Patent US3589779A successfully refreshed from Google Patents.
US3589779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed loader slot bearing
Assignee: Rexnord Inc
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Filing: 1969-11-24
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Granted: 1971-06-29
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Expires: 1989-11-24
Abstract
Abstract The loader slots machined in the outer race of a spherical bearing to facilitate insertion of the bearing inner race are sealed after assembly of the bearing by filling them with a metallic material. The loader slots are provided with recessed portions which are filled by the metallic sealing material in a manner such that the hardened material is keyed against displacement by radial or thrust forces or bearing rotation.
Inventors
- 👤 Ned L Sokol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:59
CPC Classifications
F; F16; F16C; F16C23/00; F16C23/02; F16C23/04; F16C23/043; F16C23/045
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
79 words
In a bearing assembly comprising inner and outer members having corresponding spherical bearing surfaces between circular parallel ends, the outer member having a pair of loader slots each defined by spaced parallel end faces and an intermediate cylindrical surface, the improvement comprising a hardened material filling said loader slots of the assembled bearing, and recessed portions in the surfaces of said loader slots adapted to receive a portion of said hardened material, whereby said material is keyed against displacement.
Claim 2
Dependent Claim
79 words
In a bearing assembly comprising inner and outer members having corresponding spherical bearing surfaces between circular parallel ends, the outer member having a pair of loader slots each defined by spaced parallel end faces and an intermediate cylindrical surface, the improvement comprising a hardened material filling said loader slots of the assembled bearing, and recessed portions in the surfaces of said loader slots adapted to receive a portion of said hardened material, whereby said material is keyed against displacement.
Claim 3
Dependent Claim
107 words
In a bearing comprising inner and outer members having corresponding spherical bearing surfaces between circular parallel ends, the outer member having a pair of loader slots each defined by spaced parallel end faces and an intermediate cylindrical surface extending from one end of the outer member inwardly to the median plane thereof, the improvement comprising grooved portions in the surfaces of said loader slots, said portions having mutually perpendicular sides and ends, and a hardened material filling said loader slots and said grooved portions, whereby said loader slots are sealed and said hardened material is keyed by the sides and ends of said grooved portions against displacement.
Claim 4
Dependent Claim
107 words
In a bearing comprising inner and outer members having corresponding spherical bearing surfaces between circular parallel ends, the outer member having a pair of loader slots each defined by spaced parallel end faces and an intermediate cylindrical surface extending from one end of the outer member inwardly to the median plane thereof, the improvement comprising grooved portions in the surfaces of said loader slots, said portions having mutually perpendicular sides and ends, and a hardened material filling said loader slots and said grooved portions, whereby said loader slots are sealed and said hardened material is keyed by the sides and ends of said grooved portions against displacement.
Claim 5
Dependent Claim
22 words
A bearing as defined in claim 2 wherein said grooved portions lie substantially within the intermediate cylindrical surfaces of said loader slots.
Claim 6
Dependent Claim
20 words
A bearing as defined in claim 3 wherein said grooved portions comprise a continuous annular groove in each loader slot.
Claim 7
Dependent Claim
15 words
A bearing as defined in claim 4 wherein said annular groove includes deepened end portions.
Claim 8
Dependent Claim
17 words
A bearing as deFined in claim 2 wherein said hardened material comprises a thermosetting metal base material.
Claim 9
Dependent Claim
104 words
In a bearing assembly comprising inner and outer members having corresponding spherical bearing surfaces between circular parallel ends, the outer member having a pair of loader slots each defined by spaced parallel end faces and an intermediate cylindrical surface extending from one end of the outer member inwardly to the median plane thereof, the improvement comprising an annular groove in the cylindrical surface of each loader slot, said groove having deepened end portions terminating within the loader slot, and a hardened material filling said loader slots and said annular grooves, whereby said loader slots are sealed and said hardened material is keyed against displacement.
Claim 10
Dependent Claim
104 words
In a bearing assembly comprising inner and outer members having corresponding spherical bearing surfaces between circular parallel ends, the outer member having a pair of loader slots each defined by spaced parallel end faces and an intermediate cylindrical surface extending from one end of the outer member inwardly to the median plane thereof, the improvement comprising an annular groove in the cylindrical surface of each loader slot, said groove having deepened end portions terminating within the loader slot, and a hardened material filling said loader slots and said annular grooves, whereby said loader slots are sealed and said hardened material is keyed against displacement.
Claim 11
Dependent Claim
18 words
A bearing assembly as described in claim 7 wherein said hardened material comprises a thermosetting metal base material.
Claim 12
Dependent Claim
34 words
A bearing assembly as defined in claim 7 wherein said annular groove interconnects the parallel end faces of said loader slot and lies intermediate the end and the median plane of the outer member.
References Cited (Backward Citations)
US2047885A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |