Patent US3766339A successfully refreshed from Google Patents.
US3766339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit interruptor for ignition system with improved rotary contact
Assignee: Individual
•
Filing: 1972-05-08
•
Granted: 1973-10-16
•
Expires: 1992-05-08
Abstract
Abstract A segmented cylindrical conductive member, comprising an integrated, concentric, part of the distributor shaft, positioned intermediate the ends of the shaft and having wiping contact elements, one of which is connected to the primary power source and the other to ground.
Inventors
- 👤 E Melidosian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:59
CPC Classifications
F; F02; F02P; F02P7/00; F02P7/06; F02P7/063; F02P7/0632; Y; Y10; Y10S; Y10S200/00; Y10S200/07
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
113 words
The combination with an internal combustion engine ignition system, including a coil and a distributor, having a drive shaft, cap, rotor, and condensor, of a segmented, conductive member concentrically carried on said shaft, said conductive member having a plurality of slots in its periphery, with a nonconductive element in each slot, means to ground said conductive member, including a spring loaded comparatively wide wiping brush which is always in contact with said conductive member, and a spring loaded, comparatively thin, contact brush electrically connected to the primary power circuit of said system, said condensor, and said coil, and arranged to interrupt said primary circuit each time it contacts one of said nonconductive elements.
Claim 2
Dependent Claim
113 words
The combination with an internal combustion engine ignition system, including a coil and a distributor, having a drive shaft, cap, rotor, and condensor, of a segmented, conductive member concentrically carried on said shaft, said conductive member having a plurality of slots in its periphery, with a nonconductive element in each slot, means to ground said conductive member, including a spring loaded comparatively wide wiping brush which is always in contact with said conductive member, and a spring loaded, comparatively thin, contact brush electrically connected to the primary power circuit of said system, said condensor, and said coil, and arranged to interrupt said primary circuit each time it contacts one of said nonconductive elements.
Claim 3
Dependent Claim
18 words
The structure of claim 1, in which said conductive member is an integrated portion of said drive shaft.
Claim 4
Dependent Claim
42 words
The structure of claim 1, in which said first named brush is arranged to simultaneously contact at all times at least two of the segments of said conductive member, and said second named brush is arranged to intermittently contact the said segments.
Claim 5
Dependent Claim
29 words
The structure of claim 1, in which each segment of said conductive member contains the number of degrees of a circle, which represents the dwell angle of the system.
Claim 6
Dependent Claim
28 words
The structure of claim 1, in which said second named brush makes a line contact with the said nonconductive elements and the said segments of said conductive member.
Claim 7
Dependent Claim
29 words
The structure of claim 1, in which the segments of said conductive member are spaced by members comprising alternate elements separated by laminated layers of conductive and nonconductive materials.
Claim 8
Dependent Claim
16 words
The structure of claim 1, in which said integrated rotor is grounded directly through said shaft.
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |