Abstract: An emergency location device with a deployable rescue balloon is presented. The balloon is housed in tube body in its stowed state with a frangible foil holding it in place at the proximal edge of the tube body. The device includes a ball valve attached to the opposite end of the balloon and further coupled to a charger valve. The charger valve includes a piercing needle configured to pierce a helium pressure tank thereby deploying and inflating the rescue balloon. The helium tank, the charger valve, and the ball valve are all enclosed in the lumen of the tube body. The balloon is attached to the inside of the tube body via a lanyard, which unravels when the balloon is deployed. A threaded cap coupled to the distal end of the tube body, which is also used to deploy the balloon, secures the helium pressure tank in the tube body.

Abstract: An emergency location device with a deployable rescue balloon is presented. The rescue balloon is housed in tube body in its stowed state with a frangible foil holding it in place at the proximal edge of the tube body. The location device includes a ball valve attached to the opposite end of the rescue balloon and further coupled to a charger valve. The charger valve includes a piercing needle configured to pierce a helium pressure tank thereby deploying and inflating the rescue balloon. The helium tank, the charger valve, the ball valve are all enclosed in the lumen of the tube body. The rescue balloon is attached to the inside of the tube body via a lanyard, which unravels when the balloon is deployed. A threaded cap coupled to the distal end of the tube body, which is also used to deploy the rescue balloon, secures the helium pressure tank in the tube body.

Abstract: A platform for preservation of a crime scene is provided. The apparatus comprises a modular base with foot pegs. The foot pegs may be telescopic to allow for adaptation to any crime scene. The foot pegs are configured to have minimal footprint on the crime scene. The modular base is couplable to one or more modular bases, one or more stair adapters and to one or more optional components such as equipment platform and a workstation. The platform is portable and configured to be assembled at the crime scene.

Abstract: A unitary candle filter employs a wrapping of continuous filamentary ceramic material in the form of a yarn or twine wrapped over a porous ceramic support tube to hold the support structure intact during a high pressure backwash operation. A thin filtering layer of a ceramic material is deposited over the support structure and the wrapping is embedded in the filtering layer.

Abstract: The present invention is a combined gas flow resistance device and safety shield which incorporates a plurality of narrow parallel passageways through which filtered gas from a plurality of filter elements passes to a clean gas outlet. The device also has inlet for carrying pulses of high pressure gas to the downstream side of a plurality of filter elements, and a porous safety shield connected across the passageways to prevent solid particles from passing from the filter elements to the clean gas outlet.

Abstract: A combined hold-down and manifold member is formed of ceramic and holds a plurality of candle filters in sealing engagement with a ceramic tube sheet from which the filters are supported. The hold-down and manifold member supports a plurality of gas nozzles over the open ends of the candle filters to direct pulses of cleaning gas into the filters.