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5871346 |
Flashlamp array venting structure
A compact flash lamp array includes a housing defining a plurality of cavities, each cavity having a light emitting opening and an exhaust vent and containing a combustible mass. A transparent...
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5871345 |
Percussively fired flash lamp array
A compact flash lamp array includes a housing defining a plurality of cavities. Each cavity has a light emitting opening and a primer vent opposite the light emitting opening. A combustible mass is...
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5871344 |
Flash lamp array with porous vent
A compact flash lamp array includes a housing defining a plurality of cavities, with each cavity having a light emitting opening and a combustible mass deposited in each cavity. A firing means such...
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5829860 |
Variable number multi-lamp flash carrier and camera
A multi-lamp flash carrier comprises a plurality of flash lamps and a lamp support for arranging the individual lamps in a spatial succession. The lamp support includes respective lamp holders for...
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5761551 |
Compact camera with multi-lamp flash wheel rotatable about film chamber
A camera comprising a main body part having a film chamber, and a multi-lamp flash wheel supported for rotation to move successive flash lamps from a storage to a use position for illuminating a...
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5752104 |
Multi-lamp flash wheel and camera
A camera is intended to be used with a multi-lamp flash wheel having flash lamps that are tilted from storage orientations to ignition orientations as the respective lamps are moved to behind a...
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5708866 |
Camera selects unused flash bulb farthest from taking lens to reduce red-eye effect when camera-to-subject distance within near range
A camera intended to be used with a multiple flash bulb unit selects an unused flash bulb farthest from the taking lens to reduce a red-eye effect when a near range camera-to-subject distance is...
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5641284 |
Flash bulb cartridge for light guns
An ultra high intensity flash cartridge is provided for light guns. The ultra high intensity of the flash is obtained by sealing fast burning filaments of magnesium inside a glass bulb containing...
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5641222 |
Light gun
A hand-held multiple-shot flash generator is presented for temporarily blinding an assailant at a distance. The light is generated by a plurality of ultra high intensity flash bulbs containing a...
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4732560 |
Humidity protected radiation-responsive switch
A multilamp photoflash unit responsive to either a high pulse potential source or a low voltage source includes normally open (N/O) switches having a composition which includes an admixture of...
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4717336 |
Flashed-lamp indicator
An improved flashed-lamp indicator composition comprising a volatile dye, a nonvolatile particulate heat-absorbing material; a binding agent; and inert platelet-shaped particles having an average...
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4690637 |
Side-mounted flashlamps
A miniaturized multilamp photoflash array includes a printed circuit board with a common circuit extending along one edge and a plurality of contact pads along an opposite edge and a plurality of...
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4676738 |
Miniaturized photoflash array fabrication process
A process for manufacturing a miniaturized multilamp photoflash array includes a switch fabricating process wherein a strip of N/C switching material is fabricated, affixed to a circuit board and...
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4664622 |
Multilamp photoflash device with improved coating
A multilamp photoflash device comprising an outer housing containing a plurality of flashlamps and means for sequentially flashing the flashlamps of the device and having an antistatic coating on...
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4661058 |
Stabilized silver compound switch
A multilamp photoflash array responsive to either a relatively high or relatively low pulse potential includes normally open (N/O) switches formed from an admixture including silver carbonate...
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4659307 |
Aluminum hydroxide stabilized switch
A multilamp photoflash array responsive to either a relatively high or relatively low pulse potential includes normally open (N/O) switches formed from an admixture including sliver carbonate...
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4581682 |
Prismatic sympathetic flash barriers
A miniaturized multilamp photoflash array including a transparent plastic cover member with the cover member having at least one prismatic barrier divider extending outwardly therefrom between a...
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4553928 |
Switching device for photoflash unit
An improved multiple flashlamp array is disclosed having a plurality of low voltage type lamps fired individually and in sequence by means of a plurality of static solid switching devices capable...
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4515558 |
Encapsulated photoflash device having a radiant energy-activated disconnect switch as part of the circuitry thereof
A photoflash device which includes a plastic substrate, lamp-firing circuitry located on a first surface of the substrate, a disconnect switch also secured to the first surface of the substrate and...
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4498883 |
Method of encapsulating a photoflash lamp using a powdered resin
A method of forming a protective coating on a glass envelope of a photoflash lamp. The method comprises the steps of orienting the lamp within a mold member such that the external surfaces of the...
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4496311 |
Multilamp photoflash array fabrication
A multilamp photoflash array and fabrication process is provided wherein electrically conductive leads of a plurality of flashlamps are embedded in and wrapped about the ends of a plastic reflector...
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4493639 |
Conductive ink for flashlamp array circuit
A modified carbon ink for a flash lamp array circuit containing a particulated electrically conductive material such as graphite or metal flakes, metal-coated glass spheres and the like. The...
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4487574 |
Switching device for photoflash unit
A multiple flashlamp array is disclosed having a plurality of lamps fired individually and in sequence by means of a plurality of static solid switching devices capable of reliable actuation by...
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4478571 |
Photoflash array humidity protected switches
A moisture barrier for radiation-responsive switches which includes an admixture of particles and forms a part of a multilamp photoflash array comprises a thin, radiation-transparent and/or...
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4472153 |
Subminiature array fabricating process
A process for fabricating a miniaturized multilamp photoflash array includes the steps of forming a printed circuit board having electrical contact pads thereon and a plurality of shaped holes...
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4470801 |
Photoflash unit with circuit pattern for redundant switching of lamps
A photoflash unit comprising a plurality of 2n flashlamps attached to a printed circuit board and disposed in a linear array with the longitudinal axes of respective lamps aligned in parallel....
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4459102 |
Crossover switch
A multilamp photoflash array has a circuit board with a printed circuit thereon and a plurality of flashlamps connected to the printed circuit with a normally open (N/O) switch of electrically...
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4444552 |
Subminiature array circuitry
A miniaturized multilamp photoflash array having a circuit board with a printed circuit thereon and a multiplicity of flashlamps electrically connected to the printed circuit with a continuous...
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4435156 |
Subminiature array with normally closed and normally open switches
A miniaturized multilamp photoflash array having a plurality of flashlamps affixed to a printed circuit on the inner surface of a circuit board with a continuous strip of switching material forming...
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4432723 |
Multilamp photoflash unit with improved quick-disconnect switch
An improved quick-disconnect switch for use in a multilamp photoflash unit containing a plurality of flashlamps and circuit means for sequentially igniting the flashlamps, in which the switch is...
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4427369 |
Switch paste with silver-coated metal beads
A photoflash unit in the form of a multilamp photoflash array has at least one normally open (N/O) radiation-responsive switch which includes an admixture containing silver-coated metal particles.
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4427368 |
Subminiature array with retaining reflector
A miniaturized multilamp photoflash array includes an envelope with a printed circuit of spaced electrical conductors on an inner surface, a plurality of flashlamps each having a pair of...
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4424020 |
Miniature photoflash unit using subminiature flash lamps
An electrically-activated, miniature photoflash unit which includes a plurality (e.g., ten) of subminiature high voltage flash lamps arranged in a planar array. A singular mounting tab protrudes...
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4420301 |
Miniature multilamp photoflash array
A miniaturized multilamp photoflash array includes a housing member having a back portion with a printed electrical circuit on one surface thereof and a light transmittable front portion affixed to...
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4410307 |
Conductive ink for flash lamp array circuit
A modified conductive ink is provided for a photoflash array having a plurality of high voltage flash lamps connected to a lamp firing circuit pattern deposited on a circuit board with...
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4388606 |
Sequential photoflash array and fabrication employing radiation-activated switches
A self-sequencing multilamp photoflash array responsive to a low voltage source includes radiation-responsive switches having a pair of electrical conductors spaced by a switch paste comprising a...
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4385888 |
Vacuum-formed housing array
A multilamp photoflash array includes a plurality of interdigitated flashlamps connected to a printed circuit board and disposed within a housing member having a pair of substantially identical...
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4382774 |
Spark gap switch
A flashlamp unit for individual and sequential firing of flashlamps includes a pair of flashlamps connected in an electrical circuit with a radiation-responsive N/O arc gap switch in series...
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4380749 |
One-time electrically-activated switch
A one-time electrically-activated switch is composed of a cured polymeric binder which contains a powdered conductive material in an amount sufficient to establish particle-to-particle contact...
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4379690 |
Photoflash switching array and fabrication utilizing silver-oxide coated solids
A sequentially operable multilamp photoflash array includes a plurality of radiation-responsive normally open (N/O) connect type switches which are prepared from a composition which includes a...
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4375955 |
Flash lamp array circuit with improved fuse means
A flash lamp array circuit having radiation-sensitive switches and fuse elements being connected in the conductive carbon ink circuit pattern wherein each of said fuse elements comprises a...
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4375953 |
Miniature photoflash unit with encapsulated flash lamps
A miniature photoflash unit which is electrically activated when the unit is electrically connected to a power source (piezoelectric crystal) associated with many of today's pocket type cameras....
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4373906 |
Multi-lamp photoflash unit and fabricating process
A multi-lamp photoflash unit includes a housing member having a plurality of spaced cavities in a back portion and a light transmittable front portion formable to enclose the cavities, a reflector...
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4363622 |
Combustion flashbulb
Combustion flashbulbs according to the invention have a light-pervious lamp envelope (1) filled with a tangled mass (5) of actinically combustible metal strips and an oxidizing gas. Current supply...
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4355971 |
Vented multi-lamp photoflash unit
Venting apertures for multi-lamp photoflash units having a plurality of spaced flashlamp receiving cavities are provided intermediate the cavities whereby no direct path for fragments from a...
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4347053 |
Photographic flash device using light-emitting pyrotechnic charges
A photographic flash device which includes several pyrotechnic charges for emitting light upon electrical ignition thereof. Each charge is centrally suspended within an individual chamber located...
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4345895 |
Photoflash device having die-stamped circuit board assembly with flexure means to prevent switch cutting
A photoflash device circuit board assembly including a dielectric substrate, switching element, and conductive member. The switching element and conductive member are pressed (e.g., die-stamped)...
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4344109 |
Flash lamp array having printed circuit
A flash lamp array having a plurality of high-voltage flash lamps in front of a reflector unit and a circuit board behind the reflector unit and carrying a plurality of circuit runs of relatively...
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4344108 |
Flash lamp array having printed circuit
A flash lamp array having a plurality of high-voltage flash lamps in front of a reflector unit and a circuit board behind the reflector unit and carrying a plurality of circuit runs of relatively...
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4336570 |
Radiation switch for photoflash unit
A photoflash unit having a plurality of flashlamps mounted on a printed circuit board containing circuitry for sequentially igniting the flashlamps in response to successive firing pulses applied...
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