Patent US4337408A successfully refreshed from Google Patents.
US4337408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasma jet ignition plug
Assignee: Nissan Motor Co Ltd
•
Filing: 1980-04-18
•
Granted: 1982-06-29
•
Expires: 2000-04-18
Abstract
Abstract A plasma jet ignition plug wherein a film of semiconductor or a semiconductor oxide defines together with a first rod-shaped electrode and a second electrode a plasma cavity.
Inventors
- 👤 Masazumi Sone
- 👤 Yukitsugu Hirota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:28
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/50; H01T13/54
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
85 words
A plasma jet ignition plug comprising: a first electrode; an insulating body surrounding and supporting said first electrode and forming a plasma cavity surrounding one end of said first electrode; a second electrode positioned in engagement with a portion of said insulating body and having a portion closing said plasma cavity, said portion having an orifice therethrough and opening into said plasma cavity; and a film on said insulating body defining said plasma cavity, said film being made of a semiconductor including a silicon compound.
Claim 2
Dependent Claim
85 words
A plasma jet ignition plug comprising: a first electrode; an insulating body surrounding and supporting said first electrode and forming a plasma cavity surrounding one end of said first electrode; a second electrode positioned in engagement with a portion of said insulating body and having a portion closing said plasma cavity, said portion having an orifice therethrough and opening into said plasma cavity; and a film on said insulating body defining said plasma cavity, said film being made of a semiconductor including a silicon compound.
Claim 3
Dependent Claim
21 words
A plasma jet ignition plug as claimed in claim 1, wherein said silicon compound is one of SiO 2 and SiC.
Claim 4
Dependent Claim
25 words
A plasma jet ignition plug as claimed in claim 1 or 2, wherein said one end of said first electrode projects into said plasma cavity.
Claim 5
Dependent Claim
30 words
A plasma jet ignition plug as claimed in claim 1 or 2, wherein said one end of said first electrode is substantially flush with the adjacent surface of said film.
Claim 6
Dependent Claim
96 words
A plasma jet ignition plug comprising: a first electrode; an insulating body surrounding and supporting said first electrode and forming a plasma cavity surrounding one end of said first electrode; a second electrode positioned in engagement with a portion of said insulating body and having a portion closing said plasma cavity, said portion having an orifice formed therethrough and opening to said plasma cavity; a film on said insulating body defining said plasma cavity, said film being made of a semiconductor including a silicon compound and in electrical contact with both said first and second electrodes.
Claim 7
Dependent Claim
96 words
A plasma jet ignition plug comprising: a first electrode; an insulating body surrounding and supporting said first electrode and forming a plasma cavity surrounding one end of said first electrode; a second electrode positioned in engagement with a portion of said insulating body and having a portion closing said plasma cavity, said portion having an orifice formed therethrough and opening to said plasma cavity; a film on said insulating body defining said plasma cavity, said film being made of a semiconductor including a silicon compound and in electrical contact with both said first and second electrodes.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-28 | 1985-12-28 | 1986-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-28 | 1989-12-28 | 1990-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-28 | 1993-12-28 | 1994-06-29 | $7700.00 | Window Closed / Lapsed |