Patent US3157444A successfully refreshed from Google Patents.
US3157444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slotted bearing sleeve with lubricant retaining means
Assignee: Rockwell-Standard Corp
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Filing: 1962-10-12
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Granted: 1964-11-17
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Expires: 1982-10-12
Abstract
No abstract record available.
Inventors
- 👤 Walther F Scheel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:52
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/046; F16C33/06; F16C33/10; F16C33/102; F16C17/00; F16C17/02; F16C2208/00; F16C2208/20; F16C2208/30; F16C2208/32; F16C2208/60; F16C2220/00; F16C2220/02; F16C2220/04; F16C2300/00; F16C2300/20; F16C2300/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A THIN WALLED SPLIT BEARING SLEEVE OF TOUGH WEAR RESISTANT NON-METALLIC PLASTIC HAVING SMOOTH SLIPPERY OUTER AND INNER BEARING SURFACES AND HAVING A NON-LINEAR SLOT EXTENDING AXIALLY BETWEEN AND OPENING TO THE OPPOSITE SIDE EDGES OF THE SLEEVE, SAID SLOT COMPRISING AN INTERMEDIATE RESERVOIR SECTION IN WHICH THE SLOT EDGES MAY MOVE CIRCUMFERENTIALLY TOWARD OR FROM EACH OTHER DURING CONTRACTION OR EXPANSION OF THE SPLIT SLEEVE, SUBSTANTIALLY CIRCUMFERENTIALLY EXTENDING SLOT SECTIONS HAVING ENDS CONNECTED TO OPPOSITE ENDS OF SAID RESERVOIR SECTION AND IN WHICH THE ADJACENT SLOT EDGES ARE FITTED FOR RELATIVE SLIDING CIRCUMFERENTIALLY OF THE SLEEVE BUT SO CLOSELY AS TO EFFECTIVELY BLOCK AGAINST DISPLACEMENT OF
Claim 2
Dependent Claim
107 words
A THIN WALLED SPLIT BEARING SLEEVE OF TOUGH WEAR RESISTANT NON-METALLIC PLASTIC HAVING SMOOTH SLIPPERY OUTER AND INNER BEARING SURFACES AND HAVING A NON-LINEAR SLOT EXTENDING AXIALLY BETWEEN AND OPENING TO THE OPPOSITE SIDE EDGES OF THE SLEEVE, SAID SLOT COMPRISING AN INTERMEDIATE RESERVOIR SECTION IN WHICH THE SLOT EDGES MAY MOVE CIRCUMFERENTIALLY TOWARD OR FROM EACH OTHER DURING CONTRACTION OR EXPANSION OF THE SPLIT SLEEVE, SUBSTANTIALLY CIRCUMFERENTIALLY EXTENDING SLOT SECTIONS HAVING ENDS CONNECTED TO OPPOSITE ENDS OF SAID RESERVOIR SECTION AND IN WHICH THE ADJACENT SLOT EDGES ARE FITTED FOR RELATIVE SLIDING CIRCUMFERENTIALLY OF THE SLEEVE BUT SO CLOSELY AS TO EFFECTIVELY BLOCK AGAINST DISPLACEMENT OF
References Cited (Backward Citations)
US2851316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |