Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 6968785 | Locking and stabilizing device for grenades The locking and stabilizing device for grenades utilizes a solid nylon ring and multiple nylon ribbons that are attached to the ring at regular intervals around its circumference. During storage, the ring surrounds and locks the slider of the grenade in its storage ... | 11/29/2005 |
| 6082267 | Electronic, out-of-line safety fuze for munitions such as hand grenades A munitions fuze implements an operating mechanism comprising a piston, operating rod and toggle body bearing a detonator, aligned in a cavity within a munitions housing. In the safe condition the toggle body is out of line with a transfer lead and output... | 07/04/2000 |
| 5902953 | Miniature, low power, electromechanical safety and arming device The blocking disc serving as an explosive train interrupter of a safety and rming mechanism is angularly displaced from its safe position by a stepping motor through reduction gearing in response to timed energizing pulses applied thereto from a crystal-co... | 05/11/1999 |
| 5594195 | Miniature, low power, electromechanical safety & arming device The blocking disc serving as an explosive train interrupter of a safety and rming mechanism is angularly displaced from its safe position by a stepping motor through reduction gearing in response to timed energizing pulses applied thereto from a crystal-co... | 01/14/1997 |
| 5396845 | Modular fuze A fuze or igniter provided with an adjustable electronic unit (24), a separate energy supply (40) as well as a mechanical safety device (26). In order for this fuze to be independent of the weapons system and not be bound to a particular type of payload, ... | 03/14/1995 |
| 5198615 | Fuzing system for tandem demolition warheads A fuzing system for use in operating tandem demolition warheads to sequentially activate a propellant on the rear of a follow through charge, detonate a forward shaped charge and detonate the follow through charge after a brief delay. An interface charge ... | 03/30/1993 |
| 4599945 | Out-of-line interrupter ignition system for flares and markers A hollow pivot pin, with an exposed primer at its side, holds boron potassium nitrate pellets 78 for igniting a flare. A spring-loaded firing pin mechanism is attached radially to the pivot pin and is swung about it by a parachute lanyard. When the firing... | 07/15/1986 |
| 4483250 | Flare manual safety device A manually rotatable cylindrical valve member forms a physical barrier in a "safe" position between a firing pin-primer charge and pyrotechnic flare ignition material. The valving member has a passage through it that, in the "armed" position, is in alignm... | 11/20/1984 |
| 4474112 | Arming firing relock device An arming firing relock device includes a resiliently biased handle lock, a rive shaft, an output shaft or keyed member and a pivot block which may be attached to the exterior surface of a rocket motor. The output shaft may be connected to drive a rocket m... | 10/02/1984 |
| 4314614 | Method and apparatus for disarming and arming explosive oil well perforators An improved safe-arm method and apparatus is provided for preventing unwanted detonation of shaped charge perforating guns while in storage and in transport, yet providing quick and easy arming at the well site. An interrupter member is inserted within an... | 02/09/1982 |
| 4296689 | Rotary locking mechanism A mechanism for immobilizing an arming shaft to preclude axial movement of he shaft until its release is desired, comprising a base and rotor mounted thereon. The rotor holds hardened metal balls in engagement with a circumferential groove on the shaft to ... | 10/27/1981 |
| 4292895 | Explosive safe-arming apparatus for perforating guns An explosive safe-arming apparatus for use with a perforating gun which includes a fixed barrier disposed between a detonator explosive and a booster explosive, and a movable barrier disposed between laterally facing portions of the detonator and booster ... | 10/06/1981 |
| 4202271 | Safe and arm device A safe and arming device used with electrically operated fuses of a missile nd including a housing with an acceleration responsive device rotatably mounted therein between safe and arming positions and biased into the safe position by a spring and actuatab... | 05/13/1980 |
| 4172421 | Fluid desensitized safe/arm detonator assembly Disclosed is a safe/arm detonator assembly for use with an oil well perforating gun assembly having two housing members sealingly isolated from well bore fluid and which are rotatable from a safe position wherein a detonator and a booster are held out of ... | 10/30/1979 |
| 4058061 | Explosive device This disclosure concerns an explosive device, such as a mine, which comprises a flexible enclosure having a pair of separate chambers formed therein. Substantially non-explosive liquids, which when mixed form a liquid explosive material, are respectively ... | 11/15/1977 |
