US4509364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wear measuring arrangement for bearings
Assignee: SKF GmbH
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Filing: 1984-08-07
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Granted: 1985-04-09
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Expires: 2004-08-07
Abstract
Abstract In a wear measuring arrangement for bearings, a support sleeve is slidably mounted in one of the bearing rings, and supports an inductive sensor having a plunger type armature with a probe tip. The support sleeve is mounted to be held in a position with the probe tip away from the other bearing part, and to be released by a control shaft. Upon release, a spring arranged in the bore of the support sleeve resiliently urges the probe tip to engage the other bearing part and pierce any grease layer on the surface thereof.
Inventors
- 👤 Karl H. Schutz
- 👤 Gunter Mauch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:46
CPC Classifications
F; F16; F16C; F16C23/00; F16C23/02; F16C23/04; F16C23/043; F16C23/045; F16C17/00; F16C17/12; F16C17/24; F16C17/246; G; G01; G01B; G01B7/00; G01B7/14; G01B7/144
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
92 words
A wear measuring apparatus for measuring wear on a sliding surface of a first bearing part, comprising a support sleeve slidably arranged in a second bearing part for movement between upper and lower positions, away from and toward said sliding surface, and a sensor assembly, said sensor assembly including a sensor, a plunger-type armature, a probe tip connected to said armature, and a spring, said spring being mounted with respect to said support sleeve and said plunger-type armature so as to urge said plunger-type armature in the direction of said sliding surface.
Claim 2
Dependent Claim
92 words
A wear measuring apparatus for measuring wear on a sliding surface of a first bearing part, comprising a support sleeve slidably arranged in a second bearing part for movement between upper and lower positions, away from and toward said sliding surface, and a sensor assembly, said sensor assembly including a sensor, a plunger-type armature, a probe tip connected to said armature, and a spring, said spring being mounted with respect to said support sleeve and said plunger-type armature so as to urge said plunger-type armature in the direction of said sliding surface.
Claim 3
Dependent Claim
10 words
The apparatus of claim 1, wherein said sensor is inductive.
Claim 4
Dependent Claim
40 words
The wear measuring device of claim 1, wherein said support sleeve and sensor assembly are mounted in a bore formed in said second bearing part, and further comprising means for moving said support sleeve between said upper and lower positions.
Claim 5
Dependent Claim
32 words
The wear measuring device of claim 3, wherein said means for moving is a mechanical link coupling a control shaft to engage a recess in the outer surface of said support sleeve.
Claim 6
Dependent Claim
32 words
The wear measuring device of claim 3, wherein said support sleeve has a flange engaging a shoulder formed in said second bearing part when said support sleeve is in said lower position.
Claim 7
Dependent Claim
35 words
The wear measuring device of claim 1, wherein said support sleeve is held in said upper position by a spring loaded ball, said ball engaging a recess in the outer surface of said support sleeve.
Claim 8
Dependent Claim
48 words
The wear measuring device of claim 1, wherein said sensor is inductive and includes a coil positioned in a first bore formed in said support sleeve, said coil being coupled to a guide shell, arranged in a second bore formed in said support sleeve, by said plunger-type armature.
Claim 9
Dependent Claim
40 words
The wear measuring device of claim 7, wherein said guide shell has a U-shaped cross-section, abuts said spring at its open end, and is rigidly fixed with respect to said armature, said spring imparting contact resistance to said probe tip.
Claim 10
Dependent Claim
40 words
The wear measuring device of claim 1, further comprising a guide shell slidably arranged in said support sleeve, wherein said guide shell within said support sleeve engages spring means with prestress when said support sleeve is in the upper position.
Claim 11
Dependent Claim
104 words
A wear measuring apparatus for measuring wear on a sliding surface of a first bearing part, comprising an outer sleeve arranged in a bore formed in a second bearing part, a support sleeve slidably arranged in said outer sleeve for movement between upper and lower positions, away from and toward said sliding surface, and a sensor assembly, said sensor assembly including a sensor, a plunger-type armature, a probe tip connected to said armature, and a spring, said spring being mounted with respect to said support sleeve and said plunger-type armature so as to urge said plunger-type armature in the direction of said sliding surface.
Claim 12
Dependent Claim
104 words
A wear measuring apparatus for measuring wear on a sliding surface of a first bearing part, comprising an outer sleeve arranged in a bore formed in a second bearing part, a support sleeve slidably arranged in said outer sleeve for movement between upper and lower positions, away from and toward said sliding surface, and a sensor assembly, said sensor assembly including a sensor, a plunger-type armature, a probe tip connected to said armature, and a spring, said spring being mounted with respect to said support sleeve and said plunger-type armature so as to urge said plunger-type armature in the direction of said sliding surface.
Claim 13
Dependent Claim
47 words
The wear measuring apparatus of claim 10, wherein said support sleeve has a flange engaging a shoulder formed in said outer sleeve when said support sleeve is in said lower position, and said outer sleeve has a flange engaging a shoulder formed in said second bearing part.
References Cited (Backward Citations)
US4092053A
Cited
SU783563A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-08 | 1988-10-08 | 1989-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-08 | 1992-10-08 | 1993-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-08 | 1996-10-08 | 1997-04-09 | $7700.00 | Window Closed / Lapsed |