Patent US3373724A successfully refreshed from Google Patents.
US3373724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injection and ignition device for internal combustion engines
Assignee: Individual
•
Filing: 1965-02-08
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Granted: 1968-03-19
•
Expires: 1985-02-08
Abstract
No abstract record available.
Inventors
- 👤 Papst Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:19
CPC Classifications
F; F02; F02N; F02N19/00; F02N19/02; F02N19/04; F02N19/06; F02N19/08; F02B; F02B23/00; F02M; F02M57/00; F02M57/06; F23; F23Q; F23Q7/00; F23Q7/001; H; H05; H05B; H05B3/00; H05B3/40; H05B3/42; F02B2720/00; F02B2720/25; F02B2720/257; F02B2720/258; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A UNITARY FUEL INJECTION AND IGNITION DEVICE FOR AN INTERNAL COMBUSTION ENGINE COMPRISING, IN COMBINATION, A BODY OF THERMALLY INSULATING MATERIAL AND FORMED WITH A FIRST BORE OF UNIFORM DIAMETER THERETHROUGH FORMING A CHAMBER OF SMALL VOLUME AND COMMUNICATING AT ONE END OF SAID FIRST BORE WITH THE COMBUSTION CHAMBER OF THE ENGINE; A PIN-SHAPED ELECTRICALLY HEATABLE IGNITER ELEMENT LOCATED WITH SMALL CLEARANCE IN A SECOND BORE FORMED IN SAID BODY INCLINED TO AND INTERSECTING SAID FIRST BORE IN SUCH A MANNER THAT THE TIP OF SAID ELEMENT IS LOCATED AT THE INTERSECTION OF SAID SECOND AND SAID FIRST BORE SUBSTANTIALLY ALIGNED WITH THE SURFACE OF THE LATTER; NOZZLE MEANS COMMUNICATING WITH THE OTHER END OF SAID FIRST BORE FOR INTERMITTENTLY INJECTING FUEL THEREINTO; ELONGATED GUIDE MEANS COAXIALLY ARRANGED WITH SAID NOZZLE MEANS PROJECTING THEREFROM PAST SAID TIP TO SAID IGNITER ELEMENT AT LEAST TO SAID ONE END OF SAID BORE FOR GUIDING A JET OF FUEL INJECTED BY THE NOZZLE MEANS CLOSELY SPACED FROM
Claim 2
Dependent Claim
165 words
A UNITARY FUEL INJECTION AND IGNITION DEVICE FOR AN INTERNAL COMBUSTION ENGINE COMPRISING, IN COMBINATION, A BODY OF THERMALLY INSULATING MATERIAL AND FORMED WITH A FIRST BORE OF UNIFORM DIAMETER THERETHROUGH FORMING A CHAMBER OF SMALL VOLUME AND COMMUNICATING AT ONE END OF SAID FIRST BORE WITH THE COMBUSTION CHAMBER OF THE ENGINE; A PIN-SHAPED ELECTRICALLY HEATABLE IGNITER ELEMENT LOCATED WITH SMALL CLEARANCE IN A SECOND BORE FORMED IN SAID BODY INCLINED TO AND INTERSECTING SAID FIRST BORE IN SUCH A MANNER THAT THE TIP OF SAID ELEMENT IS LOCATED AT THE INTERSECTION OF SAID SECOND AND SAID FIRST BORE SUBSTANTIALLY ALIGNED WITH THE SURFACE OF THE LATTER; NOZZLE MEANS COMMUNICATING WITH THE OTHER END OF SAID FIRST BORE FOR INTERMITTENTLY INJECTING FUEL THEREINTO; ELONGATED GUIDE MEANS COAXIALLY ARRANGED WITH SAID NOZZLE MEANS PROJECTING THEREFROM PAST SAID TIP TO SAID IGNITER ELEMENT AT LEAST TO SAID ONE END OF SAID BORE FOR GUIDING A JET OF FUEL INJECTED BY THE NOZZLE MEANS CLOSELY SPACED FROM
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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) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |