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Publication numberUS3179792 A
Publication typeGrant
Publication dateApr 20, 1965
Filing dateSep 6, 1962
Priority dateSep 6, 1962
Publication numberUS 3179792 A, US 3179792A, US-A-3179792, US3179792 A, US3179792A
InventorsHarry Weiss
Original AssigneeHarry Weiss
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Fluorescent lamp
US 3179792 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

April 20, 1965 H. WEISS 3,179,792

FLUORESCENT LAMP Filed Sept. 6, 1962 INVENTOR HA RR Y Wl$-$ By w 3,179,792 FLUORESCENT LAMP Harry Weiss, 61 Carleon Ave., Larchmont, N.Y. Filed Sept. 6, 1962, Ser. No. 221,716 3 Claims. (Cl. 240-1L4) This invention relates to fluorescent lamps, and more particularly to a reflective lamp suitable for outdoor use.

The primary object of the invention is to generally improve fluorescent lamps. More particular objects are to protect a fluorescent lamp against low ambient temperature, typically for outdoor use in winter; to provide a reflector for .the lamp; and to combine the parts structurally so that a single simple assembly will both protect the lamp and reflect its illumination. A still further object is to provide a construction which is readily applicable to fluorescent lamps of standard or conventional construction.

To accomplish the foregoing general objects and other more specific objects which'will hereinafter appear, my invention resides in the assembly elements and their relation one to another as are hereinafter more particularly described in the following specification. The specification is accompanied by a drawing in which:

FIG. 1 shows a jacketed reflective fluorescent lamp assembly embodying features of the invention;

FIG. 2. is a section drawn to enlarged scale, and taken approximately in the plane of the line 22 of FIG. 1; and

FIG. 3 is a fragmentary longitudinal section, taken approximately in the plane of the line 3-'3 of FIG. 2.

Referring to the drawing, the assembly comprises a fluorescent lamp 12, a glass cylinder d4 of larger diameter around the lamp to jacket the same, and a reflective coating 16 on the inside of the jacket 14 for part of the periphery of the jacket, so that the jacket acts also as a reflector.

The lamp 12 may be of conventional construction including end pins 18 for support of and electrical connection to the lamp. The pins are received in conventional sockets, parts of which are indicated at 20 in FIG.

1. There are sealing rings 22 which are made of a yieldable resilient material having the characteristics of rubber, there being one such ring applied frictionally over each end of the lamp. The rings 22 are annularly recessed, as shown at 24 in FIG. 3, to receive and to close the ends of the jacket 14. These rings further hold the jacket in coaxial relation with the lamp 12. The reflective coating 16 is preferably a white pigment coated on the inside of the jacket 14 for a part of the periphery of the jacket, say half the periphery, as shown in FIG. 2.

The lamp 12 in the present case has dished aluminum ends or caps 30 which are cemented to the ends of the glass envelope of the lamp, and which themselves carry phenolic insulation 32 for the terminal pins 18. The

inside diameter of the rings 22 is selected to be received with a snug frictional fit over the ends of the lamp 12.

In a typical case the lamp 1 2 has an outside diameter of 1 /2 inches and the jacket 14 an outside diameter of 2 /8 inches. The wall thickness of the jacket is about 1 to 15 millimeters, leaving a jacket space of about A inch around the lamp. These dimensions are given as an example, and are not intended to be in limitation of the invention.

The envelope of lamp 12 has the usual fluorescent coating 15 on its inside wall. The reflective coating 16 may be a film of any good light reflecting paint. Such a paint may be fabricated by milling titanium or zirconium oxide in a pebble mill together with nitrocellulose, the powder being carried in a suitable vehicle or solvent.

:It will be seen from the foregoing description that the sealing rings 22 and the jacket 14 may be applied to standard or conventional fluorescent lamps, so that the complete reflective and jacketed assembly may be made at minimum cost. Moreover, the assembly may be mounted in and carried by standard sockets, which again contributes to low cost.

One advantage of the illustrated assembly is that the direction of reflection may be altered as needed. In most \cases a fluorescent lamp is mounted with its pins in a horizontal plane, and assuming that downward reflection is Wanted, the reflecting surface of the jacket is disposed at the top or above the plane of the pins. However, in some special situation it may be desired to reflect the light in someotber direct-ion relative to the pins, and in such case it is merely necessary to twist the lamp within the end seals, or alternatively, to turn the jacket relative to the end seals, thereby changing the direction of reflection.

Another advantage of the present construction is that the reflector is sealed at the ends and there-fore remains clean. It retains its white color and its reflection efliciency over a long period of use. Indeed, the lamp itself may wear out and .be replaced without requiring a new reflector.

It is believed that the construction and method of use of my improved assembly, as well as the advantages thereof, will be apparent from the foregoingdetailed description. It will also be apparent that while I have described the invention in a preferred form, changes may be made without departing from the scope of the invention as sought to be defined in the following claims.

I claim:

1. A jacketed reflective fluorescent lamp assembly, said assembly comprising a fluorescent lamp which may be of conventional construction including end pins for support of and electrical connection to the lamp, a glass cylinder of larger diameter around said lamp to jacket the same, said jacket being slightly shorter than said lamp, a sealing ring at each end of the lamp, said rings serving to close the ends of the jacket and to hold the jacket in coaxial relation with the lamp, and a reflective coating deposited on the inside of the jacket for part of the periphery of the jacket, whereby the jacket acts also as a reflector, said lamp and jacket being handled as a unit with the lamp serving as the support for the jacket.

'2. A jacketed reflective fluorescent lamp assembly, said assembly comprising a fluorescent lamp which may be of conventional construction, a glass cylinder of larger diameter around said lamp to jacket the same, said jacket being slightly shorter than said lamp, sealing rings made of a yieldable resilient material having the characteristics of rubber, there being one such ring applied frictionally over each end of the lamp, said rings being annularly recessed to receive and close the ends of the jacket and to hold the jacket in coaxial relation with the lamp, and a reflective coating deposited on the inside of the jacket for part of the periphery of the jacket, whereby the jacket acts also as a reflector, said lamp and jacket being handled as a unit with the lamp serving as the support for the jacket.

3. A jacketed reflective fluorescent lamp assembly, said assembly comprising a fluorescent lamp which may be of conventional construction including end pins for support of and electrical connection to the lamp, a glass Patented Apr. 20, i965 sealing rings made of a yieldable resilient material having the characteristics of rubber, there being one such ring applied frictionally over each end of the lamp, said rings being annularly recessed to receive and close the ends of the jacket and to hold the jacket in coaxial relation with the lamp, and a reflective coating of white pigment deposited on the inside of the jacket for about half the periphery of the jacket, whereby the jacket acts also as a reflector, said lamp and jacket being handled as a unit with the lamp serving as the support for the jacket.

References Cited in the file of this patent UNITED STATES PATENTS Holland Aug. 26, 1924 Livers Jan. 19, 1943 Slaughter May 8, 1951 Lipscomb Aug. 26, 1958 Darneral Mar. 19, 1959 Hoxie'et a1. July 31, 1962

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1506064 *Feb 24, 1923Aug 26, 1924Holland Keron JHeadlight dimmer
US2308986 *Aug 2, 1940Jan 19, 1943Faries Mfg CompanyFluorescent bed lamp
US2551710 *May 4, 1945May 8, 1951Extruded Plastics IncLight diffusing thermoplastic tube to encircle an elongated lighting element
US2849598 *Sep 8, 1953Aug 26, 1958Willis L LipscombNon-glare lighting fixture
US2887567 *Mar 4, 1957May 19, 1959Samuel HerstFluorescent light fixture
US3047716 *Jan 31, 1961Jul 31, 1962Corning Glass WorksLuminaire
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3313929 *Dec 4, 1964Apr 11, 1967Edward L SchiavoneIlluminated umbrella
US3358167 *Oct 18, 1965Dec 12, 1967Gen ElectricJacketed discharge lamp
US3558873 *Sep 27, 1967Jan 26, 1971Pyle National CoTunnel lighting fixture
US3673401 *Oct 29, 1969Jun 27, 1972Thermoplastic Processes IncFluorescent lamp protection apparatus
US3720826 *May 5, 1970Mar 13, 1973Westinghouse Electric CorpTubular electric discharge lamp with integral protective-insulating sleeve
US6422721 *May 22, 2000Jul 23, 2002Genlyte Thomas Group LlcTube guard system
US6614039Jun 23, 1999Sep 2, 2003Brad C. HollanderHermetically sealed ultraviolet light source
US7081225Jul 19, 2000Jul 25, 2006Hollander Brad CPositioning a fluid conduit at least partially submerged in the liquid held in reservoir; placing an ultraviolet lamp within the fluid conduit; illuminating the ultraviolet lamp by exciting the gas and vaporizable metal within the tube so that the ultraviolet light is generated, killing microorganisms
US7178944 *Mar 21, 2003Feb 20, 2007Walton Randal DLighting apparatus
US7390106Oct 27, 2006Jun 24, 2008Walton Randal DLighting apparatus
US7748871Feb 19, 2008Jul 6, 2010Walton Randal DLighting apparatus
US8053962 *May 4, 2009Nov 8, 2011General Electric CompanyFluorescent lamp with UV-blocking layer and protective sleeve
US8288949Apr 29, 2009Oct 16, 2012General Electric CompanyFluorescent lamp with protective sleeve
US8456075 *Sep 30, 2004Jun 4, 2013Auralight International AbFluorescent lamp for cold environments
US8469541Nov 19, 2010Jun 25, 2013Randal D. WaltonLighting apparatus
US8721127Apr 27, 2010May 13, 2014Randal D. WaltonLighting apparatus with reflector rotatably coupled to an adapter
EP0331660A2 *Mar 2, 1989Sep 6, 1989Auralight AktiebolagA low pressure gas discharge lamp
EP1093660A1 *Apr 15, 1999Apr 25, 2001Norvic LLCDevice to optimize the generation of visible light produced by the influence of an electric field (e) on the ultraviolet radiation. the device is applicable to mercury arc vapor lamps and/or fluorescent tubes
Classifications
U.S. Classification362/645, 313/493, 313/113, 313/312
International ClassificationF21V17/04, F21V17/00, H01J61/34
Cooperative ClassificationF21V17/04, H01J61/34
European ClassificationH01J61/34, F21V17/04