
Dependent Claim
30 words
The shaft bearing of claim 8, wherein: said liquid-filled cavities are sealed in a liquid-tight manner by said retainer ring on a radially outwardly facing side of said liquid-filled cavities.
Claim 12
Dependent Claim
22 words
The shaft bearing of claim 8, wherein: said liquid-filled cavities are separated from each other by flexible partition walls of membrane-type thinness.
Claim 13
Dependent Claim
29 words
The shaft bearing of claim 7, wherein: said retainer ring and a bearing ring arranged on an outer circumference of said spring ring are connected by a force fit.
Claim 14
Dependent Claim
14 words
The shaft bearing of claim 11, wherein: said bearing ring reinforces said spring ring.
Claim 15
Dependent Claim
20 words
The shaft bearing of claim 7, wherein: said spring ring and said rubber ring are formed as a single piece.
Claim 16
Dependent Claim
94 words
A shaft bearing for a rotating shaft comprising: an antifriction bearing comprising an inner and an outer ring, said inner ring comprising rubberizing on a radial surface facing said shaft; a retainer ring; an elastic spring ring connected to said retainer ring, said spring ring comprising liquid-filled cavities distributed circumferentially, said liquid-filled cavities being in communication with each other via openings; and a rubber ring connecting said outer ring and said spring ring, said rubber ring comprising a U-shaped profile which is open in a direction parallel to an axis of said shaft bearing.
Claim 17
Dependent Claim
94 words
A shaft bearing for a rotating shaft comprising: an antifriction bearing comprising an inner and an outer ring, said inner ring comprising rubberizing on a radial surface facing said shaft; a retainer ring; an elastic spring ring connected to said retainer ring, said spring ring comprising liquid-filled cavities distributed circumferentially, said liquid-filled cavities being in communication with each other via openings; and a rubber ring connecting said outer ring and said spring ring, said rubber ring comprising a U-shaped profile which is open in a direction parallel to an axis of said shaft bearing.
Claim 18
Dependent Claim
18 words
The shaft bearing of claim 14, wherein: said rubberizing has profiling on a radial surface facing said shaft.
Claim 19
Dependent Claim
17 words
The shaft bearing of claim 15, wherein: said profiling comprises grooves which are open towards said shaft.
Claim 20
Dependent Claim
30 words
The shaft bearing of claim 14, wherein: said liquid-filled cavities are sealed in a liquid-tight manner by said retainer ring on a radially outwardly facing side of said liquid-filled cavities.
Claim 21
Dependent Claim
29 words
The shaft bearing of claim 14, wherein: said retainer ring and a bearing ring arranged on an outer circumference of said spring ring are connected by a force fit.
Claim 22
Dependent Claim
14 words
The shaft bearing of claim 18, wherein: said bearing ring reinforces said spring ring.
Claim 23
Dependent Claim
20 words
The shaft bearing of claim 14, wherein: said spring ring and said rubber ring are formed as a single piece.
Claim 24
Dependent Claim
36 words
The shaft bearing of claim 14, wherein: said rubber ring and said outer ring have stop surfaces facing each other and wherein said stop surfaces are covered at least in part by an elastic damping layer.
Claim 25
Dependent Claim
20 words
The shaft bearing of claim 21, wherein: said damping layers and said rubber ring are formed as a single piece.
Claim 26
Dependent Claim
20 words
The shaft bearing of claim 21, wherein: at least one of said damping layers is configured in a sine shape.
Claim 27
Dependent Claim
22 words
The shaft bearing of claim 14, wherein: said liquid-filled cavities are separated from each other by flexible partition walls of membrane-type thinness.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-03-26 | 1999-09-25 | 2000-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-03-26 | 2003-09-25 | 2004-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-03-26 | 2007-09-25 | 2008-03-26 | $7700.00 | Window Closed / Lapsed |