US3069537A - Lighting fixture - Google Patents

Lighting fixture Download PDF

Info

Publication number
US3069537A
US3069537A US5500A US550060A US3069537A US 3069537 A US3069537 A US 3069537A US 5500 A US5500 A US 5500A US 550060 A US550060 A US 550060A US 3069537 A US3069537 A US 3069537A
Authority
US
United States
Prior art keywords
housing
cover
ribs
fixture
light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US5500A
Inventor
David R Dayton
Albert J Michaud
Armond J Viscosi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Priority to US5500A priority Critical patent/US3069537A/en
Priority to GB44653/60A priority patent/GB930014A/en
Application granted granted Critical
Publication of US3069537A publication Critical patent/US3069537A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/03—Gas-tight or water-tight arrangements with provision for venting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F21V15/013—Housings, e.g. material or assembling of housing parts the housing being an extrusion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/107—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using hinge joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/166—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to torsion, e.g. spiral springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/20—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by toggle-action levers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F21V23/026—Fastening of transformers or ballasts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V27/00—Cable-stowing arrangements structurally associated with lighting devices, e.g. reels 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Definitions

  • This invention relates to lighting fixtures and more particularly to lighting fixtures designed primarily for outdoor installations.
  • one of the principal objects of this invention is to provide an outdoor lighting fixture which is compact and relatively inexpensive.
  • Another object of this invention is to provide an outdoor lighting fixture, the structural components of which readily lend themselves to mass production and assembly.
  • a further object of this invention is to provide an outdoor lighting fixture, the structural components of which are associated with one another in such a way that maintenance may be effected efficiently and easily.
  • the fixture comprises two main components, a base member or housing and a cover member, joined along one pair of mating longitudinal edges by a pinless hinge arrangement which facilitates both opening of the cover as well as its removal.
  • the base member is preferably an extruded aluminum piece, the outer face thereof being provided with means whereby electrical control apparatus may be attached thereto.
  • the inner face of the base member is shaped to receive a readily insertable and readily removable reflector.
  • FIGURE 1 is a front perspective View of the fixture with the hinged cover thereof opened somewhat beyondthe normal open position for clarity of illustration.
  • FIGURE 2 is a transverse sectional view of the fixture of FIGURE 1, taken along the line 2-2 of FIGURE 1, with the cover thereof shown in the closed, opened and removed positions, the latter two positions being illustr'ated in phantom.
  • FIGURE 3 is an end edge detail of the base member with the reflector seated therein.
  • the reflector is illustrated in phantom in the position it is caused to assume during insertion thereof into the base member.
  • FIGURE 4 is a fragmentary detail showing the relative disposition of the mating ends of the cover member and the base member when the cover is in the clo;ed, open and removal positions.
  • the fixture comprises a housing 2 having a reflector 4, a cover 6 and a lamp 8 mounted within the enclosure defined by the housing 2 and the cover 6.
  • the housing 2 is preferably an extruded memher of aluminum, an aluminum alloy or some similar material which is non-corrosive and serviceable under a variety of adverse weather conditions.
  • the cover 6, which is preferably, but not necessarilyv of the same material as the housing 2, is provided with a pair of channels 10 extending longitudinally thereof and parallel to one another. A readily insertable and removable window 12 is seated in the cover within the channels 10.
  • the lamp 8 is a linear light source, such as, for ex ample, the fluorescent lamp shown in the co-pending application of J. F. Waymouth et al., Serial No. 742,928, filed June 18, 1958, now Patent No. 2,961,566, issued November 22, 1960, the electrode assembly of which is shown in FIGURE 2 and identified by the reference number 9.
  • the lamp 8 may also be of the aperture type, i.e., provided with a longitudinally extending segment 11 (FIG. 2) free of fluorescent coating as shown and described in detail in the co-pending application of D. E. Spencer et al., Serial No. 825,915, filed July 9, 1959.
  • the housing 2 is provided with several bosses 14 at each end thereof, such as boss 14 in FIGURE 2 for example, to permit attachment thereto of end plates 16 by means of screws 18 or the like.
  • Each end plate 16 is provided with a pair of screened vents 20 to admit air into and to exclude insects, etc. from the enclosure defined by the housing, cover and end plates.
  • the housing 2 and the cover 6 are joined along one pair of mating longitudinal edges by a pinless hinge arrangement.
  • the mating longitudinal edge of the housing 2 is a channel 22 having an inwardly turned lip 23.
  • the mating longitudinal edge of the cover 6 comprises a hooked end 24 and a cooperating laterally extending flange 26.
  • FIGURES 2 and 4 wherein this arrangement is illustrated, in the closed position as shown in solid in FIGURE 2 the mating parts interlock as shown in FIGURE 4A. In the open position, the mating parts interlock as shown in FIGURE 4B and the cover assumes the position shown in phantom in FIGURE 2 as 60. In the position for removal of the cover, the mating parts disengage as shown in FIGURE 4C and the cover assumes the position shown in phantom in FIGURE 2 as 6b.
  • FIG. 1 When the cover is in the closed position with respect to the housing, the mating interlocking longitudinal edges are, as described above, in the position shown in FIG, URE 2 and FIGURE 4A.
  • the other pair of edges overlap as shown in FIGURE 2 and are drawn tightly closed by two or more suitable latch assemblies spaced along the top of the fixture.
  • One of these latch assemblies is shown in FIGURE 2. It comprises a catch 28 attached to the cover 6 and a cooperating hook 30 slidably disposed in a latch casing 32.
  • the hook 30 is connected to an operating lever 31 through a torsion spring 34.
  • a water-tight seal is obtained by providing the cover 6 with an internal, longitudinally extending flange 36 which is drawn up tightly against a strip of resilient insulating material 38 attached to the adjacent longitudinal edge of the housing 2. Additional water-tight scaling is obtained by providing flanges on the inside face of the end plates with strips of insulating material 40, as shown in FIGURES l and 2.
  • the lamp 8 is supported at each end in a lampholde'r 42 which is mounted on a bracket 44 attached to the housing 2.
  • a pair of wires 46 are connected to the lampholder 42 shown in FIGURE 2.
  • Another pair of wires 48 extend along a wireway, formed in the housing 2, to a corresponding lampholder at the other end of the fixture.
  • the wires 48 are retained in the wireway by a plurality of resilient clips 50 which snap onto the housing.
  • the inside face of these clips are preferably provided with a facing of resilient insulating material 52.
  • a nipple 54 fitted in an aperture provided therefor in the housing 2, provides means through which the pairs of wires 46 and 48 pass from inside the fixture, through a cable 56 and into an electrical control apparatus container 58. Cable 60 connetcts the electrical control apparatus in container 58 to a suitable source of electrical energy.
  • One of the features of the fixture of this invention is the relationship of the electrical control apparatus container 58 to the housing 2.
  • a fixture housing is fabricated in such a manner that a container for the electrical control apparatus is for-med integral therewith, in which case each housing is designed to accommodate control apparatus of a particular size and shape. Thus there is no opportunity for flexibility of design; each housing has its own control apparatus and can accommodate no other. However, such is not the case here.
  • the outer face of the housing 2 is provided with a pair of parallel, spaced, longitudinally extending ribs 62, between which container 58 may be seated.
  • the container 58 is securely retained in position by clamps 64, the body of each of which forms a strap around the container and the transverse edges of which interlock with the ribs 62.
  • clamps 64 the body of each of which forms a strap around the container and the transverse edges of which interlock with the ribs 62.
  • the ribs 62 also provide mounting means for the entire fixture, two or more mounting brackets, not shown, being readily attachable to the ribs, interlocking therewith similarly to the interlocking therewith of the clamps 64.
  • the elongated ribs 62 also provide great flexibility in the mounting of these fixtures since the mounting brackets may be attached to the ribs at any position along the entire length thereof.
  • the reflector 4- is an expensive major physical component of the fixture, made of substantially the same material and provided with a coating or finish of light-reflecting material. In accordance with recommended lighting practice, the reflector should be cleaned periodically. In the case of outdoor lighting fixtures, weathering of the reflector is an important maintenance problem. As a matter of fact, it is not uncommon for the practical useful life of the reflector to be expended long before the remainder of the fixture has outlived its usefulness; and yet when this happens, the entire fixture must be replaced. In the fixture of this invention, the reflector is a readily replaceable, relatively inexpensive component.
  • the housing 2 is preferably extruded, and shaped to the contour desired for the reflector.
  • the inside face of the housing '2 is provided with a pocket bounded on opposite sides by a longitudinally extending slotted rib 66 (FIGURES 2 and 3) and a cooperating longitudinally extending rig 68.
  • a resilient reflector 4 is positioned as shown in phantom in FIGURE 3 and snapped into position into the pocket as shown in solid in this same figure as well as in FIGURE 2, one of the longitudinal edges thereof lying within the slotted rib 66 and the other abutting the rib 68.
  • the reflector 4 is metallized aluminum Mylar bonded to a resilient plastic base laminate.
  • the transparent film on which the aluminum reflective coating is deposited any similar film may be used satisfactorily.
  • the transparent film should have substantially the same index of refraction as glass and have a high resistivity to discoloration from ultra-violet light.
  • the base laminate may be made of a number of different materials, such as for example, aluminum, sheet steel, paper products, etc., the essential requirements being that it be resilient and capable of having a metallized transparent film bonded thereto.
  • the refiective coating is disposed between the base laminate and the transparent film and thus is fully protected at all times from corrosion, weathering, etc.
  • a lighting fixture comprising: an elongated, curved housing, one face thereof having a substantially parabolic surface and provided with a pocket bordered by opposed longitudinal ribs; a curved cover, said cover in combination with said housing defining an enclosure; a linear light source mounted in said enclosure; an elongated flexible sheet insert of light-reflecting material disposed in said pocket against said parabolic surface of said housing and in light-receiving relationship with respect to said light source, said sheet insert in unflexed form being of a width greater than the space between the rib-s and when seated against the parabolic surface engaging the ribs; and a window in said cover in light-transmitting relationship with respect to said sheet insert of light-reflecting material.
  • a lighting fixture comprising: an elongated, curved housing, one face thereof having a. substantially parabolic surface and provided with a pocket bordered by opposing longitudinal ribs one of which is slotted; a curved cover, said cover in combination with said housing defining an enclosure; a linear light source mounted in said enclosure; an elongated flexible sheet insert of light-reflecting material of an unflexed width greater than the spacing between the ribs and disposed in contact with said parabolic surface or" said housing, said insert lying with one edge within the slotted portion of one rib and with the opposing edge engaging the other rib and in light-receiving relationship with respect to said light source; and a window in said cover in light-transmitting relationship with respect to said sheet insert of light-reflecting material.
  • a lighting fixture comprising: an elongated, curved housing, one face thereof having a substantially parabolic surface and provided with a pocket bordered by opposed longitudinal ribs; a curved cover, said cover in combination with said housing defining an enclosure; a linear light source mounted in said enclosure; an elongated flexible sheet insert of light-reflecting material disposed in said pocket against said parabolic surface of said housing and in light-receiving relationship with respect to said light source, said sheet insert in unflexed form being of a width greater than the space between the ribs and when seated against the parabolic surface engaging the ribs, said sheet insert of light-reflecting material comprising a metallized aluminum transparent film bonded to a fesilient base laminate; and a window in said cover in lighttransmitting relationship with respect to said sheet insert of light-reflecting material.
  • a lighting fixture comprising: an elongated, curved housing, one face thereof having a substantially parabolic surface and provided with a pocket bordered by opposed longitudinal ribs; electrical control apparatus mounted on the other face of said housing; a curved cover, said cover in combination with said housing defining an enclosure; a linear light source mounted in said enclosure; means for connecting said electrical control apparatus to said light source; an elongated flexible sheet insert of lightreflecting material disposed in said pocket against said parabolic surface of said housing and in light-receiving relationship with respect to said light source, said sheet insert in unflexed form being of a width greater than the space btween the ribs and when seated against the parabolic surface engaging the ribs; and a window in said cover in light-transmitting relationship with respect to said sheet insert of light-reflecting material.
  • a lighting fixture comprising: an elongated, curved housing, one face thereof having a substantially parabolic surface and provided with a pocket bordered by opposed longitudinal ribs; a pair of spaced, longitudinally extending ribs on the other face of said housing; electrical control apparatus disposed between said ribs and attached thereto; a curved cover, said cover in combination with said housing defining an enclosure; a linear light source mounted in said enclosure; means for connecting said electrical control apparatus to said light source; an elongated fiexible sheet insert of light reflecting material disposed in said pocket against said parabolic surface of said housing and in light-receiving relationship with respect to said light source, said sheet insert in unflexed form being of a width greater than the space between the ribs and when seated against the parabolic surface engaging the ribs; and a window in said cover in lighttransmitting relationship with respect to said sheet insert of light-reflecting material.
  • a lighting fixture comprising: an elongated, curved housing, one face thereof having a substantially parabolic surface and provided with a pocket bordered by opposed longitudinal ribs; a curved, extruded cover having a window frame formed integral therewith, said cover in combination with said housing defining an enclosure; a linear light source mounted in said enclosure; an elongated,
  • said sheet insert in unflexed form being of a width greater than the space between the ribs and when seated against the parabolic surface engaging the ribs; and a window in said frame in light-transmitting relationship with respect to said sheet insert of lightrefiecting material.

Description

Dec. 18, 1962 D. R. DAYTON ETAL LIGHTING FIXTURE Filed Jan. 29, 1960 DAVID R. DAYTON ALBERT J. MICHAUD ARMAND J. VISCOSI INVENTORS W a ATTORNEY United States Patent Office 3,069,537 Patented Dec. 18, 1962 3,069,537 LIGHTING FIXTURE David R. Dayton, Beverly, Albert J. Michaud, Salem, and
Armond J. Viscosi, Methuen, Mass, assignors to Sylvania Electric Products Inc, a corporation of Delaware Filed Jan. 29, 1960, Ser. No. 5,590 6 Claims. (CI. 240-5111) This invention relates to lighting fixtures and more particularly to lighting fixtures designed primarily for outdoor installations.
In the design and manufacture of lighting fixtures for outdoor installations, a number of problems are confronted which normally do not arise in the design and manufacture of lightIng fixtures for indoor use. Not the least of these problems is the protection of the lighting unit from the weather and other environmental conditions. Ways and means for solving these problems have been developed. However, it is significant to note that these solutions usually involve the use of structural components which are both expensive and cumbersome. In addition thereto, maintenance has been both difiicult and expensive.
In view of the foregoing, one of the principal objects of this invention is to provide an outdoor lighting fixture which is compact and relatively inexpensive.
Another object of this invention is to provide an outdoor lighting fixture, the structural components of which readily lend themselves to mass production and assembly.
A further object of this invention is to provide an outdoor lighting fixture, the structural components of which are associated with one another in such a way that maintenance may be effected efficiently and easily.
Further objects, advantages and features will be apparent to those skilled in the art from the description below of a specific embodiment of the invention.
In accordance with the principles of this invention, the fixture comprises two main components, a base member or housing and a cover member, joined along one pair of mating longitudinal edges by a pinless hinge arrangement which facilitates both opening of the cover as well as its removal. The base member is preferably an extruded aluminum piece, the outer face thereof being provided with means whereby electrical control apparatus may be attached thereto. The inner face of the base member is shaped to receive a readily insertable and readily removable reflector.
In the specific embodiment of the invention illustrated in the accompanying drawing, FIGURE 1 is a front perspective View of the fixture with the hinged cover thereof opened somewhat beyondthe normal open position for clarity of illustration.
FIGURE 2 is a transverse sectional view of the fixture of FIGURE 1, taken along the line 2-2 of FIGURE 1, with the cover thereof shown in the closed, opened and removed positions, the latter two positions being illustr'ated in phantom.
FIGURE 3 is an end edge detail of the base member with the reflector seated therein. The reflector is illustrated in phantom in the position it is caused to assume during insertion thereof into the base member.
FIGURE 4 is a fragmentary detail showing the relative disposition of the mating ends of the cover member and the base member when the cover is in the clo;ed, open and removal positions.
Referring now to the drawing, particularly FIGURES 1 and 2 thereof, the fixture comprises a housing 2 having a reflector 4, a cover 6 and a lamp 8 mounted within the enclosure defined by the housing 2 and the cover 6. Because of the economy and speed with which it can be produced, the housing 2 is preferably an extruded memher of aluminum, an aluminum alloy or some similar material which is non-corrosive and serviceable under a variety of adverse weather conditions. The cover 6, which is preferably, but not necessarilyv of the same material as the housing 2, is provided with a pair of channels 10 extending longitudinally thereof and parallel to one another. A readily insertable and removable window 12 is seated in the cover within the channels 10. The lamp 8 is a linear light source, such as, for ex ample, the fluorescent lamp shown in the co-pending application of J. F. Waymouth et al., Serial No. 742,928, filed June 18, 1958, now Patent No. 2,961,566, issued November 22, 1960, the electrode assembly of which is shown in FIGURE 2 and identified by the reference number 9. The lamp 8 may also be of the aperture type, i.e., provided with a longitudinally extending segment 11 (FIG. 2) free of fluorescent coating as shown and described in detail in the co-pending application of D. E. Spencer et al., Serial No. 825,915, filed July 9, 1959. The housing 2 is provided with several bosses 14 at each end thereof, such as boss 14 in FIGURE 2 for example, to permit attachment thereto of end plates 16 by means of screws 18 or the like. Each end plate 16 is provided with a pair of screened vents 20 to admit air into and to exclude insects, etc. from the enclosure defined by the housing, cover and end plates.
As was mentioned above, the housing 2 and the cover 6 are joined along one pair of mating longitudinal edges by a pinless hinge arrangement. The mating longitudinal edge of the housing 2 is a channel 22 having an inwardly turned lip 23. The mating longitudinal edge of the cover 6 comprises a hooked end 24 and a cooperating laterally extending flange 26. As will be noted from an examination of FIGURES 2 and 4 wherein this arrangement is illustrated, in the closed position as shown in solid in FIGURE 2 the mating parts interlock as shown in FIGURE 4A. In the open position, the mating parts interlock as shown in FIGURE 4B and the cover assumes the position shown in phantom in FIGURE 2 as 60. In the position for removal of the cover, the mating parts disengage as shown in FIGURE 4C and the cover assumes the position shown in phantom in FIGURE 2 as 6b.
When the cover is in the closed position with respect to the housing, the mating interlocking longitudinal edges are, as described above, in the position shown in FIG, URE 2 and FIGURE 4A. The other pair of edges overlap as shown in FIGURE 2 and are drawn tightly closed by two or more suitable latch assemblies spaced along the top of the fixture. One of these latch assemblies is shown in FIGURE 2. It comprises a catch 28 attached to the cover 6 and a cooperating hook 30 slidably disposed in a latch casing 32. The hook 30 is connected to an operating lever 31 through a torsion spring 34. A water-tight seal is obtained by providing the cover 6 with an internal, longitudinally extending flange 36 which is drawn up tightly against a strip of resilient insulating material 38 attached to the adjacent longitudinal edge of the housing 2. Additional water-tight scaling is obtained by providing flanges on the inside face of the end plates with strips of insulating material 40, as shown in FIGURES l and 2. V
The lamp 8 is supported at each end in a lampholde'r 42 which is mounted on a bracket 44 attached to the housing 2. A pair of wires 46 are connected to the lampholder 42 shown in FIGURE 2. Another pair of wires 48 extend along a wireway, formed in the housing 2, to a corresponding lampholder at the other end of the fixture. The wires 48 are retained in the wireway by a plurality of resilient clips 50 which snap onto the housing. The inside face of these clips are preferably provided with a facing of resilient insulating material 52.
A nipple 54, fitted in an aperture provided therefor in the housing 2, provides means through which the pairs of wires 46 and 48 pass from inside the fixture, through a cable 56 and into an electrical control apparatus container 58. Cable 60 connetcts the electrical control apparatus in container 58 to a suitable source of electrical energy.
One of the features of the fixture of this invention is the relationship of the electrical control apparatus container 58 to the housing 2. Usually a fixture housing is fabricated in such a manner that a container for the electrical control apparatus is for-med integral therewith, in which case each housing is designed to accommodate control apparatus of a particular size and shape. Thus there is no opportunity for flexibility of design; each housing has its own control apparatus and can accommodate no other. However, such is not the case here. In the fixture of this invention, the outer face of the housing 2 is provided with a pair of parallel, spaced, longitudinally extending ribs 62, between which container 58 may be seated. The container 58 is securely retained in position by clamps 64, the body of each of which forms a strap around the container and the transverse edges of which interlock with the ribs 62. Thus the housing of the fixture of this invention may be used with electrical control apparatus containers which vary considerably in length and height and the container may be aflixed to the housing at any position along the longitudinal axis thereof. The ribs 62 also provide mounting means for the entire fixture, two or more mounting brackets, not shown, being readily attachable to the ribs, interlocking therewith similarly to the interlocking therewith of the clamps 64. Thus the elongated ribs 62 also provide great flexibility in the mounting of these fixtures since the mounting brackets may be attached to the ribs at any position along the entire length thereof.
Another feature of this invention is the reflector 4-. Usually, in fluorescetnt lighting fixtures, the reflector is an expensive major physical component of the fixture, made of substantially the same material and provided with a coating or finish of light-reflecting material. In accordance with recommended lighting practice, the reflector should be cleaned periodically. In the case of outdoor lighting fixtures, weathering of the reflector is an important maintenance problem. As a matter of fact, it is not uncommon for the practical useful life of the reflector to be expended long before the remainder of the fixture has outlived its usefulness; and yet when this happens, the entire fixture must be replaced. In the fixture of this invention, the reflector is a readily replaceable, relatively inexpensive component. As noted above, the housing 2 is preferably extruded, and shaped to the contour desired for the reflector. The inside face of the housing '2 is provided with a pocket bounded on opposite sides by a longitudinally extending slotted rib 66 (FIGURES 2 and 3) and a cooperating longitudinally extending rig 68. A resilient reflector 4 is positioned as shown in phantom in FIGURE 3 and snapped into position into the pocket as shown in solid in this same figure as well as in FIGURE 2, one of the longitudinal edges thereof lying within the slotted rib 66 and the other abutting the rib 68. In the specific embodiment of the invention, the reflector 4 is metallized aluminum Mylar bonded to a resilient plastic base laminate. Although Mylar, a polyester film, is preferred as the transparent film on which the aluminum reflective coating is deposited, any similar film may be used satisfactorily. For best results, the transparent film should have substantially the same index of refraction as glass and have a high resistivity to discoloration from ultra-violet light. Similarly, the base laminate may be made of a number of different materials, such as for example, aluminum, sheet steel, paper products, etc., the essential requirements being that it be resilient and capable of having a metallized transparent film bonded thereto. One of the big advantages of a reflector of this type is that the refiective coating is disposed between the base laminate and the transparent film and thus is fully protected at all times from corrosion, weathering, etc.
What we claim is:
1. A lighting fixture comprising: an elongated, curved housing, one face thereof having a substantially parabolic surface and provided with a pocket bordered by opposed longitudinal ribs; a curved cover, said cover in combination with said housing defining an enclosure; a linear light source mounted in said enclosure; an elongated flexible sheet insert of light-reflecting material disposed in said pocket against said parabolic surface of said housing and in light-receiving relationship with respect to said light source, said sheet insert in unflexed form being of a width greater than the space between the rib-s and when seated against the parabolic surface engaging the ribs; and a window in said cover in light-transmitting relationship with respect to said sheet insert of light-reflecting material.
2. A lighting fixture comprising: an elongated, curved housing, one face thereof having a. substantially parabolic surface and provided with a pocket bordered by opposing longitudinal ribs one of which is slotted; a curved cover, said cover in combination with said housing defining an enclosure; a linear light source mounted in said enclosure; an elongated flexible sheet insert of light-reflecting material of an unflexed width greater than the spacing between the ribs and disposed in contact with said parabolic surface or" said housing, said insert lying with one edge within the slotted portion of one rib and with the opposing edge engaging the other rib and in light-receiving relationship with respect to said light source; and a window in said cover in light-transmitting relationship with respect to said sheet insert of light-reflecting material.
3. A lighting fixture comprising: an elongated, curved housing, one face thereof having a substantially parabolic surface and provided with a pocket bordered by opposed longitudinal ribs; a curved cover, said cover in combination with said housing defining an enclosure; a linear light source mounted in said enclosure; an elongated flexible sheet insert of light-reflecting material disposed in said pocket against said parabolic surface of said housing and in light-receiving relationship with respect to said light source, said sheet insert in unflexed form being of a width greater than the space between the ribs and when seated against the parabolic surface engaging the ribs, said sheet insert of light-reflecting material comprising a metallized aluminum transparent film bonded to a fesilient base laminate; and a window in said cover in lighttransmitting relationship with respect to said sheet insert of light-reflecting material.
4. A lighting fixture comprising: an elongated, curved housing, one face thereof having a substantially parabolic surface and provided with a pocket bordered by opposed longitudinal ribs; electrical control apparatus mounted on the other face of said housing; a curved cover, said cover in combination with said housing defining an enclosure; a linear light source mounted in said enclosure; means for connecting said electrical control apparatus to said light source; an elongated flexible sheet insert of lightreflecting material disposed in said pocket against said parabolic surface of said housing and in light-receiving relationship with respect to said light source, said sheet insert in unflexed form being of a width greater than the space btween the ribs and when seated against the parabolic surface engaging the ribs; and a window in said cover in light-transmitting relationship with respect to said sheet insert of light-reflecting material.
5. A lighting fixture comprising: an elongated, curved housing, one face thereof having a substantially parabolic surface and provided with a pocket bordered by opposed longitudinal ribs; a pair of spaced, longitudinally extending ribs on the other face of said housing; electrical control apparatus disposed between said ribs and attached thereto; a curved cover, said cover in combination with said housing defining an enclosure; a linear light source mounted in said enclosure; means for connecting said electrical control apparatus to said light source; an elongated fiexible sheet insert of light reflecting material disposed in said pocket against said parabolic surface of said housing and in light-receiving relationship with respect to said light source, said sheet insert in unflexed form being of a width greater than the space between the ribs and when seated against the parabolic surface engaging the ribs; and a window in said cover in lighttransmitting relationship with respect to said sheet insert of light-reflecting material.
6. A lighting fixture comprising: an elongated, curved housing, one face thereof having a substantially parabolic surface and provided with a pocket bordered by opposed longitudinal ribs; a curved, extruded cover having a window frame formed integral therewith, said cover in combination with said housing defining an enclosure; a linear light source mounted in said enclosure; an elongated,
flexible sheet insert of light-reflecting material disposed in said pocket against said parabolic surface of said housing and in light-receiving relationship With respect to said light source, said sheet insert in unflexed form being of a width greater than the space between the ribs and when seated against the parabolic surface engaging the ribs; and a window in said frame in light-transmitting relationship with respect to said sheet insert of lightrefiecting material.
References Cited in the file of this patent UNITED STATES PATENTS 683,164 Wideen Sept. 24, 1901 860,036 Kerby July 16, 1907 2,375,669 McKinney May 8, 1945 2,610,289 Brainerd Sept. 9, 1952 2,825,798 Zingone Mar. 4, 1958 2,916,609 Barchman et al Dec. 8, 1959 2,923,429 Schneider Feb. 2, 1960
US5500A 1960-01-29 1960-01-29 Lighting fixture Expired - Lifetime US3069537A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US5500A US3069537A (en) 1960-01-29 1960-01-29 Lighting fixture
GB44653/60A GB930014A (en) 1960-01-29 1960-12-29 Lighting fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5500A US3069537A (en) 1960-01-29 1960-01-29 Lighting fixture

Publications (1)

Publication Number Publication Date
US3069537A true US3069537A (en) 1962-12-18

Family

ID=21716191

Family Applications (1)

Application Number Title Priority Date Filing Date
US5500A Expired - Lifetime US3069537A (en) 1960-01-29 1960-01-29 Lighting fixture

Country Status (2)

Country Link
US (1) US3069537A (en)
GB (1) GB930014A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263072A (en) * 1963-11-29 1966-07-26 Smithcraft Corp Recessed light fixture
EP0271632A2 (en) * 1986-12-17 1988-06-22 ADO GARDINENWERKE GmbH & Co. Curtain lighting
EP1517081A2 (en) * 2003-09-20 2005-03-23 Peter Broll CNC-Metalltechnik Luminaire for tunnels
FR2874680A1 (en) * 2004-08-24 2006-03-03 Ceit Entpr S Soc Par Actions S Lamp for illuminating an outside signalling or indicator panel, e.g. on railways, has foam block and outlet orifice to remove condensation and moisture
WO2008125183A1 (en) * 2007-03-28 2008-10-23 Agabekov S.A. Versatile asymmetric light fixture
US20140307449A1 (en) * 2013-04-10 2014-10-16 L&Kang, Inc Reflection Cap for Lamp

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3361289A (en) * 1964-10-12 1968-01-02 Sylvania Electric Prod Weatherproof hinge
US4412276A (en) * 1981-12-07 1983-10-25 Polaroid Corporation Strobe reflector assembly

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US683164A (en) * 1900-04-27 1901-09-24 Knut C Wideen Curved reflector.
US860036A (en) * 1906-11-26 1907-07-16 Us Headlight Company Electric-arc headlight.
US2375669A (en) * 1943-09-17 1945-05-08 Gen Motors Corp Reflector
US2610289A (en) * 1949-02-23 1952-09-09 Arthur A Brainerd Enclosed internally heated electric discharge lamp luminaire for variable temperature service
US2825798A (en) * 1956-05-14 1958-03-04 Neo Ray Products Inc Fluorescent lighting fixture
US2916609A (en) * 1954-07-30 1959-12-08 Schneider & Co Dr Ing Lights intended for use in the open air
US2923429A (en) * 1957-10-15 1960-02-02 Schneider & Co Dr Ing Outdoor lighting fixture for fluorescent lamps

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US683164A (en) * 1900-04-27 1901-09-24 Knut C Wideen Curved reflector.
US860036A (en) * 1906-11-26 1907-07-16 Us Headlight Company Electric-arc headlight.
US2375669A (en) * 1943-09-17 1945-05-08 Gen Motors Corp Reflector
US2610289A (en) * 1949-02-23 1952-09-09 Arthur A Brainerd Enclosed internally heated electric discharge lamp luminaire for variable temperature service
US2916609A (en) * 1954-07-30 1959-12-08 Schneider & Co Dr Ing Lights intended for use in the open air
US2825798A (en) * 1956-05-14 1958-03-04 Neo Ray Products Inc Fluorescent lighting fixture
US2923429A (en) * 1957-10-15 1960-02-02 Schneider & Co Dr Ing Outdoor lighting fixture for fluorescent lamps

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263072A (en) * 1963-11-29 1966-07-26 Smithcraft Corp Recessed light fixture
EP0271632A2 (en) * 1986-12-17 1988-06-22 ADO GARDINENWERKE GmbH & Co. Curtain lighting
EP0271632A3 (en) * 1986-12-17 1989-10-18 Hans Theo Rottger Curtain lighting
EP1517081A2 (en) * 2003-09-20 2005-03-23 Peter Broll CNC-Metalltechnik Luminaire for tunnels
EP1517081A3 (en) * 2003-09-20 2007-12-12 Peter Broll CNC-Metalltechnik Luminaire for tunnels
FR2874680A1 (en) * 2004-08-24 2006-03-03 Ceit Entpr S Soc Par Actions S Lamp for illuminating an outside signalling or indicator panel, e.g. on railways, has foam block and outlet orifice to remove condensation and moisture
WO2008125183A1 (en) * 2007-03-28 2008-10-23 Agabekov S.A. Versatile asymmetric light fixture
US20140307449A1 (en) * 2013-04-10 2014-10-16 L&Kang, Inc Reflection Cap for Lamp

Also Published As

Publication number Publication date
GB930014A (en) 1963-07-03

Similar Documents

Publication Publication Date Title
US3192379A (en) Swimming pool lighting fixture
US5716123A (en) Elongated light tube
US3078366A (en) Luminaire
US4388677A (en) Recessed lighting unit
US3790774A (en) Fluorescent luminaire
US4566057A (en) Recessed lighting housing
US3069537A (en) Lighting fixture
US2259151A (en) Support for illuminating ware
US3209142A (en) Luminaire
US3328578A (en) Trough-shaped luminaire with housing
US3211905A (en) Luminaire
US4277820A (en) Method and apparatus for converting a ceiling light fixture having a plurality of fluorescent lamps into a single lamp, or two lamp, fixture
US2525315A (en) Lighting fixture
US2647985A (en) Illumination fixture and louvers therefor
US3210538A (en) Luminaire
US2596634A (en) Direct lighting fixture
US2262157A (en) Enclosed direct lighting luminaire
US6425681B1 (en) Light ramp
US3167258A (en) Light fixture
US4035632A (en) Fixture system
US2916609A (en) Lights intended for use in the open air
US2839672A (en) Tunnel lighting fixture
US3209137A (en) Luminous ceiling
US3350554A (en) Floodlight
US3361289A (en) Weatherproof hinge