US4222617A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self loading cylindrical autolubricated gas bearing
Assignee: Boeing North American Inc
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Filing: 1964-09-03
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Granted: 1980-09-16
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Expires: 1984-09-03
Abstract
Abstract A journal-type bearing the shaft member of which is divided into two or more cylindrical sections having their axes offset from each other and from the rotational axis thereof. As the shaft member rotates, viscous forces act upon said cylindrical sections to create a self-induced stabilizing load upon the bearing.
Inventors
- 👤 Edgar B. Romberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:21
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/02; G01C19/04; G01C19/16; G01C19/20; F; F16; F16C; F16C17/00; F16C17/02; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; F16C33/1005; F16C33/101; F16C2370/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
159 words
In a self-loading hydrodynamic bearing, a cylindrical shaft rotatable about a first axis comprised of at least three right circular cylindrical members each having a diameter slightly less than the diameter of said shaft, a second and third axis parallel to said first axis and positioned an equal distance on opposite sides of said first axis, two of said cylindrical members being symmetrically mounted about said second axis, and said third cylindrical member symmetrically mounted about said third axis, a bearing member having a diameter slightly greater than the diameter of said cylindrical shaft enveloping said shaft, a gas located between said shaft and said bearing, rotation of said shaft causing the generation of high pressures in the converging areas between said shaft and said bearing, the resulting forces of said high pressure areas acting upon said shaft to stabilize said shaft in said bearing to substantially limit the movement of the axis of said shaft during rotation thereof.
Claim 2
Dependent Claim
159 words
In a self-loading hydrodynamic bearing, a cylindrical shaft rotatable about a first axis comprised of at least three right circular cylindrical members each having a diameter slightly less than the diameter of said shaft, a second and third axis parallel to said first axis and positioned an equal distance on opposite sides of said first axis, two of said cylindrical members being symmetrically mounted about said second axis, and said third cylindrical member symmetrically mounted about said third axis, a bearing member having a diameter slightly greater than the diameter of said cylindrical shaft enveloping said shaft, a gas located between said shaft and said bearing, rotation of said shaft causing the generation of high pressures in the converging areas between said shaft and said bearing, the resulting forces of said high pressure areas acting upon said shaft to stabilize said shaft in said bearing to substantially limit the movement of the axis of said shaft during rotation thereof.
Claim 3
Dependent Claim
25 words
The combination according to claim 1 in which two of said cylindrical members have a length equal to one-half the length of said third member.
Claim 4
Dependent Claim
56 words
In a hydrodynamic gas bearing, a shaft member, a bearing member, said shaft member comprising a plurality of cylindrical bearing surfaces, the axis of rotation of said shaft being displaced from the axis of said cylindrical bearing surfaces said surfaces being relatively disposed so as to carry loads in different directions with respect to each other.
Claim 5
Dependent Claim
56 words
In a hydrodynamic gas bearing, a shaft member, a bearing member, said shaft member comprising a plurality of cylindrical bearing surfaces, the axis of rotation of said shaft being displaced from the axis of said cylindrical bearing surfaces said surfaces being relatively disposed so as to carry loads in different directions with respect to each other.
Claim 6
Dependent Claim
62 words
In a hydrodynamic gas bearing, a shaft member, a bearing member, said shaft member having a plurality of curved bearing surfaces each having a center of curvature, the axis of rotation of said shaft being displaced from the center of curvature of said surfaces, and said curved bearing surfaces being disposed to carry loads in different directions with respect to each other.
Claim 7
Dependent Claim
62 words
In a hydrodynamic gas bearing, a shaft member, a bearing member, said shaft member having a plurality of curved bearing surfaces each having a center of curvature, the axis of rotation of said shaft being displaced from the center of curvature of said surfaces, and said curved bearing surfaces being disposed to carry loads in different directions with respect to each other.
Claim 8
Dependent Claim
34 words
In an hydrodynamic gas bearing, a shaft member, a bearing member, said shaft member comprising a plurality of cylindrical bearing surfaces at least two of which are eccentrically mounted with respect to each other.
Claim 9
Dependent Claim
34 words
In an hydrodynamic gas bearing, a shaft member, a bearing member, said shaft member comprising a plurality of cylindrical bearing surfaces at least two of which are eccentrically mounted with respect to each other.
Claim 10
Dependent Claim
62 words
In an hydrodynamic gas bearing adapted for use in an high speed precision gyroscope, a shaft member, a bearing member, said shaft member comprising a plurality of cylindrical bearing surfaces at least two of which are eccentrically mounted with respect to each other and the axis of rotation of said shaft member being displaced from the axes of said cylindrical bearing surfaces.
Claim 11
Dependent Claim
62 words
In an hydrodynamic gas bearing adapted for use in an high speed precision gyroscope, a shaft member, a bearing member, said shaft member comprising a plurality of cylindrical bearing surfaces at least two of which are eccentrically mounted with respect to each other and the axis of rotation of said shaft member being displaced from the axes of said cylindrical bearing surfaces.
Claim 12
Dependent Claim
95 words
An hydrodynamic gas bearing comprising, a shaft member having a plurality of bearing surfaces defined by cylindrical sections the axes of which are eccentrically located with respect to the rotational axis of said shaft member, a bearing member having an internal, single-axis, cylindrical surface for receiving said shaft member, a gas within said bearing member providing lubrication between such member and said bearing surfaces of said shaft member during rotation thereof, said gas cooperating with said bearing member and said bearing surfaces to create counterbalancing forces upon said shaft member thereby stabilizing said shaft member.
Claim 13
Dependent Claim
95 words
An hydrodynamic gas bearing comprising, a shaft member having a plurality of bearing surfaces defined by cylindrical sections the axes of which are eccentrically located with respect to the rotational axis of said shaft member, a bearing member having an internal, single-axis, cylindrical surface for receiving said shaft member, a gas within said bearing member providing lubrication between such member and said bearing surfaces of said shaft member during rotation thereof, said gas cooperating with said bearing member and said bearing surfaces to create counterbalancing forces upon said shaft member thereby stabilizing said shaft member.
Claim 14
Dependent Claim
109 words
In combination, a high speed, precision gyroscope having a shaft, an autolubricated gas bearing attached to said shaft and comprising, a shaft member having a plurality of bearing surfaces defined by cylindrical sections the axes of which are eccentrically located with respect to the rotational axis of said shaft, a bearing member having an internal, single-axis, cylindrical surface for receiving said shaft member, a gas within said bearing member providing lubrication between such member and said bearing surfaces of said shaft member during rotation thereof, said gas cooperating with said bearing member and said bearing surfaces to create counter-balancing forces upon said shaft member thereby stabilizing said shaft member.
Claim 15
Dependent Claim
109 words
In combination, a high speed, precision gyroscope having a shaft, an autolubricated gas bearing attached to said shaft and comprising, a shaft member having a plurality of bearing surfaces defined by cylindrical sections the axes of which are eccentrically located with respect to the rotational axis of said shaft, a bearing member having an internal, single-axis, cylindrical surface for receiving said shaft member, a gas within said bearing member providing lubrication between such member and said bearing surfaces of said shaft member during rotation thereof, said gas cooperating with said bearing member and said bearing surfaces to create counter-balancing forces upon said shaft member thereby stabilizing said shaft member.
References Cited (Backward Citations)
US3132906A
Cited
US3101224A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-16 | 1984-03-17 | 1984-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-16 | 1988-03-17 | 1988-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-16 | 1992-03-17 | 1992-09-16 | $7700.00 | Window Closed / Lapsed |