Williams, IA
Brandon P. Williams, Johnston, IA US
Patent application number | Description | Published |
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20140041390 | LEAN BURN INJECTORS HAVING MULTIPLE PILOT CIRCUITS - A fuel injector for a gas turbine engine includes a nozzle body defining a central axis and having a main fuel circuit. An air circuit is formed within the nozzle body inboard of the main fuel circuit. A primary pilot fuel circuit is formed within the nozzle body inboard of the air circuit. A secondary pilot fuel circuit is formed within the nozzle body inboard of the air circuit and outboard of the primary pilot fuel circuit. | 02-13-2014 |
Brandon P. Williams, Urbandale, IA US
Patent application number | Description | Published |
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20090211256 | Feed arm for a multiple circuit fuel injector - A feed arm for a multiple circuit fuel injector of a gas turbine engine. The feed arm includes an elongated tubular sleeve having a central bore with an interior wall defining an inner diameter, and an elongated fuel tube positioned within the bore of the tubular sleeve. The fuel tube includes a tubular wall defining an outer diameter, which is substantially equal to the inner diameter of the central bore. A primary fuel flow passage is formed within the tubular wall of the fuel tube and bounded by the interior wall of the tubular sleeve, and the primary fuel flow passage circumferentially extends around the fuel tube at least once along the axial length of the fuel tube. A secondary fuel flow passage extends through a central portion of the fuel tube, and the fuel tube is configured to facilitate heat transfer by conduction and/or convection. | 08-27-2009 |
20090277185 | PROPORTIONAL FUEL PRESSURE AMPLITUDE CONTROL IN GAS TURBINE ENGINES - Valve systems for controlling a flow of fuel in a gas turbine engine and related methods are provided. In one embodiment, the valve system includes a supply conduit, a proportional valve portion, and a pulsating valve portion. The supply conduit is adapted and configured for receiving and carrying a flow of fuel. The proportional valve portion is in fluid connection with the supply conduit adapted and configured to gradually adjust a pressure drop thereacross and thus a flow rate of fuel flowing therethrough. The pulsating valve portion is in fluid connection with the supply conduit, in parallel with the proportional valve portion, and is adapted and configured to rapidly adjust a pressure drop thereacross and thus a flow rate of fuel flowing therethrough. | 11-12-2009 |
20100037615 | MULTI-STAGE CHECK VALVE - A multi-stage check valve includes a valve housing defining an internal valve chamber. A main valve member within the valve chamber of the valve housing has an internal valve chamber. In the first position thereof the main valve member blocks fuel below a predetermined main pressure from flowing through a main fuel path. In the second position thereof the main valve member is displaced to allow fuel above the predetermined main pressure to flow through the main fuel path. The multi-stage check valve also includes a pilot valve member within the valve chamber of the main valve member. In the first position thereof, the pilot valve member blocks fuel below a predetermined pilot pressure from flowing through a pilot fuel path. In the second position thereof, the pilot valve member is displaced to allow fuel above the predetermined pilot pressure to flow through the pilot fuel path. | 02-18-2010 |
20100115955 | THERMAL MANAGEMENT FOR FUEL INJECTORS - Methods of managing fuel temperatures in fuel injectors for gas turbine engines include cooling fuel circuits by initiating fuel flow therethrough using opened, closed, and semi-open control techniques. A fuel injector for a gas turbine engine includes a feed arm having a fuel inlet fitting for delivering fuel to at least one fuel conduit extending through the feed arm. A nozzle body depends from the feed arm and has at least one fuel circuit extending therethrough. The fuel circuit is configured and adapted to receive fuel from the feed arm and to issue fuel from an exit orifice of the nozzle body. Sensing means are provided adjacent to the at least one fuel circuit. The sensing means are configured and adapted to provide temperature feedback in order to control fuel flow in the at least one fuel circuit to maintain fuel temperature within a predetermined range. | 05-13-2010 |
20100287946 | Lean direct injection atomizer for gas turbine engines - A lean direct injection fuel nozzle for a gas turbine is disclosed which includes a radially outer main fuel delivery system including a main inner air swirler defined in part by a main inner air passage having a radially inner wall with a diverging downstream surface, an intermediate air swirler radially inward of the main inner air swirler for providing a cooling air flow along the downstream surface of the radially inner wall of the main inner air passage, and a radially inner pilot fuel delivery system radially inward of the intermediate air swirler. | 11-18-2010 |
20110067403 | LEAN BURN INJECTORS HAVING MULTIPLE PILOT CIRCUITS - A fuel injector for a gas turbine engine includes a nozzle body defining a central axis and having a main fuel circuit. An air circuit is formed within the nozzle body inboard of the main fuel circuit. A primary pilot fuel circuit is formed within the nozzle body inboard of the air circuit. A secondary pilot fuel circuit is formed within the nozzle body inboard of the air circuit and outboard of the primary pilot fuel circuit. | 03-24-2011 |
20120227410 | ACTIVE PATTERN FACTOR CONTROL FOR GAS TURBINE ENGINES - A method of actively controlling pattern factor in a gas turbine engine includes the steps of issuing fuel into a combustion chamber of a gas turbine engine through one or more circumferentially disposed fuel injectors, determining an initial circumferential pattern factor in the combustion chamber, and adjusting fuel flow through one or more selected fuel injectors based on the initial circumferential pattern factor, to yield a modified circumferential pattern factor in the combustion chamber. The step of determining the circumferential pattern factor can include the steps of detecting a chemiluminescent signature within the combustor, correlating the chemiluminescent signature to an equivalence ratio, and computing the initial circumferential pattern factor based on the equivalence ratio. Alternatively, the step of determining the circumferential pattern factor can include the steps of measuring temperatures at a plurality of circumferential positions at the combustor exit and computing the initial circumferential pattern factor based on the measured temperatures. | 09-13-2012 |
20120247119 | ACTIVE PATTERN FACTOR CONTROL FOR GAS TURBINE ENGINES - A method of actively controlling pattern factor in a gas turbine engine includes the steps of issuing fuel into a combustion chamber of a gas turbine engine through one or more circumferentially disposed fuel injectors, determining an initial circumferential pattern factor in the combustion chamber, and adjusting fuel flow through one or more selected fuel injectors based on the initial circumferential pattern factor, to yield a modified circumferential pattern factor in the combustion chamber. The step of determining the circumferential pattern factor can include the steps of detecting a chemiluminescent signature within the combustor, correlating the chemiluminescent signature to an equivalence ratio, and computing the initial circumferential pattern factor based on the equivalence ratio. Alternatively, the step of determining the circumferential pattern factor can include the steps of measuring temperatures at a plurality of circumferential positions at the combustor exit and computing the initial circumferential pattern factor based on the measured temperatures. | 10-04-2012 |
20140042347 | IMPULSE DUTY CYCLE VALVES - A valve includes a valve housing having a fluid inlet and a fluid outlet with a longitudinal axis defined through the valve housing. The valve also includes a toggle mechanism configured and adapted to cycle flow from the fluid inlet to the fluid outlet through a plurality of different flow rates in response to repeated impulses. The toggle mechanism is also configured to hold flow rate steady between impulses. | 02-13-2014 |
Brandon Philip Williams, Urbandale, IA US
Patent application number | Description | Published |
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20090204306 | METHODS AND SYSTEMS FOR MODULATING FUEL FLOW FOR GAS TURBINE ENGINES - A method of combustion stability control for a gas turbine engine is provided, and includes the steps of receiving by a stability controller, information regarding environmental and operating conditions, and comparing the environmental and operating conditions to pre-programmed information to determine if a likelihood of combustion instability exists. The method further includes the steps of determining optimal fuel modulation frequency and amplitude for the environmental condition to reduce combustion instability, if a likelihood of combustion instability exists, and actuating at least one fuel modulation valve to, at the optimal fuel modulation frequency and amplitude, reduce combustion instability, if a likelihood of combustion instability exists. Systems for modulating fuel flow are also provided. | 08-13-2009 |
20100205971 | Fuel nozzle having aerodynamically shaped helical turning vanes - A fuel nozzle for a gas turbine engine is disclosed which includes a nozzle body having a longitudinal axis, an elongated annular air passage defined within the nozzle body, and a plurality of circumferentially spaced apart axially extending swirl vanes disposed within the annular air passage, wherein each swirl vane has multiple joined leads and a variable thickness along the axial extent thereof. | 08-19-2010 |
Brandon Phillip Williams, Urbandale, IA US
Patent application number | Description | Published |
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20110005232 | AERODYNAMIC SWEPT VANES FOR FUEL INJECTORS - A fuel nozzle for a gas turbine engine includes a nozzle body having a longitudinal axis. An elongated annular air passage is defined within the nozzle body. A plurality of circumferentially spaced apart axially extending swirl vanes is disposed within the annular air passage. Each swirl vane has an axially swept cross-sectional profile along the radial extent thereof. | 01-13-2011 |
20120117972 | THERMAL MANAGEMENT FOR FUEL INJECTORS - Methods of managing fuel temperatures in fuel injectors for gas turbine engines include cooling fuel circuits by initiating fuel flow therethrough using opened, closed, and semi-open control techniques. A fuel injector for a gas turbine engine includes a feed arm having a fuel inlet fitting for delivering fuel to at least one fuel conduit extending through the feed arm. A nozzle body depends from the feed arm and has at least one fuel circuit extending therethrough. The fuel circuit is configured and adapted to receive fuel from the feed arm and to issue fuel from an exit orifice of the nozzle body. Sensing means are provided adjacent to the at least one fuel circuit. The sensing means are configured and adapted to provide temperature feedback in order to control fuel flow in the at least one fuel circuit to maintain fuel temperature within a predetermined range. | 05-17-2012 |
20140361531 | TUBE STRAIN RELIEVERS - A strain reliever for a hollow tube is disclosed. The strain reliever has a fitting dimensioned to fit at a tube segment and a tapered sleeve extending from the fitting. The tapered sleeve is configured to surround the tube segment and to provide relief of strain imposed by forces exerted on the tube. Strain relievers having helical conic and slotted tapered sleeves are also described. | 12-11-2014 |
Danny Williams, Clarinda, IA US
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20130067710 | Magnetic Pinion Shaft Seal Installation Tool - A tool for replacing a seal on a shaft includes a cylindrical drive member with concentric, axial counterbores forming a through passage that receives a drive handle from either end of the drive member. Magnetized opposite end faces retain differently sized seals thereon whereby a seal mounted on either end face may be driven onto a shaft by inserting and driving the drive handle at the opposite end. | 03-21-2013 |
Danny L. Williams, Clarinda, IA US
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20090089991 | VALVE SPRING COMPRESSOR - A tool for compression of a spring comprises a yoke, a longitudinal bore defining an axis and three radial slots extending from the axis of the bore. Arms associated with an alignment pin are pivotal and engage hooked legs of the tool slidably mounted in two opposed radial slots to adjust the lateral spacing thereof. A drive rod positioned between the legs includes an anvil that may be driven to compress a coil spring engaged between the legs and the anvil. | 04-09-2009 |
20140041177 | SEAL DRIVER - A seal installation tool includes a drive handle upon which a metal drive plate is mounted coaxially with a seal retention member. The seal retention member includes multiple elastic, radial arms and is positioned coaxially with the drive handle and drive plate. The elastic arms center and retain a seal thereon and are capable of gripping multiple sizes and shapes of seals for placement in a seal housing. | 02-13-2014 |
Greg Williams, Pella, IA US
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20130200188 | SIZING SCREENS FOR COMMINUTING MACHINES - A grinder for grinding relatively loose materials includes a reducing unit and a screen arrangement. The arcuate screen defines a plurality of tracks of apertures that extend in a cutting direction of the cutters. In some cases, only one respective cutter passes over each track and each cutter passes over only the respective one of the tracks. The width of a cutter may be greater than a width of the apertures of a track. The apertures of the screen arrangement may form chevron patterns. The screens may be clamped to a frame by coupling members extending through notches in the screen. | 08-08-2013 |
20130200189 | DEFLECTION STRUCTURE FOR TUB GRINDER - A tub grinder includes a rotatable tub positioned above a floor; a grinder that has cutters defining a circular reducing boundary when the grinder is rotated in a reducing direction; and a deflection structure positioned near the floor above the grinder. The deflection structure includes first and second deflecting portions. The second deflection structure is oriented closer to horizontal than the first deflection structure. At least part of the second deflecting portion is located below a top, dead center of the reducing boundary of the grinder. The deflecting structure limits the trajectory of material ejected from the grinder to a departure angle of about 25 degrees. | 08-08-2013 |
20150251187 | MATERIAL REDUCING APPARATUS INCLUDING AN AUTOMATICALLY POSITIONED THROWN OBJECT DEFLECTOR - The present disclosure relates to a material reducing apparatus adapted to be coupled to a vehicle by a pivot arm or other structure. The material reducing apparatus includes a reducing head with rotary reducing component. The reducing head can be titled about a tilt axis relative to the vehicle and can be raised and lowered relative to a vehicle. The reducing head has a thrown object deflector that automatically moves relative to the rotary reducing component when the reducing head is tilted relative to the vehicle. | 09-10-2015 |
Ian Williams, Cedar Rapids, IA US
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20100319874 | BIO-BASED BINDER SYSTEM - A bio-based binder system for use in preparing foundry molds. In a preferred embodiment, the system includes the use of a) a polyermizable hydroxyl-containing component comprising a saccharide, b) an isocyanate component, and c) a catalyst, and preferably amine catalyst, component adapted to catalyze the polymerization of a) and b), in the presence of a foundry aggregate such as sand. The system can be used in any suitable manner, including in either a cold box process or no bake process as described herein. | 12-23-2010 |
James R. Williams, Clarion, IA US
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20140345888 | AGRICULTURAL TOOLBAR TRANSPORT SYSTEM - A toolbar transport system for extending and retracting a large agricultural toolbar. Forward and rearward folding segments of the toolbar allow the toolbar assembly to retract against the sides of the vehicle without interfering with the steering wheels. A forward-folding segment and rearward-folding segment of each lateral toolbar section connect to provide steering wheel clearance in the transfer position and an integrated lateral toolbar with regularly-spaced ground-engaging implements in the application position. Gauge wheel assemblies assist in the extension and deployment of the toolbar assembly. | 11-27-2014 |
20150195986 | AGRICULTURAL INTER-SEEDER - A system for planting cover crop seeds in fields with standing row crops. A high-clearance agricultural vehicle is provided with a high-clearance toolbar. A plurality of ground-engaging arm assemblies depend from the toolbar. The toolbar is provided with a plurality of seeders that may be provided on the arm assemblies. The arm assemblies are provided with trailing portions to which are attached soil sealers. The system travels through the field, delivering seeds between rows of standing crops. The soil sealers cover the seeds with soil. | 07-16-2015 |
James S. Williams, Pella, IA US
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20120103208 | Rotary Hay Wedge for Round Balers - A baler with a pickup and a baling chamber with an inlet, the bale forming chamber having a first and second side panel, a plurality rollers rotatably disposed respectively about parallel axes. A bale edge engaging member is rotatably attached to the frame about an axis of rotation substantially parallel to said axes of the rollers, the bale edge engaging member being disposed adjacent an inside portion of one of the side panels in overlapping arrangement with a bale being formed in the baling chamber at least at times when a bale is being formed. The bale edge engaging member is spaced from the inlet to the bale forming chamber so as to not impede material entering the bale forming chamber from a pickup. Alternate embodiments have the rotatable bale edge engaging member/disc on a fixed axis adjacent the baling chamber when the bale is almost completed. | 05-03-2012 |
20130239825 | ROTARY HAY WEDGE FOR ROUND BALERS - A baler with a pickup and a baling chamber with an inlet, the bale forming chamber having a first and second side panel, a plurality rollers rotatably disposed respectively about parallel axes. A bale edge engaging member is rotatably attached to the frame about an axis of rotation substantially parallel to said axes of the rollers, the bale edge engaging member being disposed adjacent an inside portion of one of the side panels in overlapping arrangement with a bale being formed in the baling chamber at least at times when a bale is being formed. The bale edge engaging member is spaced from the inlet to the bale forming chamber so as to not impede material entering the bale forming chamber from a pickup. Alternate embodiments have the rotatable bale edge engaging member/disc on a fixed axis adjacent the baling chamber when the bale is almost completed. | 09-19-2013 |
Jerry A. Williams, Montezuma, IA US
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20130176125 | MANAGING A POTENTIAL CHOKING CONDITION WITH A MONITORING SYSTEM - A method, system or computer usable program product for managing a potential choking condition with a monitoring system including monitoring by the monitoring system by detecting relative positions of a set of emitters disposed along an object, wherein a choking condition is indicated by the set of emitters being on close proximity to a neck portion of a body and arranged in a potentially choking configuration, and responsive to the determination of the choking condition, the monitoring system performing an action. | 07-11-2013 |
20130345664 | MANAGING BLOOD GLUCOSE LEVELS - A method, computer usable program product, or a system for managing a blood glucose level of a person including providing a device worn exterior to the person for monitoring a set of treatment factors and a set of environmental factors associated with the person, predicting a blood glucose level for the person based on the set of treatment factors and the set of environmental factors, and responsive to predicting a blood glucose level for the person dropping lower than a predetermined minimum value, supplying carbohydrates to the person. | 12-26-2013 |
Lary Williams, Dubuque, IA US
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20100043368 | HEADER FLOAT SYSTEM FOR USE WITH AN AGRICULTURAL WINDROWER OR COMBINE - An agricultural harvester includes a traction unit and a crop harvesting header coupled with the traction unit. The header includes a main frame with a right hand (RH) side and a left hand (LH) side. A RH gauge wheel is movably coupled with the RH side of the main frame, and a RH hydraulic cylinder is coupled between the RH gauge wheel and the main frame. A first hydraulic circuit is coupled with the RH hydraulic cylinder and configured to control an operating height of the RH gauge wheel. A LH gauge wheel is movably coupled with the LH side of the main frame, and a LH hydraulic cylinder is coupled between the LH gauge wheel and the main frame. A second hydraulic circuit is coupled with the LH hydraulic cylinder and configured to control an operating height of the LH gauge wheel. The second hydraulic circuit is independent from the first hydraulic circuit. A third hydraulic circuit is coupled with a vertical position hydraulic cylinder and configured to operate at a predetermined operating pressure, whereby a portion of the weight of the header is carried by the traction unit. The third hydraulic circuit is independent from each of the first hydraulic circuit and the second hydraulic circuit. | 02-25-2010 |
R. Christopher Williams, Ames, IA US
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20150337078 | POLY(ACRYLATED POLYOL) AND METHOD FOR MAKING AND USING THEREOF AS ASPHALT RUBBER MODIFIERS, ADHESIVE, FRACKING ADDITIVES, OR FRACKING FLUIDS - The present invention relates to a thermoplastic copolymer, block copolymer, and statistical copolymer comprising plural acrylated polyol monomeric units having different degrees of acrylation of hydroxyl groups. The acrylated polyol monomeric units have an average degree of acrylation greater than 1 and less than the number of the hydroxyl groups of the polyol. The present invention also relates to a method of making the thermoplastic copolymer, block copolymer, and statistical copolymer, and using them in various applications, such as asphalt rubber modifiers, adhesives, or an additive in a fracking fluid for oil fracking. | 11-26-2015 |
Ronald Christopher Williams, Ames, IA US
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20100275817 | ASPHALT MATERIALS CONTAINING BIO-OIL AND METHODS FOR PRODUCTION THEREOF - An asphalt binder includes asphalt and an asphalt binder modifier, which includes bio-oil. The asphalt binder can include a carboxyl additive. The asphalt can optionally include polymer-modified asphalt. An asphalt material includes mineral aggregate, an asphalt material binder including asphalt, and an asphalt binder modifier including bio-oil. A method for making the asphalt binder is disclosed. The asphalt material includes asphalt pavement and roofing shingles. The asphalt binder can be emulsified with water and a surfactant for use as a weatherproofing sealant or as an adhesive. | 11-04-2010 |
20110294927 | BIO-OIL FORMULATION AS AN ASPHALT SUBSTITUTE - A bio-oil formulation, useful as an asphalt binder substitute in pavement and roofing shingles, includes bio-oil and a polymer additive. The bio-oil binder can include an asphalt additive. The bio-oil binder can be emulsified with water and a surfactant for use as a weatherproofing sealant or as an adhesive. A method for making the bio-oil binder is disclosed. | 12-01-2011 |
20130184383 | THERMOPLASTIC ELASTOMERS VIA ATOM TRANSFER RADICAL POLYMERIZATION OF PLANT OIL - The present invention relates to a block copolymer comprising at least one PA block and at least one PB block. The PA block represents a polymer block comprising one or more units of monomer A, and the PB block represents a polymer block comprising one or more units of monomer B. Monomer A is a vinyl, acrylic, diolefin, nitrile, dinitrile, or acrylonitrile monomer. Monomer B is a radically polymerizable plant oil monomer containing one or more triglycerides. The present invention also relates to a method of preparing a thermoplastic block copolymer by radical polymerizing a radically polymerizable monomer with a radically polymerizable plant oil monomer containing one or more triglycerides, in the presence of an initiator and a transition-metal catalyst system to form the thermoplastic block copolymer. The polymerized plant oil-based block copolymers are useful in a variety of applications, such as asphalt modifiers, rubber compositions, adhesives, tires, in the automobile industry, footwear, packaging, etc. | 07-18-2013 |
20140200291 | ASPHALT MATERIALS CONTAINING BIO-OIL AND METHODS FOR PRODUCTION THEREOF - An asphalt binder includes asphalt and an asphalt binder modifier, which includes bio-oil. The asphalt binder can include a carboxyl additive. The asphalt can optionally include polymer-modified asphalt. An asphalt material includes mineral aggregate, an asphalt material binder including asphalt, and an asphalt binder modifier including bio-oil. A method for making the asphalt binder is disclosed. The asphalt material includes asphalt pavement and roofing shingles. The asphalt binder can be emulsified with water and a surfactant for use as a weatherproofing sealant or as an adhesive. | 07-17-2014 |
20140343192 | THERMOPLASTIC ELASTOMERS VIA REVERSIBLE ADDITION-FRAGMENTATION CHAIN TRANSFER POLYMERIZATION OF TRIGLYCERIDES - The present invention relates to a thermoplastic block copolymer comprising at least one PA block and at least one PB block. The PA block represents a polymer block comprising one or more units of monomer A, and the PB block represents a polymer block comprising one or more units of monomer B. Monomer A is a vinyl, acrylic, diolefin, nitrile, dinitrile, acrylonitrile monomer, a monomer with reactive functionality, or a crosslinking monomer. Monomer B is a radically polymerizable triglyceride or mixtures thereof, typically in the form of a plant or animal oil. The present invention also relates to a method of preparing a thermoplastic block copolymer or novel thermoplastic statistical copolymers by polymerizing a radically polymerizable monomer with a radically polymerizable triglyceride or mixtures thereof via reversible addition-fragmentation chain-transfer polymerization (RAFT), in the presence of an free radical initiator and a chain transfer agent. | 11-20-2014 |