US4540293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dielectric heat sensor
Assignee: The AT&T MVPD Group LLC
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Filing: 1983-09-19
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Granted: 1985-09-10
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Expires: 2003-09-19
Abstract
Abstract A dielectric heat sensor system for monitoring and measuring the effects of electromagnetic radiation on the performance or physical integrity of an electrical or electronic component includes a dielectric receiver in the form of a rectilinear array of fiber optic ends positioned to receive infrared heat waves from a bridgewire of an electro-explosive device and transmitting the infrared heat waves by way of a waveguide of electro optic fibers to an infrared detecting unit which is effective to activate an indicator.
Inventors
- 👤 Marvin W. Shores
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:44
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/02; G01J5/04; F; F42; F42B; F42B3/00; F42B3/10; F42B3/18; G01J5/0096; G01J5/046; G01J5/08; G01J5/0801; G01J5/0802; G01J5/0818; G01J5/0821; G01J5/0881
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
122 words
A dielectric heat sensor for monitoring the temperature of a bridgewire of an explosive device at substantially each point along said bridgewire's entire length without interfering with the electromagnetic environment, said bridgewire responding by temperature change to electromagnetic radiation; said sensor comprising: a plurality of dielectric optical waveguide means for position adjacent said bridgewire along substantially the entire length of said bridgewire for receiving infrared waves from substantially each point along the entire length of said bridgewire, and for transmitting received infrared waves to a remote location; remotely positioned infrared detector means connected to said dielectric optical waveguide means for detecting infrared waves transmitted thereto; and indicator means responsive to the detection of infrared waves by said detector for generating a signal.
Claim 2
Dependent Claim
122 words
A dielectric heat sensor for monitoring the temperature of a bridgewire of an explosive device at substantially each point along said bridgewire's entire length without interfering with the electromagnetic environment, said bridgewire responding by temperature change to electromagnetic radiation; said sensor comprising: a plurality of dielectric optical waveguide means for position adjacent said bridgewire along substantially the entire length of said bridgewire for receiving infrared waves from substantially each point along the entire length of said bridgewire, and for transmitting received infrared waves to a remote location; remotely positioned infrared detector means connected to said dielectric optical waveguide means for detecting infrared waves transmitted thereto; and indicator means responsive to the detection of infrared waves by said detector for generating a signal.
Claim 3
Dependent Claim
21 words
The heat sensor of claim 1 wherein: said optical waveguide means is a plurality of optical fibers formed into a waveguide.
References Cited (Backward Citations)
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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) | 1988-09-09 | 1989-03-11 | 1989-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-09 | 1993-03-11 | 1993-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-09 | 1997-03-11 | 1997-09-10 | $7700.00 | Window Closed / Lapsed |