Abstract: An in situ system for thermally cleansing hazardous and toxic waste disposal sites is disclosed. The system includes a perimeter wall extending into the site which is sealed to a roof structure surrounding the site to encapsulate the site. A plurality of tubes are sunk into the encapsulated site in a geometric pattern and are directly heated to indirectly heat the site. In time, the temperature of the entire site is raised to a level where the waste is volatilized and the volatiles are collected in the roof and subsequently incinerated.

Abstract: Method and apparatus is disclosed for thermally decomposing waste material from several batch furnaces plumbed into one afterburner. The afterburner is modified to mix and combust in a controlled manner an otherwise explosive mixture of fumes from several furnaces. The entire system is regulated only by the temperature of incinerated gases from the afterburner. The furnaces are operated in a sequenced, overlapping staged manner to produce a generally constant fume loading permitting significant cost savings in equipment and operation.

Abstract: A stretchable thin plastic film and a double faces adhesive tape are mountable on exterior surfaces surrounding a building window or door to provide an external weather barrier. One side of the adhesive tape is adapted for mounting on a wide variety of external mounting surfaces at temperatures as low as 40.degree. F., and the plastic film is mountable on the adhesive on the other side of the tape at the same low temperature. The two adhesives have different adhesion strengths which enable the adhesive tape to be adhered to the mounting surface without separation therefrom during the stretching and adhering of the plastic film to the opposite side thereof and which adhesion strengths, with the film so stretched and adhered, provide for the film to be maintained against separation from the adhesive tape and the adhesive tape maintained against separation from the mounting surfaces under adverse weather conditions including gusting winds, rain and temperatures at least as low as 0.degree. F.

Abstract: An improved ripper using a hydraulic hammer with a rotating long service life hammer tool is provided. The tool is cylindrical with a large cylindrical upper portion and a central portion of reduced diameter. The tool is retained in the hammer by means of a pin passing through the tool cavity of the hammer housing which prevents passage of the large upper portion.

Abstract: A control circuit is provided for the output of a high frequency inverter of the type having an output transformer with a core, primary windings and a secondary winding with two sections for creating a first secondary current pulse of electrical current in one section when the primary windings magnetizes the core and a second secondary current pulse in the other of the secondary sections when the primary windings remagnetizes the core. By alternating switch means for passing current through the primaries to magnetize and remagnetize the core at a preselected rate the output current pulses are provided by the two sections of secondary windings. The control circuit of the present invention involves a modification of the output transformer secondary stage. A first auxiliary winding is connected to one of the secondary sections to create an auxiliary current pulse as the core of the transformer is magnetized.

Abstract: In a short circuiting arc welding apparatus and method wherein a continuously fed welding wire alternates between an arcing condition during which the wire is spaced from the molten pool of the workpiece and a short circuit condition during which the melted metal on the end of the welding wire is in contact with the molten metal pool and thereafter transfers to the workpiece by a necking action breaking the melted metal from the wire, there is provided an improvement including providing a first high inductance current control circuit for continuously directing a low level, arc sustaining, background current between the welding wire and the workpiece and providing a second current control circuit for controlling current flow during the arcing condition of the process.

Abstract: A method of monitoring a heating cycle of an induction heating system wherein an inductor encircles a metal workpiece and an alternating current is applied through the inductor from a power supply during the heating cycle. This method comprising the steps of generating an analog signal representative of the voltage across the inductor, as the voltage varies during the heating cycle by changes in the electromagnetic characteristics of the workpiece as the workpiece is being heated; digitizing the voltage representative analog signal; creating a trace of the digitized voltage representative analog signal, with the trace being indicative of the electromagnetic characteristic of the workpiece as sensed by the inductor voltage during the heating cycle; and, comparing the created trace with a preselected pattern.

Abstract: There is provided an improvement in an inverter power supply of the type including an output transformer of the type having a high permeability magnetic core, input winding means for applying input current pulses to the core; a first output winding wound on the core; and a second output winding wound on the core. The power supply further includes first and second output terminals and output circuit means for connecting the individual output windings to the terminals in a fashion that opposite polarity output current pulses induced in the output windings by the input current pulses are applied across the terminals in a preselected first polarity.

Abstract: A method and apparatus for inductively heating in an inductor and quench hardening the finished ground cam lobes of steel camshafts to a uniform shallow pattern depth with minimal lobe surface deformation. The inductor is shaped to correspond to the contour of and encircle the individual cam lobes with a minimal uniform induction coupling gap therebetween of less than 0.1 inch, and it is energized with high intensity power at a high frequency greater than 200 KHz, with sufficient power to create a power density of at least 25 KW/inch.sup.2 at the surface of the cam lobe being heated in the inductor, for only a short heat time less than 1.0 second so as to effect the rapid inductive heating of the cam lobe surface to a uniform elevated temperature and uniform shallow depth therearound without causing unacceptable reheating and resultant drawing back or tempering of the previously hardened next adjacent cam lobe.

Abstract: A method and apparatus for induction heating and quench hardening of an undulating cylindrical surface, such as that defined by gear or sprocket teeth, provide a hardness pattern uniformly distributed to a controlled depth across and between the teeth surfaces by means of axial scanning of the workpiece relative to a single induction heating coil. A distinct final heating scanning process follows a preheating scanning process whereby preheating and final heating can be conducted at differing controlled axial velocities. Axial scanning of the workpiece repeatedly past a single inductor coil enables preheating and final heating of workpieces which cannot be axially shifted directly between separate inductor coils, such as internal planetary ring gears having a closed end or external gears having a flange or shoulder protruding radially from the cylindrical gear teeth surface.

Abstract: An improved anode cup or connector assembly for a cathode ray tube comprises a one-piece, generally U-shaped sheet metal connector clip snugly fitted and rigidly supported and locked in place in a cavity in a skirted resilient rubber-like cap, the clip having side-by-side mounting legs protruding from an open end of the cavity into the skirt of the cap and provided with catch lugs for insertion into and locking engagement with a standard hollow anode button embedded in the tube wall to mount the anode cup in place thereon. A bared wire end of an insulation sheathed anode supply conductor extends into the cap cavity through a passageway thereinto within a laterally extending barrel portion of the cap, and it extends between the legs of and is electrically connected to the clip by bending of a pinch plate on the clip to clamp the bared wire end between the pinch plate and a grip tab on the base end of the clip.

Abstract: A wheel seal assembly is provided for a vehicle having an onboard system for controlling the pressure of air in a tire of the vehicle. The wheel seal assembly comprises a first annular seal members coaxial with the vehicle axle housing and mounted thereon for axial displacement relative thereto and toward and away from a second annular seal member coaxial with the first seal member and supported on the corresponding wheel assembly of the vehicle which is mounted on the axle housing for rotation relative thereto. The annular seal members may be mounted on the axle housing directly through or integrally with the associated rotating or non-rotating wheel bearing race. The two seal members have annular planar sealing surfaces facially engaging one another and flow passageways therethrough to provide for the flow of air across the seal members during inflation and deflation of the corresponding vehicle tire.

Abstract: A carton is disclosed for containing and displaying cylindrical objects such as drinking glasses or canned goods, and a single foldable paperboard blank form is disclosed for making the carton. The carton is in the form of an open ended sleeve having a divider panel providing adjacent sections for receiving the cylindrical objects, and folding tab members interengaged with the divider panel to retain the objects within the open ends while providing maximum visible exposure of the objects at the carton sides and ends. Tabs in the top and bottom panels of the carton provide finger holes for carrying the carton and extend into the carton transverse to the divider panel and between adjacent objects in the direction between the open ends of the sleeve.

Abstract: There is provided an improved disposable receptacle with a self-supporting configuration for combined baking and cooking of a generally flat food article, such as pizza having a given thickness, in a microwave oven, which receptacle is constructed from a sheet of microwave susceptor stock surrounding the food article and comprising an outwardly exposed, dielectric support layer, such as paperboard, and an inwardly facing heating layer of microwave interactive material allowing passage of microwave energy as it is heated thereby and further including a lower flat portion for supporting the food article during microwave heating.

Abstract: An improvement in a capacitance type electrostatic transducer for transmitting and/or receiving pressure energy, wherein the transducer includes a relatively inflexible backplate with at least one major surface thereof formed of electrically conductive material, a relatively flexible membrane including a layer of electrically conductive material stretched across and coextensive with the one major surface of the backplate, electrically insulating means for maintaining a capacitor forming spacing between the major surface and the stretched membrane and wherein the major surface has protrusions extending through the spacing for supporting the membrane. The improvement is providing the protrusions as a multitude of discrete pedestals distributed over the major surface and formed by etching away the major surface except in photographically selected areas defining the pedestals.

Abstract: A small, lightweight ornamental tape dispenser is adapted for hand held, desk top, or wall mounted use, and accomodates both right and left handed withdrawal of tape while remaining in a wall mounted position. A wall mounting means, a tape roll holding means, and a free standing base means are disposed at the rear side of an ornamental planar front wall member.

Abstract: A fly fishing reel having an integral line retainer is described. A stud and an elastomeric member are mounted on the reel providing a convenient line retainer which will not injure line.

Abstract: A wheel comprises a felloe or outer rim, a dish for attachment to a vehicle hub and several improved support blocks connecting the dish to the rim. The improved support blocks have a generally U-shaped profile which has one configuration in the central portion of the support block and a second configuration at its ends. The leg portions of the central profile are straight and joined to the base of the U by small radius curves. The leg and base portions of the end profile are gently curved and unfavorable stresses avoided.