Patent US3586399A successfully refreshed from Google Patents.
US3586399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil-free bearing assembly with device for suppression of bearing noise
Assignee: Siemens AG
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Filing: 1969-03-26
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Granted: 1971-06-22
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Expires: 1989-03-26
Abstract
Abstract An oil-free bearing assembly for the journaling of shafts, particularly those of canned or sealed electric motors, is equipped with means for suppressing noise in the bearing. The shaft is journaled in a fixedly held bearing bushing of synthetic plastic. A loosely mounted second bushing or similar structure of synthetic plastic engages the shaft, preferably in proximity of the fixed bushing, and is subject to the force of adjustable means for imposing upon the shaft a radial bearing pressure that minimizes the noise in the bearing.
Inventors
- 👤 Martin Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:00
CPC Classifications
F; F16; F16C; F16C25/00; F16C25/02; F16C25/04; H; H02; H02K; H02K5/00; H02K5/04; H02K5/16; H02K5/167; H02K5/1672; F16C17/00; F16C17/02; F16C2380/00; F16C2380/26; F16C33/00; F16C33/02; F16C33/04; F16C33/20
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
72 words
With an oil-free bearing assembly of synthetic plastic for the journaling of shafts, in combination, a device for suppressing bearing noises comprising a shaft, a substantially fixed bearing structure of synthetic plastic surrounding said shaft in journaling engagement therewith, another structure of synthetic plastic engageable with said shaft and displaceable radially thereof, and adjustable force means for imposing upon said latter structure a force having a radial bearing-pressure component for reducing noise.
Claim 2
Dependent Claim
72 words
With an oil-free bearing assembly of synthetic plastic for the journaling of shafts, in combination, a device for suppressing bearing noises comprising a shaft, a substantially fixed bearing structure of synthetic plastic surrounding said shaft in journaling engagement therewith, another structure of synthetic plastic engageable with said shaft and displaceable radially thereof, and adjustable force means for imposing upon said latter structure a force having a radial bearing-pressure component for reducing noise.
Claim 3
Dependent Claim
19 words
In a bearing assembly according to claim 1, said other structure being located immediately adjacent to said bearing structure.
Claim 4
Dependent Claim
42 words
In a bearing assembly according to claim 1, said bearing structure being a bushing and said other structure being a bushing loosely seated upon said shaft, said force means comprising a spring actuable upon said loosely seated bushing in the radial direction.
Claim 5
Dependent Claim
27 words
In a bearing assembly according to claim 1, said force means comprising an adjustable abutment in engagement with said spring whereby said pressure component can be varied.
Claim 6
Dependent Claim
25 words
A bearing assembly according to claim 3, comprising a bearing shell, said loose bushing and said fixed bushing being both accommodated in said same shell.
Claim 7
Dependent Claim
18 words
In a bearing assembly according to claim 5, said two bushings being identical as to shape and size.
Claim 8
Dependent Claim
39 words
In a bearing assembly according to claim 5, said other structure for providing radial pressure having a diameter slightly larger than the diameter of said bearing structure, and said bearing shell forming a lateral guide for said other structure.
Claim 9
Dependent Claim
38 words
In a bearing assembly according to claim 1, said other structure having an arcuate shape and having a projection in engagement with said force means, and fixed guide means engageable with said other structure to prevent rotation thereof.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |