Abstract: A straight roll formed beam for a curved suspended ceiling capable of being formed into a curve at the job site. The straight beam has cutouts that leave a segment of the bulb of the beam in place to give the straight beam rigidity after it is roll formed from metal strip. In the field, the bulb segment at a cutout is cut to permit the beam to be bent into a faceted curve. The bend at the cutout is fixed by a splice plate.

Abstract: A beam for a grid in a ceiling that has drywall affixed to the grid by self-tapping screws. The beam has a hem rolled downwardly and inwardly along the edge of both flanges of the beam. The hem prevents the flange from bending upward and sliding off the screw tip. The screw tip enters one of many indentations in the flange and is captured. The captured screw tip penetrates the flange and secures the drywall to the beam. The beam does not have a face cap over the flanges.

Abstract: A beam for a suspended ceiling in a clean room has soft plastic flaps on top of the flanges. The flaps form a seal when a ceiling panel is supported on the beam. The flaps, formed continuously as the beam emerges from a roll forming operation, are integral with a plastic coating on the metal beam core.

Abstract: An endoscopic stain is provided that includes a carbon pigment and a suspending/viscosity-increasing agent in a pharmaceutically acceptable delivery vehicle, wherein the carbon pigment has a total level of polycyclic aromatic hydrocarbons (PAH) of not greater than 0.5 ppm. Methods of staining an internal site utilizing the stain of the invention and kits that include the stain of the invention are also provided.

Abstract: An end-to-end connection for main beams in a ceiling grid for a suspended ceiling. A connector is formed at the end of a beam by combining a clip, fastened to the beam, with a configuration in the end of the beam. The connections are engaged to form a connection. The connection can be disengaged and reengaged.

Abstract: A system for conditioning rotatable polishing pads used to planarize and polish surfaces of thin film integrated circuits deposited on semiconductor wafer substrates, microelectronic, and optical system. The system has a pad conditioning apparatus, process fluids, a vacuum capability to pull waste material out of the conditioning pad, self-contained flushing means, and a piezo-electric device for vibrating the pad conditioning apparatus.

Abstract: To increase the chances of breeding an elite racehorse, a genetic dominance tree (GDT) of the prospective dam, and a GDT of the prospective sire, are constructed. A GDT has indicia for determining whether the horse has any dominant and substantially constant representative physical characteristic in the form of a combined body length (CBL) in its family. The prospective sire and dam are bred where there is such a dominant and relatively constant CBL common to both horses.

Abstract: In a panel ceiling, a grid that supports panels has main beams and cross beams. In assembly, the main beams are directly attached to an overhead structure and the cross beams and panels are assembled onto the main beams. Stepped slots in the main beams enable the cross beams to be locked to the main beams to keep the cross beams and panels aligned.

Abstract: A compression relief section in a beam in a grid for a suspended ceiling that permits controlled collapse of the section during a fire, whereby the ceiling is kept relatively intact. The section has a channel formed from the web portion of the beam, and a crushed bulb with a hump, along with a flange, that fold from compression forces, while resisting such forces. There is no interference between the folding portions and the ceiling panels, or drywall, when the section collapses.

Abstract: An endoscopic tissue staining composition comprises carbon and suspending/viscosity-increasing agent in a pharmaceutically acceptable delivery vehicle. In an embodiment, the composition includes carbon black, activated carbon or unactivated carbon, suspending/viscosity-increasing agent, anti-foaming agent and surfactant. In a particular embodiment, the composition includes 0.01% to 1.0% carbon, 5.0% to 25% suspending/viscosity-increasing agent such as glycerol, 0.005% to 0.05% anti-foaming agent such as simethicone, 0.5% to 1.5% surfactant such as polyoxyethylene sorbitan esterified with fatty acid, and water. A method for staining of internal sites, particularly in the mucosal layers of the gastrointestinal tract, urinary bladder or lungs, includes injecting the composition in staining amount in proximity to the internal site. A kit includes the composition packaged with a means for endoscopic injection, preferably a syringe and sclerotherapy needle.

Abstract: A control for oil flow in a hydraulic system wherein a standard open closed type solenoid valve is modified so that the rate of flow through the valve relates to the electrical power supplied to the valve solenoid coil.

Abstract: A hook type assembly that interlocks a pair of intersecting cross-beams and a main beam in a grid for a suspended ceiling. A gapped ridge in a clip on each cross-beam engages the other gapped ridge in a vertical movement that is part of a hooking action while the assembly is formed. The assembly can be optionally made to provide for expansion during a tire.

Abstract: A beam for grid in a suspended ceiling that has an increased effective beam height over prior art beams. The beam has a peak at the top, which conforms to the shape of a standard light fixture box frame supported by the beam in the ceiling. The beam does not interfere with the proper support of the fixture frame on the beam flanges.

Abstract: A drive control system for an hydraulic elevator that reduces the time delay between the starting of an hydraulic pump in the system, and the first upward movement of the elevator.

Abstract: A test fixture for printed circuit boards wherein the circuit board being tested is clamped to a vacuum actuated diaphragm plate by the same vacuum that actuates the diaphragm plate. The vacuum is automatically applied to both the diaphragm plate and the clamp means when the cover on the test fixture is closed. A bridge extends over, and is in clamping contact, with the circuit board. The bridge is supported from platens in vacuum chambers on the upper side of the diaphragm plate.

Abstract: A method, composition and kit for effecting hemostasis of a bleeding point and/or dissociating an adherent blood clot at a lesion site on an internal organ, include a composition comprising hydrogen peroxide and surfactant. The composition is applied to the site thereby effecting hemostasis and clot dissociation and clearing the field for endoscopy.

Abstract: An automatic system for arranging stacks of tortillas, first into rows, and then into a single file. The stacks of tortillas emerge at random from a stacker in a baking line or lines and are formed successively into a row, and then into a file of uniformly spaced stacks in a direction normal to the baking line or lines for travel into a packaging machine.

Abstract: A grid framework for a suspended ceiling wherein reinforced cross members are allowed to expand; without collapsing or buckling, during a fire. Clips at the end of the members create barriers that are successfully overcome, in stages, to relieve any excess longitudinal compressive forces capable of being built up by the reinforced members.

Abstract: A hydraulic elevator up direction control system is provided that has a circulating valve connected between the supply and the return of a source that normally supplies pressure to the cylinder of an elevator. The circulating valve is controlled by a computer regulated stepless variable solenoid valve that influences the pilot fluid pressure in the operating chamber of the circulation valve to control the size of the opening of the circulating valve and thereby the volume of fluid passing through the circulating valve. This affects inversely the volume of fluid passing through a fluid flow measuring valve, to the cylinder, to provide selectably variable up speeds of travel facilitating a fast, smooth, accurate ride of the elevator car as it approaches a stopping point relative to an upper floor of a building. Such operation is substantially independent of the system pressure and fluid viscosity. A selectably variable speed down direction control system operates on largely the same principle.