US3832897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stationary device sensitive to torque in rotating shafts
Assignee: Individual
•
Filing: 1973-04-02
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Granted: 1974-09-03
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Expires: 1993-04-02
Abstract
Abstract This disclosure relates to a stationary device for measuring stresses particularly in a rotating shaft comprising a housing, a bore in the housing, a ring-like member in the bore, a bearing assembly within the ring-like member, the bearing assembly having inner and outer races and anti-friction elements therebetween, a shaft mounted for rotation within the bearing assembly, transducer means between the bearing assembly and the housing for detecting forces caused by deflection of the shaft, and means for translating the detected deflection forces into the output torque of the shaft.
Inventors
- 👤 C Schenck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:02
CPC Classifications
G; G01; G01L; G01L3/00; G01L3/02; G01L3/04; G01L3/10; G01L3/108
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
81 words
A stationary device for measuring stresses particularly in a rotating shaft comprising a housing, a bore in said housing, a bearing assembly within said bore, said bearing assembly having inner and outer races and anti-friction elements therebetween, a shaft within said bearing assembly, means for rotating said shaft, transducer means between said bearing assembly and said housing for detecting forces caused by deflection of said shaft, and means for translating the detected deflection forces into the output torque of said shaft.
Claim 2
Dependent Claim
81 words
A stationary device for measuring stresses particularly in a rotating shaft comprising a housing, a bore in said housing, a bearing assembly within said bore, said bearing assembly having inner and outer races and anti-friction elements therebetween, a shaft within said bearing assembly, means for rotating said shaft, transducer means between said bearing assembly and said housing for detecting forces caused by deflection of said shaft, and means for translating the detected deflection forces into the output torque of said shaft.
Claim 3
Dependent Claim
26 words
The device as defined in claim 1 wherein said shaft carries a gear in meshed relationship with a drive gear for imparting rotation to said shaft.
Claim 4
Dependent Claim
51 words
The device as defined in claim 1 wherein said transducer means includes at least a pair of strain gages, one of said strain gages being positioned for detecting compressive forces caused by shaft deflection, and the other of said strain gages being positioned for detecting tensile forces caused by shaft deflection.
Claim 5
Dependent Claim
37 words
The device as defined in claim 1 wherein said transducer means includes at least a pair of strain gages, and said translating means includes a circuit in which said strain gages define arms of a Wheatstone bridge.
Claim 6
Dependent Claim
26 words
The device as defined in claim 1 including means for supporting said transducer means within said housing, and said supporting means is a generally ring-like member.
Claim 7
Dependent Claim
26 words
The device as defined in claim 1 including means for supporting said transducer means within said housing, and said supporting means further supports said bearing assembly.
Claim 8
Dependent Claim
34 words
The device as defined in claim 1 including means for supporting said transducer means within said housing, said supporting means is a generally ring-like member, and said ring-like member supports therewithin said bearing assembly.
Claim 9
Dependent Claim
46 words
The device as defined in claim 1 including means for supporting said transducer means within said housing, said supporting means is a generally ring-like member, said ring-like member supports therewithin said bearing assembly, and said ring-like member is disposed in non-rotatable relationship relative to said housing.
Claim 10
Dependent Claim
35 words
The device as defined in claim 1 wherein said transducer means includes at least first means for detecting compressive forces caused by shaft deflection and second means for detecting tensile forces caused by shaft deflection.
Claim 11
Dependent Claim
28 words
The device as defined in claim 9 wherein said first and second detecting means define arms of a Wheatstone bridge forming at least in part said translating means.
Claim 12
Dependent Claim
29 words
The device as defined in claim 10 including means for supporting said first and second detecting means within said housing, and said supporting means is a generally ring-like member.
Claim 13
Independent Claim
17 words
The device as defined in clain 11 wherein said bearing assembly is housed within said ring-like member.
Claim 14
Independent Claim
17 words
The device as defined in clain 11 wherein said bearing assembly is housed within said ring-like member.
Claim 15
Dependent Claim
37 words
The device as defined in claim 12 wherein said first detecting means is supported upon an exterior surface of said ring-like member and said second detecting means is supported upon an interior surface of said ring-like member.
Claim 16
Dependent Claim
31 words
The device as defined in claim 12 wherein said ring-like member has interior and exterior peripheral surfaceS, and said first and second detecting means are supported upon the same peripheral surface.
Claim 17
Dependent Claim
40 words
The device as defined in claim 12 wherein said ring-like member has interior and exterior peripheral surfaces, and at least one of said peripheral surfaces are flattened to accommodate thereon at least one of said first and second detecting means.
Claim 18
Dependent Claim
30 words
The device as defined in claim 12 wherein said first and second detecting means each include a pair of detectors with each detector defining an arm of said Wheatstone bridge.
Claim 19
Dependent Claim
33 words
The device as defined in claim 16 wherein said ring-like member has interior and exterior peripheral surfaces, and said first and second detecting means are disposed on opposite ones of said peripheral surfaces.
Claim 20
Dependent Claim
24 words
The device as defined in claim 9 wherein said first and second detecting means each are defined by at least a pair of detectors.
Claim 21
Dependent Claim
43 words
The device as defined in claim 9 wherein said first and second detecting means each are defined by at least a pair of detectors, and said detectors each define an arm of a Wheatstone bridge forming at least in part said translating means.
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) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |