US4352539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent light with threaded connector
Assignee: Central Tools Inc
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Filing: 1980-05-30
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Granted: 1982-10-05
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Expires: 2000-05-30
Abstract
Abstract A portable fluorescent light, utilizing a fluorescent tube mounted in an elongated, transparent, plastic housing. Sockets for the fluorescent lamp are mounted to the interior of the housing and electrical circuitry within the housing supplies current to operate the lamp. The circuitry includes a ballast and a starter that are also mounted within the tubular housing at one end. A threaded lamp connector of the type normally found on incandescent light bulbs extends outwardly from one end of the housing and is associated with the electrical circuitry to provide an electrical connector for connecting the light to a conventional alternating current power source. The threaded connector is adapted to be threaded into a standard threaded female socket, such as might be found at the end of an incandescent-trouble-light cord unit.
Inventors
- 👤 Gary W. Vest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:16
CPC Classifications
F; F21; F21V; F21V23/00; F21V23/06; F21L; F21L14/00; F21L14/02; F21L14/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
245 words
In a portable fluorescent light including an elongated, transparent, tubular housing, an axially elongated, cylindrical fluorescent lamp positioned in said housing coaxial therewith, and electrical circuit means, including two fluorescent lamp sockets, for energizing said lamp, each one of said lamp sockets being mounted on said tubular housing adjacent an associated end thereof, the improvement wherein the lamp further comprises: electrical ballast means associated with said electrical circuit means and including a protective cover therefor, said cover being connected to and in axial alignment with said housing; electrical lamp starter means associated with said electrical circuit means; and connector means at the end of the light associated with said ballast means and in axial alignment with said cover, said connector means including at its end distal from said housing a threaded annular electrical contact adapted for electrical connection to a conventional threaded electrical socket of a trouble light power cord for energizing said fluorescent lamp, said connector means including a generally cylindrical dielectric body with a recess formed therein to receive said starter means, said cylindrical dielectric body and starter means therein being adapted to be received within the incandescent bulb receptacle of the trouble light power cord while the ballast is disposed axially between the start and the fluorescent lamp and is thereby adapted to be supported out of but adjacent the receptacle of the power cord when the electrical contact is fully engaged with the electrical socket of the trouble light power cord.
Claim 2
Dependent Claim
245 words
In a portable fluorescent light including an elongated, transparent, tubular housing, an axially elongated, cylindrical fluorescent lamp positioned in said housing coaxial therewith, and electrical circuit means, including two fluorescent lamp sockets, for energizing said lamp, each one of said lamp sockets being mounted on said tubular housing adjacent an associated end thereof, the improvement wherein the lamp further comprises: electrical ballast means associated with said electrical circuit means and including a protective cover therefor, said cover being connected to and in axial alignment with said housing; electrical lamp starter means associated with said electrical circuit means; and connector means at the end of the light associated with said ballast means and in axial alignment with said cover, said connector means including at its end distal from said housing a threaded annular electrical contact adapted for electrical connection to a conventional threaded electrical socket of a trouble light power cord for energizing said fluorescent lamp, said connector means including a generally cylindrical dielectric body with a recess formed therein to receive said starter means, said cylindrical dielectric body and starter means therein being adapted to be received within the incandescent bulb receptacle of the trouble light power cord while the ballast is disposed axially between the start and the fluorescent lamp and is thereby adapted to be supported out of but adjacent the receptacle of the power cord when the electrical contact is fully engaged with the electrical socket of the trouble light power cord.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-10-04 | 1986-04-05 | 1986-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-04 | 1990-04-05 | 1990-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-04 | 1994-04-05 | 1994-10-05 | $7700.00 | Window Closed / Lapsed |