Abstract: The present invention is a system for encouraging workers who work in a hygienically controlled area to wash their hands before exiting an associated sanitation area. Broadly, the present invention comprises a housing located in the sanitation area for receiving at least a portion of the hands of the worker. A detector is operatively associated with the housing. The detector detects whether or not the hands of the worker have recently been washed in response to the insertion of the hands of the worker into the housing. A communication media is also operatively associated with the detector for outputting one of a sanitary signaling media in response to the detection that the hands of the worker have been washed and an unsanitary signaling media in response to the detection that the hands of the worker have not been washed.

Abstract: A surge suppressor for a radio frequency (RF) transmission line includes an a printed circuit board having a conductor for connection in series with a RF transmission line. The conductor has a capacitance for passing RF signals and blocking transients. To the printed circuit board are mounted a choke and a resistor, each of which is connected in series with the transmission line and in parallel to each other and to the capacitance of the conductor. The choke passes steady, direct current signals for powering equipment located on an antenna. The surge suppressor further includes first and second discharge stages connected to the conductor on opposite sides of the impedance. Each stage includes a discharge device connected to the conductor through a radio frequency choke or resonant circuit. The choke or resonant circuit blocks leakage of radio frequencies into the discharge devices. A gas discharge tube is used for the first stage, which is for connection to an antenna side of the surge suppressor.

Abstract: A restraining device for a wheelchair and method of making the restraining device. A pummel, or wedge-like element, is rotatably mounted to an elongate axis member. The elongate axis member has engaging elements at each end for engaging the frame or legs of a chair or wheelchair. The elongate axis member is longitudinally adjustable and the engaging elements are rotatably adjustable. The rotatable pummel may be releasably secured to the elongate axis member in a restraining position located proximate an upper, frontal portion of the seat of the chair upon which the restraining device is utilized. In this way, the restraining device is positioned between the legs and at the crotch of an individual seated in the chair. The pummel may be released and rotated about the elongate axis member to a non-restraining position which does not inhibit movement to or from the seat of the chair.

Abstract: Blends of low molecular weight crystalline polyethylene and crystalline EPDM polymers exhibit good processing and on curing show unexpected high flexural modulus. The addition of reinforcing agents will raise the modulus and other physical properties but the processability can remain satisfactory.

Abstract: An expansion joint seal assembly for sealing the gap between adjacent sections of a deck structure, such as a highway bridge or parking deck. The assembly includes an elongated body of elastomeric material that has two elongated compression pads extending along each side, and a flexible sealing section joining the two pads together. The compression pads are secured to the roadbed sections on opposite sides of the gap by means of metal cover plates that extend over ribs on the top of each compression pad, and fasteners such as anchor bolts that are secured to the deck sections at points in between the ribs of the compression pads. The anchor bolts extend up through the cover plates, and the heads of the anchor bolts are tightened down against the cover plates to press them against the compression pads and secure the compression pads in firm sealing engagement with the deck sections.

Abstract: An improved elastomeric bearing structure adapted for use to support members such as beams or decks upon piers, foundations, sills, etc., to accommodate static and dynamic loading, thermal movement, non-parallel surfaces or rotation caused by beam deflection and the like. Bearing structure includes a monolithic elastomeric member which defines two substantially parallel side surfaces bounded at their peripheries by a curvilinear edge surface; the elastomeric member is confined at its edge surface by a plurality of elongated inextensible tension members disposed in both vertically spaced apart relation and horizontally offset or staggered relation and of selected accumulative height to allow selected adjacent areas of the edge surface to remain unconfined. Such structure permits a substantial increase in horizontal shear deflection for a bearing of specified thickness while also permitting superior accommodation to rotation caused by beam deflection and limiting deflection caused by vertical loading.