Abstract: A conduit level for use in bending electrical conduit includes a generally F-shape rigid frame having a base member and a pair of legs and a clamping screw protruding through one of the legs for connecting the frame to an open end of a conduit. A bubble level is housed within a bottom end portion of the base member so that, when the apparatus is connected to the conduit, the bubble level is laterally spaced apart from the open end of the conduit to bring it into view of an operator from an operator's position alongside the conduit for leveling the conduit. A housing is integrally formed in the bottom end portion to substantially surround the bubble level to protect it from impact. The housing includes windows on four sides to allow viewing the bubble level from the operator's position after a bend is formed in the conduit.

Abstract: A method and an apparatus for thermal printing capable of thermally printing diverse patterns on large printing areas at a high accuracy. In the apparatus, the carbon ribbon is moved along a first track and then along a second track which are spatially separated from the first track; a printing object is carried along the second track below the carbon ribbon; the desired printing patterns are imprinted on the carbon ribbon moving along the first track by a printing head placed on the first track; and the carbon ribbon is pressed onto the printing object by thermal transfer roller placed on the second track so as to thermally transfer the desired printing patterns on the carbon ribbon to the printing object.

Abstract: A system for screening particulate material includes replaceable screening modules mounted to a rigid frame by lock pins. The lock pins are fixed into mounting holes in the frame and interlockingly and removably engage recesses in the sidewalls of the screening modules so that the lock pins remain fixed to the frame while allowing the modules to be removed and replaced as required due to wear or to change sieve size. A split lock pin is provided for removably connecting the module to the frame along an outboard edge of the frame while maximizing screening area. An improved elongate frame member is arranged to avoid abrasive wear of the frame.

Abstract: The invention is directed to a device for axially and externally mounting an expandable sleeve onto, and dismounting the sleeve from, a cylinder. The subject device comprises an external fluid-transmission means for expanding the diameter of the expandable sleeve by introducing a fluid capable of expanding the sleeve between the inner surface of the sleeve and the outer surface of the cylinder. The requisite sleeve expansion is accomplished without transmitting fluid from within the cylinder during the mounting and dismounting operations. The sleeve is contractable by the removal of the fluid.

Abstract: A dopant-opaque layer of polysilicon is deposited on gate oxide on the upper substrate surface to serve as a pattern definer during fabrication of the device. It provides control over successive P and N doping steps used to create the necessary operative junctions within a silicon substrate and the conductive structures formed atop the substrate. A trench is formed in the upper silicon surface and a source conductive layer is deposited to electrically contact the source region as a gate conductive layer is deposited atop the gate oxide layer. The trench sidewall is profile tailored using a novel O.sub.2 -SF.sub.6 plasma etch technique. An oxide sidewall spacer is formed on the sides of the pattern definer and gate oxide structures, before depositing the conductive material. A planarizing layer is applied and used as a mask for selectively removing any conductive material deposited atop the oxide spacer.

Abstract: Transmission gate multiplexer circuits (FIG. 5) are used to form Booth select logic (FIG. 12), Booth recode multiplexer logic (FIG. 11), constant K-bit logic (FIG. 13) and reduced sign bit logic (FIG. 14). In these circuits, input variables are selectively applied both to multiplexer input terminals and to multiplexer select terminals, to achieve the desired logic functions with minimum delay.

Abstract: A low current substrate bias generator for regulating the voltage of a substrate layer of an integrated circuit includes a sense circuit having an input for sensing the voltage of the substrate and an output that is coupled to an inverter for providing a control signal. The control signal controls a charge pump that is coupled to the substrate layer or well that is desired to be regulated. The sense circuit includes a load element and a level shifting circuit having a predetermined standing current requirement that flows directly into the substrate. The current requirement of the bias generator is reduced by increasing the value of the load element and a reasonable delay time is maintained by coupling a capacitor across the level shifting circuit. Since the voltage across the capacitor cannot be changed instantaneously, changes in the substrate voltage are directly coupled from the input to the output of the sense circuit, triggering the charge pump.

Abstract: A method for producing a three-diemnsional display device comprising the steps of photographing multiple views of a three dimension object, projecting the multiple perspective photographic views of the original object onto a topographically correct surface, and vacuum forming an image to full relief of the original object with all visual information in its correct location and without distortion.

Abstract: A fiber optic cable pulling method uses a series of large-diameter capstan winches placed at intermediate access points along the conduit through which multiple runs of fiber optic cable is to be pulled. Each capstan winch simultaneously pulls a portion of each of the cables through a segment of the conduit at a substantially uniform velocity and tension. The capstan wheel of each winch is sized frictionally to engage the cables without exceeding its minimum bending radius. The cables simultaneously wind around each capstan wheel. The winches are independently controlled to maintain pulling tension on each portion of the cable below a predetermined tension which, if exceeded, could damage the fiber optics in the cable. The capstan winches are spaced sufficiently close together to pull a portion of the cables in parallel through each conduit segment of a tension ordinarily less than the maximum tension porvided by the capstant winches.

Abstract: The shower pipe assembly of the present invention can be used in a washing device such as a rotary drum filter and comprises an elongate pipe member including means defining a hollow interior flow chamber, preferably located adjacent a washer device, for conveying a wash liquid, preferably a liquid for washing a pulp mat. The shower pipe includes at least one row of spray holes extending through the pipe from the interior flow chamber to the exterior thereof. It also comprises a spray diffusion flange assembly extending from the pipe member adjacent each of the spray holes and further includes apparatus for impermanently attaching the diffusion flange to, and detaching the diffusion flange from, the pipe member, preferably to the exterior of the pipe member. These attachment and detachment steps are carried out without the use of auxiliary internal connecting apparatus which are not part of the diffusion flange structure.

Abstract: A tip ski sleeve slips over a tip portion of a ski and a heel ski sleeve slips over a heel portion of the ski. Each of the ski sleeves includes a hollow elongate sleeve body having an open end for receiving the respective end portion of the ski and a closed end for maintaining the sleeve positioned on the respective end of the ski. Each ski sleeve further includes an elongate strap, stretchable to extend around a second ski positioned adjacent the ski and attachable at the free end to the sleeve for removably holding the skis together.

Abstract: A dopant-opaque layer of polysilicon is deposited on gate oxide on the upper substrate surface to serve as a pattern definer during fabrication of the device. It provides control over successive P and N doping steps used to create the necessary operative junctions within a silicon substrate and the conductive structures formed atop the substrate. A trench is formed in the upper silicon surface and a source conductive layer is deposited to electrically contact the source region as a gate conductive layer is deposited atop the gate oxide layer. The trench sidewall is profile tailored using a novel O.sub.2 -SF.sub.6 plasma etch technique. An oxide sidewall spacer is formed on the sides of the pattern definer and gate oxide structure, before depositing the conductive material. A planarizing layer is applied and used as a mask for selectively removing any conductive material deposited atop the oxide spacer.

Abstract: A method and apparatus for controlling urinary incontinence in a patient includes positioning a reservoir containing fluid subcutaneously over the patient's anterior pubis; an inflatable compression balloon between the patient's posterior pubic symphysis and urethra; and a conduit extending over the pubis for fluid communication between said reservoir and said compression balloon. The compression balloon is inflated in response to fluid flow from said reservoir, when manually compresed by the patient. A manually releasable, one-way valve positioned in the conduit between said reservoir and said compression device retains fluid in the compression balloon under pressure and is externally actuable by the patient for equilibrating pressure in the reservoir and compression balloons to permit voiding. The bladder of the patient is elevated and connected anteriorly to the patient's abdominal wall by a felt matrix or mesh patch affixed to the bladder to effectively lengthen and stabilize the urethra.

Abstract: The disclosed valve may be configured for use as a pressure relief valve, pressure regulator valve or pressure reducing valve. A pair of opposed valve members defines a radial flow path therebetween which extends from the outer radial peripheries of each valve member to an axial bore formed in one of the valve members. The other valve member comprises a substantially pressure balanced piston, the axial movements of which control flow through the valve. A pilot valve for relieving pressure above the piston has its inlet positioned within a cavity formed on the upper surface of the piston.

Abstract: A line voltage monitor and controller disconnects AC-powered user equipment from an AC power line whenever the AC power line voltage is outside a predetermined operating voltage window. The equipment is automatically reconnected to the power line only after the power line voltage remains continuously within the operating voltage window for a predetermined delay period. The controller protects the user equipment from both over-voltage and under-voltage (brownout) conditions.

Abstract: A method and apparatus for dissipating fog. A low enclosure includes a plurality of slits in the top thereof. A space heater is in communication with the enclosure and provides a flow of heated air thereinto. Heat is transferred to the air above the enclosure by convection through the slits and by radiation from the heated top. A plurality of such enclosures are positioned adjacent a runway to evaporate fog in the air surrounding the runway.

Abstract: This disclosure is directed to a multi-adjustable, multi-functional, space saving workplace system. The subject workplace system comprises a substantially horizontal table member including a first slot located within the top horizontal surface at the rearward portion of the table member. The plan view of the table member is substantially V-shaped. The portion of the table member forward of the slot forms a work surface for conducting workplace operations. The table member is supported in a substantially horizontal position with respect to the vertical axis of the workplace system.A substantially horizontally-disposed covering member is located above the first slot and is disposed substantially parallel to the table member. The covering member provides acoustical integrity for workers located within the confines of the workplace system. It includes second slot located in the bottom horizontal surface at the rearward portion of the covering member.