Patent US3147963A successfully refreshed from Google Patents.
US3147963A
Expired / Lapsed
US
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Equalizer bushing
Assignee: Dayton Steel Foundry Co
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Filing: 1961-12-12
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Granted: 1964-09-08
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Expires: 1981-12-12
Abstract
No abstract record available.
Inventors
- 👤 Van L Frazier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:02
CPC Classifications
B; B60; B60G; B60G5/00; B60G5/04; B60G5/047; B60G11/00; B60G11/22; B60G11/23; F; F16; F16F; F16F1/00; F16F1/36; F16F1/371; Y; Y10; Y10T; Y10T403/00; Y10T403/45; Y10T403/454
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A RESILIENT BUSHING ADAPTED TO BE INTERPOSED IN BEARING RELATION BETWEEN AN OSCILLATABLE MEMBER AND A RELATIVELY FIXED SUPPORTING MEMBER COMPRISING, AN ELONGATE CYLINDER OF RESILIENT MATERIAL HAVING A COAXIAL BORE THERETHROUGH, A RIGID CYLINDRICAL BAFFLE SLEEVE EMBEDDED IN SAID RESILIENT CYLINDER SO THAT A SUBSTANTIALLY UNIFORM THICKNESS OF RESILIENT MATERIAL IS BONDED TO THE RADIALLY INNER SURFACE OF SAID SLEEVE, THE PORTION OF SAID CYLINDRICALLY-SHAPED RESILIENT MATERIAL RADIALLY OUTWARD OF SAID SLEEVE BEING RELIEVED ADJACENT THE ENDS OF SAID SLEEVE, CIRCUMFERENTIALLY SPACED PASSAGES THROUGH THE MEDIAL PORTION OF SAID SLEEVE AT EACH OF A PLURALITY OF LONGITUDINAL INTERVALS ALONG SAID SLEEVE, SAID PASSAGES HAVING A SUBSTANTIAL SECTION WITH RESPECT TO SAID SLEEVE, AND A RESILIENT MATERIAL BONDED TO THE MEDIAL PORTION OF SAID OUTER SURFACE AND COMMUNICATING WITH THE MATERIAL BONDED TO THE INNER SURFACE THROUGH SAID PASSAGES.
Claim 2
Dependent Claim
139 words
A RESILIENT BUSHING ADAPTED TO BE INTERPOSED IN BEARING RELATION BETWEEN AN OSCILLATABLE MEMBER AND A RELATIVELY FIXED SUPPORTING MEMBER COMPRISING, AN ELONGATE CYLINDER OF RESILIENT MATERIAL HAVING A COAXIAL BORE THERETHROUGH, A RIGID CYLINDRICAL BAFFLE SLEEVE EMBEDDED IN SAID RESILIENT CYLINDER SO THAT A SUBSTANTIALLY UNIFORM THICKNESS OF RESILIENT MATERIAL IS BONDED TO THE RADIALLY INNER SURFACE OF SAID SLEEVE, THE PORTION OF SAID CYLINDRICALLY-SHAPED RESILIENT MATERIAL RADIALLY OUTWARD OF SAID SLEEVE BEING RELIEVED ADJACENT THE ENDS OF SAID SLEEVE, CIRCUMFERENTIALLY SPACED PASSAGES THROUGH THE MEDIAL PORTION OF SAID SLEEVE AT EACH OF A PLURALITY OF LONGITUDINAL INTERVALS ALONG SAID SLEEVE, SAID PASSAGES HAVING A SUBSTANTIAL SECTION WITH RESPECT TO SAID SLEEVE, AND A RESILIENT MATERIAL BONDED TO THE MEDIAL PORTION OF SAID OUTER SURFACE AND COMMUNICATING WITH THE MATERIAL BONDED TO THE INNER SURFACE THROUGH SAID PASSAGES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |