Abstract: The invention includes a fire pit having a domed firescreen fixed atop a firebox bowl fixed atop a support frame. One specific version of the invention includes a domed firescreen having an essentially triangular doming door panel that pivots at its apex while its bottom edge slides along a sliderail.

Abstract: An apparatus for detection of any intruder passing through an electronic wall is disclosed. The electronic wall is formed by a millimeter-wave radar positioned at one end of the wall and a plurality of combinations of plane reflectors and retroreflectors placed along the floor of the wall as well as on structures at both ends. The wall is formed of a plurality of electromagnetic beams with each beam having two segments, one between the radar antenna and a plane reflector and the second segment between the plane reflector and a retroreflector. A sufficient number of beams inhabit the wall volume to make traversing the wall by an intruder without detection essentially impossible, even though the intruder should attempt such detection avoiding methods as crawling under or jumping over the assumed locations of the beams. The primary means of determining that an intruder is traversing the wall is the detection of one or more electromagnetic beams being partially or completely blocked.

Abstract: A portable animal fluid dispenser (10) including a reservoir (12) and a container (14) detachably mounted to a side wall (22A) of the reservoir (12). The container (14) has an outlet in fluid communication with a passage (24) in the side wall (22A) and a closure (34) removably coupled to the passage (24). A carrier (16) is provided to attach the carrier (16) to an article worn by a person, for example a belt.

Abstract: A wave-scanning antenna is disclosed that does not require a rotary joint. The antenna produces a collimated beam that can be scanned through 360 degrees. The beam is directed perpendicular to the antenna's axis of rotation to form a disc-like surveillance volume, or at an angle above or below the perpendicular to form a cone-shaped surveillance volume. The radar's structure contains a transmitter and receiver coupled to a horn protruding through open centers of the support bearing and driven gear into the antenna housing. Energy emitted by the horn proceeds upward until deflected through an angle of 90 degrees by an angled reflector located on the axis of rotation. The energy is collected by a dielectric lens and focused into a collimated beam. Reflected energy is collected by the lens and directed by the reflector to the horn, where it is fed to a waveguide coupled to the receiver.