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US5017868A Expired / Lapsed US ⏱️ 0.0 years remaining

Bearing assembly with encoder ring in slidable contact with sensor

Assignee: Torrington Co Ltd
•
Filing: 1990-03-01
•
Granted: 1991-05-21
•
Expires: 2010-03-01
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Abstract

Abstract An encoder ring with multiple North and South poles around its circumference is connected to the rotatable race of a bearing assembly for rotation with the rotatable race. A sensor is connected to the fixed race. The encoder ring is kept in slidable contact with the sensor. The slidable contact is maintained by a flexible member which keeps the encoder ring in slidable contact with the sensor.

Inventors

  • 👤 Christian Hajzler

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 19:16
CPC Classifications
G; G01; G01P; G01P3/00; G01P3/42; G01P3/44; G01P3/48; G01P3/481; G01P3/487; F; F16; F16C; F16C41/00; F16C41/007; G01P3/443; F16C2326/00; F16C2326/20; F16C2326/24

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 93 words
A bearing assembly comprising: an inner race and an outer race providing an inner race--outer race annulus, one of said races being fixed, the other race being rotatable; rolling members located in said annulus around the inner race circumference; a magnetic field sensor connected to the fixed race; and an encoder ring with multiple north and south poles around its circumference and elastically connected to the rotatable race for rotation with rotatable race, the elastic connection being a biasing means for maintaining the encoder ring in slidable contact with the magnetic field sensor.
Claim 2
Dependent Claim 93 words
A bearing assembly comprising: an inner race and an outer race providing an inner race--outer race annulus, one of said races being fixed, the other race being rotatable; rolling members located in said annulus around the inner race circumference; a magnetic field sensor connected to the fixed race; and an encoder ring with multiple north and south poles around its circumference and elastically connected to the rotatable race for rotation with rotatable race, the elastic connection being a biasing means for maintaining the encoder ring in slidable contact with the magnetic field sensor.
Claim 3
Dependent Claim 16 words
A bearing assembly in accordance with claim 1 wherein: the inner race is the rotatable race.
Claim 4
Dependent Claim 45 words
A bearing in accordance with claim 2 wherein the biasing means comprises: a mounting ring connected to the inner race and having an elastic portion in contact with the encoder ring, said elastic portion tapering radially inwardly from the encoder ring toward the inner race.
Claim 5
Dependent Claim 43 words
A bearing in accordance with claim 2 wherein the biasing means comprises: a member mounted about the inner race and having two radially separated axially extending portions interconnected by a diagonal flexible portion, the radially outer axially extending portion contacting the encoder ring.
Claim 6
Dependent Claim 42 words
A bearing in accordance with claim 2 wherein the biasing means comprises: an annular mounting ring about the inner race and an annular member mounted on the mounting ring and made of a compressible material, the compressible material contacting the encoder ring.
Claim 7
Dependent Claim 30 words
A bearing in accordance with claim 2 wherein the biasing means comprises: a flexible disk mounted about the inner race, and the encoder ring is attached to the flexible disk.
Claim 8
Dependent Claim 16 words
A bearing assembly in accordance with claim 1 wherein the outer race is the rotatable race.
Claim 9
Dependent Claim 45 words
A bearing in accordance with claim 7 wherein the biasing means comprises: a mounting ring connected to the outer race and having an elastic portion in contact with the encoder ring, said elastic portion tapering radially inwardly from the encoder ring toward the outer race.
Claim 10
Dependent Claim 43 words
A bearing in accordance with claim 7 wherein the biasing means comprises: a member mounted about the outer race and having two radially separated axially extending portions interconnected by a diagonal flexible portion, the radially inner axially extending portion contacting the encoder ring.
Claim 11
Dependent Claim 44 words
A bearing in accordance with claim 7 wherein the biasing means comprises: an annular mounting ring about the outer race and an annular member mounted on the mounting ring and ring and made of a compressible material, the compressible material contacting the encoder ring.
Claim 12
Dependent Claim 30 words
A bearing in accordance with claim 7 wherein the biasing means comprises: a flexible disk mounted about the outer race, and the encoder ring is attached to the flexible disk.
Claim 13
Dependent Claim 126 words
A bearing assembly comprising: an inner race and an outer race providing an inner race--outer race annulus, one of said races being fixed, the other race being rotatable; rolling members located in said annulus around the inner race circumference; an encoder ring with multiple north and south poles around its circumference and connected to the rotatable race for rotation with the rotatable race; and a magnetic field sensor elastically connected to the fixed race, the encoder ring being in slidable contact with the sensor the elastic connection comprising an annular member connected to the fixed race and having a radially extending flange axially spaced from the sensor, and an elastomer ring having its axial ends connected to the sensor and the flange at radially offset points.
Claim 14
Dependent Claim 126 words
A bearing assembly comprising: an inner race and an outer race providing an inner race--outer race annulus, one of said races being fixed, the other race being rotatable; rolling members located in said annulus around the inner race circumference; an encoder ring with multiple north and south poles around its circumference and connected to the rotatable race for rotation with the rotatable race; and a magnetic field sensor elastically connected to the fixed race, the encoder ring being in slidable contact with the sensor the elastic connection comprising an annular member connected to the fixed race and having a radially extending flange axially spaced from the sensor, and an elastomer ring having its axial ends connected to the sensor and the flange at radially offset points.

References Cited (Backward Citations)

US3716121A Cited
US3683219A Cited
US3742243A Cited
US3890517A Cited
US4017756A Cited
US4161120A Cited
US4667156A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-05-20 1994-11-19 1995-05-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-05-20 1998-11-19 1999-05-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-05-20 2002-11-19 2003-05-21 $7700.00 Window Closed / Lapsed

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