Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 6140658 | Combustion heated honeycomb mantle infrared radiation An infrared radiation source is provided by directing combustion gases through a honeycomb mantle along the axis of symmetry thereof. The honeycomb mantle is formed of individual tubes disposed at an angle to the axis of symmetry of the mantle and is clos... | 10/31/2000 |
| 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 cover is fixed over the light emitting opening and means are p... | 02/16/1999 |
| 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 deposited in each cavity over the primer vent and a prime... | 02/16/1999 |
| 5720610 | Photoflash lamp array A compact photoflash lamp array, includes a substrate having a plurality of electrical conductors leading to an array of igniter links with a combustible mass deposited over each igniter link. A grid is bonded to the substrate for forming a corresponding ... | 02/24/1998 |
| 4462063 | Photoflash unit having optical system including aspheric lens to enhance light output A photoflash unit employing an optical system or apparatus with improved center beam candle power seconds and zonal lumen seconds from the flash lamp therein, said unit also employing a minimized utilization ratio of lamp-to-package cross-sectional area. ... | 07/24/1984 |
| 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 from the unit's housing and serves to connect the entire arr... | 01/03/1984 |
| 4404618 | Flash device A flash device of the type in which the flash tube is coated with a trigger electrode and is positioned in contact with the back metal constituting part of the reflector so that when the trigger signal is applied directly to the back metal, the flash tube... | 09/13/1983 |
| 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 within the device's light-transmitting, plastic housing. Th... | 08/31/1982 |
| 4329734 | Flash lamp array having electrical shield A photoflash lamp array comprising a housing elongated vertically and containing elongated flash lamps lying horizontally and stacked vertically, the flash lamps having lead-in wires extending from ends thereof near the sides of the housing and connected ... | 05/11/1982 |
| 4325771 | Method of making a die-stamped circuit board assembly for photoflash devices A circuit board assembly and method of making wherein the assembly includes a dielectric substrate, at least one radiation sensitive switch, and at least one conductive member in electrical contact with the switch. Portions of the switch and the conductiv... | 04/20/1982 |
| 4270897 | Photoflash lamp construction and method of making same A high-voltage type photoflash lamp filled with a filamentary combustible material and oxygen and having an ignition structure including a pair of spaced-apart lead-in wires sealed in one end of the glass envelope of the lamp and encapsulated within an in... | 06/02/1981 |
| 4249887 | Photoflash lamp having gap-fire ignition mount, and method of making the mount The reliability of a photoflash lamp which is fired by a high-voltage pulse is improved by fabricating the flash-ignition mount from a glass bead, a glass sleeve and a pair of lead-in wires that have inwardly-bent end portions which define a gap of precis... | 02/10/1981 |
| 4249230 | Photoflash unit utilizing circuit board having flashlamps clamped thereto A multilamp photoflash unit which includes an elongated housing, a circuit board located within a longitudinal channel within the housing, and several (e.g. six) electrically-activated flashlamps. The flashlamps utilize preformed lead-in wires which are c... | 02/03/1981 |
| 4245280 | Multilamp photoflash unit construction A photoflash unit comprising a linear array of flashlamps mounted on a printed circuit strip disposed within the longitudinal channel of an elongated housing member. A light-transmitting cover panel is attached to the housing member for enclosing the flas... | 01/13/1981 |
| 4245279 | Photoflash unit with inverted flashlamps A multilamp photoflash unit including an elongated plastic housing having a longitudinal channel therein. Within the channel is positioned a thin, flat circuit board to which are connected several (e.g. six) flashlamps arranged in a linear array. The lamp... | 01/13/1981 |
| 4136376 | Photoflash lamp array circuit board having electrical insulation An electrically insulative adhesive coating for a circuit board used with a photoflash lamp array to provide sequential firing of the flash lamps. The circuit board includes the lamp firing circuitry along with switching elements connected in said circuit... | 01/23/1979 |
