Abstract: A suspended ceiling system for a clean room employing short cross runners connected to longer main runners. The connections serve to coax the cross runners against the main runners to keep the system intact and air tight. The grid of cross and main runners creates rectangular areas between them into which ledges extend from both runners. For a dry seal, a sealing gasket adheres to the ledges' upper surface. Ceiling components such as lights, filters, and tiles sit upon the gasket to provide the seal. For a wet seal, a trough sits upon the ledge and circumscribes each rectangular area. The trough contains a liquid material into which a knife edge depending from the ceiling fixtures sits. A continuous threaded slot runs along the center of the members' bottoms. This allows the attachment of accessories such as removable walls. The runners have a generally U-shaped cross section that gives it sufficient strength to bear the live weight of a person.

Abstract: An analgesic composition comprising an effective amount of an analgesic, anti-inflammatory agent selected from the group consisting of D-phenylalanine, DL-phenylalanine, D-leucine, DL-leucine and hydrocinnamic acid and a synergistically effective amount of acetaminophen is provided by the present invention.

Abstract: An elongated interlining material for facings, for example waistbands, having slits on at least one and possibly both of its elongated edges. The slits permit the sewing of the facing to a curved edge of a garment in the normal fashion. In particular, the material will follow curves in the garment without utilizing any special guides, sewing techniques, or equipment. The facing incorporates the interlining, at least partially enclosed in a stretchable, elongated fabric, or outerlining. The facing, in turn, is sewn to the garment's edge, with the exposed surface of the interlining, if any, adjacent to the garment. The slits, directed away from the edge of the garment, permit the interlining to adapt to a concave curve by opening and allowing the portions of material on either side of the slit to slightly separate from each other. Around a convex curve, portions of interlining material adjacent to a slit may overlap.

Abstract: A device for removing dust and other fine particulate matter from the exterior surface of a bottle moving along a conveyor line. A jet of ionized air neutralizes any static charge adhering the particulate matter to the bottle and also commences the dislodgement of the former from the latter. Moving brushes contacting the exterior surface of the bottle further dislodges the particulate matter. Lastly, a vacuum on the other side of the brushes from the bottle removes the air and entrained particulate matter detached from the bottles. A star wheel having indentations in it moves the bottles along at a predetermined pace. Alternately, one or more rotating longitudinal screws can control the bottles motion through the system. A belt in contact with the bottles and moving relative to the conveyor effects their rotation regardless of their exterior configuration. This assures that the brushes contact all portions of their exterior surface.

Abstract: An electrical safety disconnect device inserted in overhead power wires to prevent live broken wires from contacting the ground or persons in their vicinity. The device takes the form of a male-female plug combination that automatically separates when the wire experiences a predetermined force generally less than that required to break the wire itself. A band encircles both the male and female components to hold them together and maintain the electrical connection. This band breaks when a predetermined stress pulls on the wires to allow the male and female portions to separate. The device sits on the wire near to the pole closer to the source of electricity. Upon separating, as in a storm for example, the "live" end of the wire hangs above the ground where it cannot contact people or other objects. Placing the female component on this portion of the wire provides additional protection to the environs.

Abstract: A suspended ceiling system having tiles and fixtures with interspersed hooks resting on runners. The hooks from adjacent ceiling components rest on the top of the same runners, but not upon each other. Each tile, consequently, may undergo removal without interfering or disturbing any of its neighbors. The tiles may have kerfing and backcutting with a metal bracket, or spline, inserted in the kerfing. The hooks extend from the metal bracket upwards and over the top of the suspended runners. Generally, the location of the hooks and spaces form mirror images of each other through a plane passing through the middle of the tile. When used on the opposite side for a neighboring tile, the hooks from either tile land in the space between the hooks on the other tile. Although resting on top of the same runner, they do not lie on top of each other, permitting the removal of one tile without disturbing any others.

Abstract: A gamma counter linearly moving two rows of linked trays each having a two-dimensional array of sample tubes. A noncantilevered crane plucks each of the tubes and carries them to the counting well. A coupling mechanism between trays allows the operator to add further trays while the instrument performs analyses on previously added sample tubes. A microprocessor in the instrument allows the operator to place into memory information for the assay contemporaneously with the addition of the new trays. Tabs on the tray interrupt photosensors on the instrument associated with the two channels of trays to properly stop the trays where the fingers on the crane can reach the rows of tubes. The fingers on the crane, when descending to grip a tube, do so off to the side of the tray to avoid contacting and possibly damaging the tops of the tubes. An internal standard of Iodine.sup.129 provides gamma particles and acts as a known sample.

Abstract: A tool for removing paint from sheet metal gutters having a central ogee portion connected to two straight, vertical portions. The scraper includes a flat blade having an edge whose contour matches very closely the shape of the gutter. In particular, it approximates the exterior configuration of the gutter on a transverse cross-sectional view. The contour, however, has a slightly greater height than that displayed by the gutter; this allows the horizontal extensions of the blade to pass over the upper and lower edges of the gutter to effectuate contact with the gutter's vertical face. Cleaning the upper and lower horizontal surfaces of the gutter then merely requires shifting the blade downward to clean the former and upward for the latter. An extended handle on the blade allows its use by a workman located at some distance from the gutter. To further facilitate its use at a distance from the gutter, the handle may pivot relative to the blade.

Abstract: A method of sealing a tooth's root canal using cyanoacrylate solution. A tooth undergoing endodontic treatment must have the pulp tissue removed and the canal cleansed and shaped. It then receives a coating of a cyanoacrylate solution to its walls. When hardened, this solution seals the dentinal tubules lining the walls of the root canal and lateral canals, when present, thus preventing communication from the canal to the periodontal membrane. When the apical foramen remains small, it also may be sealed to prevent the passage of fluids and microorganisms to the adjacent area. Including a component which renders the cyanoacrylate solution opaque to X-rays will permit examination throughout the endodontic procedure. The sealing solution may include methyl, ethyl, isopropyl, isopropyl alpha, or normal-butyl cyanoacrylate of medical grade purity.

Abstract: A method of incinerating in a main combustion chamber leading directly to two consecutive reburn stages. The main combustion chamber accepts bulk refuse onto a hearth floor. In the first reburn tunnel, a burner maintains the temperature of the gases above a predetermined set point. Above that set point, the burner assumes a low setting. Below it, a high setting increases the heat produced. Alternatively, the gas may go to its high setting below a first set point; to its low setting above a second set point; and proportionate at temperatures between them. This chamber also receives outside air to assist in the actual combustion process. From the first reburn chamber, the gases go to a second reburn chamber to complete the combustion. There, they receive additional oxygen for this purpose. At temperatures above a set point determined near the third chamber, additional air enters to prevent excessive temperatures. Fume burning of hydrocarbon containing gases may also take place in the double reburn tunnel.

Abstract: A variable-speed constant-frequency alternator compensating for changes in speed of the prime mover by electromagnetically rotating the rotor's magnetic poles around the rotor. If the prime mover has a rotational speed above or below that required to produce the desired output frequency, the magnetic poles rotate about the rotor in a forward or reverse direction, respectively. To connect the alternator to an external a.c. source, the alternator's controls match its output to the precise amplitude frequency, and phase of the external source. The rotor, for each magnetic pole pair, includes three windings. Three-phase power in these windings, produces the magnetic pole pair and rotates it relative to the rotor. Each winding couples to a flopper circuit having k sets of resistances. The resistances, taken in turn, have an inverse proportionality to the magnitude of the desired sine wave for the three-phase current in the rotor's windings.

Abstract: A calculator of flat design with a surface chart showing marginal scales and diagonal inner ones. The top of the calculator serves as a cover attached marginally to a case underneath. Also, the top has a diagonal slot, and is surmounted by a flat pointer which has a similar slot, and can be slid and rotated to relate to numerical values in the scales. An axial post is installed to pass through and be movable to any desired point in the slots, with means disengaging the post by finger pressure for movement away from said point.

Abstract: A pulsating hearth for an incinerator wherein the hearth is suspended on a fixed frame for movement in a limited short arc to urge random size particles burning in a pile on the hearth in a predetermined path intermittently across the surface of the heart. Movement is imparted to the hearth in periodic pulses preferably by inflating sets of air bags mounted on the frame, which stroke the hearth to move it a short distance from an initial position and jar it against the frame, thus impelling the burning particles a short distance by inertia and concurrently stoking the burning pile upon each stroke, and then returning the hearth to its initial position. The hearth may also have a plurality of nozzles connected to a source of air for delivering gently flowing air to the burning pile on the hearth.