Other

Northrop Grumman Systems Corporation

Wade E Collins

Edward Franklin Stephens, Iv

Andrew M Singleton

Edward F Stephens

Michael L Fisher

Kevin L Callan

Francis L Struemph

Ryan M Crittenden

An ammunition cartridge including a case, an ignitable material within the case and an optical primer for igniting the ignitable material. The optical primer includes a conductive cylindrical cup electrically coupled to the case and a circular conductive button including a top button portion positioned in the cup and a bottom button portion extending through an opening in the cup, where the button and the cup are electrically isolated. The optical primer further includes a first bracket electrically coupled to the button, a second bracket electrically coupled to the cup, and a pair of laser diodes electrically coupled in a reverse parallel direction and being electrically coupled to the first and second brackets, where one of the laser diodes generates a laser beam that ignites the ignition material in response to a current flow in either direction through the case, the cup and the button.

Ammunition cartridge including an optical primer

An optical primer for igniting an ignition material in an ammunition cartridge. The primer includes a conductive cylindrical cup electrically coupled to a cartridge case and a circular conductive button including a top button portion positioned in the cup and a bottom button portion extending through an opening in the cup, where the button and the cup are electrically isolated. The primer further includes a first bracket electrically coupled to the button, a second bracket electrically coupled to the cup, and a pair of laser diodes electrically coupled in a reverse parallel direction and being electrically coupled to the first and second brackets, where one of the laser diodes generate a laser beam that ignites the ignition material in response to a current flow in either direction through the case, the cup and the button.

Voltage polarity immunity using reverse parallel laser diodes

Described are riser assemblies suitable for use with fluid dispensers. The assemblies include a container partially circumscribing a reservoir configured to contain a pressurized fluid, the container having a fluid inlet and a fluid outlet disposed therethrough. The assemblies may further include a signal processor situateable outside the container that is configured to receive a signal. The signal processor may be operatively connectable to a control valve that is operatively connectable to the fluid dispenser. The control valve may be configured to selectively control expulsion of the fluid through the fluid dispenser in response to the signal received by the signal processor. Embodiments of the riser assemblies include a utility conduit disposed at least partially within the reservoir and configured to enable secondary use of a resource from within the riser assembly and/or to accommodate transport and securing of the riser assemblies for use.

Riser assemblies with pass-through utility conduits

Riser assemblies with utility conduits

Riser assemblies with utility conduits and methods for operating a riser assembly

Described is a riser assembly for use with a fluid dispenser, such as a sprinkler. The assembly includes a container partially circumscribing a reservoir configured to contain a pressurized fluid, the container having a fluid inlet and a fluid outlet disposed therethrough. The assembly further includes a signal processor situatable outside the container that is configured to receive a signal. The signal processor is operatively connectable to a control valve that is operatively connectable to the fluid dispenser. The control valve is configured to selectively control expulsion of the fluid through the fluid dispenser in response to the signal received by the signal processor.

Riser assembly for use with fluid sprinkler

The invention is riser assembly for use with a fluid dispenser particularly a sprinkler. The assembly includes: () a container partially circumscribing a reservoir for containing a pressurized fluid, the container having a fluid inlet and a fluid outlet disposed therethrough, and () a conduit circumscribing a channel occupiable by a signal carrier, the conduit including an intermediate conduit portion disposed within the reservoir, a first conduit portion disposed through the container to a signal carrier entry area outside the container and a second conduit portion disposed through the container to a signal carrier exit area outside the container. The assembly may include a cover connectable to the container, the cover having an aperture for containing the fluid dispenser disposed therethrough, a protective cavity being formed between the cover and the container.

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The Dalles, OR, United States of America

Wade E Collins