Abstract: An antenna assembly is provided for mounting on a predetermined support structure positioned on a surface, the support structure having a peripheral edge at an elevated position above the surface. The antenna assembly includes an antenna and a support for supporting the antenna at an elevated position above the surface when mounted on the support structure. The support is adapted to support the antenna at a sufficient height above the surface to provide a direct path for electromagnetic radiation from at least a portion of the antenna to a position on the surface external of the peripheral edge of less than or equal to about 4.5 meters from substantially any point on the peripheral edge, or to a position on the surface at a point positioned 3 meters from the front of the support structure and 3 meters from a side of the support structure.

Abstract: An apparatus includes an antenna for transmitting RF radiation and being structured to enable the distribution of RF energy emitted therefrom to be varied in the vertical plane. The apparatus comprises a generator for generating an RF signal and to pass the signal to the antenna, and a controller arranged to control the distribution of RF energy emitted from the antenna in the vertical plane in response to positional information about an object.

Abstract: An apparatus as provided for measuring acceleration of a person's head or other object. The apparatus comprises a sensor for sensing acceleration and a controller for controlling recording of data resulting from the sensed acceleration due to an explosive force. The controller is adapted to determine whether or not to enable recording of the data based on the sensed acceleration. A data receiver is provided to receive the sensed acceleration data from the sensing means, and requires electrical power to enable data to be received thereby. The controller controls electrical power to the receiver so that if the sensed acceleration reaches or exceeds a predetermined value, electrical power to the data receiver is enabled. The recorded acceleration data may be used for injury analysis.

Abstract: A cooling system for a vehicle comprises a compressor for compressing refrigerant, the compressor being adapted to be driven by a power source installed in the vehicle, a condenser for receiving compressed refrigerant from the compressor, an expansion device for expanding refrigerant from the condenser, and a liquid-to-liquid heat exchanger for receiving refrigerant from the expansion device and exchanging heat between the refrigerant and a liquid. The liquid may comprise a coolant, and a pump may be provided for pumping the coolant through the heat exchanger to a point of use such as a cooling garment to cool personnel on board the vehicle. Alternatively, the liquid may be a drinkable liquid which is pumped through the heat exchanger to a suitable dispensing system to provide an on-board supply of cool drinking liquid.

Abstract: A cooling system for a vehicle comprises a compressor for compressing refrigerant, the compressor being adapted to be driven by a power source installed in the vehicle, a condenser for receiving compressed refrigerant from the compressor, an expansion device for expanding refrigerant from the condenser, and a liquid-to-liquid heat exchanger for receiving refrigerant from the expansion device and exchanging heat between the refrigerant and a liquid. The liquid may comprise a coolant, and a pump may be provided for pumping the coolant through the heat exchanger to a point of use such as a cooling garment to cool personnel on board the vehicle. Alternatively, the liquid may be a drinkable liquid which is pumped through the heat exchanger to a suitable dispensing system to provide an on-board supply of cool drinking liquid.

Abstract: A cooling system for a vehicle comprises a compressor for compressing refrigerant, the compressor being adapted to be driven by a power source installed in the vehicle, a condenser for receiving compressed refrigerant from the compressor, an expansion device for expanding refrigerant from the condenser, and a liquid-to-liquid heat exchanger for receiving refrigerant from the expansion device and exchanging heat between the refrigerant and a liquid. The liquid may comprise a coolant, and a pump may be provided for pumping the coolant through the heat exchanger to a point of use such as a cooling garment to cool personnel on board the vehicle. Alternatively, the liquid may be a drinkable liquid which is pumped through the heat exchanger to a suitable dispensing system to provide an on-board supply of cool drinking liquid.

Abstract: An antenna assembly is provided for mounting on a predetermined support structure positioned on a surface, the support structure having a peripheral edge at an elevated position above the surface. The antenna assembly includes an antenna and a support for supporting the antenna at an elevated position above the surface when mounted on the support structure. The support is adapted to support the antenna at a sufficient height above the surface to provide a direct path for electromagnetic radiation at least a portion of the antenna to a position on the surface external of the peripheral edge of less than or equal to about 4.5 meters from substantially any point on the peripheral edge, or to a position on the surface at a point positioned 3 meters from the front of the support structure and 3 meters from a side of the support structure.

Abstract: An apparatus is provided for recording information about an event resulting in application of a force to a body. The apparatus comprises data recording means for recording the information, sensor means for sensing a parameter which enables a predetermined source of force to be distinguished from another, different source of force, and control means responsive to the sensed parameter for controlling the data recording means. The sensor means may comprise a pressure sensor for sensing shockwaves resulting from an explosive force and the resulting signal used to distinguish from other events, such as blunt impacts. The pressure signal may be used to control the storage of acceleration data for injury analysis.

Abstract: A head protection system comprises a helmet shell, a visor mounting for pivotally mounting a visor to the shell to enable the visor to be moved between raised and lowered positions, and a retainer for releasably retaining the visor to the helmet. The system includes a visor adapted for mounting on the shell which comprises a substrate of transparent thermoplastic material and a backing substrate comprising a plurality of layers of high performance, ballistic resistant material. The system may further include a second visor which can be releasably connected to the shell using the same visor mounting and which may have a different construction and primary function.

Abstract: A face protector comprises a protective structure shaped for extending about a person's mandibular region and a mounting for mounting the face protector to a military combat helmet. The protective structure comprises a front portion and opposed left and right side portions extending from the front portion, the front portion having a free upper edge for positioning below eye level and above mouth level when mounted to the helmet, and being size to extend to below a person's chin. The front portion has inner and outer surfaces, and the mounting is positioned to space the inner surface and the upper edge away from the person's mouth and nose when mounted to the helmet to provide a gap for the passage of ambient air therebetween to permit unobstructed breathing. The protective structure comprises a ballistic resistant material for providing protection against high velocity fragments from explosive devices.

Abstract: A container comprises a chamber for accommodating one or more components whose temperature is to be controlled, and a heat transfer device for receiving heat transfer fluid for controlling the temperature of the chamber. The chamber has a fluid inlet for introducing a second fluid into the chamber and a fluid inlet permitting the second fluid to exit from the chamber. A fluid impeller is provided for causing the second fluid to flow in heat: exchange relationship with the heat transfer device and into the chamber through the fluid inlet to cool one or more components in the chamber. A fluid coupling is provided for coupling the heat transfer device to a fluid temperature conditioning system installed in a vehicle.

Abstract: An apparatus includes an antenna for transmitting RF radiation and being structured to enable the distribution of RF energy emitted therefrom to be varied in the vertical plane. The apparatus comprises a generator for generating an RF signal and to pass the signal to the antenna, and a controller arranged to control the distribution of RF energy emitted from the antenna in the vertical plane in response to positional information about an object.

Abstract: An antenna assembly is provided for mounting on a predetermined support structure positioned on a surface, the support structure having a peripheral edge at an elevated position above the surface. The antenna assembly includes an antenna and a support for supporting the antenna at an elevated position above the surface when mounted on the support structure. The support is adapted to support the antenna at a sufficient height above the surface to provide a direct path for electromagnetic radiation from at least a portion of the antenna to a position on the surface external of the peripheral edge of less than or equal to about 4.5 meters from substantially any point on the peripheral edge, or to a position on the surface at a point positioned 3 meters from the front of the support structure and 3 meters from a side of the support structure.