Abstract: A method for redeveloping or renovating sewer conduits and sewer ducts, with which a large amount of scrap rubber can be used. Tube of low inherent stability are produced from scrap rubber and plastic material. These tubes are introduced into old sewer pipes of the sewer ducts, the tube of low inherent stability being supported by the wall of the old sewer pipe.

Abstract: A method of remediating a site of earth and groundwater contamination includes the steps of drilling at least one injection well, and preferably a plurality of injection wells, into the groundwater in a contaminated area. At least one, and preferably a plurality of extraction wells, are drilled into the earth above the groundwater, the vadose zone, in the contaminated area. The surface of the earth above the contaminated area is sealed, such as by a layer of concrete, asphalt, or plastic sheeting. Air and nutrients are injected into the contaminated area through the injection wells. The air is injected on a substantially continuous basis while the nutrients are injected on a batch basis. Air and vapor is extracted on a substantially continuous basis from the contaminated area by the extraction wells, which may be either vertically or horizontally positioned.

Abstract: A method of construction for flattened single or dual inlet boom tube exhaust pipes from sheet metal for use on race cars, such as stock cars which race on oval tracks. The construction of the boom tube exhaust pipes comprise single or dual slightly flattened circular inlets which lead exhaust gasses into a flattened profile body constructed of formed sheet metal half shells, with the inlets at or above the lower plane of the body. One or more formed sheet metal structural ribs extend through the body and into the inlets and one or more spacer ribs support the half shells within the body.

Abstract: An acid gas burner and reactor apparatus, and method when used in the Claus process, are improved over the prior art by the provision of a substantially continuous circular slot for the flow of a reactant gas from an annular conduit into the open outflow end of a conduit that is located centrally of the annular conduit and through which flows pressure air, or air enriched with oxygen, the circular slot surrounding the open discharge end of the central conduit so as to discharge an annular curtain of the reactant gas into the flow of pressure air, or oxygen enriched air.

Abstract: A treatment product for earth surfaces, particularly earth surfaces which generate dust such as dirt roads or parking lots, includes a fatty acid containing material and water in at least a temporary semi-emulsion state when applied to the earth surface. The fatty acid containing material may be used vegetable oil, animal renderings, or a combination thereof such as Yellow Grease. An emulsifying agent can be used to help emulsify the fatty acid material in the water. The fatty acid material makes up between about 10% to about 85% of the product with the water, and emulsifying agent, if used, making up the remainder. When used, the emulsifying agent can make up to about 1% of the amount of water used. The product is applied to the earth surface to be treated and dries in several hours.

Abstract: Cannula retainers for use with oxygen delivery cannulas having a tubular nose piece for introducing oxygen into a person's nose, dependent oxygen tubes extending from opposite ends thereof for looping over the person's ears and which terminate at a connector for connection to an main oxygen delivery tube, and a slidable retaining collar for tensioning the oxygen tubes against the person's lower jaw. The cannula retainers comprise a tubular, band, or elastic body having a hook, clip, loop, or tubular member connected to each end of the body for attachment to the upper and lower portions of the oxygen tube to retain the oxygen tube in a looped configuration about the person's ear. The cannula retainers can be of a fixed length or of a variable length such as being stretchable or elastic, or of an adjustable length. Cannula with retainer assemblies include any of the cannula retainers of the invention with such cannulas.

Abstract: In order to manufacture parts with an outer profile, a workpiece (32) is pressed by a pressure piece (24) through a ring-shaped cutting tool (34). The cutting tool (34) has a plurality of disks with inner cutting edges (62) for removing material from the workpiece (32). The cutting edges are progressively longer in the advance direction, so that each cutting edge removes material chips and the last cutting edge in the advance direction corresponds to the desired outer profile of the part. In order to improve chip removal, the chip chambers (74) located between the cutting edges communicate with the outside through radial connection openings (128) which are distributed all around their circumference. To hold the workpiece (32) securely on the pressure piece (24), a pressure pad (76) extends through the cutting tool (34) and is supported on the side of the workpiece (32) opposite to the pressure piece (32), and a hydraulic piston (80) generates a compression force on the pressure pad (76).

Abstract: Mono-wheel roller skates having a single large main wheel which supports the skater and a pivotally mounted smaller brake actuation wheel which contacts the ground when the skates are tipped backward and which is operatively connected to caliper brakes which grip the main wheel to slow or stop the skater. The main wheel is treaded and spring-mounted on a cantilevered arm to absorb shocks for off-road skating. A removable rock guard works in conjunction with a built-in rail guard to deflect debris and prevent it from accumulating in front of the main wheel. An arcuate toe push-off piece or a unidirectionally rolling toe push-off wheel allows pushing off from the toe of the skate such that a skater can use an in-line skating stroke wherein the skates remain pointed in the direction of travel rather than angled outward thereto as is usually required for skating.

Abstract: The invention relates to a method for determining the relative movement between a target tracking missile and a target being located at a target distance from said missile. The missile is equipped with an image processing seeker head provided with a seeker detecting said target. The seeker head observes the target in an observation direction. A target image is generated on the seeker. The size of the target image depends on the observation direction. The target moves with a target velocity relative to the missile. The method has the method steps of: defining a seeker head-fixed coordinate system; defining a maximum absolute size of said target; measuring further relevant quantities; and running a recursive algorithm in order to obtain estimated values of a three-dimensional vector of the target velocity in the seeker head-fixed coordinate system by using as inputs the defined maximum absolute size of the target and the image dimension appearing on the seeker as well as further relevant quantities.

Abstract: An apparatus for treating items such as for freezing, drying, or baking food items, includes an inclined track or trough with a perforated bottom through which pressurized treating gas flows to raise the item and hold it suspended above the bottom of the trough to allow the item to move by gravity down the trough as the treating gas, such as a cooling or refrigerating gas when the item is being cooled or frozen or a hot gas when the item is to be cooked, flows under, around, and over the item to be treated to thereby treat such item. It is preferred that the trough be a spiral trough surrounding a chamber containing pressurized treating fluid which flows from the chamber into a plenum under the perforated trough bottom, through the perforations and around the item and then out of the trough. The items can be stopped in the trough so that they remain for a predetermined treatment time.

Abstract: A spill resistant lid includes a sealing bead in pressure contact with the inside wall of a container to be closed when the lid is in sealing position with respect to the container to substantially seal the container. The lid includes a first cylindrical wall and a second cylindrical wall spaced apart to form a receiving channel for the top of a container to be sealed. A ridge extends into the channel from the first cylindrical wall to hold the lid in place. The sealing bead extends into the channel from the second cylindrical wall. A central lid portion closes the area inside the second cylindrical wall and applies sealing pressure to the bead. In a preferred embodiment a third cylindrical wall in the central lid portion is joined to the second cylindrical wall by a web.

Abstract: A spill resistant lid to be secured over the open top of a container to resist spilling of the container contents from the open top of the container includes a central lid portion extending over the open top of the container. A raised portion, such as a drinking mouthpiece, extends above the central lid portion and a deformable section, such as a cylindrical section, extends downwardly from the raised portion toward the central lid portion. The deformable section is at least partially separable from the central lid portion so it can be deformed in an over center manner or other manner such that deformation of the deformable section toward the raised portion results in the deformable section assuming a stable open position exposing an opening or hole through the lid into the container and deformation of the deformable section from open position results in the deformable section assuming a stable closed position over the opening or hole.

Abstract: The disclosed invention includes extrusion apparatus, wherein and by which ground meat replicates selected cuts of natural, unground meat. A ground meat product substantially free of bone and heavy tissue is extruded through a die having a perforated area extending sidewise of the die and constituting at least one row of a series of elongate openings extending closely end-to-end along the perforated area in preferably multilayer rows, the openings of the outer layers of which preferably intercommunicate end-to-end, or even interconnected end-to-end so that a continuous ribbon-shaped, stranded, intermediate product is extruded and may be cut transversely to make final, stranded meat products, both intermediate and final products being preferably enclosed substantially peripherally by an envelope of side by side, substantially merged, longitudinal strands of ground meat that substantially replicates a cut of natural, unground meat.

Abstract: An inflatable rocking recreational device includes an inflatable main body having a generally arc-shaped bottom surface for resting in water or on a surface such as the ground or a floor, and on which the device can be rocked. The device can include a plurality of connected bodies such as a main body with stabilizing bodies secured thereto or two or more main bodies secured side-by-side or at angles to one another to stabilize the body. Handles are provided to allow the users to grip and hold on to the body. The device is usually mounted by a plurality of users who rock the device back and forth along the arced bottom surface.

Abstract: A combustion chamber in a reciprocating-piston internal combustion engine having at least one inlet duct and at least one outlet duct is formed by a cylinder head and piston each having respective annular squish surfaces for acceleration of fresh gases. A mixture guide element having a recess in its top adjoins the piston crown and the inlet duct to the cylinder is arranged to cause fresh gases to flow with a circulatory movement into the combustion chamber. The configuration increases power output while reducing pollution emissions.

Abstract: A pressure fluid driven piston and cylinder engine capable of providing high torque output at any engine speed for direct connection to a vehicle or machine to be driven. The engine may be used for any purpose, but is especially advantageous for powering an automotive vehicle. The engine does not require a transmission due to its ability to provide, in itself, a high torque at any engine speed and the ability to provide forward and reverse drive and neutral and park functions. The engine has at least a pair of piston and cylinder power units with pistons which move in an opposing manner to transmit power from elongate gear racks, respectively, on the piston rods to an outer pinion gear portion of respective conventional roller clutches. The roller clutches, in turn, change the reciprocating movement of the power units into unidirectional rotation of the drive shaft. Constant leverage is exerted by the pistons on the drive shaft throughout their power strokes by use of this gear and rack arrangement.

Abstract: An ash retainer and grill support for supporting a charcoal or similar grill and providing for the collection and storage of the ashes and other debris from the grill so as to aid clean up from the grill, provide increased safety by preventing easy access to hot coals, and to provide containment for the ashes so they can be easily removed from areas that restrict leaving fire remains, includes a bucket like retainer having an open top to receive and support a grill body therein. The normal grill air openings are within the opening so that any ashes or debris falling through such openings fall into and are collected by the retainer. The retainer includes a retainer vent to allow flow of air into the retainer and into the grill. The retainer has a double bottom wall and portion of side wall to insulate the outer wall from hot ashes and coals to reduce the chance of fire and a user being burned.