US4275325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent lamp with plural sealed enclosures and electrical connector therefor
Assignee: GUIM MULTI-TECH Corp
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Filing: 1979-08-13
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Granted: 1981-06-23
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Expires: 1999-08-13
Abstract
Abstract A fluorescent lamp having a longitudinal divider forming at least two enclosures inside its cylindrical glass envelope. Each enclosure has a set of electrodes on each end in a similar fashion as regular fluorescent lamps do. The end cap is provided with the corresponding electrodes terminals for each enclosure. An end cap connector is removably attached to the end cap providing for the corresponding contacts for the electrode terminals on the inside of said connector and the outside being capable of mating with commercially available sockets for fluorescent lamps.
Inventors
- 👤 Raul Guim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:23
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/30; H01J5/00; H01J5/50; H01J5/54; H01J5/58; H01J5/60
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
138 words
In a fluorescent lamp of the type having a longitudinally hermetically sealed glass envelope containing a rarified atmosphere wherein the improvement comprises: (a) a longitudinal divider inside said glass envelope defining a plurality of hermetically independent enclosures, (b) a plurality of electrode assemblies each one attached to one end of each one of said enclosures, (c) a pair of end caps each one attached to each end of said envelope and having a plurality of electrode terminals connected to said electrode assemblies, (d) a pair of end cap connectors removably attached to said end caps having a standard set of contact pins protruding through the outer wall of said connector capable of plugging in commercially available sockets and the inner wall having a set of contacts in alignment with said electrode terminals and electrically connected to said pins.
Claim 2
Dependent Claim
138 words
In a fluorescent lamp of the type having a longitudinally hermetically sealed glass envelope containing a rarified atmosphere wherein the improvement comprises: (a) a longitudinal divider inside said glass envelope defining a plurality of hermetically independent enclosures, (b) a plurality of electrode assemblies each one attached to one end of each one of said enclosures, (c) a pair of end caps each one attached to each end of said envelope and having a plurality of electrode terminals connected to said electrode assemblies, (d) a pair of end cap connectors removably attached to said end caps having a standard set of contact pins protruding through the outer wall of said connector capable of plugging in commercially available sockets and the inner wall having a set of contacts in alignment with said electrode terminals and electrically connected to said pins.
Claim 3
Dependent Claim
28 words
The improvement described in claim 1 further comprising means for guiding said connector over said end cap thereby insuring the alignment of said electrode terminals with said contacts.
Claim 4
Dependent Claim
17 words
The improvement described in claim 2 further comprising means for locking said connector to said end cap.
Claim 5
Dependent Claim
42 words
The improvement described in claim 3 wherein said means for locking said connector to said end cap includes a peripheral rim on said inner wall of said connector and a peripheral groove integrally formed on the outer periphery of said end cap.
Claim 6
Dependent Claim
23 words
The improvement described in claim 4 wherein said peripheral groove is defined by the interface between said glass envelope and said end cap.
Claim 7
Dependent Claim
39 words
The improvement described in claim 5 wherein said means for guiding said connector further includes a guide integrally built on the peripheral wall of said connector and a key integrally built on the peripheral wall of said end cap.
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) | 1984-06-22 | 1984-12-22 | 1985-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-22 | 1988-12-22 | 1989-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-22 | 1992-12-22 | 1993-06-23 | $7700.00 | Window Closed / Lapsed |