US4104708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shrouded chemical light source
Assignee: United States Department of the Navy
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Filing: 1974-07-08
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Granted: 1978-08-01
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Expires: 1994-07-08
Abstract
Abstract A self-luminescent article which comprises an opaque tubular shroud and a chemiluminescent device which comprises a light transmitting tubular body containing a chemiluminescent material, the chemiluminescent device being in telescopic relationship with the shroud and the shroud being provided with a stop means which prevents the complete removal of the chemiluminescent device from the shroud. The shroud permits the chemiluminescent device to be concealed while in operation and prevents the premature activation thereof.
Inventors
- 👤 William H. Bohli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:23
CPC Classifications
F; F21; F21K; F21K2/00; F21K2/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
114 words
Self-luminescent article comprising an opaque tubular shroud and a chemiluminescent device which comprises a light transmitting tubular body having closed ends, said tubular body containing a chemiluminescent material; said chemiluminescent device being in telescopic relationship with said shroud and reciprocally moveable therein, one end of said device being contained within said shroud and the other end being exposed, said end of the device contained within said shroud having a portion of larger cross-sectional area than the remainder of said device contained within said shroud, said shroud being provided with a stop means which cooperates with said enlarged end of the chemiluminescent device to prevent the complete removal of said chemiluminescent device from said shroud.
Claim 2
Dependent Claim
114 words
Self-luminescent article comprising an opaque tubular shroud and a chemiluminescent device which comprises a light transmitting tubular body having closed ends, said tubular body containing a chemiluminescent material; said chemiluminescent device being in telescopic relationship with said shroud and reciprocally moveable therein, one end of said device being contained within said shroud and the other end being exposed, said end of the device contained within said shroud having a portion of larger cross-sectional area than the remainder of said device contained within said shroud, said shroud being provided with a stop means which cooperates with said enlarged end of the chemiluminescent device to prevent the complete removal of said chemiluminescent device from said shroud.
Claim 3
Dependent Claim
30 words
The article of claim 1 wherein one end of the shroud is provided with a second stop means which prevents the complete enclosure of the chemiluminescent device within the shroud.
Claim 4
Dependent Claim
51 words
The article of claim 1 wherein the exposed end of the chemiluminescent device has a portion of larger cross-sectional area than the remainder of the exposed part of said device, and said exposed end cooperates with said stop means to prevent the complete enclosure of the chemiluminescent device within the shroud.
Claim 5
Dependent Claim
21 words
The article of claim 1 wherein the outer surface of the chemiluminescent device is in frictional contact with the stop means.
Claim 6
Dependent Claim
10 words
The article of claim 1 wherein the shroud is rigid.
Claim 7
Dependent Claim
30 words
The article of claim 4 wherein the exposed end of the device is provided with a pulling means which enables the device to be substantially exposed outside of the shroud.
Claim 8
Dependent Claim
190 words
A self-luminescent article comprising a tubular shroud, which is open at one end and at least partially closed at the other end, and a chemiluminescent device which comprises a light-transmitting tubular body having closed ends, said tubular body containing a chemiluminescent material, said chemiluminescent device being in telescopic relationship with said shroud and reciprocally moveable therein, one end of said device being contained within said shroud and the other end being exposed, said end of the device contained within said shroud having a portion of larger cross-sectional area than the remainder of said device contained within said shroud, said shroud being provided with a heat-shrinkable plastic cover, a portion of said cover extending beyond said open end of said shroud, a rigid collar being concentrically disposed over said extended portion of said cover and constricting said extended portion of said cover to a cross-sectional area which is smaller than said end of said chemiluminescent device contained within said shroud, the constricted, extended portion of said cover cooperating with the enlarged end of said device contained within said shroud to prevent the complete removal of said chemiluminescent device from said shroud.
Claim 9
Dependent Claim
190 words
A self-luminescent article comprising a tubular shroud, which is open at one end and at least partially closed at the other end, and a chemiluminescent device which comprises a light-transmitting tubular body having closed ends, said tubular body containing a chemiluminescent material, said chemiluminescent device being in telescopic relationship with said shroud and reciprocally moveable therein, one end of said device being contained within said shroud and the other end being exposed, said end of the device contained within said shroud having a portion of larger cross-sectional area than the remainder of said device contained within said shroud, said shroud being provided with a heat-shrinkable plastic cover, a portion of said cover extending beyond said open end of said shroud, a rigid collar being concentrically disposed over said extended portion of said cover and constricting said extended portion of said cover to a cross-sectional area which is smaller than said end of said chemiluminescent device contained within said shroud, the constricted, extended portion of said cover cooperating with the enlarged end of said device contained within said shroud to prevent the complete removal of said chemiluminescent device from said shroud.
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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) | 1981-07-31 | 1982-01-30 | 1982-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-31 | 1986-01-30 | 1986-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-31 | 1990-01-30 | 1990-08-01 | $7700.00 | Window Closed / Lapsed |