US4563729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-insulated, compact, folded fluorescent tube fixture
Assignee: Osram GmbH
•
Filing: 1984-06-26
•
Granted: 1986-01-07
•
Expires: 2004-06-26
Abstract
Abstract To provide for heat transmission of fluorescent tube accessory apparatus, aetal plate (16), for example of aluminum, is attached to the fixture structure which, otherwise, is entirely of plastic, having a base (3), a transparent closure cap (5) and an opaque cover cap (4). The caps (4) and (5), together with the base, define a chamber within which the lamp (2) is located, including the socket (6) thereof. Electrical accessory equipment (14) for the fluorescent lamp, for example starter, ballast and similar apparatus, is located against an internal support plate (15) which divides the chamber, the plate (15) having a reflective surface (22) facing the tube (2), and forming an attachment surface, at the same time, for the accessory apparatus (14). Plate (15) itself, is secured to support elements, such as posts and nipples (17, 20) extending from the support base interiorly of the chamber. All elements within the housing, thus, are double-insulated by the insulated housing structure itself.
Inventors
- 👤 Alfons Jendrewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:55
CPC Classifications
F; F21; F21V; F21V29/00; F21V29/85; F21V29/89; F21V23/00; F21V23/02; F21W; F21W2131/00; F21W2131/30; F21W2131/301; F21Y; F21Y2103/00; F21Y2103/30; F21Y2103/37
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
195 words
Double-insulated, compact folded fluorescent tube fixture having a folded fluorescent tube (2); fluorescent tube operating accessory apparatus (14); and electrical terminal devices (9, 11), comprising an assembly of a support base (3) of plastic material, an insulated cover cap (4) of plastic material and a closure cap (5) of transparent plastic material, the cover cap (4) and the closure cap (5) being fitted over the support base (3) and defining therewith an enclosed chamber; the fluorescent tube being located in the chamber beneath the transparent closure cap (5), and the fluorescent tube operating accessory apparatus (14) being located in said chamber, and secured to the support base of plastic material; and a metal plate (16) secured to the support base and located at a region thereof outside of said chamber to dissipate heat generated in operation of the lamp within the accessory apparatus (14), wherein the region of the support base (3) opposite the fluorescent tube accessory apparatus (14) is thickened with respect to the remaining portion of the support base to provide for increased electrical insulation between the accessory apparatus (14) and the metal plate (16) fitted against the outside of the support base.
Claim 2
Dependent Claim
195 words
Double-insulated, compact folded fluorescent tube fixture having a folded fluorescent tube (2); fluorescent tube operating accessory apparatus (14); and electrical terminal devices (9, 11), comprising an assembly of a support base (3) of plastic material, an insulated cover cap (4) of plastic material and a closure cap (5) of transparent plastic material, the cover cap (4) and the closure cap (5) being fitted over the support base (3) and defining therewith an enclosed chamber; the fluorescent tube being located in the chamber beneath the transparent closure cap (5), and the fluorescent tube operating accessory apparatus (14) being located in said chamber, and secured to the support base of plastic material; and a metal plate (16) secured to the support base and located at a region thereof outside of said chamber to dissipate heat generated in operation of the lamp within the accessory apparatus (14), wherein the region of the support base (3) opposite the fluorescent tube accessory apparatus (14) is thickened with respect to the remaining portion of the support base to provide for increased electrical insulation between the accessory apparatus (14) and the metal plate (16) fitted against the outside of the support base.
Claim 3
Dependent Claim
31 words
Fixture according to claim 1, further comprising an attachment plate (15) aecured to the support base (3), said accessory apparatus (14) being attached to and supported by said attachment plate (15).
Claim 4
Dependent Claim
40 words
Fixture according to claim 2, wherein the attachment plate (15) is located within the chamber in essential alignment with the folded fluorescent tube (2), and is formed with a reflective surface (22) on the side thereof facing the fluorescent tube.
Claim 5
Dependent Claim
24 words
Fixture according to claim 1, wherein the cover cap (4) and the closure cap (5) are removably, releasably secured to the support base (3).
Claim 6
Dependent Claim
19 words
Fixture according to claim 1, wherein the transparent closure cap (5) is formed, internally, with light distribution prisms (19).
Claim 7
Dependent Claim
49 words
Fixture according to claim 1, further including an internal support plate (15) secured to the support base (3); and wherein the accessory apparatus (14) is secured to and supported by said support plate; and internally extending support elements (17, 20) connecting the support plate (15) and the support base.
Claim 8
Dependent Claim
27 words
Fixture according to claim 6, wherein the support plate (15) is formed with a V-shaped light distribution zone in the region thereof beneath the fluorescent tube (2).
Claim 9
Dependent Claim
20 words
Fixture according to claim 7, wherein the surface (22) of the support plate (15) facing the fluorescent tube is reflective.
Claim 10
Dependent Claim
27 words
Fixture according to claim 6, further including support brackets (23) extending from the support plate (15) and having a V-groove engaging and supporting the fluorescent tube (2).
Claim 11
Dependent Claim
14 words
Fixture according to claim 6, wherein said support plate (15) is of plastic material.
Claim 12
Dependent Claim
148 words
Double-insulated, compact, folded fluorescent tube fixture having a folded fluoresent tube (2), fluorescent tube operating accessory apparatus (14) and electrical terminal devices (9), and comprising, in accordance with the invention, an assembly of a support base (3) of plastic material; an insulated cap structure (4, 5) of plastic material, the cap structure being, at least in part, transparent in the region in alignment with the folded fluorescent tube, and defining with the support base (3) an enclosed chamber; and a metal plate (16) secured to the support base and electrically insulated from the fluoresent tube operating accessory apparatus (14) to provide for heat distribution and transfer from the accessory apparatus (14), said metal plate being substantially larger in areal extent than the areal extent of the accessory apparatus, wherein the metal plate (16) is located against the support base (3) at the surface thereof outside of said chamber.
Claim 13
Dependent Claim
148 words
Double-insulated, compact, folded fluorescent tube fixture having a folded fluoresent tube (2), fluorescent tube operating accessory apparatus (14) and electrical terminal devices (9), and comprising, in accordance with the invention, an assembly of a support base (3) of plastic material; an insulated cap structure (4, 5) of plastic material, the cap structure being, at least in part, transparent in the region in alignment with the folded fluorescent tube, and defining with the support base (3) an enclosed chamber; and a metal plate (16) secured to the support base and electrically insulated from the fluoresent tube operating accessory apparatus (14) to provide for heat distribution and transfer from the accessory apparatus (14), said metal plate being substantially larger in areal extent than the areal extent of the accessory apparatus, wherein the metal plate (16) is located against the support base (3) at the surface thereof outside of said chamber.
Claim 14
Dependent Claim
29 words
Fixture according to claim 11, wherein the support base (3) is formed with a recessed region outside of the chamber, the metal plate (16) being located within said recess.
Claim 15
Dependent Claim
16 words
Fixture according to claim 11, wherein said metal plate (16) is molded into the support base.
Claim 16
Dependent Claim
14 words
Fixture according to claim 11, wherein said metal plate (16) comprises an aluminum plate.
Claim 17
Dependent Claim
29 words
Fixture according to claim 1, wherein the support base (3) is formed with a recessed region outside of the chamber, the metal plate (16) being located within said recess.
Claim 18
Dependent Claim
16 words
Fixture according to claim 1, wherein said metal plate (16) is molded into the support base.
Claim 19
Dependent Claim
14 words
Fixture according to claim 1, wherein said metal plate (16) comprises an aluminum plate.
References Cited (Backward Citations)
US2710336A
Cited
US3171945A
Cited
US3183346A
Cited
US3419714A
Cited
US3647148A
Cited
US4141061A
Cited
EP0012234A1
Cited
DE2944967A1
Cited
US4388681A
Cited
US4379321A
Cited
US4398239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-06 | 1989-07-08 | 1990-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-06 | 1993-07-08 | 1994-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-06 | 1997-07-08 | 1998-01-07 | $7700.00 | Window Closed / Lapsed |