US2375354A - Electrical fixture for use with filament gaseous lamps or the like - Google Patents

Description

G. G. ELLNER ELECTRICAL FIXTURES FOR USE WITH FILAMENT GASEOUS LAMPS OR THE LIKE May s, 1945.

2 SheetsSheet 1 Filed Nov. 11, 1942 INVENTOR. GEORGE a 51mm. BY M E W Arm/ ax y 1945- G. G. ELLNER 2,375,354

ELECTRICAL FIXTURES FOR USE WITH FILAMENT GASEOUS LAMPS OR THE LIKE Filed NOV. 11, 1942 2 Sheets-Sheet 2' INVENTOR. GEORGE c1. ELLNER,

ATTORNEY Patented May ,8, 1945 UNITED STATE.

ELECTRICAL FIXTURE FOR USE FILA- MENT GASEOUS LAMPS OB THELLIKE.

George G. Ellncr, Long Island, N. Y. Application November 11, 1942, sci-ail No. 465,232

Claims. (01. 240-78) This invention. relates generally to electrical fixtures employing-either gaseous carbon are or filament lamps for the emission of rays and has further reference to that class of electrical devices which generate the bactericidalband of the ultra-violet spectrum for. killing bacteria, mold, etc., and for other germicidal or sterilizingpurposes. It has more particular reference to fixtures for use with tubular gaseous lamps designed for the emission of ultra-violet radiation for extermination of bacteria and for general sterilization.

In considering the production of eflicient devices of the above nature, it. is essential that provision be made. for eliminating all hazards, for controlling and directing the ultra-violet radiation, and for increasing the ultra-violet intensity within the effective field of operation.

It is an object of the present invention to provide means for housing, controlling and directing the radiation of electrically operated lamps and more specifically bactericidal or sterilizing ultra-violet ray emitting lamps.

It isa further object of the present invention to provide for such lamps a .hood in the. form of a trough-like shell in which is housed a removable channel on which is mounted a com plete assembly of transformer, sockets to receive the lamp tube, splice box for making the primary connection without removing the channel, and a partition which divides the channel into two raceways for containing the primary and secondary wiring for the said tube.

It is a still further object of the present. invention to provide means whereby a plurality of said hoods may be connected together.

Another object of the present invention resides in'providing a hood for'an ultra-violet lamp, which by its construction increases the ultraviolet intensity within the effective field of the hood, and embodying an instrumentality or instrumentalities possessing high co-eillcientv of ultra-violet reflection for controlling and reflecting the rays, whereby the effectiveness of the bacteridical ultra-violet lamp is increased in more rapidly destroying bacteria, mold, virus,. yeasts in critical areas, particularly, where sterile environment is vital.

Yet another object of the present invention resides in the provision of an inspection window in said hood which will prevent the passage of ultra-violet rays therethrough thus safeguarding the eyes of a person inspecting the device- Another object of the present invention is to provide a hood for an ultra-violet sterilizing lamp which'will protectively shield from the eyes of workers, the ultra-violet rays emitted from the lamp and control the direction oi. the rays for irradiation of objects or articles. which are to receive the bactericidal or sterilizing. treatment. Thus conjunctivitis. (severe eye-irritation) and.

skin. irritation of workersare prevented and the.-

purpose intended eillciently eflectuated- Still another object of the present" invention is to provide a bactericidal ultra-violet lamp with a hood which willaflord mechanical protection" against the accumulation of micro-organismsandJ thus shield the protected area.

It is still another object to provide a device of. the foregoing nature which is simple, convenient, efllcient and practical.

This invention accordingly consists in the rep. tures of construction, combination of:.parts,,-and in the uniquerelations. of the members. and. in

' the relative proportioning and disposition thereof; all as more completely outlined herein. 1

To enable others skilled in the art so fully-to comprehend the underlying. features thereof that they may embody the same by the modifications.-

in structure and relation. contemplatedbyithis; invention, drawings depicting. certain forms of? the invention havebeen annexed as-a part0! this: disclosure, and in such drawings,.lilreicharactersof reference denote corresponding parts ithrough- 1 out all the views. of which:

Fig. 1 is a perspective view of a bactericidal. ultra-violet lamp fixture made in accordance with the invention;

Fig. 2 is a bottom' plan view of Fig. .1;

Fig. 3 is a cross-sectional view taken alonglline' 3-3 of Fig. 2;

Fig. 4 is a bottom view of the channel assembly of the fixture; n

Fig. 5'is a side elevational view, partly'in section, of a fixture embodying the invention in. a modified form;

Fig. 6 is a bottom plan view of the lamp portion of Fig. 5;

Fig. 7 is a, front elevational view, partly in section of a fixture embodying the invention in a further modified form; and

Fig. 8 is a sectional view taken along lineal- 8 of Fig. '7.

Referring now more particularly to the draw This electrical fixture comprlsesyahood ll haying, a top 23; outwardly slantingsidestlfligiand. .1 ends 20. Hood I6 may alsobeprovided with:,a

skirt portion shown. in 'dott-dash outline.wiril-iliig ure 1 and indicated bythe numeralillatoduri- I ,ther. control and direct the ultra-violet rays gen.

erated as later on described.

Hood I3 is provided at one of its slanting sides with an inspection window I! which removably engages-a glass or other transparent or translue 'cent member' l3, which will prevent the passage of ultra-violet rays therethrough. Member |3 is held in place by a frame |8a provided with a lug l8b which is bent over after the member I3 is placed inposition. to prevent its accidental re moval. Forming part of or attached to top wall 23 is a housing l3 for the transformer 38. Hood l3 may be suspended from a ceiling by-chains, cables, rods or bars (not shown), for which pur poses there are provided on either side of housing l3, eyes and links 24, 25; it being understood however, that the hood l may be supported or suspended in any other suitable mannensuch as, for example, brackets, stanchions, etc. I Disposed within hood l5 and running substantiallythe entire length thereof is a channel as-. sembly or ultra-violet generating unit 3|. Unit 3 comprises a channel-shaped member from each end ofwhich depends a bracket v23 having securedthereto the inner wall 23 forming a pocket 33 having an annular opening through which projects" part of the sooketassembly 40.

"The socket assemblies 43 each comprises a socket 21 having a'flange 21" near one end thereof, the said socket 21 being threaded to receive the clamping sleeve 28, a cap 21' being removably secured to 'socket'21 adjacent flange 21' Each socket 21 under cap 21' carries an electrical con tact to which is secured respectively the cables 35, 3511 connected to the secondary winding of transformer 38: The socket assembly 40 is se-.

cured towall 23 by first projecting socket 21 through the opening in wall 23' so that flange 21" abuts against the wall 23, and then placing sleeve 23 over the free end of the socket and screwing the sleeve thereon until it is tight up against wall 23'.

The conventional long tube 25 containing the substances'which generatethe ultra-wiolet rays; is' disposed between sockets 21, its ends entering therein and making electrical connection with contacts within the sockets. The tube 23 may be easily placed in operatingposition by unscrewing sleeve 23, pushing outwardly. socket 21 and then after the end of the tube is inserted within the socket, tightening up on the sleeve 23.

Base 4| of the channel-shaped member. is provided with. upwardly extending side walls 42 and longitudinal partitions 32 dividing the member 4| into two raceways 43, 44. Transformer 33 is mounted on base 4| at about its' center. The two-wire cable 33 connects with the primary winding of the transformer and the single-wire cables 35 and 35a connect with the secondary winding of the transformer. Cable33 is located in raceway 43 and cables 35, 35a are located in raceway 44. The ends of the raceways are preferably rounded off 'toprevent injury to the re-:

against the inside surface of top 23 of the hood I6, and as adjunct which together with housing |3 completes the covering for transformer 33.

Bolts 36 and nuts 31 may be used to secure channel assembly 3| to hood top 23. These bolts are secured to the top 23 and also act as guides in positioning the channel assembly thereon.

A splice hole 31a is provided in base 4| of the channel member-to facilitate connecting cable 33 with the main power line, and a cover (not shown) may be provided for hole 3 la, which may be secured to base 4| by bolts entering holes 3|b. A knock-out hole 20 may be provided in each end 20 of the hood to connect together a plurality of fixtures in tandem. Also a knockout hole 20b may be provided in the channel assembly 3| adiacent cable 33 for facilitating electrical connection of the fixtures. Where it is desired to use two or more lamps in tandem or side by side or both, it might be considered expedient to place the transformer or transformers remotely of the hoods, in which case the channel assembly would be modified to accommodate such battery of lamps without necessitating provision of one or more transformers and transformer housings in the hood, or dual raceways.

It may be readily understood from the foregoing that a complete unit has been provided which contains all of the parts necessary to generate ultra-violet or other rays, upon the application of an electrical current and which together with the hood complete a fixture which is practical and eflicient and from which all'hazards are eliminated. e

The hood may be provided with suitable re= flecting surfaces or elements to increase the ultraviolet or other ray intensity. within the effective field of .the hood. Or the base 43 of the channel 3| may be parabolic or otherwise shaped to provide a reflecting area for the emitted rays.

Figs. 5 and 6 disclose theinvention in a modifled form. The fixture therein shown comprises a dome-shaped hood 55 having a bracket support 53 to which one end of the curved element 5| of a telescoping bracket is secured, the other element 52 of said bracket being held in adjustable sliding engagement with element 5| by the setscrew 53. A conventional clamping arrangement 54 may be provided to secure the fixture to a table, desk or other desirable support or device. It is to be understood that any other instrumen tality may be employed to suspend or support the lamp.

Extending within dome or hood 55 is a housing 82' having sockets 60, 6|, to which the circular tubular lamp 58 is electrically attached. Housing 32 also supports the substantially annular reflector 53 (arcuate in cros section) disposed 5! may be housed inhousing 52.

Figs. 7 and 8 disclose a further mode of prac- I from a wall or other support. It is to be understood that the hood just described may assume any other convenient and practical shape.

The channel assembly 85 which 'is received within the said hood and secured to the rear wall 32 thereof by the securing means 32, 33, is similar to that described with regard to channel assembly 3|, (Figs. 1-4), except that the transformer Slots or other suit- 04 is disposed below tubular lamp II, and on the same (front) side of the channel assembly as the sockets and lamp. I

Figs. 7 and 8, show to view one of the sockets to with it ferrule or threaded clamping sleeve 9|, supported on bracket 94; and in Fig. 8, there is also seen the channel partition 88 with the primary cable connection 81 in one raceway and the secondary cable connection 88 in the other raceway.

The device disclosed in Figs. 7 and 8, is parucman adapted.- for use where it is desired that sterilization or other ray-emitting treatment be effected above and below the location of the device as well as in all other directions, the openings TI and I8 facilitating such treatment. The unit is so constructed as to eliminate eye, skin or other hazards, including that resulting from possible explosion r breakage of the tubular lamp. Any suitable safety device may be applied to prevent shock in short-circuiting during servicing of essential parts. Further provision may be made to include means of producing forced circulation through the openings .1 'I, 18.

It will thus be seen that there has been provided by this invention electrical fixtures in which the various objects hereinabove set forth together with many thoroughly practical advan tages, are successfully achieved.

As many possible embodiments may be made of the above invention, and as many changes might be made in the embodiments above set forth, it is to be understood that all matter hereinbefore set forth or shown in the accompanying drawings is to be intended as illustrative and not in a limiting sense.

It is to be further understood that although the invention has been described more particularly, with regard to tubular gaseous lamps, principally ultra-violet ray emission types, it is withfrom the true spirit and scope of the-invention as herein defined and claimed. It is to be further understood that the terms which are employed herein are used in a descriptive rather than in a limiting sense, except, however, for such limitaa top including a. transformer housing, and a device within said hood, said device comprising a base having upwardly extending flanges abutting against said top, an upwardly-extending partition between said flanges dividing said base into substantially two raceways, a transformer on said base. electrical wiring connected to the primary of said transformer and disposed within one of said raceways, other electrical wiring connected to the secondar of said transformer and disposed within the other of said raceways, a socket at each end of said base, means connecting said sockets to said base, said other electrical wiring being connected to said sockets, ray-emission means connected to said sockets, means for mova'bly fixing at least one of said sockets relatively to the other of said sockets, said transformer housing and portions of said flanges completing an enclosure for said transformer.

2. An electrical unit comprising a hood having a top including a transformer housing; and

- a device within said hood, said device comprisin the contemplation of this invention not to limit its scope, thereto, but to embrace its use in connection with various types of gaseou and filament lamps which may be applicable thereto. It is further intended that the invention be applicable to lighting fixtures; air conditioning, air filtering and air circulating devices; wherein provision may be made for either direct or indirect ultra-violet radiation, or both.

It is to be still further understood that any suitable means, other than that disclosed in the drawings, may be employed to removably and releasably secure the lamp sockets to the channel assembly or the lamp to the sockets. Furthermore, any translucent, transparent or other suitable means may be employed in connection with the above described devices to cut-out undesirable rays and preventing the same from reaching the object or medium to be treated.

The devices contemplated herein are intended to be operable either by conventional house current; or motor-generator sets or batteries, either stationary or in moving vehicles, such as, automobiles, airplanes, ships, etc. Furthermore, any filter or filters may be utilized as an integral or separate part of these devices to reduce or completely eliminate rays of certain specific wave lengths.

.In the accompanying drawings, there is illustrated the invention embodied in some of its practical forms but as these illustrations are primarily for purposes of disclosure it will be understood that the invention is not limited to these particular forms of structure and that it may be modified in many respects without departure ing a base having upwardly extending flanges abutting against said top, means dividing said base into substantially two raceways, a transformer on said base, electrical wiring connected to the primary of said transformer and disposed within one of said raceways, other electrical wiring connected to. the secondary of said transformer and disposed within the other of saidraceways, a pocket at each end of said base, a socket projecting from each of said Dockets, at least one of said sockets being movable, said other electrical wiring being connected to said sockets within said pockets, ray-emission means con nected to said sockets, and means for fixing said movalble socket relative to said base after said ray emission means has been connected to said sockets, said transformer housing and portions of said. flanges completing an enclosure for said transformer. 3. An electrical fixture comprising a hood, a electrical device in said hood; said device including a transformer, a supporting channel for said transformer, an upwardly-extending partition dividing said channel longitudinally into two sections, electrical wiring connected to the primary of said transformer and disposed in one of said sections, other electrical wiring connected to the secondary of said transformer and disposed in the other of said sections, lamp-holding means projecting downwardly from said channel, said other electrical wiring being connected to said lamp-holding means, ray-emission means connected to said lamp-holding means, said channel having an opening adjacent said wiring connected to the primary of said transformer to facilitate splicing of said wiring to a power line, and a window in said hood for observing the ray-emission means.

4. An electrical fixture as set forth in claim 3, said channel having a reflecting ortion disposed above said ray-emission means.

5. An electrical unit comprising a hood having a top including a housing, and adevice within said hood. said device comprising abase having upwardly-extending flanges abutting against said top, an upwardly-extending partition between said flanges dividing said base into substantially two raceways, an electrical control on said base,

electrical" wiring connected to said control and disposed within one of. said raceways, other eiectrical wiring connected to said, control and disposed within the otherof said raceways, a socket 10 at each end or said base means connecting said sockets .to said (base, said other electrical wiring being connected to said sockets, l 'ay-emisslon means connected to said sockets, means for movh! fl ne at least one of said sockets relatively to the other of said sockets, said housing and portions of said flanges completing an enclosure for said control. f

GEORGE

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