US3112740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve rocker arm with cylindrical support
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1961-09-28
•
Granted: 1963-12-03
•
Expires: 1981-09-28
Abstract
No abstract record available.
Inventors
- 👤 Sampietro Achilles Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:23
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/12; F01L1/18; F01L1/181; F01L1/182; F01L1/183; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
IN A VALVE OPERATING MECHANISM, A SHAPED ONE-PIECE UNITARY PIVOTAL ROCKER ARM HAVING A DOWNWARDLY FACING SURFACE AT ONE END ACTING ON A VALVE AND A DOWNWARDLY FACING SURFACE AT THE OTHER END FOR BEING ACTED ON BY A ROCKER ARM OPERATOR, UPWARDLY EXTENDING CONTINUOUS SIDE WALLS EXTENDING LONGITUDINALLY ALONG THE SIDES OF THE ARM, A LATERALLY EXTENDING UPWARDLY FACING CONCAVE FRAGMENTARY CYLINDRICAL BEARING SURFACE BETWEEN SAID WALLS, A BEARING HAVING A DOWNWARDLY FACING CYLINDRICALLY SHAPED CONVEX SURFACE IN ENGAGEMENT WITH SAID ARM BEARING SURFACE, AND MEANS FOR SUPPORTING SAID BEARING AND ADJUSTING ITS VERTICAL POSITION AND HOLDING IT IN A FIXED PRE-DETERMINED ANGULAR POSITION PREVENTING ROTATION ON A VERTICAL AXIS TO MAINTAIN THE ROCKER ARM IN ITS PIVOTAL PLANE OF ACTION.
Claim 2
Dependent Claim
122 words
IN A VALVE OPERATING MECHANISM, A SHAPED ONE-PIECE UNITARY PIVOTAL ROCKER ARM HAVING A DOWNWARDLY FACING SURFACE AT ONE END ACTING ON A VALVE AND A DOWNWARDLY FACING SURFACE AT THE OTHER END FOR BEING ACTED ON BY A ROCKER ARM OPERATOR, UPWARDLY EXTENDING CONTINUOUS SIDE WALLS EXTENDING LONGITUDINALLY ALONG THE SIDES OF THE ARM, A LATERALLY EXTENDING UPWARDLY FACING CONCAVE FRAGMENTARY CYLINDRICAL BEARING SURFACE BETWEEN SAID WALLS, A BEARING HAVING A DOWNWARDLY FACING CYLINDRICALLY SHAPED CONVEX SURFACE IN ENGAGEMENT WITH SAID ARM BEARING SURFACE, AND MEANS FOR SUPPORTING SAID BEARING AND ADJUSTING ITS VERTICAL POSITION AND HOLDING IT IN A FIXED PRE-DETERMINED ANGULAR POSITION PREVENTING ROTATION ON A VERTICAL AXIS TO MAINTAIN THE ROCKER ARM IN ITS PIVOTAL PLANE OF ACTION.
References Cited (Backward Citations)
US1188405A
Cited
US1526678A
Cited
US1699657A
Cited
US1699658A
Cited
US2902014A
Cited
GB866872A
Cited
US2982273A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |