US Government As Represented by the Secretary of the Army

Other

Youn M Lee

Amir Ibrahim Zaghloul

Bruce T Benwell

John Latess

An ultra-wideband antenna assembly comprising:

Ultra-wide-band (UWB) antenna assembly with at least one director and electromagnetic reflective subassembly and method

An earphone device independently securable to each ear, with a retainer having two ends. A speaker is coupled to one end of the retainer while a cushion disc is coupled to the other end, and is designed to fit within a recessed area of the outer ear. The earphone device is retained through resilient biasing of the retainer on the ear. The earphone device also includes structure for exerting force thereon in order to urge the first and second ends of the retainer away from each other, thereby providing sufficient spacing to allow removal thereof. The earphone device may have a detachable earmuff designed to protect the user's ear during cold weather conditions. Hook and loop type fasteners are on the retainer and the earmuff in order to provide easy attachment and removal of the earmuff. The invention may also be configured as an earmuff which is capable of attachment to an individual ear.

Earphone device

Flaws in a seam of a shielded enclosure are detected by forcing a current to flow over the shielded enclosure and the seam. A small portable, hand held, compact device is placed over the seam. The device has a high impedance path which forces current to flow over the shielded enclosure and the seam. Two electrodes are resiliently pressed towards the shielded enclosure. The current flowing across the seam produces a voltage which the first and second electrodes and a detector use to detect flaws in the seam.

Method and apparatus for detecting flaws of a seam in a shielded

A radio frequency gasket assembly having a flexible hollow tube enveloped a conductive layer, and filled with an incompressible fluid. In one embodiment thereof, the undeformed gasket is filled with a sufficient volume of incompressible fluid such that when the gasket is compressed proper contact pressure is achieved between adjacent conductive surfaces of the enclosure. In another embodiment thereof, the undeformed gasket is filled completely with an incompressible fluid, such as ethylene glycol. When the gasket is compressed, a portion of the fluid is allowed to collect in a spring-loaded reservoir, preventing excessive pressure build-up and rupture. When the compressive force is removed, the collected fluid re-enters the gasket.

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Clifton, VA, United States of America

Youn M Lee