US3912344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thrust bearing assembly
Assignee: Kingsbury Inc
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Filing: 1974-02-19
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Granted: 1975-10-14
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Expires: 1994-02-19
Abstract
Abstract A thrust shoe bearing construction wherein each shoe may be offset for both left-hand and right-hand rotation. Each shoe is capable of rocking about a support to thereby form a wedge-shaped lubricant film. The thrust shoes are moved clockwise or counterclockwise relative to their supports to accomodate right or left rotation.
Inventors
- 👤 James E Mccafferty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:46
CPC Classifications
F; F16; F16C; F16C17/00; F16C17/04; F16C17/06
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
138 words
A thrust bearing assembly including a base ring and a plurality of thrust shoes angularly positioned about and supported by the base ring, means to preclude angular displacemenT of the thrust shoes relative to the base ring for a given angular setting of the thrust shoes relative to the ring, the angular setting corresponding to a direction of rotation, an axially extending abutment carried by the base ring and upon which the thrust shoes rest in an offset manner, the improvement which comprises, for each thrust shoe, a. means for adjustably positioning the thrust shoe about the base ring, so that the thrust shoe can be adjusted clockwise and counter clockwise relative to its supporting abutment, b. whereby the same thrust shoe may be adjusted for offset support for both right and left rotation of a rotatable member.
Claim 2
Dependent Claim
138 words
A thrust bearing assembly including a base ring and a plurality of thrust shoes angularly positioned about and supported by the base ring, means to preclude angular displacemenT of the thrust shoes relative to the base ring for a given angular setting of the thrust shoes relative to the ring, the angular setting corresponding to a direction of rotation, an axially extending abutment carried by the base ring and upon which the thrust shoes rest in an offset manner, the improvement which comprises, for each thrust shoe, a. means for adjustably positioning the thrust shoe about the base ring, so that the thrust shoe can be adjusted clockwise and counter clockwise relative to its supporting abutment, b. whereby the same thrust shoe may be adjusted for offset support for both right and left rotation of a rotatable member.
Claim 3
Dependent Claim
21 words
The thrust bearing assembly of claim 1 wherein each thrust shoe is arcuate in form at least on its bearing surface.
Claim 4
Dependent Claim
19 words
The thrust bearing assembly of claim 2 wherein each thrust shoe is substantially planar on its abutment contacting surface.
Claim 5
Dependent Claim
64 words
The thrust bearing of claim 1 wherein said (a) means for angularly positioning each thrust shoe comprises dowel pin members extending into both the thrust shoe and the base ring, there being a second set of dowel pin receiving openings carried by either the base ring or the thrust shoe, said second set of openings being angularly located with respect to the dowel pins.
Claim 6
Dependent Claim
42 words
The thrust bearing of claim 1 wherein said (a) means for angularly positioning each thrust shoe comprises abutments carried by the base ring at the angular ends of each thrust shoe, said abutments being angularly adjustable with respect to the base ring.
Claim 7
Dependent Claim
18 words
The thrust bearing of claim 4 wherein said second set of openings is carried by said thrust shoe.
Claim 8
Dependent Claim
18 words
The thrust bearing of claim 4 wherein said second set of openings is carried by said base ring.
Claim 9
Dependent Claim
22 words
The thrust bearing of claim 4 wherein said second set of openings are recesses in the outer periphery of said base ring.
Claim 10
Dependent Claim
26 words
The thrust bearing assembly of claim 1 wherein said axially extending abutment includes a partspherical element having a flattened surface adapted to contact a thrust shoe.
Claim 11
Dependent Claim
26 words
The thrust bearing assembly of claim 9 wherein said part-spherical abutment carries a threaded fastener, said abutment resting in a recess in a leveling plate assembly.
Claim 12
Dependent Claim
35 words
The thrust bearing assembly of claim 9 wherein said part-spherical element is secured to a base member by means of a fastener extending through an aperture in the former, said aperture fastened to the latter.
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) | 1978-10-13 | 1979-04-14 | 1979-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-13 | 1983-04-14 | 1983-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-13 | 1987-04-14 | 1987-10-14 | $7700.00 | Window Closed / Lapsed |