Abstract: The present invention is directed to two forms of safety tips for friction lock, expandable batons; namely the Safety Tip™ and the Power Safety Tip™. Both safety tips of invention have a threaded end that is used to connect the tip to the small end of the baton. A step section with the same diameter as the small end diameter is advantageously used in the basic tip design to allow the shaft to be seated far enough into the handle to have full retention spring contact. The steel flange in the basic tip design also protects the softer peripheral tip cover material from being sheared off by the middle baton section when the baton is closed with a hard material in place on the steel section. In the power safety tip, the step section is the same diameter as the middle shaft of the baton, and this allows full contact with the retention spring. In both of the tip designs, the very end of the tip is rounded steel, the sides of which blend into the peripheral soft rubber-like material.

Abstract: A dual polarized horn antenna that increases the efficiency of a square or rectangular aperture which may be used in situations where a high efficiency aperture is needed in a constrained space. The antenna has a body that is tapered from a first end to a second end, wherein the first end is smaller in cross section than the second end. A flange is formed around the periphery of the body adjacent to the first end. An opening is formed in the first end of the body. A tuning iris is preferably disposed in the opening that provides for impedance matching. An insert is disposed in the central tapered opening 16 adjacent to the second end that has a central cross-shaped tapered member. The central cross-shaped tapered member extends into the central tapered opening and forms a plurality waveguide passages that form a corresponding plurality of quadrants. A plurality of cross-shaped members are respectively disposed in the quadrants and extend a short distance into the central tapered opening.

Abstract: A PostScript-compatible printer accepts PostScript language commands that indicate both device-dependent and device-independent color specifications. Such a printer in accordance with the invention has a PostScript interpreter that implements Level 1 and Level 2 color rendering pipelines. In the Level 1 color rendering pipeline, the interpreter converts device-dependent color specifications to internal color specifications using a calibrated n-dimensional operation. In the Level 2 color rendering pipeline, the interpreter converts device-independent color specifications to device-dependent color specifications using a standard PostScript color rendering dictionary, and then passes such device-dependent color specifications into the Level 1 pipeline for further processing.

Abstract: A computer printer having a frame contained within a housing, a media transport and printing mechanism attached to the frame within the housing is provided with at least one debris shield positioned above the printing mechanism to protect it from falling debris. The at least one debris shield may be positioned below an air flow path generated by printer ventilation, and the printer may employ a transfer surface on which an image is generated prior to transfer to a media sheet, and above which the debris shield is positioned.

Abstract: A computer printer having a frame contained within a housing, a media transport and printing mechanism attached to the frame within the housing is provided with at least one debris shield positioned above the printing mechanism to protect it from falling debris. The at least one debris shield may be positioned below an air flow path generated by printer ventilation, and the printer may employ a transfer surface on which an image is generated prior to transfer to a media sheet, and above which the debris shield is positioned. Stripper fingers strip the media sheet from the transfer surface and webs between the stripper fingers form an air flow barrier to prevent debris transmission through gaps between the fingers.

Abstract: A computer chassis has a cotton side wall upon which a two-section support plate structure is mounted. Each of the two support plate sections has, along a side edge periphery thereof, an upturned TEM shielding lip portion. The plate sections are supportingly securable to the underside of a printed circuit board, such as the computer motherboard, and are slidably adjustable relative to the underlying bottom chassis side wall to selectively adjust the overall size of the support plate structure so that different sizes of printed circuit boards may be alternatively secured thereto while maintaining proper spacing between the TEM shielding lip portions and adjacent side edge portions of the supported circuit board.

Abstract: A method and an apparatus (10) for cleaning an ink jet print head (12) draws contaminates from orifices (20) in the print head onto an orifice plate (14) and then wipes the orifice plate. The maintenance apparatus includes a purge cap (24) that has a recessed region (40) with an open end (36). The top side margins (42) of the open end define a periphery (44) around which a seal (60) is positioned. A positioning system (30) urges the orifice plate against the seal. A heating system (128) and a vacuum system (74) cooperate to create a differential pressure across the orifices to draw contaminates carried by liquid ink out of them and onto the orifice plate. A resilient wiper assembly (26) including a spring-mounted wiper blade (78) is positioned in and nominally extends outwardly of the recessed region of the purge cap. The positioning system moves the purge cap downwardly against the orifice plate so that the wiper blade engages and wipes the contamination from the orifice plate.

Abstract: Disclosed is a spiral spring hair barrette assembly, useful for holding ponytails and other decorative hair configurations. The barrette consists of the combination of a comb and a flat spiral spring to which the comb is attached. The spiral spring has an inside and outside surface such that when the barrette spring is coiled, the inside surface coils around the ponytail being held. Projecting from the inside surface are combed teeth which also fix the barrette in place relative to the hair. The barrette is decoratively covered with fabric of various designs and materials.