Patent US4357798A successfully refreshed from Google Patents.
Patent US3223076A successfully refreshed from Google Patents.
US3223076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic noncompression starting device
Assignee: TADAO YAMAOKA
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Filing: 1963-08-12
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Granted: 1965-12-14
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Expires: 1983-08-12
Abstract
No abstract record available.
Inventors
- 👤 Isoda Haruo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:02
CPC Classifications
F; F01; F01L; F01L13/00; F01L13/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
259 words
IN A INTERNAL COMBUSTION ENGINE, SAID ENGINE INCLUDING A CYLINDER, AN EXHAUST PORT COMMUNICATING WITH SAID CYLINDER, AN EXHAUST VALVE ADAPTED TO OPEN AND CLOSE SAID PORT, A ROCKER ARM ADAPTED TO ACTUATE SAID VALVE, A PUSH ROD ENGAGING SAID ROCKER ARM, A BONNET SURROUNDING SAID ROCKER ARM, A SLIDABLE ROCKER ARM PUSHER ROD ADJACENT SAID ROCKER ARM, BIAS MEANS NORMALLY BIASING SAID PUSHER ROD OUT OF ENGAGEMENT WITH SAID ROCKER ARM, SAID ROCKER ARM PUSHER ROD BEING PROVIDED WITH A LONGITUDINAL SLOT HAVING AN ABUTMENT AT ONE END THEREOF, A ROTATABLE NONCOMPRESSION SHAFT HAVING A HALF-ROUND END POSITIONED IN SAID SLOT, SAID HALF-ROUND END CONTACTING SAID ABUTMENT, SAID ROCKER ARM PUSHER ROD CAUSIN SAID VALVE TO OPEN WHEN IN ENGAGEMENT WITH SAID ROCKER ARM, A LINKAGE COUPLED TO SAID ROCKER ARM PUSHER ROD, SAID NONCOMPRESSION SHAFT COUPLED TO SAID LINKAGE, ROTATION OF SAID NONCOMPRESSION SHAFT IN ONE DIRECTION URGING SAID ROCKER ARM PUSHER ROD AGAINST ITS SAID BIAS MEANS AND INTO ENGAGEMENT WITH SAID ROCKER ARM, ROTATION OF SAID SHAFT IN THE OTHER DIRECTION ALLOWING SAID BIAS MEANS TO ACT ON SAID ROCKER ARM PUSHER ROD TO MOV IT OUT OF ENGAGEMENT WITH SAID ROCKER ARM, MEANS COUPLED TO SAID LINKAGE FOR ACTING AGAINST THE BIAS MEANS THEREBY CAUSING SAID VALVE TO OPEN BEFORE AND DURING ENGINE START-UP, SAID MEANS ACTUATING THE LINKAGE AFTER ENGINE START-UP TO ALLOW THE BIAS MEANS TO MOVE SAID PUSHER ROD AWAY FROM CONTACT WITH THE ROCKER ARM THEREBY ALLOWING SAID VALVE TO CLOSE, SAID MEANS ACTING AS A FUNCTION OF ENGINE SPEED.
Claim 2
Dependent Claim
259 words
IN A INTERNAL COMBUSTION ENGINE, SAID ENGINE INCLUDING A CYLINDER, AN EXHAUST PORT COMMUNICATING WITH SAID CYLINDER, AN EXHAUST VALVE ADAPTED TO OPEN AND CLOSE SAID PORT, A ROCKER ARM ADAPTED TO ACTUATE SAID VALVE, A PUSH ROD ENGAGING SAID ROCKER ARM, A BONNET SURROUNDING SAID ROCKER ARM, A SLIDABLE ROCKER ARM PUSHER ROD ADJACENT SAID ROCKER ARM, BIAS MEANS NORMALLY BIASING SAID PUSHER ROD OUT OF ENGAGEMENT WITH SAID ROCKER ARM, SAID ROCKER ARM PUSHER ROD BEING PROVIDED WITH A LONGITUDINAL SLOT HAVING AN ABUTMENT AT ONE END THEREOF, A ROTATABLE NONCOMPRESSION SHAFT HAVING A HALF-ROUND END POSITIONED IN SAID SLOT, SAID HALF-ROUND END CONTACTING SAID ABUTMENT, SAID ROCKER ARM PUSHER ROD CAUSIN SAID VALVE TO OPEN WHEN IN ENGAGEMENT WITH SAID ROCKER ARM, A LINKAGE COUPLED TO SAID ROCKER ARM PUSHER ROD, SAID NONCOMPRESSION SHAFT COUPLED TO SAID LINKAGE, ROTATION OF SAID NONCOMPRESSION SHAFT IN ONE DIRECTION URGING SAID ROCKER ARM PUSHER ROD AGAINST ITS SAID BIAS MEANS AND INTO ENGAGEMENT WITH SAID ROCKER ARM, ROTATION OF SAID SHAFT IN THE OTHER DIRECTION ALLOWING SAID BIAS MEANS TO ACT ON SAID ROCKER ARM PUSHER ROD TO MOV IT OUT OF ENGAGEMENT WITH SAID ROCKER ARM, MEANS COUPLED TO SAID LINKAGE FOR ACTING AGAINST THE BIAS MEANS THEREBY CAUSING SAID VALVE TO OPEN BEFORE AND DURING ENGINE START-UP, SAID MEANS ACTUATING THE LINKAGE AFTER ENGINE START-UP TO ALLOW THE BIAS MEANS TO MOVE SAID PUSHER ROD AWAY FROM CONTACT WITH THE ROCKER ARM THEREBY ALLOWING SAID VALVE TO CLOSE, SAID MEANS ACTING AS A FUNCTION OF ENGINE SPEED.
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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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |