Patent US4225905A successfully refreshed from Google Patents.
US4225905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent light fixture
Assignee: Moriyama Sangyo KK
•
Filing: 1978-05-03
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Granted: 1980-09-30
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Expires: 1998-05-03
Abstract
Abstract A fluorescent light fixture having a cover assembly and base for insertion into an incandescent lamp socket. The cover assembly consists of two cover members, one of which is detachable for replacement of a fluorescent lamp supported within the cover assembly or for exchange of one of the cover members.
Inventors
- 👤 Hideo Moriyama
- 👤 Masayuki Katoogi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:58
CPC Classifications
H; H01; H01R; H01R33/00; H01R33/90; F; F21; F21V; F21V21/00; F21V21/02; F21S; F21S6/00; F21S8/00; F21S8/04; F21V21/002; F21Y; F21Y2103/00; F21Y2103/30; F21Y2103/33; F21Y2103/37; H01R33/88; H01R33/94; H01R33/942; Y; Y02; Y02B; Y02B20/00; Y02B20/30
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
155 words
A fluorescent light fixture comprising: a base for insertion into an incandescent lamp socket having electricity supplied thereto; a cover assembly attached to said base including a metal plate member for radiating heat from said fixture, a first cover member attached to said metal plate member, and a second cover member detachably connected to said first cover member, said metal plate and first and second cover members defining a sealed spaced within said cover assembly, a portion of at least one of said cover members being composed of a light transmitting material; a hot cathode low pressure mercury vapor fluorescent discharge lamp provided with electrical connecting means; a support member attached to said metal plate member for removably supporting said fluorescent discharge lamp within the space defined by said cover assembly; and electric circuit means including lighting auxiliary means for coupling the base attached to said cover assembly to the fluorescent discharge lamp connecting means.
Claim 2
Dependent Claim
155 words
A fluorescent light fixture comprising: a base for insertion into an incandescent lamp socket having electricity supplied thereto; a cover assembly attached to said base including a metal plate member for radiating heat from said fixture, a first cover member attached to said metal plate member, and a second cover member detachably connected to said first cover member, said metal plate and first and second cover members defining a sealed spaced within said cover assembly, a portion of at least one of said cover members being composed of a light transmitting material; a hot cathode low pressure mercury vapor fluorescent discharge lamp provided with electrical connecting means; a support member attached to said metal plate member for removably supporting said fluorescent discharge lamp within the space defined by said cover assembly; and electric circuit means including lighting auxiliary means for coupling the base attached to said cover assembly to the fluorescent discharge lamp connecting means.
Claim 3
Dependent Claim
34 words
A fluorescent light fixture according to claim 1, wherein the lighting auxiliary means coupling the base and the fluorescent lamp is an initiator circuit, and a stabilizer is provided exterior of the cover assembly.
Claim 4
Dependent Claim
36 words
A fluorescent light fixture according to claim 2, wherein the initiator circuit is an initiator bulb and wherein the stabilizer is a transformer provided adjacent the incandescent lamp socket side into which the base is inserted.
Claim 5
Dependent Claim
35 words
A fluorescent light fixture according to claim 3, wherein the initiator bulb is mounted on a socket assembly, said socket assembly having means for connecting the connecting means of said fluorescent lamp to said base.
Claim 6
Dependent Claim
43 words
A fluorescent light fixture according to claim 3, wherein said base has a longitudinal axis and said fluorescent lamp is of a circular shape defining a plane, said lamp being mounted so that said plane is parallel to the axis of said base.
Claim 7
Dependent Claim
29 words
A fluorescent light fixture according to claim 5, wherein said cover assembly has a reentrant part and letters and patterns are provided on a surface of the reentrant part.
Claim 8
Dependent Claim
47 words
A fluorescent light fixture according to claim 3, wherein the transformer is disposed in an adapter having an independent base and socket, the base of the adapter being fitted into the incandescent lamp socket and the socket of the adapter receiving the base of the cover assembly.
Claim 9
Dependent Claim
42 words
A fluorescent light fixture according to claim 2, wherein said stabilizer comprises an incandescent lamp said lamp being located in a socket in the cover assembly and protruding outwardly from the cover assembly, said initiator circuit being included within the cover assembly.
Claim 10
Dependent Claim
49 words
A fluorescent light fixture according to claim 1, wherein the lighting auxiliary means which connects the base attached to the cover assembly with the connecting means of the fluorescent lamp includes an initiator bulb and a stabilizing transformer, said transformer being supported in the center of the cover assembly.
Claim 11
Dependent Claim
59 words
A fluorescent light fixture according to claim 9, wherein said base has a longitudinal axis, a plane defining the boundary between the first and second cover members of said cover assembly being perpendicular to the longitudinal axis of said base, said transformer and said fluorescent lamp being supported by at least one of said first and second cover members.
Claim 12
Dependent Claim
33 words
A fluorescent light fixture according to claim 10, wherein said base is attached to one of said cover members and a support is provided within the other cover member for supporting a shade.
Claim 13
Dependent Claim
34 words
A fluorescent light fixture according to claim 10, wherein said base is attached to a cover member having a reentrant form, said reentrant cover member surrounding said socket when said base is inserted therein.
Claim 14
Dependent Claim
18 words
A fluorescent light fixture according to claim 10 wherein the cover assembly has the form of a shade.
Claim 15
Dependent Claim
21 words
A fluorescent light fixture according to claim 10, wherein a space is provided within said cover assembly for mounting the transformer.
Claim 16
Dependent Claim
43 words
A fluorescent light fixture according to claim 9, wherein a rotative connection structure is provided around the outer periphery of the base, said rotative connection structure contacting a corresponding connection structure provided in the socket when the base is fitted into the socket.
Claim 17
Dependent Claim
20 words
A fluorescent light fixture according to claim 1, wherein a plurality of openings are provided in the metal plate member.
Claim 18
Dependent Claim
66 words
A fluorescent light fixture according to claim 1, wherein the base is adapted to rotate within a limited angular range with respect to the cover assembly, the base being fitted into the socket by a fitting means mounted over the base, the position of the cover assembly being movable within said limited angular range when said base is fitted by said fitting means into said socket.
Claim 19
Dependent Claim
35 words
A fluorescent light fixture according to claim 1, wherein said fluorescent lamp is circular and is supported by coil springs hooked to brackets provided at a plurality of locations on one of the cover members.
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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) | 1983-09-30 | 1984-03-31 | 1984-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-30 | 1988-03-31 | 1988-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-30 | 1992-03-31 | 1992-09-30 | $7700.00 | Window Closed / Lapsed |