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Now showing items 129 - 144 of 1363

  • Recreational survival light/stove water heater unit

    An apparatus for outdoor recreation and survival which provides five simultaneous functions: portability, light, heat, a friction ignition system and a liquid heating system. It combines together elements of a burner fueled by a commercially available propane tank, mounted in a housing where the burner can provide both light and heat simultaneously when lit. The apparatus can simultaneously be transported by use of a handle attached to the housing. Light and heat are maximized through the use of reflective surfaces inside the housing which surround the burner. The improvement comprises a friction igniter attached to the housing for the safe and efficient lighting of the burner. The igniter is attached to the housing through a door/framework containing fire resistant glass to protect the user from any flames during ignition and use thereafter. Furthermore, an improved liquid container provides an energy efficient kettle that heats liquids. It is held snugly to the heating grill with guides so that water can be boiled in the container while the stove is being carried. The guides allow the easy removal of the liquid container from the grill. The liquid container is contoured to match the shape of the grill to maximize heat transfer from the grill to the liquid container.
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  • Method of mounting a tape automated bonded semiconductor in a housing using a compressor

    This invention resides in a curing process for adhesive on a housing member of a tape automated bonding section (TAB section). A force is applied to the housing member and then the entire TAB section is heated to a sufficient temperature and for a sufficient duration to cure the adhesive. The applied force, coupled with the heat squeezes a portion of the adhesive out from between the TAB section and the housing member and onto an inner portion of the outer leads before the adhesive cures. This embeds the inner portion of the outer leads with adhesive so that they are retained in alignment with and electrically isolated from each other.;The manner in which the force is applied to the housing member during the
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  • Tropical Seabird Biologyby Ralph W. Schreiber

    Review by: Craig S. Harrison  

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  • Glyphosate compositions comprising hydrocarbyl dimethyl amine oxide and quaternary ammonium halide

    Glyphosate formulations which are effective even when employed at dosages below the dosage currently recommended for post-emergent herbicidal or plant growth regulant use are described. They are formulated as water solutions or powders or granules of (a) one or more agriculturally acceptable amine, alkali metal, alkylsulfonium, alkylphosphonium, sulfonylamine, and/or aminoguanidine salts of glyphosate; (b) at least one water-soluble long chain aliphatic hydrocarbyl dimethyl amine oxide in which the hydrocarbyl group is a linear or substantially linear saturated or olefinically unsaturated aliphatic group having in the range of about 8 to about 22 carbon atoms; and (c) at least one water-soluble quaternary ammonium halide having in the range of about 8 to about 40 carbon atoms in the molecule.
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  • To Feed This World: The Challenge and the Strategyby Sterling Wortman; Ralph W. Cummings,

    Review by: Erica F. Wheeler  

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  • Device for forcing a reflective highway post into the ground

    A mobile device for forcing a highway post into the ground in the vertical position, especially where the highway post is flexible and made of fiberglass, which involves a vertical column spaced from and supported by the mobile device, guide means mounted on the vertical column to hold a reflective highway post in a vertical position while the post is forced into the ground by repetitive blows from a hydraulically driven hammer and means for moving the vertical column and the guide means upwards in a vertical direction when the post has been forced a sufficient distance into the ground.
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  • Apparatus and method for disabling a smoke detector when using a smoke-emanating apparatus

    An apparatus and method for use with a smoke detector that is located in proximity with a stove or similar smoke-emanating article. The smoke detector is enabled by placing the detector near the stove (or similar article) and/or applying a source of power to the smoke detector. The smoke detector is coupled to a device that operates to alleviate the accumulation of smoke that might emanate from the stove. Such a device might take the form of a stove hood or, specifically, a fan incorporated or associated with the stove hood. The smoke detector is mechanically and/or electrically coupled to the hood so that when the hood or fan is operating, the smoke detector is disabled and no alarm is communicated. The alarm may be automatically interrupted when the hood and/or fan are mutually deployed in an active (ON) mode.
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  • Layout efficient 32-bit shifter/register with 16-bit interface

    An integrated circuit processor architecture that implements digital signal processing (DSP) functions with less hardware, improved speed and a more efficient layout. The central processing unit (CPU) resources are used in conjunction with an integrated multiply/accumulate unit to perform DSP operations. Use of the CPU's internal register for the circular buffer of the DSP multiply/accumulate function allows a minimum amount of lower speed hardware to be used for the multiply/accumulate unit and permits DSP operations to be performed in parallel. The multiply/accumulate unit takes advantage of the inherent accumulating properties of conventional multiplier designs to perform multiplication of two signed binary numbers using the modified Booth's algorithm but in both reduced cycle time and hardware requirements. This is accomplished by using the adder within the multiplier to sum the product terms. Instead of clearing the adder of the result of one multiplication before beginning another, the result is maintained and all subsequent partial products are added to it to generate a final output. The placement of the 32-bits of the multiply/accumulate unit's multiplicand register is arranged in two rows of 8 even bits and two rows of 8 odd bits to allow left shift by two with a single loop around and to provide direct interface with the 16-bit data latch register on its input and the rest of the 32-bit arithmetic logic unit (ALU) on its output.
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  • Method and apparatus for modifying spun textile yarn

    A method of modifying surface characteristics, such as hairiness, and trash content by passing a spun yarn through an air jet nozzle. Data show reduced hairiness and improved cleanliness over normally wound yarn.
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  • Settling process analysis device and method

    A system and method for monitoring the dynamics of particle motion in a liquid-solid media including the rate of settling of particles, the identification of unsettled particle clouds, and the identification and control of the bed level of settled particles in a slurry within a settler is provided. The system includes an ultrasound transducer and a receiver for detecting echoes from particles in the slurry. The echoes are processed to determine the bed level of the settled particles, the position of unsettled particle clouds, and the rate of settling of the particle clouds.
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  • Settling process analysis device and method

    A system and method for monitoring the dynamics of particle motion in a liquid-solid media including the rate of settling of particles, the identification of unsettled particle clouds, and the identification and control of the bed level of settled particles in a slurry within a settler is provided. The system includes an ultrasound transducer and a receiver for detecting echoes from particles in the slurry. The echoes are processed to determine the bed level of the settled particles, the position of unsettled particle clouds, and the rate of settling of the particle clouds.
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  • Method and apparatus for processing requests for interactive applications based on system resources

    For an interactive communication system, a method and apparatus for processing requests for interactive applications. One embodiment of the invention initially receives a request to transmit a first presentation of a particular interactive application. This embodiment then determines if transmission of the first presentation would constrain resources of the interactive communication system. If the system's resources would be constrained, then this embodiment causes a second presentation of the particular interactive application to be transmitted. This second presentation expends less resources of the system than the first presentation.
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  • Moisture sensor probe with at least two groups of resistive arrays

    A probe for sensing the moisture content in a porous medium such as soil. The probe includes an array of a multiplicity of conductors and resistors formed on a substrate, with contact pins or electrodes connected to one end of each resistor, typically extending outwardly from the substrate. The resistor array is preferably divided into at least two groups, providing a separate output for each group. An appropriate voltage source and indicator means are connected to the resistor array in a circuit to provide indication of soil moisture. The transfer characteristic of the apparatus is such that the probe has improved sensitivity in the area of primary interest, that is at, between 80 and 100% of saturation.
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  • Current controlled electronic circuit for a hot wire air flow meter

    A current controlled electronic circuit for a hot wire air flow meter having a symmetrical bridge circuit to measure the mass of the airflow. The present current bridge arrangement requires very few adjustments to select a few resistors for obtaining a required temperature differential and compensation for variations in the temperature coefficient of resistance of both the heated and cold resistors. This is accomplished by placing of a voltage divider in parallel with the sensing leg and a first amplifier responding to the voltage divider and the sensing let to control the current in the compensation leg. A second amplifier responds to the compensation leg for controlling the power to the sensing leg.
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  • Filtration aids for removal of calcium solids from aqueous phosphoric acid

    Separation of gypsum from phosphoric acid liquor produced during the production of phosphoric acid from finely ground phosphate rock. These aids are characterized as containing sulfonate and acrylamide.
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  • Settling process analysis device and method

    The invention provides a system and method for monitoring the dynamics of particle motion in a liquid-solid media including the rate of settling of particles, the identification of unsettled particle clouds, and the identification and control of the bed level of settled particles in a slurry within a settler. The system includes an ultrasound transducer and a receiver for detecting echoes from particles in the slurry. The echoes are processed to determine the bed level of the settled particles, the position of unsettled particle clouds, and the rate of settling of the particle clouds.
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