Patent US4368933A successfully refreshed from Google Patents.
US4368933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Housing of a bearing with a pressure-compensating arrangement
Assignee: KUHBIER GmbH AND Co
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Filing: 1981-09-14
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Granted: 1983-01-18
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Expires: 2001-09-14
Abstract
Abstract In a housing bearing composed of two parts connected to each other to form a chamber receiving a bearing a pressure-compensating valve is provided which includes an enclosure secured to the housing and having an internal wall, and a cover connected to the enclosure and spaced therefrom to receive a diaphragm. The diaphragm has a number of needle-shaped perforations which open when the diaphragm expands in response to overpressure in the bearing housing and close when the diaphragm is in inoperative position.
Inventors
- 👤 Alfons Motsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:49
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/30; F16C33/66; F16C33/6637; F16C33/723; F16C33/726; F16C35/00; F16C35/04; F16C35/042; F16C2300/00; F16C2300/02
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
137 words
In a bearing housing having two parts connected to each other and receiving a bearing mounted on a shaft, a combination comprising means on said shaft for sealing the housing against lubrication oil leakage, and pressure-compensating means mounted at the side of the housing opposite to that carrying said sealing means; said pressure-compensating means including an enclosure connected to one of said parts and a cover closing said housing and connected to said enclosure, said cover being spaced from said enclosure to form a space therebetween, and an elastic diaphragm interposed in said space and formed with a number of perforations arranged in communication with ambient air, said diaphragm being operative for compensation of over pressure which may occur in said housing due to the spinning movement of lubrication oil particles contained in said housing during operation.
Claim 2
Dependent Claim
137 words
In a bearing housing having two parts connected to each other and receiving a bearing mounted on a shaft, a combination comprising means on said shaft for sealing the housing against lubrication oil leakage, and pressure-compensating means mounted at the side of the housing opposite to that carrying said sealing means; said pressure-compensating means including an enclosure connected to one of said parts and a cover closing said housing and connected to said enclosure, said cover being spaced from said enclosure to form a space therebetween, and an elastic diaphragm interposed in said space and formed with a number of perforations arranged in communication with ambient air, said diaphragm being operative for compensation of over pressure which may occur in said housing due to the spinning movement of lubrication oil particles contained in said housing during operation.
Claim 3
Dependent Claim
30 words
The combination of claim 1, wherein said perforations are of a needle-shaped configuration and adapted to open when said diaphragm expands under said overpressure and close when said diaphragm retracts.
Claim 4
Dependent Claim
23 words
The combination of claim 2, wherein said enclosure has an inner wall, said wall being spaced from said enclose to form said space.
Claim 5
Dependent Claim
29 words
The combination of claim 3, wherein said inner wall is provided with an opening forming a first air passage and communicating an interior of said housing with said space.
Claim 6
Dependent Claim
18 words
The combination of claim 4, wherein said cover is formed with an opening forming a second air passage.
Claim 7
Dependent Claim
16 words
The combination of claim 5, wherein said first air passage is substantially coaxial with said shaft.
Claim 8
Dependent Claim
40 words
The combination of claim 6, wherein said inner wall of said closure is formed at the lower part thereof with a bore, said bore admitting lubrication oil particles spinned out from the interior of the housing back to said interior.
Claim 9
Dependent Claim
17 words
The combination of claim 7, wherein said perforations are formed at an upper part of said diaphragm.
Claim 10
Dependent Claim
19 words
The combination of claim 8, wherein said second air passage is formed at a lower part of said cover.
Claim 11
Dependent Claim
16 words
The combination of claim 9, wherein said housing parts are made out of synthetic plastic material.
Claim 12
Dependent Claim
31 words
The combination of claim 10, wherein said enclosure is formed with a snapping circular formation and said cover is formed with a circular groove receiving said formation in a snapped-in relation.
Claim 13
Dependent Claim
18 words
The combination of claim 11, wherein said enclosure and said cover are made out of synthetic plastic material.
Claim 14
Dependent Claim
24 words
The combination of claim 9, wherein said sealing means are positioned at an end of said housing opposite to that carrying said pressure-compensating means.
Claim 15
Dependent Claim
40 words
The combination of claim 13, wherein said sealing means include a recessed support connected to the second one of said housing parts, a closing shell closing said housing from said opposite end, and a sealing ring positioned in said support.
Claim 16
Dependent Claim
16 words
The combination of claim 14, further including rings in said support for protecting said sealing ring.
Claim 17
Dependent Claim
12 words
The combination of claim 15, wherein said sealing ring is of felt.
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) | 1986-01-17 | 1986-07-19 | 1987-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-17 | 1990-07-19 | 1991-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-17 | 1994-07-19 | 1995-01-18 | $7700.00 | Window Closed / Lapsed |