Abstract: A flashlight having a main body with a light emitting source at a distal end thereof powered by a battery power source within the main body and a switch at an opposite proximal end encapsulated within a resilient switch jacket defining an oral grasping portion adapted to be held between a user's upper and lower front teeth such that a biting force exerted thereon serves to operate the switch between an open position and a closed position. The proximal end of the main body is sized and configured to prevent accidental, forced entry of the flashlight into the user's oral cavity during use. A neck strap attached at opposite ends to the main body allows the flashlight to be hung about the user's neck in a readily accessible orientation.

Abstract: A flashlight includes a tailcap switch and a flexible boot made of an elastomeric material covering the tailcap switch and providing a water-resistant and contaminant-resistant shield around the switch. The flexible boot preferably includes a substantially cylindrical bellows section and a flat exterior end surface with at least one substantially straight edge on the circumference of the end surface that reduces any tendency of the flashlight to roll when laid on its side.

Abstract: A portable electric warning light comprises an elongated electrically conducting housing to which an end cap is connected at one end to provide an on/off switch function and to which a gas discharge flash tube is connected at the other end for emitting, through both end and side walls of a cover connected to the housing, bright flashes of light in response to the operation of batteries and an electronic circuit contained within the housing. The batteries are rechargeable, which can be accomplished in a particular implementation wherein external terminals provide access to the batteries without disassembling the light. The connection of one end of the batteries to the electronic circuit is made through the end cap assembly and the housing, and in one embodiment the connection of the other end of the batteries to the electronic circuit is made through the metallic housing of a flash capacitor forming part of the circuit.

Abstract: A mixture of approximately 95% barium sulfate and 5% polyvinyl alcohol in powdered form is mixed into a solvent, heated and sprayed onto a diffusion surface to be used in conjunction with high-intensity lamps ranging from 200 watts to 18 kilowatts to convert the irregular lighting from these sources to a smooth, broad, even diffused source suitable for use in motion picture and television settings and other situations in which a very bright, but soft, evenly dispersed light is desirable.

Abstract: An electrically lit chess piece includes a chess body which is coupled to a transparent cap at the top end and contains an internal battery housing. The battery housing includes a bulb positioned under the transparent cap and a magnet having springs at the bottom section. When the chess piece is placed on a metallic chessboard, the magnet is displaced in a downward direction and the bulb is lit. When the chess piece is removed from the chessboard, the magnet is pulled in an upward displacement by the springs and disconnects an electrical circuit for turning the light bulb off.

Abstract: A miniature two or three cell flashlight as disclosed to comprise a barrel, a tailcap, a head assembly, and means for holding a miniature lamp bulb and for providing interruptible electrical coupling to dry cell batteries retained within the barrel and having a recharger for charging the chargeable batteries via conductors in the tailcap.

Abstract: A flashlight for security personnel has a gravity actuated switch for application of electrical power to multiple lamps to enable the projection of light in downward directions to illuminate multicolored working surfaces and to inhibit the projection of light in horizontal and other directions where hostile persons may be watching. The projected light intensity is variable by polarizing optical means and is coordinated with the gravity switch and the user's control so that the initial intensity at turn-on of the flashlight occurs at the lowest projected intensity. The lamp array, contained in a removable cartridge, has multiple light emitters selected for color characteristics, for a fast time decay response on turn-off, and for reduced red and infrared energy emissions. Reversal of battery polarity effects dramatic changes in color or intensity of the projected light.

Abstract: A flashlight having a casing containing a pair of batteries, a head assembly mounted on an upper end of the casing, and a tail assembly mounted on a lower end of the casing. The head assembly includes a swivel head carrying a bulb with the swivel head being rotatable about a swivel axis which is inclined with respect to a longitudinal axis of the casing. The tail assembly includes a rotary switch for illuminating and extinguishing the bulb. The bulb has a terminal which is connected electrically to a negative terminal on one of the batteries by operating the rotary switch. Another terminal on the bulb is connected electrically to a positive terminal on the other battery. The rotary switch includes a lifter that is movable in response to rotation of the tail cap for lifting a spring out of contact with a conductive insert in the casing lower end thereby electrically disconnecting the conductive means and the battery negative terminal.

Abstract: A battery powered pocket flashlight has a noncorrosive and electrically nonconductive case containing a restrictive aperture for the projection of light from the lamp source and a resilient color filter attached externally upon the end of the case by integral stub axles extending inward into the case for an axis of rotation intersecting perpendicular to the longitudinal axis of the flashlight for operation by the user in the selection of unfiltered light of the lamp source or a light at a color of the visible spectrum of colors. The filter is secured to the case by resilience of the filter material and by its shape in the form of an acute sector of a sphere. The electrical subsystem is completely removable from the case for servicing.

Abstract: A flashlight having a switch and beam adjustment mechanism located in the tailcap whereby the flashlight may be turned on and focused with one hand without changing the grip on the flashlight by that hand. Batteries of "AAAA" size are contemplated for use in one embodiment of the flashlight.

Abstract: A twist switch is shown for a flashlight of the type having a conductive tubular body having an interior, opposing ends and an internal shelf formed at one of the opposing ends. The internal shelf has a bulb receiving opening and a reflector is mounted on the internal shelf. A bulb is inserted into the tubular body having a shoulder contact which rests on the internal shelf and a base contact which passes through a bulb receiving opening in the internal shelf. A dry cell battery is stationarily positioned within the interior of the tubular body and has a center terminal in electrical contact with the bulb base contact. An end cap is rotatably engaged on the end of the tubular body opposite the reflector. A conductor element located within the interior of the end cap is initially separated from the tubular body by an insulating member.

Abstract: A miniature two or three cell flashlight as disclosed to comprise a barrel, a tailcap, a head assembly, and means for holding a miniature lamp bulb and for providing interruptible electrical coupling to dry cell batteries retained within the barrel and having a recharger for charging the chargeable batteries via conductors in the tailcap.

Abstract: A pen-size flashlight comprises a tubular body receiving two size AAAA batteries and having a bulb and bulb contact assembly mounted on the forward end and a switch assembly driven by a rotatable cap on the rear end. The bulb contact assembly is removable for changing batteries and includes a bulb holder threadably secured to the tubular body and mounting a bulb, an insulator mounted to the bulb holder and defining an opening extending from the bulb tip terminal toward the front battery terminal and a dual diameter coil spring extending through the insulator to electrically connect the bulb tip terminal and the front battery terminal. The switch assembly includes a switch housing defining a threaded opening extending rearwardly from the rear battery terminal and a switch plunger threadably received in the switch housing opening. A switch driver sleeve is mounted for rotation about the switch housing and a cap is fitted over the switch driver sleeve and switch assembly.

Abstract: An improved skateboard having roller trucks attached to the underside of the skateboard deck. The trucks are insulated from the skateboard deck by riser pads of sufficient thickness to receive and house self-contained battery operated lamps. The lamps are positioned to direct light beams from beneath the deck in fore and aft directions. Switch means in the lamps are operable to turn the lamps on and off.

Abstract: A single pole, single throw switch for flashlights and other low amperage circuits is enclosed in a dielectric housing having an electric circuit contact fixed therein, the switch being selectively actuable by moving a threaded portion of a first electrode into and out of a complementarily threaded portion of a second electrode. Relative motion of the electrodes is achieved by manually rotating a cap-like part of the housing to which the first electrode is fixed. Voltages that can be accommodated by the switch are limited by the associated I.sup.2 R effects of contact resistance during switch actuation. Various components of the switch are fixed in the dielectric housing by friction, tongue and groove fasteners, and screws to facilitate servicing and repair.

Abstract: A battery powered pocket flashlight has a noncorrosive and electrically nonconductive case containing a restrictive aperture for the projection of light from the lamp source and a resilient color filter attached externally upon the end of the case by integral stub axles extending inward into the case for an axis of rotation intersecting perpendicular to the longitudinal axis of the flashlight for operation by the user in the selection of unfiltered light of the lamp source or a light at a color of the visible spectrum of colors. The filter is secured to the case by resilience of the filter material and by its shape in the form of an acute sector of a sphere. The electrical sub-system is completely removable from the case for servicing.

Abstract: A lighting equipment includes a cylindrical tube having a profile formed in a bottom. The profile has a pair of lower grooves and a pair of higher grooves. A barrel, a spring, a cell and a braket are received in the cylindrical tube. A rod is coupled to the bracket. A pin is laterally provided on the rod. The pin is actuated to follow the profile so that the pin is laid in either the upper grooves or the lower grooves. A center electrode of the cell is actuated either to contact or to be separated from a prong of a light bulb in order to turn on or turn off the light bulb.

Abstract: A flash-light has a light-shell, a cylinder, a bottom cover which can be screwed to touch the bottom side of the cylinder, thus, the circuit of the bulb can be easily controlled.

Abstract: A warning & lighting flash light has a cylindrical tube, a rear lid and a front cap which can adjustably be rotated around the tube to move back and forth in such a distance to make the light of the lamp to be reflected forward by the mirror provided at the front cap to function as a lighting flash light or to shoot through the light passing portion covered with a filter to function as a warning one.

Abstract: A flashlight having a switch and beam adjustment mechanism located in the tailcap whereby the flashlight may be turned on and focused with one hand without changing the grip on the flashlight by that hand. Batteries of "AAAA" size are contemplated for use in one embodiment of the flashlight.

Abstract: A flashlight includes a tube; a control ferrule with an inner helical groove being rotatably disposed on the front portion of the tube; a face cap with a lens and a reflector being provided on the front end of the front portion; and one or more batteries being disposed within the tube. A socket with two conductors respectively connected to two prongs of a light bulb is slidably disposed within the front portion of the tube. A pin couples the socket to the control ferrule so that the socket is guided to move along the guide holes of the tube by the relative movement between the pin and the control ferrule. A sleeve is disposed on one end of a tail cap for engaging into a rear end of the tube. A small gap separates the sleeve and the tail cap. A spring member is disposed between the tail cap and the battery so as to urge the tail cap not to electrically connect to the tube.

Abstract: A switch mechanism for a flashlight is disposed in an end cap on a rear end of the flashlight. The switch mechanism includes a plunger cylinder fitted within the end cap, an annular ring being force-fitted on a front end of the plunger cylinder, a guide with a number of guide blocks and a cam surface being slidable in the plunger cylinder, a plunger with a number of ribs and a cam surface being slidable in the guide, a contact element passing through the annular ring, and a spring being biased between a rearmost battery and the contact element. The contact element is pushed to overcome a biasing force of the spring and is contactable with the annular ring by depressing the guide.

Abstract: A pen light has a removable dental mirror positioned to be in the beam of the light. The flashlight has a barrel which is constricted on one end to capture and hold a pen light bulb dropped in the other end. The electrical circuit within the flashlight includes a strip spring with a bow or arched section which make contact with the base of a flashlight bulb of almost any type and with many different sizes, on a bulb drop-in basis. The electrical contacts are such that the batteries may be dropped either end first into the barrel of the flashlight. The off-on switch has a threaded screw so that the light is switched off and on by turning a screw.

Abstract: A flashlight having a tail cap switch is disclosed. The tail cap is formed to fit in one end of the flashlight barrel for retaining one or more power cells therein. It is easily removable for replacement of the flashlight power cells. The tail cap has an integral switch for connecting and disconnecting the flashlight bulb to and from the power cells. A flexible boot is provided for enclosing an exposed portion of the switch when the tail cap is installed in the flashlight barrel. The flexible boot, which is formed of a resilient, water-resistant material, has a peripheral sealing portion which is formed to fit between the switch body and the barrel so as to form a watertight seal therebetween.

Abstract: A self contained, hand held light in the form of a baton having a handle of cylindrical contruction that forms a battery compartment therewith. A bottom cap is removably received for closing the lower end of the handle and for actuating a switch means that is connected to be actuated by the cap. A bulb is supported at the upper end of the handle, and circuitry for the bulb supplies current flow from a storage battery by a conductor strip that is bent at the opposed marginal ends into a switch and a bulb holder. A hollow light transmitting cylinder is attached to the upper end of the handle, and a solid nose piece is attached to the upper end of the cylinder. This provides a water-proof device that is useful of signaling, controlling crowds, and illuminating dark areas.

Abstract: A flashlight having a switch and beam adjustment mechanism located in the tailcap whereby the flashlight may be turned on and focused with one hand without changing the grip on the flashlight by that hand. Batteries of "AAAA" size are contemplated for use in one embodiment of the flashlight.

Abstract: A pocket flashlight utilizes a push button type of switch assembly retained in one end of a cylindrical casing by a metal retainer. A lamp bulb is disposed in the other end of the casing. The switch assembly includes a shuttle formed of conductive material which is movable within a sleeve into and out of electrical contact with the retainer to illuminate and extinguish the bulb. The switch assembly also includes a rotor and a plunger movably disposed in the sleeve. The shuttle may be locked in electrical contact with the retainer by engaging teeth on the rotor with splines on the sleeve.

Abstract: A miniature two or three cell flashlight as disclosed to comprise a barrel, a tailcap, a head assembly, and means for holding a miniature lamp bulb and for providing interruptible electrical coupling to dry cell batteries retained within the barrel and having a recharger for charging the chargeable batteries via conductors in the tailcap.

Abstract: A flashlight comprises a battery housing component and a lamp housing component, both with peripheral walls of elliptical cylindrical shape having, respectively, the same major and minor diameters, and terminating at one end, respectively, in a circular edge that lies in a plane that is oblique to the axis of the cylindrical wall by a selected angle A and includes a major diametrical chord of the ellipse of the walls. The minor diameter of the ellipse of the peripheral walls of each component is equal to the cosine of the angle A times the major diameter. The housing components are joined together with their circular edges meeting for rotation of the lamp housing component on the battery housing component, thereby permitting adjustment of the direction of the light beam relative to the axis of the battery housing component.

Abstract: A portable flashlight including a body having therein a dry cell assembly and a dry cell holder frame and having on its front face a light source unit, wherein the body is provided on the bottom face with a first contact plate coming into contact with a first dry cell and a second contact plate coming into contact with a second dry cell, one of said contact plates being integrally provided with a projecting contact piece, which has its contact end extended above the other contact plate, and an axially turnable keep member is attached on the contact piece, said keep member being turned at a given angle, whereby the contact piece is forced down into contact with the other contact plate.

Abstract: A waterproof flashlight wherein the flashlight is activated by means of a switch located in the flashlight's end cap. Another aspect of the invention being the orientation of the positive terminals of the flashlight's batteries away from the head assembly.

Abstract: A portable lighting arrangement includes a case formed of a plastic material, a cap having therein a reflector and an electric bulb and attached detachably and watertightly to an opening in said case, a battery holder adapted to detachably mount therein a plurality of dry batteries through said opening along the outer surface thereof, a pair of connecting pieces provided at the front end of said holder, a pair of contacts provided at the rear end of said holder, and a switch attached watertightly to the rear end of said case.

Abstract: Lamp, including a head, a concave mirror reflector disposed in the head, a battery case, and a carrier for a light source being integral with the battery case forming a one-piece unit, the reflector and the carrier being movable to each other in axial direction, and a method for producing the lamp.

Abstract: Disclosed is a pen light having an outer casing, a lamp within the lower end of the casing, battery means within the casing in electrical contact with a first terminal of the lamp, a conductive clip for engaging the battery means toward the upper end of the casing, and a conductive member engaging a second terminal of the lamp and extending into proximity with a free end of the clip so that the free end of the clip can be pushed through a contact opening in the casing into electrical contact with the conductive member to turn on the lamp. The clip is shaped so that it abuts against the upper edge of the contact opening at a point above the free end such that the electrical circuit to the lamp can be closed when pressure is applied to the clip at the free end but cannot be closed when pressure is applied to the clip above the point of contact.

Abstract: A penlite the body of which is made from two reinforced plastic half-bodies which are joined along one common edge by an integral web hinge.

Abstract: An electric light balloon containing a balloon, a housing for insertion into the balloon, access for inflation, illumination device, power supply, and a way for activating the system wherein the housing contains an orifice at its top end directly in line with the longitudinal axis of the balloon to allow direct light to enter the balloon from the bulb.

Abstract: A spotlight assembly conformed for electrical excitation through the cigarette lighter of an automobile comprises a hollow housing formed by mating a front and a rear housing halves, each half including an upper portion for receiving a bulb and a lower portion forming a handle. The bulb, preferably of the sealed beam type, is retained against outward progression by an inwardly directed lip in the upper front portion and is pressed against this lip by an annular ring in the rear upper portion, the ring being guided by axially aligned posts for compression against the bulb by helical springs on each post.

Abstract: This invention, in the preferred embodiment, relates to battery powered hand held lamps, commonly known as flashlights, or when in compact form as pen or pocket lights. More specifically, the invention relates to quasi-blackout applications and uses that require fast visual recovery in darkness and minimum personal exposure of the operator of the device.

Abstract: A reusable light comprising a housing configured to operatively retain a voltage source therein having an extended bulb assembly mounted on one end thereof and a switch pivotally mounted on the opposite end thereof, the extended bulb assembly comprises an elongated hollow sleeve having a mounting member attached on one end thereof to attach the extended bulb assembly to the housing and a bulb housing having a light source disposed therein attached to the opposite end thereof, a first conductor including a first and second conductor element extending substantially the length of the flexible light coupled to the light source, a second conductor disposed within the hollow sleeve being coupled to another portion of the light source and a removable cap to selectively house the extended bulb assembly, the switch movable to operatively engage the first conductor means to selectively close the circuit and activate the light source.

Abstract: A pen light comprising a hollow substantially cylindrical housing having a retainer member secured to the rear portion thereof to house a single voltage source in operative engagement with a light source, a first conductor member movable between a first and second position and a second conductor member each disposed within the hollow substantially cylindrical housing to operatively engage the light source and the voltage source respectively and an actuator clip attached to the hollow substantially cylindrical housing movable between a first and second position to selectively engage the first conductor member such that when the actuator clip is in the first position the first conductor member is separated from the second conductor member to form an open circuit and when the actuator clip is in the second position the actuator clip engages the first conductor member to move the first conductor member from the first position to second position whereby the first conductor member engages the second conductor membe

Abstract: A conductor tube for a battery operated flashlight is disclosed. The conductor tube comprises an inner non-conductive sleeve positioned within an outer conductive sleeve. The flashlight bulb-receiving end of the conductor tube includes a plurality of inwardly disposed lances which extend from the outer conductive sleeve through the inner non-conductive sleeve to electrically engage the base terminal of the light bulb. The lances may extend longitudinally with respect to the conductor tube to securely receive the base of the light bulb of the flashlight. Alternatively, the lances may extend substantially circumventially about the end of the conductor tube to threadably receive the base of the light bulb and establish electrical continuity therewith.

Abstract: A pocket flashlight, which may be disposable, is disclosed. The flashlight includes a tube-like body, preferably formed of plastic or other non-conductive material, which is adapted to receive at least one flashlight battery and a flashlight bulb. The flashlight includes a conventional pushbutton mechanism which selectively activates the flashlight bulb. A spring member, located within the flashlight body, is provided for completing an electrical circuit when the pushbutton mechanism is depressed. The spring member, formed of metal or other conductive material, includes a helical spring and a relatively narrow spring leg, the latter fitting within a channel formed in the flashlight body, in order to complete the electrical circuit when the pushbutton mechanism is depressed.

Abstract: A flashlight for bore sighting a long barreled shotgun or rifle including a cartridge case with an ejector rim and a primer opening in the base, and a sidewall defining an open front end; a battery and a light bulb within the case; a switch pin slidable in the primer opening to complete the circuit for illuminating the bulb, a spring normally urging the switch pin outwardly and a metallic bulb holder adjacent the front of the case; in a shotshell case, the bulb holder having a frame shank extending along the battery and to the base thereof, the shank having an apertured flange at the base of the battery, spaced from the battery by an insulator and the hole in the flange aligned with the switch pin.

Abstract: A work surface light apparatus includes a plastic housing (12) having a central longitudinal opening (34). At one end of the opening (34) is an end plate (30); at the other end, longitudinally aligned, is a cap (14). A soft flexible and expandable grommet (36) is secured in each opening (34). Within the housing (12) surrounding the central longitudinal opening (34) is a battery (22), a lamp (24), wires (32) for interconnecting the lamp (24) with the battery (22), an electrical switch (18) electrically interconnected with the wires (32) to control the lamp (24), and third plate (26) that secures the lamp (24) in place.

Abstract: The present invention provides a simple light which has a minimum of parts and which can be assembled simply and conveniently. The light is preferably a disposable penlight and includes a pocket clip assembly which is coupled electrically to an energy source and bulb and which has an arm movable by squeezing the arm to bring a distal end piece of the arm into contact with the housing to energize the bulb. The clip assembly includes a non-conductive fulcrum piece which is attached to the arm in engagement with the housing and intermediate the ends of the arm. This piece maintains the end piece of the clip remote from the housing to prevent accidental contact and to increase the force needed to bring the end piece into contact with the housing.

Abstract: The battery assembly is housed in the casing of the flashlight so as to be axially slidable therein, whereby the displacement of said assembly in one direction closes the electrical circuit comprising the bulb, and the displacement in the opposite direction opens said circuit. A pushbutton radially extends from the flashlight casing. The said pushbutton is provided with a cam-shaped portion cooperating with an axially slidable cam follower to transmit the axial displacement to the battery assembly.

Abstract: Miniature flashlight consisting of a case (1) of moulded plastics material closed by a cover (2) that is at least partly metallic and containing a cell (18), an electric bulb (11-12) and a pressure spring (16), characterized in that the whole unit is flat in shape, comprising two facing walls formed respectively by the bottom wall (7) of the case and by at least a portion of the cover (2); in that the cell (18) consists of a flat cylindrical cell the casing of which is in contact with the center contact stud (19) of the bulb (12) and the opposite polarity contact (20) of which is oriented towards the cover (2); in that the bottom wall (7) of the case (1) comprises parts (9, 10) enabling the socket (11) of the bulb (12) to be housed and restrained; and in that at least one of the two facing walls (7 and 2) is flexible enough for compression of the unit between the fingers (25) to bring the socket (11) or the cell (18) contact (20) into contact with the conducting portion of the cover (2).

Abstract: An electric lamp with a parabolic reflector in a threaded collar, provided with a device for adjusting the focus by relative displacement between the bulb and the reflector which occurs when turning the collar on its threads between first and second adjusting positions. The device furthermore controls a switch housed within the casing for the device. The device is particularly applicable as an electric headlamp for mountain-climbers or spelunkers.

Abstract: A small portable, lightweight, long life, battery powered light includes fastening means for fastening it near the end of a fishing rod so that a fisherman can see the fishing rod tip move during darkness. The closure cap for the battery compartment forms the switch, and the lens includes light diffusion lines to soften the glow.

Abstract: A disposable flashlight includes a battery and bulb within a casing, a conductive clip engaging the battery and extending through an elongated peripheral slot in the casing, and a conductive member engaging a terminal of the light and extending into proximity with the end of the clip so that the end of the clip can be pushed through a contact opening in the casing into electrical contact with the conductive member to turn the light on. The peripheral slot extends a sufficient distance along the circumference of the casing so that the clip can be rotated within the slot to an "off" position in which its end no longer overlies the contact opening within the casing. In that position, the light cannot be activated when pressure is applied to the clip.