Patent US3722967A successfully refreshed from Google Patents.
US3722967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low heat generation turbine engine bearing
Assignee: United States Department of the Navy
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Filing: 1971-10-26
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Granted: 1973-03-27
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Expires: 1991-10-26
Abstract
Abstract A low heat generation roller bearing having inner and outer races. Oil is applied to the surface where the rollers and inner race contact by means of an oil jet nozzle. Centrifugal force and rotation of the rollers, forces the oil around the rollers to the outer race. Radial bores extend through the outer race and connect with one or more circumferential grooves to collect and aid in transmission of oil from the outer race. A path is provided to return the oil to an oil sump for scavenging back to an oil supply tank.
Inventors
- 👤 H Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:17
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/66; F16C33/6637; F16C33/6685; F16C19/00; F16C19/22; F16C19/24; F16C19/26; F16C33/6659; F16C2360/00; F16C2360/23
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
129 words
A bearing comprising: an inner annular race having an outer peripheral bEaring surface thereon; an outer annular race having an inner peripheral bearing surface and an inner peripheral annular channel thereon; at least one roller bearing member rotatably disposed between the inner race and the outer race whereby a tapered surface on said roller bearing member is aligned with said inner peripheral annular channel to provide communication between said inner peripheral annular channel and a space formed between said inner peripheral bearing surface and said tapered surface on said roller bearing member; and means in communication with said inner peripheral annular channel for draining lubricant from said bearing, thereby preventing debris or particular matter from collecting and causing scoring or denting of the roller bearing member or the races.
Claim 2
Dependent Claim
129 words
A bearing comprising: an inner annular race having an outer peripheral bEaring surface thereon; an outer annular race having an inner peripheral bearing surface and an inner peripheral annular channel thereon; at least one roller bearing member rotatably disposed between the inner race and the outer race whereby a tapered surface on said roller bearing member is aligned with said inner peripheral annular channel to provide communication between said inner peripheral annular channel and a space formed between said inner peripheral bearing surface and said tapered surface on said roller bearing member; and means in communication with said inner peripheral annular channel for draining lubricant from said bearing, thereby preventing debris or particular matter from collecting and causing scoring or denting of the roller bearing member or the races.
Claim 3
Dependent Claim
27 words
The device of claim 1 wherein said draining means comprises at least one radial bore in communication with said inner peripheral annular channel of said outer race.
Claim 4
Dependent Claim
20 words
The device of claim 1 including means for applying lubricant to said outer peripheral bearing surface of the inner race.
Claim 5
Dependent Claim
15 words
The device of claim 3 wherein said means for applying lubricant is a jet nozzle.
Claim 6
Dependent Claim
27 words
The device of claim 2 wherein a second annular channel in communication with said radial bore is disposed radially outwardly from said at least one annular channel.
Claim 7
Dependent Claim
15 words
The device of claim 2 including a plurality of radial bores in the outer race.
Claim 8
Dependent Claim
17 words
The device of claim 2 wherein said outer race has a radially inwardly extending annular flange thereon.
Claim 9
Dependent Claim
24 words
The device of claim 7 wherein said annular channel is disposed in said outer race between said inner peripheral bearing surface and said flange.
Claim 10
Dependent Claim
15 words
The device in claim 2 wherein a plurality of channels communicate with said radial bore.
Claim 11
Dependent Claim
15 words
The device of claim 9 wherein a plurality of radial bores communicate with said channels.
Claim 12
Dependent Claim
15 words
The device of claim 1 wherein lubricant from said draining means communicates with a sump.
Claim 13
Dependent Claim
15 words
The device of claim 11 wherein the sump is in communication with a supply tank.
Claim 14
Dependent Claim
28 words
The bearing of claim 1 further comprising: a second tapered surface on said roller bearing member; and a second inner peripheral annual channel in said outer annular race.
Claim 15
Dependent Claim
24 words
The bearing of claim 13 wherein said tapered surfaces and inner peripheral annular channels are positioned at each end of said roller bearing member.
References Cited (Backward Citations)
US2280659A
Cited
DE1163612B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |