US3715237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable electric current generating device
Assignee: Individual
•
Filing: 1970-03-23
•
Granted: 1973-02-06
•
Expires: 1990-03-23
Abstract
Abstract Inside a sealed case there is a photoelectric core that is sensitive to ultraviolet radiations and that is provided with a multiplicity of openings communicating with its outside. Surrounding the core and filling its openings is a radioactive self-ionized isotopic fluid that produces ultraviolet radiations which activate the core to produce electric current.
Inventors
- 👤 J Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:33
CPC Classifications
G; G21; G21H; G21H1/00; G21H1/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
104 words
An electric current generating device comprising a sealed case, a photoelectric core inside the case sensitive to ultraviolet radiations and having therein a multiplicity of opening communicating with its outside, a radioactive self-ionized isotopic fluid surrounding the core and filling its openings, said fluid producing ultraviolet radiations that activate the core to produce electric current, means electrically connected with said core and extending out of the case for conducting said current away from the photoelectric core, said photoelectric core including a stack of spaced panels, and a plurality of ultraviolet light sensitive cells mounted on both sides of each panel and electrically connected together.
Claim 2
Dependent Claim
104 words
An electric current generating device comprising a sealed case, a photoelectric core inside the case sensitive to ultraviolet radiations and having therein a multiplicity of opening communicating with its outside, a radioactive self-ionized isotopic fluid surrounding the core and filling its openings, said fluid producing ultraviolet radiations that activate the core to produce electric current, means electrically connected with said core and extending out of the case for conducting said current away from the photoelectric core, said photoelectric core including a stack of spaced panels, and a plurality of ultraviolet light sensitive cells mounted on both sides of each panel and electrically connected together.
Claim 3
Dependent Claim
23 words
An electric current generating device according to claim 1, in which said panels are provided with a multiplicity of perforations between said cells.
Claim 4
Dependent Claim
29 words
An electric current generating device according to claim 1, including a housing around said stack of panels but open at its ends, and insulation between the housing and case.
Claim 5
Dependent Claim
43 words
An electric current generating device according to claim 1, in which a bus bar at each end of said stack extends through projecting portions of at least some of the panels, and wires connect the bus bars with the cells on each panel.
Claim 6
Dependent Claim
96 words
An electric current generating device comprising a sealed case, a photoelectric core inside the case sensitive to ultraviolet radiations and having therein a multiplicity of openings communicating with its outside, a radioactive self-ionized isotopic fluid surrounding the core and filling its openings, said fluid producing ultraviolet radiations that activate the core to produce electric current, means electrically connected with said core and extending out of the case for conducting said current away from the photoelectric core, and means for varying the pressure of said fluid in said case to control the electrical output of said core.
Claim 7
Dependent Claim
96 words
An electric current generating device comprising a sealed case, a photoelectric core inside the case sensitive to ultraviolet radiations and having therein a multiplicity of openings communicating with its outside, a radioactive self-ionized isotopic fluid surrounding the core and filling its openings, said fluid producing ultraviolet radiations that activate the core to produce electric current, means electrically connected with said core and extending out of the case for conducting said current away from the photoelectric core, and means for varying the pressure of said fluid in said case to control the electrical output of said core.
Claim 8
Dependent Claim
86 words
An electric current generating device according to claim 5, including a storage chamber for said fluid outside of said case, a conduit connecting the chamber with the inside of the case, said pressure-varying means being means for pumping fluid through said conduit from the case to said chamber to reduce the fluid pressure in the case and increase the pressure in the chamber, and a valve for allowing flow of fluid from said chamber back through said conduit to the case to increase the pressure therein.
Claim 9
Dependent Claim
31 words
An electric current generating device according to claim 6, including a differential pressure control valve exposed to the fluid pressure in said case for controlling said pumping means and first-mentioned valve.
Claim 10
Dependent Claim
44 words
An electric current generating device according to claim 5, in which said core includes a plurality of ultraviolet light sensitive cells electrically connected together, and means supporting the cells in a plurality of parallel layers with each layer containing a plurality of the cells.
References Cited (Backward Citations)
US2884538A
Cited
US2904612A
Cited
US3031519A
Cited
US3093567A
Cited
US3438365A
Cited
US3497392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |