Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 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 subject to be photographed. The multi-lamp flash wheel is ro... | 06/02/1998 |
| 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 flash emission window. Tilting the flash lamp to its ignition... | 05/12/1998 |
| 5649242 | Multi-lamp flash wheel and camera In a camera, a circular array of flash lamps is arranged radially with respective ignition ends of the lamps closer to one another than respective opposite ends of the lamps. Each one of the lamps has respective ignition stems projecting from the ignition... | 07/15/1997 |
| 4330821 | Radiation switch for photoflash unit A photoflash unit having a plurality of flashlamps mounted in a planar array on a printed circuit board containing circuitry for sequentially igniting the flashlamps in response to successive firing pulses applied thereto. The circuitry includes a plurali... | 05/18/1982 |
| 4298908 | Flashlamp disk containing internal reflectors A disk-shaped flashlamp unit for use within an indexing means or mechanism associated with a camera. The unit includes several, e.g. ten, electrically-activated flashlamps radially disposed within the unit's plastic, light-transmitting housing. A pair of ... | 11/03/1981 |
| 4234304 | Circuit board having conductor runs resistant to formation of non-conductive localized areas and method An improved circuit board comprising a substrate having electrical conductor runs resistant to the formation of electrically non-conductive localized areas carried thereon. Such a circuit board is particularly adapted to use with a flash lamp array having... | 11/18/1980 |
| 4170034 | Multilamp photoflash unit with more reliable circuit arrangement In a compact multilamp photoflash arrangement for providing more lamps in a given volume, a reliable sequencing circuit of normally open and normally closed switches is provided by employing a series-parallel combination of the normally open switches whic... | 10/02/1979 |
| 4136377 | Foldable photoflash lamp unit An electrically-activated photoflash lamp unit including a linear array of lamps positioned within a housing which pivots about the unit's coupling means. The coupling means includes an elongated body member having a connector tab at one end thereof for p... | 01/23/1979 |
| 4101259 | Multilamp photoflash assembly with rotatable actuator A multilamp photoflash assembly comprising a housing defining two adjacent regions therein, a plurality of flashlamps within one of said regions having at least one pre-energized striking mechanism associated with each of said lamps, and a rotatable actua... | 07/18/1978 |
| 4098565 | Flashlamp unit A flashlamp unit consisting of a module having a number of flashlamps carried on a disk shaped support, successive flashlamps are positioned proximate to a reflector as the support is indexed. The flashlamps are arranged radially on the support in such ma... | 07/04/1978 |
| 4014033 | Percussive flash unit operating mechanism A unique percussive flash unit includes an initially cocked striker and flash unit rotating assembly, which includes a main member with an inclined laterally projecting cam-forming wall having an inclined cam face which engages and cams outwardly a latera... | 03/22/1977 |
| 3991308 | Multiflash unit, particularly flashcube A reflector body for flashcubes containing mechanically ignitable flashbu, said reflector body having a base edge length of ࣘ 25 mm and a ratio of base edge length to lateral edge length of ࣙ 1 and forming four individual reflectors. The individual r... | 11/09/1976 |
| 3980421 | Flash lamp unit A flash lamp unit having at least one row of flash lamps which are arranged on a common elongate support and which can be fired by a stroke against a lamp portion, which flash lamp unit comprises a number of striker springs which are locked in the pre-ene... | 09/14/1976 |
| 3947221 | Personal protection device using flashcubes An attachment for converting a standard camera flashbulb unit into a personal defense device for use against criminals. The attachment consists of a support element adapted to be attached to a standard flashbulb unit, the support element being provided wi... | 03/30/1976 |
| 3937946 | Multiple flash lamp unit A multiple photoflash lamp unit is connectable to a camera in different orientations in each of which a different group of the lamps is relatively farthest from the camera lens axis. The lamps are arranged so that in any of the orientations of the unit wi... | 02/10/1976 |
| 3935442 | Photoflash lamp array having electrically connected reflector A photoflash lamp array comprising a plurality of flash lamps having lead-in wires connected to a circuit board carrying switching circuitry for sequentially firing the flash lamps. An electrically conductive reflector unit is positioned between the lamps... | 01/27/1976 |
