57results about How to "Reduces and eliminates need" patented technology

A method and product is disclosed which provides emulsion stability and filtration control to invert emulsion drilling fluids. The product comprises a blend of a carboxylic acid terminated polyamide and / or a wetting agent with a reaction product or mixture produced by the Diels-Alder reaction of dienophiles, preferably carboxylic acids, polycarboxylic acids, acid anhydrides, or combinations or mixes thereof, with a mixture of fatty acids and resin acids. The product of the invention is extremely effective, decreasing by about two-thirds the amount of emulsifier generally required to formulate an effective drilling fluid. The product of the invention also greatly reduces and in many cases eliminates the need for conventional fluid loss additives, and additionally provides electrical stability. Moreover, the product of the invention has a pour point as low as about 20 degrees Fahrenheit with minimal solvents, thereby eliminating the need to ship large amounts of inert material for use, and may be transported in a highly active state.

A panel for polypropylene injection molded siding, and for similar materials and / or uses, is mounted in lapped courses with panels attached at butt joints in a direction of elongation. Complementary tabs and slots at the panel ends can be engaged by end-to-end approach of the abutting panels. Additionally, openings for the tabs permit engagement from a position in which the panel ends are already overlapped, which reduces or eliminates the need for endwise assembly space. The slots can be discontinuous on one or both sides, openings permitting lateral insertion of the tabs at gaps, whereupon movement of the tabs along the slots engages the joint. The panels can simulate wood siding and include a step between simulated courses. A gap is provided in the edge of the panel at the step, thus forming an opening for the tab to enter and move along the slot.

A compact vacuum chamber gives electric and optical access to a microchip, which is part of the chamber. The main use of the microchip is to confine, cool and manipulate cold atoms (atom chip). The main new feature is that the microchip forms one wall of a vacuum cell. This makes the chamber compact and lightweight, provides large optical access combined with small overall size, eliminates in-vacuum cabling, and makes the back surface of the chip accessible from the outside (e.g., for cooling and / or additional field-producing elements).

A vehicle safety seat (104, 202, 302, 502, 802) includes a seat bottom (120, 210, 310, 504, 810) that is movable substantially instantly from a substantially horizontal normal orientation for normal traveling to a deployed angled orientation contemporaneously with a vehicle crash. The deployed safety seat shifts a seat occupant (102) into a protective posture to reduce accelerations, loads and moments of force on various parts of the occupant's body. In preferred embodiments, the seat bottom is deployed into its angled orientation by lowering the rear (124, 312, 507, 812) of the seat bottom, causing the seat bottom to pivot about a front pivot (174, 220, 320, 518, 820) at the front of the seat bottom. Typically, a vehicle safety seat includes a backrest (130, 240, 360, 550, 840). In some embodiments, a backrest (130, 240, 360, 550) is movable downwards and / or rearwards simultaneously with movement of the seat bottom.

A structure including at least two structural components arranged to form a channel therebetween, a post tensioning element configured to compress the at least two elements with respect to each other, and a thixotropic filler material located within the channel.

A lens driver or lens driver circuitry for an ophthalmic apparatus comprising an electronic system which actuates a variable-focus optic is disclosed herein. The lens driver is part of an electronic system incorporated into the ophthalmic apparatus. The electronic system includes one or more batteries or other power sources, power management circuitry, one or more sensors, clock generation circuitry, control algorithms and circuitry, and lens driver circuitry. The lens driver circuitry includes one or more power sources, one or more high voltage generators and one or more switching circuits.

A method of conducting multiple source, multiple signal seismic surveys in a marine environment are provided.

A method of allocation a computer to service a request for a data set in a system having a plurality of computers. The method is implemented on a neural network having only an input layer having input nodes and an output layer having output nodes, where each output node is associated with a specific computer. Connecting the input nodes to the output nodes are weights w(j,k). The method includes the steps of receiving a request for data set “I” and inputting to the input layer a vector R(I)dependent upon the number of requests for the requested data over a predetermined period of time andselecting a computer assignment associated with of one of the output nodes to service the data request, where the output node selected is associated with a specific weight selected to minimize a predetermined metric measuring the distance between the vector entry R(I) and the weights(I,k).

An intervertebral joint prosthesis having a ball component (22) for engagement with a first vertebra (26) and a trough component (24) for engagement with a second vertebra (27) adjacent to the first vertebra is disclosed. The trough component (24) includes a generally concave surface (50) having a substantially flat portion (52). When the ball component (22) and the trough component (24) are engaged to their respective vertebrae, the ball component (72) and the trough component (24) engage each other, permitting rotation and translation of the vertebrae with respect to each other. Both components include a flange (34,56) for engaging a vertebra. The invention also contemplates a method for and a tool for use in implanting a two-piece intervertebral joint prosthesis.

A method is disclosed for preparing hydrazides from hydrazine and an acyl chloride which comprises the steps of (a) preparing a stirred substantially uniform slurry comprising hydrazine and an inert solvent at low temperature; and (b) adding an acyl chloride continuously to said slurry. The method avoids or limits production of undesired bis-hydrazide by-products. The method is used to prepare 3-methyl-3-mercaptobutanoic acid hydrazide, a molecule used to link calicheamicin to a monoclonal antibody.

A differential pressure sensor positioned adjacent a first pressure chamber and a second pressure chamber separated by a nozzle. Flow in a conduit is determined by detecting the pressure on either side of a nozzle. Changes in pressure are proportional to a change in flow. An integrated differential pressure sensor having different pressure detecting portions with strain gauges thereon detects differences in deflection of each pressure sensor portion resulting from change in fluid flow. A bridge circuit detects changes in the signals from the two different pressure sensor portions creating a differential which is proportional to a change in liquid flow. The present invention reduces the need for calibration of pressure sensors and improves the detection of fluid flow. The present invention has many applications and can detect small changes in fluid flow and is particularly applicable to the medical field where in many procedures, small fluid flows must be measured or determined accurately.

A method is provided for low temperature catalyst-assisted atomic layer deposition of silicon-containing films such as SiO2 and SiN. The method includes exposing a substrate surface containing X—H functional groups to a first R1—X—R2 catalyst and a gas containing silicon and chlorine to form an X / silicon / chlorine complex on the surface, and forming a silicon-X layer terminated with the X—H functional groups by exposing the X / silicon / chlorine complex on the substrate surface to a second R1—X—R2 catalyst and a X—H functional group precursor. The method further includes one or more integrated in-situ reactive treatments that reduce or eliminate the need for undesired high-temperature post-deposition processing. One reactive treatment includes hydrogenating unreacted X—H functional groups and removing carbon and chlorine impurities from the substrate surface. Another reactive treatment saturates the silicon-X layer with additional X—H functional groups.