Patent US3142888A successfully refreshed from Google Patents.
US3142888A
Expired / Lapsed
US
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Method of making a flexural pivot device
Assignee: Bendix Corp
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Filing: 1962-08-07
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Granted: 1964-08-04
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Expires: 1982-08-07
Abstract
No abstract record available.
Inventors
- 👤 Troeger Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:07
CPC Classifications
F; F16; F16C; F16C11/00; F16C11/04; F16C11/12; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49609; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49789; Y10T29/49796; Y10T403/00; Y10T403/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
THE METHOD OF MAKING A FLEXURAL PIVOT DEVICE COMPRISED OF FORMING AN INNER TUBULAR SLEEVE HAVING TWO AXIALLY-EXTENDING DIAMETRICALLY-LOCATED OPENINGS AND TWO AXIALLY-EXTENDING RIBS BETWEEN SAID OPENINGS, REDUCING THE OUTER DIAMETER OF DIAGONALLY-OPPOSITE SURFACES OF SAID RIBS TO PROVIDE OVERHANGING ARCUATE REDUCED-DIAMETER SURFACES AND DIAMETRICAL THEREOF ARCUATE MOUNTING SURFACES, SLOTTING SAID RIBS AT EACH END TO PROVIDE A FIRST PAIR OF OPPOSED RADIAL SLOTS IN A FIRST AXIAL PLANE AND AXIALLYSPACED FROM SAID FIRST PAIR OF SLOTS A SECOND PAIR OF OPPOSED RADIAL SLOTS WHICH ARE IN A SECOND AXIAL PLANE PERPENDICUALR TO SAID FIRST AXIAL PLANE, POSITIONING A FLAT SPRING IN EACH PAIR OF SAID OPPOSED SLOTS WITHIN THE PERIPHERY OF SAID INNER SLEEVE TO PROVIDE CROSSED SPRINGS, POSITIONING A TUBULAR OUTER SLEEVE OF SUCH LENGTH OF SAID MOUNTING SURFACES SO THAT SAID OPENINGS ARE COVERED AND OVERHANGING RECESSES ARE FORMED AT THE REDUCED-DIAMETER SURFACES OF
Claim 2
Independent Claim
147 words
THE METHOD OF MAKING A FLEXURAL PIVOT DEVICE COMPRISED OF FORMING AN INNER TUBULAR SLEEVE HAVING TWO AXIALLY-EXTENDING DIAMETRICALLY-LOCATED OPENINGS AND TWO AXIALLY-EXTENDING RIBS BETWEEN SAID OPENINGS, REDUCING THE OUTER DIAMETER OF DIAGONALLY-OPPOSITE SURFACES OF SAID RIBS TO PROVIDE OVERHANGING ARCUATE REDUCED-DIAMETER SURFACES AND DIAMETRICAL THEREOF ARCUATE MOUNTING SURFACES, SLOTTING SAID RIBS AT EACH END TO PROVIDE A FIRST PAIR OF OPPOSED RADIAL SLOTS IN A FIRST AXIAL PLANE AND AXIALLYSPACED FROM SAID FIRST PAIR OF SLOTS A SECOND PAIR OF OPPOSED RADIAL SLOTS WHICH ARE IN A SECOND AXIAL PLANE PERPENDICUALR TO SAID FIRST AXIAL PLANE, POSITIONING A FLAT SPRING IN EACH PAIR OF SAID OPPOSED SLOTS WITHIN THE PERIPHERY OF SAID INNER SLEEVE TO PROVIDE CROSSED SPRINGS, POSITIONING A TUBULAR OUTER SLEEVE OF SUCH LENGTH OF SAID MOUNTING SURFACES SO THAT SAID OPENINGS ARE COVERED AND OVERHANGING RECESSES ARE FORMED AT THE REDUCED-DIAMETER SURFACES OF
References Cited (Backward Citations)
US2480114A
Cited
US2931092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |