US3710115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sunburn warning device comprising detecting the ultra-violet component of solar radiation
Assignee: Individual
•
Filing: 1969-08-04
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Granted: 1973-01-09
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Expires: 1989-08-04
Abstract
Abstract The present invention relates to a sunburn warning device comprising radiation detection means, integrator means, measurement means and indicating means to advise the user of the amount of radiation received related to the time of exposure.
Inventors
- 👤 J Jubb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:29
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/42; G01J1/429
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
143 words
A sunburn anticipator for detecting solar radiation of wavelength less than 3,000 angstroms comprising, base means, electric circuit components operably mounted on said base means, said electric circuit components comprising, radiation detection means, integrator means, said integrator means connected such that it will integrate any output of said radiation detection means, switch means, said switch means connected to provide a pulse output the duration of which is a function of the output from said integrator, counter means, said counter means connected to measure the duration of any pulses from said switch means, metering means, said metering means connected to alternately measure the output of said integrator means and the output of said counter means, and indicator means, said indicator means connected so as to give an indication to the user the solar radiation level or that it has reached a predetermined cumulative value.
Claim 2
Dependent Claim
143 words
A sunburn anticipator for detecting solar radiation of wavelength less than 3,000 angstroms comprising, base means, electric circuit components operably mounted on said base means, said electric circuit components comprising, radiation detection means, integrator means, said integrator means connected such that it will integrate any output of said radiation detection means, switch means, said switch means connected to provide a pulse output the duration of which is a function of the output from said integrator, counter means, said counter means connected to measure the duration of any pulses from said switch means, metering means, said metering means connected to alternately measure the output of said integrator means and the output of said counter means, and indicator means, said indicator means connected so as to give an indication to the user the solar radiation level or that it has reached a predetermined cumulative value.
Claim 3
Dependent Claim
158 words
A sunburn anticipator for detecting solar radiation of wavelength less than 3,000 angstroms comprising base means, electric circuit components operably mounted on said base means, said electric circuit components comprising, radiation detector means, integrator means, said integrator means connected such that it will integrate any output of said radiation detector means, switching means operably connected to said integrator means adapted to adjust the time constant thereof, switch means, said switch means connected to provide a pulse output, the duration of which is a function of the output from said integrator, counter means, said counter means connected to measure the duration of any pulses from said switch means, metering means, said metering means connected to alternately measure the output of said integrator means and the output of said counter means, and indicator means, said indicator means connected so as to give an indication to the user the solar radiation level or that it has reached a predetermined cumulative value.
Claim 4
Dependent Claim
158 words
A sunburn anticipator for detecting solar radiation of wavelength less than 3,000 angstroms comprising base means, electric circuit components operably mounted on said base means, said electric circuit components comprising, radiation detector means, integrator means, said integrator means connected such that it will integrate any output of said radiation detector means, switching means operably connected to said integrator means adapted to adjust the time constant thereof, switch means, said switch means connected to provide a pulse output, the duration of which is a function of the output from said integrator, counter means, said counter means connected to measure the duration of any pulses from said switch means, metering means, said metering means connected to alternately measure the output of said integrator means and the output of said counter means, and indicator means, said indicator means connected so as to give an indication to the user the solar radiation level or that it has reached a predetermined cumulative value.
References Cited (Backward Citations)
US2422766A
Cited
US2531000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |