US3897987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing protection assembly
Assignee: Lockheed Martin Corp
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Filing: 1974-04-18
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Granted: 1975-08-05
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Expires: 1994-04-18
Abstract
Abstract Protection of ball bearings from destructive loads caused by high acceleration of short duration is achieved by arranging such bearings in an assembly which can undergo lateral translation during such high accelerations such that the inner and outer races of the bearings will simultaneously come to a stop during such lateral translation.
Inventors
- 👤 Angelo A Colao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:01
CPC Classifications
F; F16; F16C; F16C19/00; F16C19/52; F16C27/00; F16C27/08; F42; F42C; F42C19/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
90 words
In an assembly including a first member and a second member and at least one bearing having a rolling element therein intermediate the first and second members for permitting relative rotation therebetween, apparatus for providing protection of the bearing from destructive loads due to high momentary acceleration of the assembly, comprising: means for supporting said bearing for lateral translation; and means for providing a surface such that the inner and outer races of said bearing will under high acceleration undergo lateral translation and come to stop simultaneously at said surface.
Claim 2
Dependent Claim
90 words
In an assembly including a first member and a second member and at least one bearing having a rolling element therein intermediate the first and second members for permitting relative rotation therebetween, apparatus for providing protection of the bearing from destructive loads due to high momentary acceleration of the assembly, comprising: means for supporting said bearing for lateral translation; and means for providing a surface such that the inner and outer races of said bearing will under high acceleration undergo lateral translation and come to stop simultaneously at said surface.
Claim 3
Dependent Claim
40 words
Apparatus as defined in claim 1, wherein said means for supporting said bearing for lateral translation includes a pair of springs arranged either side of said bearing such that lateral translation of said bearing will compress one of said springs.
Claim 4
Dependent Claim
28 words
Apparatus as defined in claim 2, further including a slide bushing disposed intermediate said bearing and the first member, said slide bushing disposed against said pair of springs.
Claim 5
Dependent Claim
20 words
Apparatus as defined in claim 3, further including a second bearing arranged between said slide bushing and the second member.
Claim 6
Dependent Claim
26 words
Apparatus as defined in claim 4, further including first and second spacers disposed, respectively, between the inner and outer races of said bearing and second bearing.
Claim 7
Dependent Claim
30 words
Apparatus as defined in claim 5, further including a pair of lock rings for maintaining the relative positions of said bearing, said second bearing, said slide bushing and said spacers.
References Cited (Backward Citations)
US1904395A
Cited
US3214225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |