Patent application number | Description | Published |
20090218094 | Live Bottom Hole Pressure for Perforation/Fracturing Operations - A method of determining when to stop pumping proppant during hydraulic fracturing in a wellbore is described. By accurately detecting tip screen-out with a bottom hole pressure gauge mounted to a perforating gun, the optimal amount of proppant can be supplied to a fracture while avoiding the risks associated with wellbore screen-out. | 09-03-2009 |
20110024121 | METHOD AND APPARATUS FOR MULTILATERAL MULTISTAGE STIMULATION OF A WELL - A method enables stimulation of a well having a plurality of lateral wellbores. The method comprises deploying fracturing equipment downhole for isolated interaction with each lateral wellbore of the plurality of lateral wellbores. The method and the fracturing equipment are designed to enable fracturing of the plurality of lateral wellbores during a single mobilization. | 02-03-2011 |
20110114320 | STAND-ALONE FRAC LINER SYSTEM - A stand-alone frac liner that allows for fracturing of multiple lateral legs of a multilateral well on a single call out and rig-up of fracturing equipment. Tools and techniques are provided that include setting multiple stand-alone frac liners in multiple lateral legs of the multilateral well. The liners may rest in the legs physically untethered to surface equipment. Thus, a single call out of a frac string tubular and associated equipment may be used to frac the lateral legs in sequence from one leg to the next. This may be achieved without the requirement of removal of the tubular from the well or disconnect of surface fracturing equipment between the lateral fracture applications. Thus, a considerable amount of expenses associated with time and manpower may be saved. | 05-19-2011 |
20110152135 | VISCOELASTIC SURFACTANT ACID TREATMENT - A method of treating a subterranean formation penetrated by a wellbore involves introducing an acid treatment fluid through the wellbore into the formation. The treatment fluid is formed from a zwitterionic viscoelastic surfactant, an acid in an amount to provide the treatment fluid with an initial pH of ≦0 and a rheology enhancer. The treatment fluid has a high viscosity at the initial pH and a lower viscosity when the pH of the treatment fluid is raised to an intermediate pH of from greater than 0 to about 5. | 06-23-2011 |
Patent application number | Description | Published |
20090302617 | SAFETY INTERLOCKING DEVICE WITH ESCAPE UNLOCKING MEANS - A safety interlocking device has a locking unit for mounting on the safe side to a door relative to a hazardous region, and a locking cage for mounting on a door frame interacting with the door. In order to be able to open, from the hazardous region, the locked door and escape from the hazardous region, an escape unlocking device is provided for unlocking the safety interlocking device. The locking cage has a locking stop which is articulated to a base plate so as to be able to pivot about a pivot axis from an interlocking position into an emergency opening position. The escape unlocking device possesses at least one arresting tip which, in an escape position, releases the locking stop for pivoting into the emergency opening position. Provided between an emergency handle and the arresting tip is a stretched rod piece which is embodied so as to be displaceable together with the arresting tip. In the normal position of the escape unlocking (EU) device, the arresting tip is in arresting operative connection with a first arresting surface of the locking stop and a second arresting surface of the base plate. At least one of these operative connections can be released by displacement of the arresting tip in the rod direction. | 12-10-2009 |
20100180511 | LOCKING DEVICE - The invention relates to a locking device ( | 07-22-2010 |
20110062949 | SHIELDED POSITION SENSOR FOR TRANSLATIONALLY MOVING PARTS - A sensor is disclosed for monitoring a part which can move translationally relative to a sensor with reference to its position on the axis of motion. This part is for example a piston in a cylinder which is equipped with a sensor. The sensor can be actuated by means of a magnet which is oriented in the direction of motion with respect to the north and south pole and which is located on the movable part. The sensor has three reed contacts which are aligned in parallel and of which the first and the second reed contact are located in one plane and parallel next to one another with their lengthwise axes, by which they can be actuated almost at the same time by the magnetic field of the magnet which is located on the movable part. The third reed contact is located at a distance to the plane of the first and the second reed contact. This sensor with the first two reed contacts is mounted facing the actuating magnet. This arrangement has the advantage that an external magnetic field always actuated the third reed contact as well, if it can actuate the first two reed contacts. Then the sensor indicates an error report or an unsafe position, but never a safe position of the movable part. | 03-17-2011 |
Patent application number | Description | Published |
20120134425 | Method and System for Adaptive Interpolation in Digital Video Coding - Disclosed are techniques for adaptive interpolation filtering of luminance and chrominance samples in the context of motion compensation in video encoding or decoding. A two-dimensional interpolation filter of n×m coefficients may be separable, i.e., it may be separated into two one-dimensional filters with m and n coefficients, respectively. The bitstream may include, per video unit and sub-sample position, information indicating whether to use a newly-generated, a cached, or a default filter that may be a separable two-dimensional filter. The information may be structured in a way that takes advantage of the two-dimensional filter being separable. When a newly-generated filter is signalled, the bitstream may contain information pertaining to the characteristics of the newly-generated filter, such as its coefficients. A decoder may fetch this information from the bitstream to create the filters which are applied to samples of the video unit. An encoder may create a bitstream as described. | 05-31-2012 |
20120189064 | ADAPTIVE LOOP FILTERING USING MULTIPLE FILTER SHAPES - Disclosed are adaptive loop filtering techniques in the context of video encoding and/or decoding. For each video unit, the encoder can select a filter shape, and can place into the bitstream information that identifies the filter shape. At least one filter whose shape is the selected filter shape is used to loop filter at least one sample. At the decoder, a filter shape is obtained by decoding information that identifies the filter shape. At least one filter whose shape is the obtained filter shape is used to loop filter at least one reconstructed sample. Different filter shapes are also disclosed. | 07-26-2012 |
20120195367 | ADAPTIVE LOOP FILTERING USING TABLES OF FILTER SETS FOR VIDEO CODING - Disclosed are adaptive loop filtering techniques for video encoding and/or decoding. For a video unit, the encoder selects a set of predefined filters or generates a set of new filters, and places into the bitstream information identifying the set of predefined filters, or information defining the set of new filters. The set of filters may be used for loop filtering of at least one of the reconstructed samples of the video unit. At the decoder, a set of filters may be obtained by, decoding an index that identifies a set of predefined filters, or by decoding information related to a set of new filters. The obtained set of filters may be used for loop filtering of at least one decoded and reconstructed sample of the video unit. | 08-02-2012 |
Patent application number | Description | Published |
20090162592 | PROTECTIVE COATING FOR WINDOW GLASS HAVING ENHANCED ADHESION TO GLASS BONDING ADHESIVES - In one embodiment, the invention is a composition comprising:
| 06-25-2009 |
20100316828 | PROTECTIVE COATING FOR WINDOW GLASS - The invention is a composition comprising: a) one or more film forming resins having at least one functional group capable of polymerization; b) one or more reactive diluents capable of reacting with the film forming resin; c) one or more silicon, titanium, zirconium, aluminum or metal containing compounds capable of promoting adhesion of the composition to glass; d) one or more fillers capable of imparting abrasion resistance to the composition when cured; and e) one or more compounds which is reactive with the film forming resin which also contains at least one acidic moiety. The composition of the invention is useful as a frit on the window of a vehicle. | 12-16-2010 |
20120046375 | PROTECTIVE COATING FOR WINDOW GLASS - The invention is a composition comprising: a) one or more film forming resins having at least one functional group capable of polymerization; b) one or more reactive diluents capable of reacting with the film forming resin; c) one or more silicon, titanium, zirconium, aluminum or metal containing compounds capable of promoting adhesion of the composition to glass; d) one or more fillers capable of imparting abrasion resistance to the composition when cured; and e) one or more compounds which is reactive with the film forming resin which also contains at least one acidic moiety. The composition of the invention is useful as a frit on the window of a vehicle. | 02-23-2012 |
20130029074 | METHOD OF PRIMERLESS BONDING - The present invention relates to methods for attaching a plastic component to another component where the plastic component is bonded to the other component with an adhesive in the absence of a primer on the plastic component and the adhesive is substantially solvent free. In one embodiment, a coated transparent or translucent polycarbonate substrate is connected to a frame with a polyurethane adhesive containing silicon in the absence of a primer on the substrate; or with a substantially solvent free adhesive. The inventions also related to bonded articles made according to the disclosed methods. | 01-31-2013 |
20130216840 | POLYURETHANE BASED INSULATED GLASS SEALANT - Embodiments of the invention include insulated units and methods of producing the insulating units. The insulating units include a first surface, a structural seal disposed on at least portions of the first surface, and a second surface disposed on the structural seal. The structural seal includes the reaction product of at least one first isocyanate, at least one isocyanate reactive side, and at least one adhesion promoter including a reaction product of at least one secondary aminoalkoxy silane and at least one second isocyanate. | 08-22-2013 |
20130255880 | TWO-PART POLYURETHANE ADHESIVE FOR BONDING FIBER-REINFORCED PLASTICS - A two-part polyurethane adhesive system includes a resin component A and a curative B. The resin component A includes a monomeric polyisocyanate and a prepolymer. The curative B includes a of ether polyol having a molecular weight of from 3000 to 20,000 and another polyol having 4-8 hydroxyl groups and a molecular weight of from 200 to 1000. The system includes a tin (IV) catalyst, which is contained in the resin component, and a blocked aza-type catalyst, which is contained in the curative. The system has excellent shelf stability, gives an excellent open time at ambient temperatures, and cures rapidly when heated to 65° C. or higher. | 10-03-2013 |
20150068661 | SILYL TERMINATED PREPOLYMERS, METHOD FOR MAKING THEM AND ADHESIVE COMPOSITIONS MADE THEREFROM - The invention is an adhesive composition comprising a silyl terminated prepolymer having a number molecular weight average (Mn) of about 8,000 to about 80,000 g/mole, a filler, and a silanol condensation reaction catalyst. The silyl terminated prepolymer is comprised of a polymeric backbone of alkylene oxide and at least three urethane groups and at least two terminal groups comprised of a silicon atom having at least two alkoxy silane groups, wherein each silicon atom in the terminal groups is separated from the urethane groups in the polymeric backbone by an amount of alkylene oxide that has a molecular weight of 200 to 15,000 g/mole. | 03-12-2015 |
20150368529 | POLYURETHANE ADHESIVES CONTAINING ALKYL-SUBSTITUTED 4,4'-DI(AMINOCYCLOHEXYL)ALKANES, 2,4'-DI(AMINOCYCLOHEXYL)ALKANES AND/OR 2,2'-DI(AMINOCYCLOHEXYL)AMINES - Two component polyurethane adhesives contain (a) at least one alkyl-substituted 4,4′-di(aminocyclohexyl)alkane wherein each cyclohexyl group is alkyl-substituted in at least one position ortho to the amino group, (b) at least one 2,4′-di(amino cyclohexyl)alkane or 2,2′-di(aminocyclohexyl)alkane, (c) a mixture of (ii) at least one alkyl-substituted 4,4′-di(aminocyclohexyl)alkane wherein each cyclohexyl group is alkyl-substituted and (ii) at least one 2,4′-di(aminocyclohexyl)alkane and/or 2,2′-di(amino cyclohexyl)alkane, or (d) a mixture of 40 to 99.9% by weight (a), (b) or (c) with 0.1 to 60% by weight of at least one unsubstituted 4,4′-di(aminocyclohexyl)alkane, The adhesives also contain one or more polyols, in which at least 50% of the hydroxyl groups are secondary hydroxyls. These adhesive provide a useful combination of long open time and excellent sag resistance. | 12-24-2015 |
20160060382 | SILYL TERMINATED PREPOLYMERS, METHOD FOR MAKING THEM AND ADHESIVE COMPOSITIONS MADE THEREFROM - An improved silane modified polymer useful in adhesive compositions is made from a silane precursor material made by a process comprising reacting an organic compound having a backbone that is terminated by an amino group having at least one active amino hydrogen and a hydrolysable silane, wherein the backbone is comprised of at least one secondary amino group having one active amino hydrogen and a Michael addition acceptor compound, wherein the Michael addition compound fails to have a group reactive with an isocyanate group to form the silane precursor compound. The silane precursor compound is reacted with an isocyanate terminated polyurethane prepolymer to form a silane modified prepolymer. The silane modified prepolymer may then be cured with moisture and may be employed in an adhesive composition containing other components such as a plasticizer, catalyst and filler. | 03-03-2016 |