US4732494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing or roller bearing with data sensor
Assignee: Timken US LLC
•
Filing: 1986-10-01
•
Granted: 1988-03-22
•
Expires: 2006-10-01
Abstract
Abstract Bearing or roller bearing with data sensor of the type having a stationary element carrying a magnetic field sensor device and a rotating element carrying at least one multipole magnetized ring placed coaxially with the rotating element and separated from the sensor device by a gap.
Inventors
- 👤 Roger Guers
- 👤 Georges Godard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:30
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/142; G01D5/147; F; F16; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/78; F16C41/00; F16C41/007; G01P; G01P3/00; G01P3/42; G01P3/44; G01P3/443; G01P3/48; G01P3/481; G01P3/487; F16C19/00; F16C19/02; F16C19/04; F16C19/06
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
72 words
A bearing having a sensor, comprising: a first annular bearing element; a second annular bearing element which is rotatable relative to said first bearing element; a continuous magnetic wire ring rotatable coaxially with said second bearing element, a circumference of said ring defining multiple magnetized portions with circumferentially alternating north and south poles; and a magnetic sensor fixed to said first bearing element and spaced from said ring by a predetermined gap.
Claim 2
Dependent Claim
72 words
A bearing having a sensor, comprising: a first annular bearing element; a second annular bearing element which is rotatable relative to said first bearing element; a continuous magnetic wire ring rotatable coaxially with said second bearing element, a circumference of said ring defining multiple magnetized portions with circumferentially alternating north and south poles; and a magnetic sensor fixed to said first bearing element and spaced from said ring by a predetermined gap.
Claim 3
Dependent Claim
22 words
The bearing of claim 1, wherein said sensor comprises at least one Hall-effect proximity sensor including processing electronics and digital output means.
Claim 4
Dependent Claim
29 words
The bearing of claim 2 wherein said ring is formed of a magnetized alloy having a main component taken from the group consisting of iron, cobalt, chromium and vanadium.
Claim 5
Dependent Claim
24 words
The bearing of claim 3 including a non-magnetic ring supporting said magnetic ring, wherein said predetermined gap is between 0.1 mm and 1.5 mm.
Claim 6
Dependent Claim
30 words
The bearing of claim 4 wherein said first and second bearing elements comprise roller bearing rings and including a deflector fixed to said first bearing element and supporting said sensor.
Claim 7
Dependent Claim
12 words
The bearing of claim 5 wherein said deflector supports a bearing seal.
Claim 8
Dependent Claim
22 words
The bearing of claim 1, wherein said sensor comprises at least one magnetoresistor proximity sensor including processing electronics and digital output means.
Claim 9
Dependent Claim
29 words
The bearing of claim 7 wherein said ring is formed of a magnetized alloy having a main component taken from the group consisting of iron, cobalt, chromium and vanadium.
Claim 10
Dependent Claim
24 words
The bearing of claim 8 including a non-magnetic ring supporting said magnetic ring, wherein said predetermined gap is between 0.1 mm and 1.5 mm.
Claim 11
Dependent Claim
30 words
The bearing of claim 9 wherein said first and second bearing elements comprise roller bearing rings and including a deflector fixed to said first bearing element and supporting said sensor.
Claim 12
Dependent Claim
12 words
The bearing of claim 10 wherein said deflector supports a bearing seal.
Claim 13
Dependent Claim
29 words
The bearing of claim 1 wherein said ring is formed of a magnetized alloy having a main component taken from the group consisting of iron, cobalt, chromium and vanadium.
Claim 14
Dependent Claim
24 words
The bearing of claim 12 including a nonmagnetic ring supporting said magnetic ring, wherein said predetermined gap is between 0.1 mm and 1.5 mm.
Claim 15
Dependent Claim
30 words
The bearing of claim 13 wherein said first and second bearing elements comprise roller bearing rings and including a deflector fixed to said first bearing element and supporting said sensor.
Claim 16
Dependent Claim
12 words
The bearing of claim 14 wherein said deflector supports a bearing seal.
References Cited (Backward Citations)
DE975788C
Cited
US3573520A
Cited
FR2058704A5
Cited
GB1353306A
Cited
US3742243A
Cited
GB1509170A
Cited
US4167734A
Cited
US4259637A
Cited
US4319188A
Cited
DE2935965A1
Cited
EP0073903A2
Cited
US4646088A
Cited
FR2558223A1
Cited
US4656377A
Cited
FR2565045A1
Cited
FR2568377A1
Cited
FR2574501A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-03-22 | 1991-09-21 | 1992-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-22 | 1995-09-21 | 1996-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-22 | 1999-09-21 | 2000-03-22 | $7700.00 | Window Closed / Lapsed |