US4280169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent lamp end cap
Assignee: Individual
•
Filing: 1979-07-25
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Granted: 1981-07-21
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Expires: 1999-07-25
Abstract
Abstract A decorative and lockable end cap for fluorescent lamps in the form of an enclosure which covers and conceals the base of the fluorescent lamp and its lampholder, whereby enhancing the appearance of bare bulb fluorescent lamp luminaires, thus improving their acceptance as energy conservation lighting fixtures and also deterring lamp theft when the fixtures are located within easy reach in public places.
Inventors
- 👤 Carl J. Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:01
CPC Classifications
H; H01; H01R; H01R33/00; H01R33/05; H01R33/06; H01R33/08; H01R33/0881; F; F21; F21V; F21V19/00; F21V19/0075; F21V19/008
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
125 words
An end cap for use with a fluorescent lamp fixture having spaced lampholder means between which a fluorescent lamp is suspended, said end cap comprising a body having a first cavity formed therein and opening to one end of said body, a second cavity formed in said body and connecting with said first cavity, said second cavity exiting to the exterior of said end cap and adapted to permit one of said lampholder means to be inserted therethrough and into said second cavity, each end of said lamp being inserted through said one end and into the first cavity of an end cap disposed over one of said lampholder means and releasably engageable therewith to secure said lamp end, lampholder means and end cap together.
Claim 2
Dependent Claim
125 words
An end cap for use with a fluorescent lamp fixture having spaced lampholder means between which a fluorescent lamp is suspended, said end cap comprising a body having a first cavity formed therein and opening to one end of said body, a second cavity formed in said body and connecting with said first cavity, said second cavity exiting to the exterior of said end cap and adapted to permit one of said lampholder means to be inserted therethrough and into said second cavity, each end of said lamp being inserted through said one end and into the first cavity of an end cap disposed over one of said lampholder means and releasably engageable therewith to secure said lamp end, lampholder means and end cap together.
Claim 3
Dependent Claim
169 words
In a fluorescent lamp fixture having spaced lampholder means between which a fluorescent lamp is suspended, said lamp and lampholder means having interconnecting contact means for providing electrical power to said lamp, an end cap mountable over each said lampholder means and comprising a body having a first cavity formed therein and opening to one end of said body, a second cavity formed in said body and connecting with said first cavity, said second cavity exiting to the exterior of one side surface thereof said end cap and adapted to permit one of said lampholder means to be inserted therethrough and into said second cavity, each end of said lamp being inserted through said one end and into the first cavity of one of said end caps and into releasable engagement with the lampholder means disposed in the second cavity associated therewith effective to interconnect said contact means and releasably secure said end cap, lamp and lampholder to each other and to enclose said lampholder means and contact means.
Claim 4
Dependent Claim
169 words
In a fluorescent lamp fixture having spaced lampholder means between which a fluorescent lamp is suspended, said lamp and lampholder means having interconnecting contact means for providing electrical power to said lamp, an end cap mountable over each said lampholder means and comprising a body having a first cavity formed therein and opening to one end of said body, a second cavity formed in said body and connecting with said first cavity, said second cavity exiting to the exterior of one side surface thereof said end cap and adapted to permit one of said lampholder means to be inserted therethrough and into said second cavity, each end of said lamp being inserted through said one end and into the first cavity of one of said end caps and into releasable engagement with the lampholder means disposed in the second cavity associated therewith effective to interconnect said contact means and releasably secure said end cap, lamp and lampholder to each other and to enclose said lampholder means and contact means.
Claim 5
Dependent Claim
16 words
An end cap as is defined in claim 1 and which is cylindrical in overall configuration.
Claim 6
Dependent Claim
27 words
An end cap as is defined in claim 1 and wherein the second cavity projects through said cap in a direction substantially perpendicular to the axis thereof.
Claim 7
Dependent Claim
40 words
An end cap as is defined in claim 4 and wherein the second cavity is rectangular in configuration and the side wall thereof of greater dimension is disposed in a plane that is transverse of the axis of the cap.
Claim 8
Dependent Claim
25 words
An end cap as is defined in claim 5 and wherein the second cavity is configured to enable lampholder means to be slidably disposed therein.
Claim 9
Dependent Claim
31 words
A fluorescent lamp fixture as defined in claim 2 and wherein locking means interconnect with each of said end caps and its associated lampholder effective to releasably lock the same together.
Claim 10
Dependent Claim
17 words
A fluorescent lamp fixture as defined in claim 7 and wherein the locking means comprises screw means.
References Cited (Backward Citations)
US3892457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-07-20 | 1985-01-19 | 1985-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-20 | 1989-01-19 | 1989-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-20 | 1993-01-19 | 1993-07-21 | $7700.00 | Window Closed / Lapsed |