Abstract: For moisture detection and prevention systems, the reduction or prevention of false positive and false negative alarms is of immense economic value. A method of discriminating the types of materials in contact with a capacitive detector can be easily implemented even for battery-powered devices and has already proven useful in testing in preventing false alarms, and discriminating various solutions.

Abstract: A solution to the problem one person tying down the rotor blades of a helicopter when the rotor blades are too high to be reached by a person standing on the ground involves a rotor blade tie down having a flat structure of two adjacent layers attached along three sides and open on one side to facilitate the placement of an end of the rotor blade in an interior of the device. An exterior surface of each of the layers of the flat structure has a member fixed thereto adjacent the open side of the tie down for receiving a rotor blade tie down installation tool. A tether has one end fixed to the tie down and a free end for attachment to a structural member of the helicopter. A helicopter rotor blade tie down installation tool is a pole having a pair of spaced apart substantially parallel arms fixed to the pole that extend away from the pole and are oriented substantially perpendicular to the pole to be received in the members on the exterior of the rotor blade tie down device.

Abstract: A device for supporting a camera to facilitate capturing stable images from a moving and vibrating platform, such as a helicopter includes a base plate and a vertical post attached to the base plate and extending upwardly from the base plate. A swing arm is fixed to the top of the vertical post in a manner that allows the swing arm to pivot around a vertical axis of the vertical post. A handle is attached to the swing arm and extends upwardly from the swing arm Suspended from the handle below the swing arm is a fixture for supporting the camera. The fixture supporting the camera includes that reduce the transmission of vibrations and shocks to the camera. The device for supporting a camera can be secured in place inside a helicopter without altering the structural integrity of the helicopter.

Abstract: A device for supporting a camera to facilitate capturing stable images from a moving and vibrating platform, such as a helicopter includes a base plate and a vertical post attached to the base plate and extending upwardly from the base plate. A swing arm is fixed to the top of the vertical post in a manner that allows the swing arm to pivot around a vertical axis of the vertical post. A handle is attached to the swing arm and extends upwardly from the swing arm Suspended from the handle below the swing arm is a fixture for supporting the camera. The fixture supporting the camera includes that reduce the transmission of vibrations and shocks to the camera. The device for supporting a camera can be secured in place inside a helicopter without altering the structural integrity of the helicopter.

Abstract: A solution to the problem one person tying down the rotor blades of a helicopter when the rotor blades are too high to be reached by a person standing on the ground involves a rotor blade tie down having a flat structure of two adjacent layers attached along three sides and open on one side to facilitate the placement of an end of the rotor blade in an interior of the device. An exterior surface of each of the layers of the flat structure has a member fixed thereto adjacent the open side of the tie down for receiving a rotor blade tie down installation tool. A tether has one end fixed to the tie down and a free end for attachment to a structural member of the helicopter. A helicopter rotor blade tie down installation tool is a pole having a pair of spaced apart substantially parallel arms fixed to the pole that extend away from the pole and are oriented substantially perpendicular to the pole to be received in the members on the exterior of the rotor blade tie down device.

Abstract: A coupling having one end attached to a drop pipe of a fire sprinkler system and another end for attachment to a tool subsequent to initially testing the sprinkler system and to a sprinkler head thereafter. The coupling includes an internal frangible closure member to prevent flow of fluid from the drop pipe during the test phase so that the sprinkler may be pre-tested prior to attachment of the sprinkler head. The tool includes an external housing which after completion of the test phase is connected to the coupling, a ram being mounted within the housing and adjustable to position and impact member at the end of the ram at or in abutment with the frangible closure member. The ram is connected to a propelling assembly which permits the ram to be pulled manually against the biasing force of a spring away from the closure member, and upon release of the ram, the ram is propelled toward the closure member so that the impact member shatters the closure member to open communication through the coupling.