Abstract: A lighting system is provided which is utilized in lower temperature environments, such as refrigeration units and the like which uses specially constructed neon tubes to reduce the size of the lighting system while emitting sufficient white light to adequately light the refrigeration unit. The process of manufacturing the neon tube includes attaching electrodes to open ends of a glass tube having in interior phosphate coating. Current is applied until the glass tube is raised to a predetermined temperature, and the contents of the tube are evacuated. Cleaning gas is injected into the glass tube and the glass tube is again evacuated. The glass tube is then filled with mercury and a neon and argon gas mixture and sealed. The resulting white light-emitting neon tubes, which have a diameter of six to eight millimeters, are positioned within an elongated cavity of a frame of the lighting system.

Abstract: An underwater light has a head assembly including a reflector, a light source located in the head assembly and movable relative to the reflector, a housing that moves relative to a slide that engages the switch such that it is twist activated. Continued twisting adjusts the position of the light source to adjust beam spread. Bearings are included in the head assembly to allow the twisting action to be effected under high pressure, while o-ring seals prevent leakage.

Abstract: A fluid pressure relief seal for preventing the ingress of fluid into a container and for venting fluid from the container is disclosed. The fluid pressure relief seal works in conjunction with a container having a receptacle and a lid. The receptacle has a mouth and at least one aperture in the receptacle for venting fluid from the container, while the lid covers the mouth and is engagable with the receptacle. The fluid pressure relief seal comprises a fluid-impermeable washer elastically stretched over an exterior of the receptacle and compressed between the lid and the receptacle when the lid and receptacle are engaged to prevent the passage of fluid into or out of the container. The fluid pressure relief seal also comprises a fluid-impermeable lip seamlessly molded with the washer and elastically stretched over the exterior of the receptacle and apertures in the receptacle for venting fluid from the container.

Abstract: A safety method and toy position a rotatable stopper in a bore where the stopper can not be gripped by human hands and create a friction fit between the stopper and bore that requires a rotational torque that can not be applied to the stopper by human hands alone when the stopper is in the bore.

Abstract: A miniature flashlight as disclosed to comprise a barrel, a tail cap, a head assembly, and a miniature lamp bulb holder and for providing interruptible electrical coupling to dry cell batteries retained within the barrel. One-way valves may be positioned at seal locations in association with passageways to allow venting of overpressure within the interior volume of the flashlight.

Abstract: A waterproof flashlight device for umbrellas comprises a shell made of transparent soft material, a circuit board, at least a battery, and a self-control switch. The shell has a seat installed inside. The seat is joined with a stage having a hollow chamber inside through a waterproof grommet. The circuit board is installed inside the stage. The flashlight circuit on the circuit board connects to at least a battery. The self-control switch connects the battery with the flashlight circuit. The self-control switch has two soft circuit boards. A metal ball is lapped on one of the two soft circuit boards. When the user unfolds the umbrella at night, the metal ball will contact the two soft circuit boards, and the battery will provide electricity to the flashlight circuit. The flashlight circuit will thus flash when there is no sufficient light outside.

Abstract: An illuminated soap bar including a soap body and an electronic circuit incorporated into the soap body. The circuit has the following: a pair of spaced-apart probes electrically exposed for contact with a conductive medium; at least one light source for emitting light visible externally of the body; and a power supply for supplying electrical current to the light source. The electronic circuit is designed to allow electrical current to flow to and illuminate the light source when the probes are in contact with a conductive medium which defines a conductive path between the probes.

Abstract: A flashlight comprises a housing including a cavity adapted for receiving a battery and a reflector mounted to said housing and having a light-reflecting surface and a bore therethrough for receiving a lamp. The bore includes a circumferential groove therein and an annular ring or O-ring of resilient material in the groove. The lamp has a filament and has a pair of electrical leads at one end thereof. An electrical connector is mounted to the housing and engages the electrical leads of the lamp for holding the lamp in the bore of the reflector within the annular O-ring of resilient material for cushioning the lamp against physical shocks. Battery terminals in the cavity of the housing connect the lamp in circuit with the battery which provides electrical power for energizing the lamp filament to produce light.

Abstract: An optic device for use in viewing the interior of pressurized vessels, especially high pressure fluid pipelines. Embodiments of the optic device allow manual or automatic insertion/retraction of the viewing head allowing variable depth viewing of the interior. The viewing head is capable of various embodiments including the ability to carry various optic devices and is adapted to withstand high pressures. The automatically insertable optic device can be either hydraulically or pneumatically actuated. Both the automatic and manual optic devices may be fixed or variable focus. The fixed focus devices utilize lenses, ultra-miniature color cameras, and fiberscopes either with or without integral light sources as part of the viewing head. The variable focus device utilizes lenses and a reflector. Preferably, the viewing head utilizes sapphire viewing windows which exhibit excellent light transmission and resistance to high pressures.

Abstract: A marine safety light for maximizing a boat's visibility to other boaters during darkness and inclement weather conditions consisting of a LED array which consists of a plurality of LEDs arranged in a star configuration. The LED array preferably consists of six white LEDs evenly spaced in the horizontal plane and positioned within a fresnel lens such that an even omni-directional distribution of light is emitted. LED array is powered using a power circuit which includes two conventional DC to DC converters which regulate the output voltage, allowing the marine light to operate at a constant brightness for a substantial period of time on a conventional 1.5 volt power source. Further, the power circuit automatically shuts the marine safety light off when sufficient ambient light is available and provides a continuous flashing signal when the power source is low.

Abstract: A portable battery powered signal light includes a battery housing and batteries, a generally cylindrical lens having threads and a lamp in the lens, a flasher positioned between the lamp and the battery housing including electrical contacts, a day-night sensor connected to the flasher to permit operation of the flasher only when it senses darkness and a locking ring having threads mating with the threads on the lens and an internal flange overlapping flange on the battery housing so that when threads on the locking ring are tightened on the threads of the lens, the battery housing, flasher and lens are secured together and electrical connections are made across the flasher, the day-night sensor and the lamp.

Abstract: A novel hand held waterproof or submersible laser illumination device which provides for prolonged precise controlled illumination. The present invention also provides for a combination generalized illumination and selectable precise laser outputs.

Abstract: A light assembly for providing a directed beam of light. The light assembly includes a specially configured lamp-reflector assembly which incorporates a high output lamp. The lamp-reflector assembly also incorporates a multi-faceted reflector for directing the beam of light within a restricted cone angle as it exits the light assembly. The lamp-reflector is housed in a flexible enclosure surrounding a translucent lens at one end and a power cord exiting the opposing end. The flexible enclosure is adapted for waterproof applications.

Abstract: A light distribution system includes an area light emitting portion, a light source for supplying light to an input edge of the light emitting portion for conduction within the light emitting portion and emission therefrom, and a power source for the light source. A holder may be provided for the light emitting portion. The holder may be made of a flexible material to permit the holder to conform to a contoured surface such as the arm or other body part of a person. Also, a flexible band or belt may be provided for personal wear. The light distribution system may include an additional light source which is directional so it can be seen at a greater distance than the area light emitting portion. An information display system controlled by an interactive switch may also be provided for displaying selected information.

Abstract: A flashlight with a rotatable lamp head is provided. The lamp head pivots about two cylindrical coaxial electrical connectors. The lamp head also includes reflector having a major parabolic reflective surface and a minor reflective parabolic surface. The reflector is configured so that the minor reflective surface is nested within the major reflective surface. The flashlight also includes a series of fluid-tight seals to insure that the flashlight is waterproof. In addition, a flapper valve is provided to function as a one-way valve allowing the release of gases produced by the use of the batters, and preventing fluid from entering the flashlight. A battery charger is also provided to recharge a battery pack for the flashlight.

Abstract: A hanging emergency light assembly comprising a portable housing which includes a compartment for accommodating at least one battery for supplying electric power, and opposite first and second light emitting ends. The first light emitting end of the portable housing is provided with a strobe lamp and a red colored lens for emitting a red colored strobe light. The second light emitting end of the portable housing is provided with a high intensity light bulb and a clear lens for emitting blinking high intensity light. The hanging emergency light assembly further comprises first and second switches for independently activating and deactivating the strobe lamp and the high intensity light bulb, respectively.

Abstract: An illuminated diving rod for use in areas or conditions of zero or low visibility, comprising a transparent tubular rod member with an angled distal tip at one end, the tip being angled from the central longitudinal axis of the rod member from about 30.degree. to about 45.degree.. A handle assembly comprising a housing, a power source mounted in the housing, a switch strip mounted in the housing and moveable bulb and reflector seat moveably mounted in the housing is secured to the opposite end of the rod member. A cover member is threadably mounted to the housing and encases and engages the bulb and reflector seat.

Abstract: An ornamental lighting apparatus for a pool uses reflectors on a curved surface wherein the curved surface is preferably a hemisphere with a plurality of mirrors mounted on its outer surface. The hemisphere is connected to one or more lights which are directed at the mirrors on the hemisphere. Although movement of the lighting apparatus and/or the water in the pool is sufficient to create a varying light pattern on the sides and bottom of the pool, in a preferred embodiment, the mirrored hemisphere is rotated with respect to the lights to create a moving pattern of light on the pool walls and bottom. The lighting apparatus may be positioned such that a base unit is resting on the bottom of the pool with the connector between the light containing base unit and the hemisphere being of adjustable length. Alternatively, the entire lighting apparatus may float within the pool and the connector may be of fixed length.

Abstract: A secondary or redundant battery supply which nests in-line in a tubular or oval housing. The present invention also provides for a flashlight or flashlight laser illuminator with a secondary or redundant battery supply.

Abstract: The present invention provides an illuminated cover and gauge assembly including a cover body and a transparent portion connected to the cover body to form a housing resistant to penetration by fluids, particularly volatile fluids such as gasoline. A selectively operable illuminating system, preferably including at least one light emitting diode (LED), a battery electrically connected to the LED and an off/on switch mechanism electrically connected between the battery and the LED is mounted in the housing.

Abstract: A lighted eyeglass assembly with handle is provided including an eyeglass assembly and an elongated handle housing. The housing has the eyeglass assembly pivotally coupled thereto such that a universal coupling afforded. A light assembly includes a bulb mounted to a top of the handle housing and connected to a battery situated within the handle housing.

Abstract: The present invention describes a flashlight powered with an oblong power supply. The flashlight is designed to be compact and watertight. It is protected against the entrance of moisture with a single O-ring seal. The case of the flashlight can be injection molded and can be used without secondary fabrication such as gluing. The flashlight includes a light module which is held to prevent its rotation relative to the case to thereby maintain a desired polarity with the power supply permitting a variety of polarity responsive lamps or circuits to be incorporated into the design. Some configurations create light output color or intensity changes by reversing the batteries. On-Off switching is accomplished using a mechanism independent of the location of the power supply so that power supply movement will not cause inadvertent energizing of the lamp or hazardous sparks.

Abstract: A waterproof man overboard personal rescue light unit for use in detecting, locating, raging to, engaging, and rescuing personnel needing rescue is disclosed as having a body having a closed lower end and an upper end; a steady state light located proximate to the upper end of the body so as to emit a generally hemispherical light pattern when energized; a non-incandescent strobe light located proximate to the upper end of the body so as to emit a generally hemispherical light pattern when energized; at least one switch for electrically coupling the steady state light and the non-incandescent strobe light to a source of electrical power; a lens matable to the upper end of the body to create a waterproof enclosure defined by the body and the lens, and to permit a generally hemispherical emission pattern of light generated by the steady state light and the non-incandescent strobe light. The unit is preferably buoyant and attachable to a user by way of a tether.

Abstract: An electronic road beacon is provided with a flashing light. The beacon functions as a traffic alert device by being placed on the surface of a roadway or other surface. Accordingly, the beacon is designed to withstand the impact of a car, truck or other vehicle which may strike or run over the beacon. The beacon comprises three essential components. The first is a circular base plate having a raised annulus around the periphery which defines an interior opening and a bottom portion. The second component is a dome comprising a spherical lens having internal concentric radial freznel and at least one reflector mirror. The dome is mounted to the base plate and define a sealed interior space that is protected from weather and other harmful conditions. The third component is a circuit board that is mounted to the bottom portion of the base plate in the interior space of the beacon. The circuit board contains solid state circuitry and a light emitting bulb. The light is focused and intensified by the dome.

Abstract: A safety signaling device, usable by persons would fall overboard from a vessel, with a rechargeable battery activated by the present of water to transmit both a light signal and a radio signal. A housing contains both transmitting sources and has spaced sets of probe contacts to recharge the unit. Reset and test buttons are also provided on the housing's front to reset the operating transmitters and to test their performance.

Abstract: A miniature flashlight as disclosed to comprise a barrel, a tail cap, a head assembly, and a miniature lamp bulb holder and for providing interruptible electrical coupling to dry cell batteries retained within the barrel. One-way valves may be positioned at seal locations in association with passageways to allow venting of overpressure within the interior volume of the flashlight.

Abstract: A replacement safety light system comprising a self-contained, self-powered, individual safety light designed to be secured to a vehicle as a replacement safety light or to be used as a free-standing warning light or flare. The safety light utilizes a bifocal lens and blue light emitting diodes to provide enhanced visual recognition.

Abstract: A miniaturized lighting apparatus for a rotating object includes a light-emitting diode (LED), a centrifugal switch, a tiny 3 volt power source, and electrical conduits. The switch is configured to provide power to the LED only upon application of a specific centrifugal force. As applied to an in-line roller skate wheel, the switch and LED may be sealed within the wheel, and the batteries never need replacement because the battery life exceeds the expected wheel life. An in-line skate wheel incorporating the lighting apparatus within it is activated to light the wheel at a predetermined centrifugal force equivalent to a given rotational speed of the wheel, such as 80 rpm. As applied to a reflector light for a bicycle wheel, the light draws power from the battery(ies) only while the wheel is turning at a minimum predetermined rotational speed such as 20 rpm. As applied to a rotatable flying disc, lighting apparatus are mounted on opposite sides of the disc, near the disc periphery.

Abstract: A safety light for a bicycle. A housing member supports a power source and at least one light source. The light source is electrically connectable to the power source. A motion sensitive switch switches between an open condition and a closed condition in response to motion of the housing member. A control circuit is activated dependent on the open and the closed condition of the motion switching means. The control circuit produces a flashing voltage pulse effective to cause the at least one light source to flash on and off. The control circuit also detects an on-off cycle each time the switching means switches between the open condition and the closed condition in response to motion of the housing member and produces a flashing voltage pulse for a predetermined length of time after detecting a last on-off cycle.

Abstract: A scuba or snorkel device with a circuit will turn on a light (preferably an LED) one or more times over a timed flash interval but will respond to a further closure of said switch during the flash interval. A circuit is provided to prevent response to such switch if two probes do not sense that the probe is in water. The circuit preferably will time a longer interval and turn on the light if the motion responsive switch is not actuated over the longer interval.

Abstract: A modular flashlight is formed from three parts which are screwed together--a battery housing, a switch housing, and a head. An O-ring at each screw connection provides a substantially watertight seal. A bulb is mounted in the switch housing and a reflector is mounted in the head. Rotation of the head relative to the switch housing varies the focus of the light reflected by the reflector. The head can be removed from the switch housing so that the bulb can provide candle illumination.

Abstract: A portable electric lamp suitable for use in hazardous locations includes a fixture which is purged continuously with air during operation. Pressurized air is introduced at an input end of the fixture, through a plenum which establishes a generally laminar flow of air through the fixture during purging. To insure that the fixture is satisfactorily purged before power is applied to the lamps, differential pressure is measured over a precision orifice at the discharge end of the lamp, and total flow is determined. During the start-up cycle, pressure within the fixture must exceed a predetermined minimum threshold; but following start-up, the operating pressure may drop lower than the initial minimum pressure, as long as a positive pressure is maintained within the fixture.

Abstract: An electrochemically operated device such as a portable lantern, with a waterproof housing enclosing at least one galvanic battery cell which evolves hydrogen gas, and a push button switch in the housing, a shiftable boot exposed to the housing exterior and aligned on the interior with the switch, a hydrogen recombination pellet in the housing, and a pellet retainer retaining the pellet, the housing including an elastomeric septum between its interior and exterior, having a sphincter orifice therethrough of a size to be elastomerically squeezed closed except under a predetermined pressure differential thereacross, to thereby prevent water entry to the housing, but to open to allow hydrogen gas escape from the housing at a pressure differential across the septum. The boot is resilient and the elastomeric septum preferably forms a part of the boot.

Abstract: A self or internally powered electric strobe-type illumination beacon for use in connection with hazard-warning, navigation or any other activity requiring the temporary placement of an illumination device having a switch means operable by rotating the top section about the bottom section enabling the repeated pulsing of the lamp means for light emissions.

Abstract: A portable electric lamp suitable for use in hazardous locations has the fixture purged with breathable air a predetermined time before power is coupled to energize the lamps. The fixture is continuously purged during operation. If the internal pressure falls below a predetermined minimum level, or exceeds a predetermined maximum during operation, power to the lamps is shut off, and the complete start cycle, including the time delay, must be undertaken before the lamps can be re-started. All leads and components are either potted or operated at an intrinsically safe power level.

Abstract: A miniature flashlight as disclosed to comprise a barrel, a tail cap, 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. One-way valves may be positioned at seal locations in association with passageways to allow venting of overpressure within the interior volume of the flashlight.

Abstract: An item of headgear attached with an EL light strip or strips includes a direct current power source for providing a direct current, a switch electrically connected to the direct current power source, a direct current/alternating current converter electrically connected to direct current power source via the switch for converting the direct current from the direct current power source to an alternating current with a predetermined frequency, a transformer electrically connected to the direct current/alternating current converter for amplifying the alternating current therefrom to have a predetermined voltage, a function stage electrically connected to the transformer for generating different pulses in response to reception the alternating current from the transformer, at least one EL light strip electrically connected to the function stage for receiving the pulses and activated thereby to light, a transparent enclosure for receiving the EL light strip therein, a colored transparent ink print or a nontranspare

Abstract: A miniature, adjustable beam flashlight having a switch control nut that is rotatable in first and opposite directions around the body of the flashlight for controlling a switch assembly in order to energize a lightbulb and adjust the light beam produced thereby. The switch assembly is interconnected with the switch control nut so as to move in first and opposite longitudinally extending directions through the body of the flashlight to complete or open an electrical conduction path between a battery supply and the lightbulb when the nut is rotated in the first or opposite directions around the body. The lightbulb is coupled to the switch assembly and adapted to move therewith in the first and opposite longitudinally extending directions so that the lightbulb is axially advanced relative to the body when the electrical circuit path is opened or retracted when the circuit path is completed.

Abstract: A lamp for a life jacket or raft is provided with a battery box (1,2) having a battery (7) and a light source (9) arranged in a lamp housing (6). The lamp may be switched on and off by screwing the lamp housing on and off. At its perphery the rotatable lamp housing (6) is provided with one or more line attachment means in the form of teeth (13) on a toothed ring (12), and a line (14) is releasably attached to one of the teeth so that a pull in the line will cause the lamp housing (6) to rotate and thus to switch on the lamp, following which the line is automatically released from the lamp housing.

Abstract: A new light device is disclosed which, in one aspect, has clear housing in which one or more tubular bulbs is positioned which has sockets and/or bulb mounts at each end, one or both of which prevent rotation of the tubular bulb in the housing. Fittings encapsulate each bulb end and socket/mount combination. In one aspect, a torque isolation member is used with a first top fitting. The top fitting is mated with a second top fitting so that the bulb(s) are clamped, held, and stabilized within the housing and so that such rotation does not result in rotation of the bulb(s) within the housing. In one embodiment a fluorescent bulb (or bulbs) is used and a ballast is interconnected with electrical conductors leading to the bulb. In one aspect the ballast is within the housing and in another aspect a battery is also within the housing. In one aspect the housing and related fittings are sealed so that the bulb(s) is within a water-tight enclosure.

Abstract: A lighting device comprises a waterproof housing in the form of an elongated flattened tube of substantially uniform transverse cross section that encloses a plurality of parallel tubular fluorescent lamps positioned lengthwise in the housing. The housing has two substantially parallel face walls of relatively large area and two connecting walls of relatively small area, at least one of the two substantially parallel face walls being transparent. The housing further comprises a watertight closed end and an open end having a rim that corresponds to the cross section of the housing at that end. A removable watertight cap covers the open end of the housing, the underside of the cap having a circumferential groove corresponding to the rim of the housing, and a gasket is positioned in the groove. The cross section of the housing is elongated transversely and is indented at each end thereof to form a lengthwise groove in the outer surface of each of the connecting walls of the housing.

Abstract: A location marker includes a casing, a switch assembly and a lens enclosing a flashable strobe lamp. The location marker is powered by batteries and an electronic circuit that converts the battery voltage to a trigger voltage for illumination of the strobe lamp. The switch assembly is non-intrusive and maintains water tight integrity inside the casing. The switch assembly futher includes a magnetically operable switch for selectively connecting and disconnecting two pairs of terminals. An R.F. transmitting location marker is also employed using a transmitter circuit and an antenna.

Abstract: A signal light comprising an elongate translucent tubular member formed of a light plastic material having a light source disposed therein for emitting illumination therefrom and providing guidance and orientation to aircraft and the like. A battery and a light bulb comprising a light source are housed entirely within the tubular member. A flush mounted switch is recessed entirely within a predetermined end of the tubular member to control an electrical connection between the battery and the light source. The signal light has a smooth continuous outer surface to provide structural rigidity and enable its use for visual signalling during both daytime and nighttime.

Abstract: A miniature flashlight as disclosed to comprise a barrel, a tail cap, 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. A spring is disposed between the tail cap and the batteries within the barrel to urge the batteries into contact with the center conductor on the second insulated receptacle, thereby urging the second and the first insulated receptacles in the same direction until the second insulated receptacle contacts the lip on the end of the barrel whereat the second conductor member is in contact with the lip. One-way valves may be positioned at seal locations in association with passageways to allow venting of overpressure within the interior volume of the flashlight.

Abstract: Including of a pressure relief valve assembly in conjunction with the body of a watertight/airtight flashlight. The pressure relief valve is to function to dissipate a pressurized hydrogen gas within the body of the flashlight and expel such into the ambient. The hydrogen gas is created by normal operation of the flashlight.

Abstract: The present invention provides a relatively lightweight elongated staff having a particularly well arranged strobe light and sign which provides an enhanced warning while maximizing its ease of transportability for the carrier and use.

Abstract: An electrically powered illuminating fish luring means for use in conjunction with a fishing line, is disclosed. The fish luring means comprises a water resistant protective housing having a generally hollow interior. There is a battery or batteries, a light emitting diode, and a movement actuated switch means in the form of a mercury switch, preferably a mercury tilt switch, securely retained within the protective housing. The mercury tilt switch is electrically connected in series with the batteries and the light emitting diode, for turning on and off the light emitting diode. The mercury tilt switch has a first terminal, a second terminal, and a mercury bead adapted to contact the first and second terminals so as to thereby connect the first and second terminals in electrically conductive relation with each other.

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 flashlight has a switch housing in between the battery compartment and reflector. The neck of the switch housing holds a lamp support at a central position within a reflector. A o-ring on the rear of the switch housing seals the battery compartment. The switch housing partially floats within the flashlight tube to allow for a slight adjustment of the lamp relative to the reflector to insure centering.

Abstract: A miniature flashlight as disclosed to comprise a barrel, a tail cap, 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. One-way valves may be positioned at seal locations in association with passageways to allow venting of overpressure within the interior volume of the flashlight.