With Ventilating Or Cooling Patents (Class 362/345)
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Patent number: 5207505Abstract: A light source device houses a lamp such as a mercury discharge tube for generating a high temperature heat, and a reflective optical member such as an elliptic, mirror surrounding the lamp, in a lamp case. When the lamp is forcibly cooled by air, a device for substantially uniformly heating or heat-insulating a reflection surface of the reflective optical member is provided to prevent overcooling of the reflective optical member.Type: GrantFiled: September 3, 1991Date of Patent: May 4, 1993Assignee: Nikon CorporationInventors: Tsuyoshi Naraki, Haruo Ozawa, Takashi Mori, Jun Nagatsuka
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Patent number: 5183328Abstract: In an industrial luminaire having an acrylic reflector for directing light output in a desired pattern, and in which a high wattage light source is utilized, a cooling sleeve constructed of a light transmissive material is mounted in surrounding proximity to the light source. The cooling sleeve is cylindrically shaped with at least one opening through which heat generated by the light source can be channeled away from the acrylic reflector in a chimney like manner. The cooling effect of the sleeve is further supplemented by the ability to pass a flow of air within the reflector, around the cooling sleeve, and through a space formed between the reflector and the cooling sleeve. A venting arrangement can be formed in the housing or other support structure on which the reflector, light source and cooling sleeve are mounted.Type: GrantFiled: December 9, 1991Date of Patent: February 2, 1993Assignee: General Electric CompanyInventor: Mitchell M. Osteen
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Patent number: 5138541Abstract: In a lamp (10) equipped with a cold-light reflector (18) behind the cold-light reflector (18) a further reflector (32) is provided which reflects the infrared radiation onto a housing wall (14) of the lamp (10).Type: GrantFiled: January 6, 1992Date of Patent: August 11, 1992Assignee: NAFA-Light Kurt MaurerInventor: Tetsuhiro Kano
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Patent number: 5130913Abstract: Lighting device comprising a lighting bulb arranged inside a reflector produced from a transparent material and possessing a selective reflecting surface (4) capable of reflecting the visible radiation coming from the bulb (2), while allowing the heat radiation to pass through it, while on the outside of this reflector there is a reflecting surface (6, 8) for the heat radiation passing through the reflector (1), the device being characterized in that the reflecting surface (8) for the heat radiation is formed on a supporting piece arranged outside the reflector.Type: GrantFiled: May 14, 1991Date of Patent: July 14, 1992Inventor: Francis David
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Patent number: 5113320Abstract: A motor vehicle headlamp assembly includes a headlamp having a light source and a reflector. A lens is bonded or otherwise fixed to the perimeter of the reflector. A surface is provided having a common radius centered on a point situated forward of the reflector which defines a segment of a first spherical surface. A fixture adapted to be mounted to a motor vehicle includes a similar spherical surface adapted to nest with the first spherical surface. The surface of the fixture and the surface of the headlamp are adjustable with respect to each other to permit alignment of light emitted from the light source to a selected direction. A fastener passes through a spherical washer and an opening in the fixture and is spherically movable within the opening over a range of positions to permit alignment of the headlamp with respect to the fixture.The first spherical surface can be provided on a rear surface of the housing or on a housing bracket coupled to the housing.Type: GrantFiled: August 16, 1990Date of Patent: May 12, 1992Assignee: Robart Enterprises, Inc.Inventor: Bartley A. Haydu
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Patent number: 5099403Abstract: A backlight for a liquid crystal display which includes a reflector having a back wall and forwardly-extending peripheral walls and a light source mounted in the back wall is provided with a ventilation port or louvers in at least one of the peripheral walls to permit convection cooling of the backlight and the liquid crystal display by moving air.Type: GrantFiled: September 14, 1990Date of Patent: March 24, 1992Assignee: Gilbarco, Inc.Inventor: Winfield F. Turner
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Patent number: 5097400Abstract: A spring balanced lamp is disclosed which includes a base, a lamp arm support pivotally connected to the base, a first pair of hollow tubular arms pivotally connected at one end to the arm support and at their opposite ends to a second pair of hollow tubular arms. At least one counterbalance spring is connected to the arms to maintain the arms in a plurality of stable upright positions to which they may be moved. A lamp head assembly is pivotally connected to the second pair of arms and includes a support neck pivotally connected to the arms and a support ring pivotally mounted on the neck for rotation on an axis which is generally perpendicular to the axis of the pivotal connection of the neck to the arms. A perforated reflector and a translucent shade are mounted on the ring of the reflector.Type: GrantFiled: March 29, 1991Date of Patent: March 17, 1992Assignee: Luxo Lamp CorporationInventor: Sava Cvek
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Patent number: 5091835Abstract: A high intensity lamp is provided for use in studio and theatrical lighting applications and the like, wherein the lamp includes an improved ventilated lamp housing for enhanced convective air flow to dissipate generated heat energy. The lamp housing has a generally cylindrical shape with a high intensity lamp bulb supported therein and a forward open end. The lamp housing is constructed from a plurality of inner and outer rings assembled in a concentric and axially overlapping relation to define a sequence of radially and axially open flow paths of expanding cross-sectional size to induce an enhanced convective cooling air flow from the interior to the exterior of the lamp housing.Type: GrantFiled: February 25, 1991Date of Patent: February 25, 1992Assignee: Leonetti CompanyInventors: Jack H. Malek, John L. Leonetti, Gilbert Rosales
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Patent number: 5041949Abstract: A vehicle headlamp ventilation system includes a dust-resistant maze box. The maze box comprises a pair of rubber hose connections provided on opposite ends of a box, the box having an opening portion at one surface thereof, and ribs extending from the bottom surface of the box to the opening portion and which define a zig-zag flow path inside the box to prolong a spatial distance between the pair of rubber hose connections. The ribs are provided interiorly of the box, and the opening portion is closed by a cover which contacts the upper edges of the ribs. The dust-resistant maze box may also be formed integrally with a housing of a vehicle headlamp with the bottom surface of the box common with the housing of the headlamp.Type: GrantFiled: May 9, 1990Date of Patent: August 20, 1991Assignee: Stanley Electric Co., Ltd.Inventors: Takashi Hirota, Masaji Sekido
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Patent number: 5010453Abstract: A ventilation system for a replaceable bulb vehicle lamp assembly that has a vent device mounted on a tubular projection formed on the outer surface of the reflector housing and having an air outlet opening positioned closely adjacent a channel formed in the outer surface of said reflector in a manner so as to prevent splash water from entering the interior of the lamp assembly.Type: GrantFiled: August 28, 1990Date of Patent: April 23, 1991Assignee: General Motors CorporationInventor: Sylvan R. Ketterman
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Patent number: 5003446Abstract: A headlamp having a mounting hole formed in the curved outer surface of a reflector housing along an axis which is generally parallel to the optical axis of the housing and which is adapted to receive a push-in type vent device formed with a skirt having a configuration that provides a good sealing relationship with the curved outer surface of the housing.Type: GrantFiled: August 31, 1990Date of Patent: March 26, 1991Assignee: General Motors CorporationInventors: William E. Nagengast, James S. Mellinger, David R. McMahan
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Patent number: 4985815Abstract: A reflector for use in combination with an intense light source, such as a light source for a projection liquid crystal display. The reflector comprises a reflecting member for reflecting light emitted by the light source, a cooling frame having a hollow receiving the reflecting member therein, externally provided with a plurality of heat radiating fins and having a shape substantially conforming to the external shape of the reflecting member, and heat conductive powder filling a space of a substantially uniform width formed between the reflecting member and the inner surface of the hollow of the cooling frame. The heat conductive powder keeps the reflecting member and the cooling frame in close thermal contact with each other so that heat applied to the reflecting member by the light source may be transferred efficiently to the cooling frame to suppress temperature rise in the reflecting member.Type: GrantFiled: April 24, 1990Date of Patent: January 15, 1991Assignee: Pioneer Electronic CorporationInventor: Nobuyuki Endo
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Patent number: 4949232Abstract: A lighting device for illuminating exhibit, display and work surfaces with a substantially uniform wash of light. The device includes an elongated molded plastic housing having a front opening, a high intensity electric lamp tube positioned centrally within the housing, and an elongated concave metallic light reflector within the housing extending over the length thereof and positioned between the electric lamp and the rear of the housing to reflect light from the lamp outwardly through the front opening of the housing. The reflector has edge portions along its length impinging upon the edges of the housing along its length at its front opening for supporting the reflector.Type: GrantFiled: December 11, 1989Date of Patent: August 14, 1990Inventor: Bernard Safyan
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Patent number: 4937701Abstract: A safety device for burning candles including an outer vessel that holds a supply of water, an inner reflector cantainer that holds a small quantity of water, and a reversible footed candle holder that can be selectively positioned within the reflector to support candles of different sizes. the device provides cooling for the sidewall and base of the reflector to minimize the fire hazard associated with burning candles. One end of the reversible holder accommodates a candle while the other end provides a recess which is filled with cooling water to control the high heat level present when the candle burns to the bottom. An insert candle holder is also provided to allow the burning of small birthday-type candles.Type: GrantFiled: May 8, 1989Date of Patent: June 26, 1990Inventor: Virgil C. Schroder
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Patent number: 4926293Abstract: The present invention relates to an apparatus for illuminating and for collecting air which is contaminated by a certain substance in the adjacent area of the apparatus. The latter includes a reflector defining an internal cavity in which is mounted a light source. A conduit is mounted to the reflector and communicates with the internal cavity thereof. A blower unit is mounted within the reflector for drawing contaminated air and expelling it through the conduit. Advantageously, a filter element is located within the conduit to remove the contaminant from the air mass passing through the conduit.Type: GrantFiled: February 1, 1989Date of Patent: May 15, 1990Inventor: Mounir G. Saba
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Patent number: 4905132Abstract: A light fixture having a flanged upper housing, a support arm on the housing, and a reflector below the upper housing designed to dissipate heat. The reflector has an upper planar surface that fits within the flange of the upper housing. The upper planar surface has a peripheral opening extending from the edge of the upper planar surface toward the center of the upper planar surface at the side of the upper planar surface that is adjacent the support arm. An enclosure box may be placed over the peripheral opening and attached to an enclosure plate that is located at the opening of the support arm into the housing.Type: GrantFiled: December 22, 1988Date of Patent: February 27, 1990Assignee: Regent Lighting CorporationInventors: Santiago Singarayar, Robert M. Parker
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Patent number: 4885668Abstract: A flashlight reflector assembly including the substantially parabolic reflector having on one surface a reflectorized material, having a hole through its center as its converging end, and a plurality of support ribs extending from the backside of the reflector wherein a stainless steel heat shield is press fit into the back side of the reflector for protecting the reflector from over temperature conditions by reflecting heat back into the lamp and by conducting heat away from the converting portion of the reflector outward to the plurality of pins located behind the reflector reflecting surface.Type: GrantFiled: June 17, 1988Date of Patent: December 5, 1989Assignee: Mag Instrument, Inc.Inventors: Anthony Maglica, Ralph E. Johnson
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Patent number: 4882667Abstract: A housing for halogen lamps includes an extruded tubular segment with an axial bore, a lamp socket at one end of the bore and at least one pair of opposed longitudinal ventilation slots opening into the bore. The ventilation slots are shielded by an internal baffle which allows air flow across the bore but closes the interior of the housing to view through the slots. A power transformer unit may be included in the bore between the ventilation slots.Type: GrantFiled: May 20, 1988Date of Patent: November 21, 1989Inventor: Maer Skegin
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Patent number: 4862337Abstract: Herein disclosed is an automotive headlamp assembly of a so-called ventilation type. The assembly comprises a body structure having an open chamber formed therein, a lens attached to the body structure to cover the open chamber thereby to form in the body structure an enclosed chamber, an electric bulb arranged in the enclosed chamber, and first and second pipe members each having on end projected into the enclosed chamber and the other end exposed to the atmosphere. The other end of the second pipe member is so constructed and arranged that when a certain air flow passes through the other end, a negative pressure is produced around the same.Type: GrantFiled: February 10, 1988Date of Patent: August 29, 1989Assignee: Koito Seisakusho Co., Ltd.Inventors: Hirohiko Ohshio, Hiroyuki Makita, Hidehiko Nagasawa, Yoshiki Kurosawa, Yoshinobu Koyanagi
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Patent number: 4858089Abstract: A lighting fixture, e.g., lamp holder, to allow fluorescent and other non-incandescent lamps to be operated from incandescent sockets or from line voltage, with satisfactory heat dissipation, even at higher wattages. The fixture is structured to cause air to circulate through the holder so as to dissipate heat generated during operation of a lamp in the fixture. A radiative heat dissipator may also be provided to improve cooling still more.Type: GrantFiled: December 2, 1987Date of Patent: August 15, 1989Assignee: Eastrock Technology, Inc.Inventor: Michael S. Pietro
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Patent number: 4849865Abstract: A replaceable bulb headlamp of a rectangular configuration that includes an elongated passage along one side edge of the headlamp and a second elongated passage along the bottom edge of the headlamp, with each passage being located immediately behind and in line with the sealant channel for the lens and serving to communicate the interior of the headlamp with the atmosphere.Type: GrantFiled: December 16, 1988Date of Patent: July 18, 1989Assignee: General Motors CorporationInventor: Paul D. Van Duyn
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Patent number: 4833572Abstract: A ventilation system for a replaceable bulb headlamp in which the reflector member is formed with at least two slots in line with and behind the sealant channel and each slot is adapted to slidingly receive a vent device which establishes a labyrinth-type flow path for air to enter and exit from the interior of the headlamp.Type: GrantFiled: August 29, 1988Date of Patent: May 23, 1989Assignee: General Motors CorporationInventors: William E. Nagengast, John M. Luallin
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Patent number: 4829411Abstract: The present invention relates to an apparatus for illuminating and for collecting air which is contaminated by a certain substance in the adjacent area of the apparatus. The latter includes a reflector defining an internal cavity in which is mounted a light source. A conduit is mounted to the reflector and communicates with the internal cavity thereof. A blower unit is mounted within the reflector and is controlled by a switch responsive to the contaminant present in the air wherein when the concentration of contaminant exceeds a predetermined level, the switch activates the blower unit which draws contaminated air and expels it through the conduit.Type: GrantFiled: January 6, 1988Date of Patent: May 9, 1989Inventor: Mounir G. Saba
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Patent number: 4814959Abstract: A motor vehicle headlight module is provided which is compact in design having a plastic reflector with a protruding rear portion forming a chamber from which a lighting capsule extends. A heat shield of thermal insulative material is disposed above the capsule and in spaced relation with the capsule and reflector to inhibit the reflector from reaching its heat deflection temperature.Type: GrantFiled: February 25, 1988Date of Patent: March 21, 1989Assignee: GTE Products CorporationInventors: Kirti B. Chakrabarti, George J. English
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Patent number: 4809144Abstract: A vehicle headlamp in which an elongated tubular container having small openings in front and rear ends thereof and filled therein with a drying agent extends through the lamp housing. The size of the small opening at the end of the container which is interior of the lamp housing is smaller than the size of the small opening in the end of the container which is exterior of the lamp housing.Type: GrantFiled: December 2, 1987Date of Patent: February 28, 1989Assignee: Stanley Electric Co., Ltd.Inventor: Tooru Suzuki
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Patent number: 4747032Abstract: An air-vent headlight includes an air outlet device formed of plastic and provided on the underside of the inner reflector and an air inlet device, also of plastic, and arranged on the upper side of the outer reflector. The air outlet device has a horizontal outlet tube the front side of which is inclined towards the center of the headlight. The air inlet device has an inlet tube extending opposite to the direction of travel of the vehicle.Type: GrantFiled: March 10, 1987Date of Patent: May 24, 1988Assignee: Robert Bosch GmbHInventor: Walter Weber
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Patent number: 4739458Abstract: A vehicle lamp device comprises one thin board-like substrate having an aperture for communicating air from inside the lamp device to the outside of the lamp device, and another thin board-like substrate having a port for air communication. The two substrates are closely adjacent each other and define an air passage therebetween. The air passage is filled with desiccants and communicates air with the interior of the lamp device. The two substrates are located and mounted within the range of receiving sufficient heat from a bulb mounted to a resin reflector.Type: GrantFiled: April 17, 1987Date of Patent: April 19, 1988Assignee: Stanley Electric Co., Ltd.Inventors: Takeshi Yamayoshi, Takeo Ichihara
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Patent number: 4704664Abstract: A recessed lamp reflector has an integrally formed trim ring and fluorescent tube receptacles on opposite sides of an upper portion of the reflector. Fluorescent tubes extend across and downward, in the reflector, crossing at a central point within an upper portion of the reflector. Ballasts are mounted on an upper surface of the reflector between lamp receptacles. A cover covers the ballast and receptacles and interconnections and rests on top of the reflector.Type: GrantFiled: November 12, 1986Date of Patent: November 3, 1987Assignee: Scientific Component System, Inc.Inventor: Rhett McNair
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Patent number: 4703401Abstract: In an automotive head lamp, an auxiliary reflector made of heat-resisting synthetic resin is integrally provided in the center portion of a reflector made of synthetic resin. The heat-resistant auxiliary reflector encircles the bulb.Type: GrantFiled: December 11, 1986Date of Patent: October 27, 1987Assignee: Stanley Electric Co., Ltd.Inventors: Takeo Ichihara, Shuichi Watanabe, Takashi Futami, Nobutaka Oda
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Patent number: 4679127Abstract: The invention concerns a headlight for motor vehicles, with a cover plate that covers up the reflector. An essentially U-shaped enclosure made out of sheet metal is positioned in the vicinity of the lamp, which fits into an opening in the vertex of the reflector. The flanks of the enclosure extend above and below but not in contact with the lamp, at least to some extent constituting a screen that screens off sections of the reflector that generate diffused light. The flank below the lamp also functions essentially as a supporting arm for the enclosure. The free terminal section of the supporting arm above the lamp has a third screen. A tongue is punched and bent out of the area of the U-shaped enclosure between the lamp and the cover plate and constitutes the upper supporting arm.Type: GrantFiled: September 22, 1986Date of Patent: July 7, 1987Assignee: Hella KG Hueck & Co.Inventors: Hans-Otto Ernst, Helmut Jakobsmeyer
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Patent number: 4641226Abstract: A reflector for linear light sources and particularly for fluorescent tubes. The reflector has a substantially V-shaped cross-sectional configuration. For use in an array of lamps comprising a plurality of light sources arranged in parallel, a plurality of reflectors of the type disclosed may be assembled to form a reflector arrangement corresponding in size to the array of lamps, with the assembly in its entirety being sawtooth-shaped in cross-section.Type: GrantFiled: August 28, 1985Date of Patent: February 3, 1987Inventor: Walter Kratz
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Patent number: 4635173Abstract: In a headlight of a motor vehicle, having a housing and a diffusing lens enclosing with the housing an interior of the headlight, the interior is vented by means of a conduit exposed to air streams caused by travelling of the motor vehicle. The conduit is formed as an integrated part of the diffusing lens made of plastics.Type: GrantFiled: February 13, 1986Date of Patent: January 6, 1987Assignee: Robert Bosch GmbHInventors: Helmut Dressler, Peter Engenhart, Klaus Jahnel, Heinrich Kochendorfer, Ulrich Kuhn, Karl H. Matthas, Kurt Schuster
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Patent number: 4630182Abstract: An illuminating system for generating a high-intensity illuminating light utilizing a lamp of short arc type is equipped with a cooling device capable of effectively cooling the arc lamp and the reflecting optical members with an extremely simple structure. The illuminating system comprises a lamp emitting illuminating light of a high intensity; a reflecting optical member provided with a reflecting face surrounding the lamp and further provided at an end with a window for transmitting the light from the reflecting face and at the other end with an aperture for passing a part of the lamp; a casing integrally housing the reflecting optical member and the lamp and provided with a ventilating hole in a part of the casing for communication with the exterior; and air guide means for connecting the ventilating hole with an air path connecting the light transmitting window of the reflecting optical member with the aperture thereof.Type: GrantFiled: March 5, 1985Date of Patent: December 16, 1986Assignee: Nippon Kogaku K. K.Inventors: Akihiko Moroi, Hiroshi Tanaka, Shinya Hatanaka
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Patent number: 4612607Abstract: A desiccant pack is disposed in an automotive lamp unit to adsorb moisture therein. In order to tightly support the pack and protect the same from direct heat emitted from an electric bulb, a heat shielding plate is arranged in the lamp unit. The plate is formed with a plurality of lugs for gripping the pack and is located between the pack and the electric bulb.Type: GrantFiled: June 17, 1985Date of Patent: September 16, 1986Assignee: Nissan Motor Co., Ltd.Inventors: Toru Segoshi, Masakazu Mutoh
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Patent number: 4600979Abstract: Apparatus is provided for removing the heat from within a generally sealed enclosure having a heat generating means disposed therein, such as a surgical light. The enclosure of the light includes a slightly domed top, a generally cylindrical side wall and a round bottom lens. The heat generating means consists of a plurality of lamps located within a cylindrical housing having a closed end which is located within the enclosure in the center of the top thereof. Radial fins extend about the circumference of the heat generating means, certain of the fins having arms extending radially therefrom. A large curved reflector having a series of lower slots forms an annular inner wall between the arms of the fins and the lens adjacent the outer circumference thereof. As such, the heat generated by the lamp housing is passed to the fins and travels to heat the upper ends thereof.Type: GrantFiled: October 2, 1985Date of Patent: July 15, 1986Assignee: American Sterilizer CompanyInventors: Kenneth J. Fisher, William R. Miller
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Patent number: 4595971Abstract: The present invention provides a luminaire fixture having a generally cup shaped upper housing casting. A bowl shaped reflector is mounted thereto. The lower rim of the upper housing includes a flange extending outwardly and downwardly therefrom. The upper surface of the reflector includes a plurality of vent openings near its upper edge. The reflector is fitted to the lower edge of the housing such that the upper housing flange covers the vent openings in the reflector to prohibit rain and snow from entering the reflector. Further, the upper housing includes a rim extension contacting the upper surface of the reflector to seal the upper housing ballast compartment for safety requirements.Type: GrantFiled: May 6, 1985Date of Patent: June 17, 1986Assignee: FL Industries, Inc.Inventor: John R. Dean
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Patent number: 4574337Abstract: An underwater light employing a housing positioned within a niche such that water may flow around the housing. A lamp is positioned within the housing directed toward a lens. The lamp reflector is surrounded by high thermal conductivity metallic wool extending out to the housing which may also be of high thermal conductivity. A potting compound in the rear of the housing encapsulates the electrical connections. A lens assembly in one embodiment is illustrated as being pivotal within the niche housing.Type: GrantFiled: February 10, 1984Date of Patent: March 4, 1986Assignee: GTY IndustriesInventor: Charles B. Poppenheimer
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Patent number: 4555748Abstract: An improved vehicle lamp for forward illumination, such as a headlamp or fog lamp is provided which is substantially devoid of upward directed glare light and which is formed with a synthetic organic polymer material. Heat shield means are disclosed for said vehicle lamp to prevent heat distortion otherwise occurring at the lamp roof by reason of its proximity to the light source used. Said heat shield means can be provided as an integral portion of the lamp roof when molded and further include heat transfer means to dissipate heat from the internal lamp envelope.Type: GrantFiled: January 22, 1985Date of Patent: November 26, 1985Assignee: General Electric CompanyInventor: Irving Bradley
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Patent number: 4527225Abstract: Electric floor lamp comprising a generally conical base rotatably mounted on a stationary annular base. A column is fixed on and extends upwards from the conical base. At the upper end of the column, a laterally extending arm supports a lamp and two light directing members, one above and one below the lamp. The upper light directing member includes concentric rings spaced apart to provide air circulation. Height adjustment means are provided to change the elevation of the lamp above the floor.Type: GrantFiled: December 21, 1983Date of Patent: July 2, 1985Inventor: Cedric Hartman
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Patent number: 4504888Abstract: A light is described having a hollow body with a support means pivotally connected to the body for aiming the light, a transmission plate detachably held in its mount at the front of the body, a light source detachably mounted on a mounting plate which is in turn detachably mounted on the back end of the light, and a vent means for venting hot air from the interior of the light.Type: GrantFiled: January 25, 1984Date of Patent: March 12, 1985Assignee: Pennywise Enterprises, Inc.Inventor: Philip R. Rosenthal
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Patent number: 4489366Abstract: A novel portable light beam projector device, related system apparatus, and attendant novel method for wide variety use in conjunction with military vehicles, to establish optimum placement of optical fire detection sensors relative to installation of the vehicle's fire suppression system. These inventions are similarly usable to novelly establish corresponding optimum placement of various optical type intrusion and/or fire-detection sensors to similarly protect various confidential areas including storage facilities and attendant personnel/equipment/data and the like whether of a military, industrial or commercial character.Each light projector device has an adjustable tubular shroud to adjustably focus the light beam cone angle. The desired cone angle of the light beam is initially set by use of associated system apparatus including an associated light beam calibration chart and some optional projector support stands.Type: GrantFiled: January 28, 1983Date of Patent: December 18, 1984Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Edward J. Rozniecki
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Patent number: 4473865Abstract: A stationary light source electrophotographic copier wherein collimated light from the source is directed to a scanner having upper and lower document illuminating reflectors comprising thin members of negligible mass maintained under tension. The lower reflector includes a plurality of generally horizontal slats disposed in a generally vertical array. Heat from the stationary light source is used to dry or fix copies.Type: GrantFiled: January 18, 1982Date of Patent: September 25, 1984Assignee: Savin CorporationInventor: Benzion Landa
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Patent number: 4453203Abstract: A reflector for use with a discharge lamp having a front section with a reflective surface which follows a surface of revolution and a rear section which is fluted. The crests and roots of the flutes lie along arcs of concentric spheres. Light from the lamp directed toward the front section is reflected out through its open end. Light directed toward the rear section is reflected by the flutes away from the arc and toward the front section, thereby avoiding increases of arc temperature.Type: GrantFiled: July 19, 1982Date of Patent: June 5, 1984Assignee: Harvey Hubbell IncorporatedInventor: James R. Pate
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Patent number: 4439816Abstract: A lighting and air filter structure for use in clean rooms and the like. The structure includes a housing with upstream and downstream sides and through which air is flowed, the filter carried by the housing to filter the air, a plurality of lights carried by the housing downstream of the filter, and reflector means comprising a plurality of parallel, elongated reflector plates and carried between the filter and the lights. The plates are spaced in the direction of air flow from one another to provide air flow ports, and the reflector plates cause no significant pressure drop thereacross.Type: GrantFiled: December 10, 1981Date of Patent: March 27, 1984Assignee: Sci-Med Environmental Systems, Inc.Inventor: Philip F. Litchfield
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Patent number: 4423348Abstract: A lamp assembly comprises a high pressure discharge lamp and reflector wh are secured together as a structural unit. An insulating base is connected to the neck end of the reflector and to the lamp, and a front end ring is connected to the front, light emitting end of the lamp and reflector assembly. A pair of electrical connection members, preferably in the form of pins, are associated respectively with the base and end ring and are rigidly connected to the respective associate base and end ring. The connection members are electrically connected to respective ends of the lamp, the lead-in wire of the lamp and the front or light emitting end of the structure extending from the lamp substantially radially to at least one of the reflector and end ring and then extending directly to the connection member associated with the end ring. Preferably, the lead-in wire at the front end of the structural unit acts as a support and adjustment or locating member of the lamp.Type: GrantFiled: August 28, 1981Date of Patent: December 27, 1983Assignee: Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbHInventor: Wolfgang Greiler
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Patent number: 4410932Abstract: A table, wall, ceiling or desk lamp is provided with a translucent plastic shade having a top reflector at its upper end and bonded at its lower end to the outer periphery of a prismatic diffuser whereby the shade, top reflector and diffuser may be removed as a unit.Type: GrantFiled: June 11, 1981Date of Patent: October 18, 1983Assignee: Keystone Lamp Mfg. CorporationInventor: Joseph Oster
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Patent number: 4388678Abstract: This invention provides an improved reading or viewing lamp that achieves extraordinary visual acuity when properly used. The lamp employs a quartz-halogen bulb together with a parabolic lens to provide a collimated beam. A light filter removes heat radiation and ultra violet radiation from the beam. A convex mirror reflects the filtered light beam to the reading or viewing area where because of the point source characteristic of the bulb and the remaining optics, the rays are substantially non-crossing and transversely coherent in the reading or viewing area. In one embodiment, the collimated beam is directed vertically and tubular light shield surrounding the collimated light beam and a cylindrical shield around the convex mirror reduces transverse radiation of light to other parts of the room. The shield around the collimated beam also provides a chimney effect which disperses the heat throughout the room to points remote from the reader.Type: GrantFiled: October 14, 1980Date of Patent: June 14, 1983Inventor: Wheeler M. Turner
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Patent number: 4302801Abstract: An electric lamp reflector comprising a pair of similar, substantially hemispherical reflectors open at the outer ends and having inner openings coaxial with the central axis and said reflectors being nested together and uniformly spaced apart a limited distance except at the inner ends where cylindrical extensions are provided to engage each other and also fit only a cylindrical outer surface of a plastic electric lamp socket holder, the outer reflector having a circular row of holes therein spaced a limited distance from said cylindrical extension and adapted to permit circulation of ambient air to and from the inner reflector and lamp socket holder to render the temperature of the outer reflector safe to human touch.Type: GrantFiled: October 22, 1979Date of Patent: November 24, 1981Inventor: James J. Duddy
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Patent number: 4293899Abstract: Consumer type outdoor electrical luminaire that is simple, safe, affordable and weatherproof, is disclosed for providing variable illumination levels along walks and driveways, thereby conserving electrical energy. A novel self-powered convection cooling system enables a wide variation in illumination range. The luminaire contains only five parts, in addition to the bulb and fasteners. Supported on a vertical stanchion, it may be permanently or portably installed.Type: GrantFiled: December 21, 1978Date of Patent: October 6, 1981Inventor: George E. Sanner
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Patent number: 4290097Abstract: A-C high-pressure discharge lamp and reflector combination assembly in which the reflector and the lamp are each separately and individually cemented into a base, but are not cemented together. Ventilation openings are formed between the lamp and the reflector in the base, to permit air to pass between the base and the lamp, and between the lamp and the reflector. Preferably, the reflector at the end remote from the base is surrounded with a ceramic end ring, at the inner circumference of which extends a metallic ribbon or strip which has radially extending connecting portions to the electrical terminals of the lamp, placed edgewise with respect to the light radiation to provide for essentially shadowless electrical connection and high-voltage insulation between the lamp terminals. Constructing the lamp as an a-c lamp permits lifetimes in the order of hundreds of hours for a lamp of comparable power and size with respect to d-c high-pressure lamps.Type: GrantFiled: August 15, 1979Date of Patent: September 15, 1981Assignee: Robert Bosch GmbHInventors: Werner Block, Manfred Pilsak, Klaus Dusedau, Wolfgang Greiler