US3934539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemiluminescent foldable signal device
Assignee: United States Department of the Navy
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Filing: 1974-03-26
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Granted: 1976-01-27
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Expires: 1994-03-26
Abstract
Abstract A signal device combining a fluorescent or phosphorescent light tube and aovel base to be thrown or dropped from a vehicle as a warning marker. The light tube may be of the chemically actuated type and the base preferably has four pivotally attached resilient legs serving to ensure that the device will assume an angular position of about 45° when dropped.
Inventors
- 👤 Steven M. Little
- 👤 Robert L. Gerber
- 👤 Carl A. Heller
- 👤 Vincent J. Esposito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:36
CPC Classifications
B; B60; B60Q; B60Q7/00; E; E01; E01F; E01F9/00; E01F9/60; E01F9/658; E01F9/662; F; F21; F21K; F21K2/00; F21K2/06; F21L; F21L19/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
130 words
For use as a signal device to be deployed upon a supporting surface, the combination comprising: an elongated plastic tubular chemiluminescent light member; a detachably connected support means effective to maintain said light member at an angle of 45° or more to the surface upon which it is deployed; said support means comprising; a tubular cup shaped portion receiving one end of said light member; a generally square base portion orthogonal to said cup portion; and said square base portion having four elongated legs pivotally fastened to the four sides thereof and biased to a position orthogonal to said cup portion so that said legs may be folded together for convenience in storage and yet when said legs are deployed they present four points extending orthogonal to said cup portion.
Claim 2
Dependent Claim
130 words
For use as a signal device to be deployed upon a supporting surface, the combination comprising: an elongated plastic tubular chemiluminescent light member; a detachably connected support means effective to maintain said light member at an angle of 45° or more to the surface upon which it is deployed; said support means comprising; a tubular cup shaped portion receiving one end of said light member; a generally square base portion orthogonal to said cup portion; and said square base portion having four elongated legs pivotally fastened to the four sides thereof and biased to a position orthogonal to said cup portion so that said legs may be folded together for convenience in storage and yet when said legs are deployed they present four points extending orthogonal to said cup portion.
Claim 3
Dependent Claim
14 words
The device of claim 1 wherein said light member comprises manually actuable chemiluminescent means.
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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) | 1979-01-26 | 1979-07-28 | 1980-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-26 | 1983-07-28 | 1984-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-26 | 1987-07-28 | 1988-01-27 | $7700.00 | Window Closed / Lapsed |