Abstract: A guyed tower is used to support wireless communication equipment and/or other types of loads. The guyed tower is fixedly attached to a foundation, and a pole tower is erected within a middle region of the guyed tower. This pole tower is fixedly attached both to the foundation and to the guyed tower. Bending moments are transferred from the guyed tower to the pole tower via the collar that is disposed about the guyed tower. Thus, the presence of the pole tower within the middle region of the guyed tower increases the load capacity and stability of the guyed tower.

Abstract: The window scoop is an item that when properly installed on an exterior window will eliminate rain from coming in the house, eliminate pollen and air contaminants, will detour burglar's from breaking in your property, will save on electric bill. Will protect house in severe weather conditions. Will deaden sound from outside sources. Once installed needs no maintenance.

Abstract: The structural framing system comprises a steel beam that supports flooring components interconnected through the addition of a solidifying material such as poured concrete. A structural framing system is created by anchoring steel beams to vertical columns, spanning floor sections between the steel beams, pouring concrete into the interior of the beams and contacting the flooring components, and then forming a rigid joint between the steel beam, floor sections and columns through the addition of a bonding layer.

Abstract: A vent cover plate system for the register of a ventilation system that securely and snugly fits over the register thereby blocking the flow of air from that register. The vent cover plate is releasably attached to the register by hook and loop fastening material, magnetic material and mixtures thereof, and can include a rectangular strip of rubber tubing insulation to provide an air tight seal. The vent cover plate system allows for the localized and selective control of airflow in a room or building. Therefore, the specific ventilation requirements of a room or building can be readily achieved.

Abstract: A composite panel includes a first skin including composite material, a second skin including drywall material, and a foam core therebetween. A plastic connector extends along side edges of the skins for connecting the panel to another composite panel including a mating connector. The connector includes a slot extending parallel to the side edges for receiving a pin therein, whereby the panel may be connected to another composite panel having a similar connector and slot. An I-beam is bonded between the skins in the cavity that includes a chase for receiving wiring or other utilities therein. A “U” shaped channel is also bonded between the upper edges of the first and second skins, thereby defining a recess between the upper edges for receiving a top plate to secure a roof structure to the panel.

Abstract: A utility panel system is provided for open office spaces, and the like. Each utility panel has a relatively thick, skeleton-like frame, with a foot and opposite sides shaped for interconnection with like panel frames to create a substantially freestanding utility panel system. Cover panels are detachably connected to the opposite faces of each panel frame to enclose the same, and provide ready access to the panel interior. Horizontal utility troughs extend continuously between the opposite sides of each panel frame in a vertically stacked relationship. The utility troughs have open ends located at the opposite panel sides, and are positioned such that when adjacent utility panels are interconnected in a side-by-side relationship, the utility troughs are aligned to form multiple raceways. Panel connectors are provided to connect the utility panels with one or more of a variety of existing partition panels, such that the utility panels act as a spine which supplies utilities to the existing partition panels.

Abstract: A precast composite building system usable for walls, roofs, and floors of buildings, comprising a concrete composite panel element having embedded steel I-beams, wire mesh, embed plates, and steel tension reinforcement bars interconnected vertically, horizontally, and angularly by columnar elements rigidly fixed to the supporting foundation, embedded into the panel elements affixed to a transverse steel beam so as to form a perimeter tie-beam connection structure to which additional floor, roof, and wall elements are attached, forming a unitary, superior, load-bearing structure.

Abstract: A building structure offset uses hexagon structures assembled in an offset layering architecture to construct walls, floors and roofs. Hexagon building structures include interior panels adhered to both sides of a foam core. The structures also include radial cutouts the corners for offset layering assembly with another structure. Peg retainers selectively secure the hexagon building structures together. Fastening holes provide fastener locations for screwing or bolting through the layers of the hexagon structures. The holes align with an offset layer of hexagons when assembled in the axial direction. Conduit holes are selectively located depending on the fastening technique selected. The system includes five derivatives of hexagon building structures and a header, providing square, triangular, and curved geometries when assembled. Since hexagon buildings are built from hexagon building structures without customization, hexagon buildings can be rebuilt, modified, or recycled using the same materials.

Abstract: A composite frame member and a method for making the same. In one embodiment, the frame member is a door frame including a plurality of framing members, each including a core formed from a foamed or cellulosic material that includes a wall surface adapted to be mounted within a cavity formed in the wall of the house or other building with which the frame is to be used, and a door surface is opposed to the wall surface and is adapted to extend within the cavity. The core preferably includes a base member and a stop member mounted on the base member. Each framing member further includes a resilient shell, which, in some embodiments, may be snap-fit on, or adhesively bonded to, the core. A brickmold member is also disclosed, as are various methods for making the frame and brickmold members.

Abstract: Disclosed is a geogrid comprising a sheet main body formed with a plurality of through holes through which soil passes; at least one connector protruded from a surface of the sheet main body; and at least one accepter positioned opposite the connector and accepting the connector of another geogrid. With this configuration, the geogrid can be conveniently, carried, maintained and constructed, and is improved in durability.

Abstract: A joist (10) comprises an upper chord (12), a lower chord (14) and a plurality of compression and tension webs (16/18) extending between the chords (12/14) and secured thereto by means of bolts (50). A single bolt (50) per connection or nodal point is used to secure the compression and tension webs (16/18) to the chords (12/14). The metal joist (10) can easily be assembled in a shop or directly on site without highly qualified labor.

Abstract: Retrofit connectors that secure together the outside sheathing and underlying structural members of wood-frame or masonry houses, preventing damage when subjected to lateral stresses from a hurricane, or transverse loads from an earthquake. The connectors have special bushings and bearing surfaces that tie the outside sheathing and underlying structural members together, but allow deflection, and transfer of energy to other structural members. Different embodiments of the connectors allow them to adapt to most wood-frame and masonry homes, and to most roof pitches.

Abstract: In an articulated-arm awning comprising articulated arms that are supported via wall holders and the free outer end of which is connected in an articulated fashion to a drop-out profile, provision is made for the drop-out profile, as seen in the cross-section, to be designed as a U-profile that is open towards the wall holders and which, in the retracted position, largely encompasses the folded articulated arms.

Abstract: A two-piece doorbeam including a relatively low-cost, low-strength body and a relatively high-cost, high-strength insert. The insert is hat-shaped and crimped within the body. The insert provides improved impact strength where needed, providing the doorbeam the desired strength at relatively low weight and low cost.

Abstract: The present invention provides support apparatus for manufacturing equipment comprising a support pedestal having (1) a plurality of support legs, including at least one support leg aligned to each one of a plurality of load-bearing mounting feet found on the bottom of the manufacturing equipment to be supported by the pedestal, and a frame disposed on the plurality of support legs; and/or (2) a frame with an outline which substantially duplicates the bottom outline of the manufacturing equipment to be supported, and a plurality of support legs coupled to the frame. The support apparatus additionally may comprise at least one facilities connection locator fixedly mounted to the support frame so as to provide facilities connection locations for aligning facilities supply lines to the manufacturing equipment.

Abstract: The present invention provides a method of laying and mechanically joining panels, especially floor panels. In a first step a first panel is already located in a first row. A second panel is positioned in a second row in a first position in relation to the first panel. A third panel is now brought into the second row and into the first position in relation to the first panel. In this position, there is a mutual distance between the adjacent edges of the second and third panel. In a second step the second and third panel are angled into the third mutual position in relation to the first panel. Thereby, the second and third panel each achieve the possibility of easy displacement in the third direction in relation to the first panel. In a third step one or both of the second and third panel are moved in relation to the first panel. By this displacement the second and third panel get in a second position in relation to each other.

Abstract: A plant packaging system and method comprising a combination of a protective upper portion and a decorative lower portion having a base portion and a skirt portion for packaging a potted plant or a botanical item and a growing medium without a pot. The upper portion may be detachable from the lower portion of the sleeve. The lower portion may have a skirt portion which has a non-linear upper peripheral edge. The lower portion may be tapered and may have a gusset in the lower end.

Abstract: A banding fixture including a body having a horizontal opening therein, a carriage movable into and out of the horizontal opening, a recess in the carriage, the carriage with the recess therein movable into the horizontal opening with an upper surface on the carriage in underlying near contiguous relationship to an undersurface of a plate on the body, and a workpiece-receiving slot in the body above the horizontal opening. A method of banding a workpiece including the steps of placing a band into spaced slots having sides, pressing a workpiece overlying a central portion of the band which is not in the slots into a recess in a member, and moving the member relative to a surface so that the ends of the band which extend beyond the workpiece are pressed together in overlapping relationship as the member passes in contiguous relationship to the surface.

Abstract: A sleeve like container for wrapping a potted plant or floral display wherein the sleeve is formed from an integral, suitably cut blank of sheet material joined at two sides thereof to form an open ended container, the container having a tapered side wall. The container is shaped to support a pot holding a plant or floral display. A window formed in the side wall of the container provides access to the pot thereby enabling convenient placement of a label or for reading a label previously affixed to the pot.

Abstract: A single-handed opening mechanism for a container (1) holding a pourable substance comprising an elongate sealing element (2) which is moveable from a first closed position to a second open position. The elongate sealing element (2) is deformable and moves from the first closed position to the second deformed open position by the application of a squeezing force applied by the user's hand substantially along the length of the elongate sealing element (2).

Abstract: Glass medical devices such as medical containers are manufactured and annealed by heating in an oven which produces a clean device having a low bio-burden. Plastic medical devices and medical containers are formed by plastic molding devices which produce a clean device. The clean devices are immediately transferred to a controlled environment to maintain a clean work area. The work area can be a clean room or localized area to avoid the need to maintain cleanliness levels in an entire room. A localized area uses a housing assembly having a HEPA filter coupled to an air inlet to filter the air entering the housing. An air blower is coupled to the air inlet to feed filtered air into the housing assembly and to maintain a positive air pressure in the housing assembly to prevent unfiltered outside air from entering. Syringe tip closures can be introduced into the housing assembly, where syringe barrels and tip closures are cleaned with filtered ionized air and the tip closures are coupled to the barrels.

Abstract: A machine and process for packaging armed sutures into tray packages. The machine has a frame with a rotatable indexing disc member mounted to the top of frame. A plurality of tool nests are rotatably mounted to the top of the indexing disc. Tray packages mounted in the tool nests are rotated to wind sutures into a suture channel in the packages. A stylus having a front nose member and a rear heel member guides suture into the suture channel.

Abstract: An automatic packaging apparatus has an arraying and supplying station, a sorting station and a packaging station. The arraying and supplying station forcibly arrays and supplies encased products to orient their caps in one direction. The sorting station selectively sorts the arrayed encased products to a first feed path for feeding the encased products to package the encased products in a abreast-arrayed attitude and a second feed path for feeding the encased products to package the encased products in a tandem-arrayed attitude. The packaging station automatically packages the encased products by a shrink sheet in the abreast-arrayed attitude or the tandem-arrayed attitude.

Abstract: A mailer for shipping cells contained in a cell culture device, wherein the mailer comprises a containment system that can absorb and contain within the mailer a fluid that may leak from the cell culture device. The containment system comprises a gas-permeable absorbent material adapted to surround the cell culture apparatus; and a liquid impermeable layer which seals the absorbent material so as to contain any fluid released within the mailer.

Abstract: A mailer for shipping cells contained in a cell culture apparatus, wherein the mailer comprises a containment system that can absorb and contain within the mailer a fluid that may leak from the cell culture apparatus. The containment system comprises an absorbent material that surrounds the cell culture apparatus; a liquid impermeable layer which seals the absorbent material so as to contain the fluid within the mailer; and a leak proof seal formed between a top panel of the mailer and a bottom section of the mailer into which is inserted the cell culture apparatus.

Abstract: A canning machine for a foodstuff product (2), such as tuna fish and similar, comprises a conveyor belt (1) suitable for carrying the foodstuff product (2) in a compressing and shaping device comprising a knife (11) suitable for cutting substantially parallelepipedal portions (12) of the foodstuff product (2) and a compression channel (7) closed at one end by means of a shaping member (8) and at the other end by means of a compactor (9) slidable in the compression channel (7). Two openings (14) are made in the bottom wall of the compression channel (7) in order to allow the passage of a pair of dies (16) and of a pair of ejecting pistons (15) which in their initial position close said openings (14) without substantially protruding into the compression channel (7). Said ejecting pistons (15) are capable of a cyclic movement comprising a backward movement with respect to the compressing and shaping device, a forward movement through said openings (14) and a movement of return to the initial position.

Abstract: The present invention relates to a canning machine for a foodstuff product (2), such as tuna fish or similar, comprising a conveyor belt (1) suitable for carrying the foodstuff product (2) into a compressing and shaping device, a pair of dies (14) suitable for shearing two cakes (22) from each portion (12) of the foodstuff product (2) and a pair of ejecting pistons (20) suitable for pushing said cakes (22) of into cans (19). Said compressing and shaping device comprises a compression channel (7) inside which is arranged a shaping member (8) provided on the bottom thereof with a separating wedge (13) and a pair of side shaping members (15) slidably arranged in a sliding channel (16) which intersect perpendicularly the compression channel (7). Each side shaping member (15) has an end provided with a semi-cylindrical concavity suitable for penetrating in the compression channel (7) by sliding between one die (14) and the bottom of the shaping member (8).

Abstract: A mandrel for an automatic packaging machine enables a loading of product when a great precision is required or when the characteristics of a product will not tolerate mandrels with a plurality of separate parts. The mandrel is machined with great precision from a block of metal. A conveyor on the automatic packaging machine carries a plurality of mandrels around a closed path. To enable an exchange between different types of mandrels, an air cylinder controlled quick coupler enables an installation of the mandrel on and a release of the mandrel from the conveyor. The quick coupler is a stud on the bottom of each mandrel and a slide at each location on the conveyor where a mandrel is carried. The slide has a keyhole with a large end which allows the stud to pass into and out of the keyhole and be released from the packaging machine. The stud is captured in the small end of the keyhole.

Abstract: An air filtering enclosure for a vehicle to minimize the amount of debris entering the radiator of the vehicle is provided. The enclosure consists of a shell having a set of interfitting interior and exterior members. Mounted with the interior member are clips designed to mate with a series of compatibly arranged brackets on the vehicle frame. Attached opposite the clips are handles which a user may grasp to easily install and remove the shell from a vehicle. Interior and exterior members form a frame which encases sheets of perforated screening to restrict the introduction of debris into the radiator. The shell is completed with a rubber seal enabling tight sealing of the enclosure to the vehicle on which it is attached.

Abstract: An air induction system comprises flow body (32) and a filter housing (20). The filter housing (20) has a first housing portion (36) and a second housing portion (40) in communication with the air flow body (32). A filter (44) is disposed in the filter housing (20). A connector comprises a wing (54) mounted to a post (70) extending from the first housing portion (36) and a slot (56) on the second housing portion (40). (FIG. 4). The first housing portion (36) has at least one cutout (60) adjacent post (72). (FIG. 4).

Abstract: An air filtering device including a circular plate, plurality of fan blades fixedly attached to the circular plate, the fan blades extending downwardly from the lower surface of the circular plate; a filter frame having an air permeable cylindrical inner wall, having an upper wall, having a lower wall, and having an air permeable cylindrical outer wall, the air permeable cylindrical inner wall, the air permeable cylindrical outer wall, the upper wall and the lower wall defining a cylindrical filtering media containing space; air filtering media extending annularly around the air permeable cylindrical inner wall within the cylindrical filtering media containing space; and, filter frame attaching means attaching the filter frame so that it extends annularly around the outer edges of the fan blades.

Abstract: The present invention relates to a structure for confirming as to whether a filter is mounted into a vacuum cleaner. The structure for a vacuum cleaner according to the present invention comprises a cover including a discharging port for discharging air from which foreign materials are removed, a movable member of which positions are changed depending on coupling states thereof, and a support portion for moving the movable member; and a filter including a coupling means having a plurality of protrusions coupled to the support portion of the cover, a plurality of indented portions formed between the plurality of the protrusions, and an engagement piece formed to be spaced apart from the protrusions for changing the position of the movable member. The filter is detachably mounted to the support portion.

Abstract: In a control system for an agricultural combine having an adjustable platform, a sensor arm is coupled to a rotatable sensor shaft and adapted to engage and ride along the ground to monitor the operating height of the platform. The sensor arm has a continuously curved operation portion and provides a faster response time as ground contour changes are encountered. Moreover, the response increases for lower operating heights to reduce the possibility that the platform will contact the ground and to reduce the time to adjust the operating height to the desired setting. Thus, operating speed and productivity may be increased.

Abstract: A hydraulic drive apparatus for powering mechanical components of a pull-type implement, such as a crop harvesting unit, having an elongated extending hitching arm for pivotal attachment to a powered vehicle provided with a power take-off shaft. The drive apparatus includes a hydraulic pump for attachment to the hitching arm, a mechanical drive shaft for operation of the hydraulic pump upon attachment of the drive shaft to the power take-off shaft of the powered vehicle, and connections for hydraulic fluid lines for delivery and return of hydraulic fluid to and from a hydraulic motor for operation of the mechanical components of the pull-type crop harvester. The apparatus may include an articulation assembly to isolate the drive for the pump from movements between the hitching arm and the vehicle.

Abstract: There is provided a mower having a high pressure fluid pump powered by a mower engine and communicated to a fluid jet assembly. The pump receives associated fluid from a mower reservoir. An output fluid stream is discharged from a fluid jet under sufficient pressure to sever associated vegetation and impact upon a mower diffusing means.

Abstract: A vegetation cutter having a mulching blade system including a cutting blade and an independent vortex inducing blade. The cutting blade performs no vortex inducing function but rather only operates to cut vegetation. The vortex inducing blade is designed strictly to provide vortices at the outer ends thereof, and does not perform any cutting function. The vortices operate to even more effectively suspend vegetation trimmings within a volute cutting chamber of a deck of the vegetation cutter such that the trimmings can be cut several times by the cutting blade before being deposited back into the vegetation over which the cutter is traversing.

Abstract: A doffer assembly for doffing cotton from the saw drum of a cotton cleaner includes a plurality of brushes supported by channels and clamps in a drum configuration. A first nut on an easily accessible radial retaining bolt tightened against a special clamp secure the brush in place, and the same bolt and a second nut hold the corresponding doffer channel. The special clamp has a first leg positioned over a corner of the channel so the brush is held securely. A second brush-protecting leg extending up in front of the brush removes foreign matter that lodges on the saw drum. The channels are protected by the clamp, and the clamp is easily replaceable if damaged.

Abstract: Harvesting methods and apparatus provide endless movable arrays of finger members for contacting and strippingly lifting fruits from plants in growing fields with each of the arrays being generally upstanding, longitudinally elongated and having at least a portion which is substantially planar along which said finger members endlessly move upwardly while strippingly lifting said fruits from the plants as said apparatus travels through the growing field

Abstract: A V-rake includes a drawbar assembly adapted for connection to a tow vehicle, in combination with a transverse cross-member connected to the drawbar assembly. Wheels are mounted to the cross-member, to form a trolley for conveying the V-rake. A rake arm is mounted to each end of the cross-member, and includes a series of rake wheels. The rake arms are moveable relative to the cross-member between an open, operative position and a closed, transport position, and the rake wheels are moveable relative to the rake arms between a raised, inoperative position and a lowered, operative position. The transverse cross-member is a rigid, fixed-length member to increase the structural rigidity of the trolley. A windrow width adjusting arrangement is interconnected with the rake assembly, and includes a windrow forming rake assembly mounted to the transverse cross-member adjacent each end thereof.

Abstract: The present invention relates to gland packing materials made from expansive graphite, gland packing made from expansive graphite made from the materials, and a producing method of gland packing made from expansive graphite; braiding thread is a filamentose with winding or twisting a strip laminated sheet that a bundle of sprit fiber is laminated and unified through an adhesive layer so as to be a reinforcing material, and a cord body is constructed by braiding the braiding thread, then a packing is constructed by pressure forming this cord body.

Abstract: A hybrid rocket engine and a method for propelling a rocket utilizing a vortex flow field. The flow field includes an outer fluid vortex spiraling toward a closed end of the flow field generating apparatus and an inner fluid vortex substantially concentric with the outer vortex spiraling away from the closed end and toward an outlet opening in which the inner vortex spirals in the same direction as the outer vortex, but in the opposite axial direction. The invention also relates to a rocket propulsion system utilizing the flow field in which the propulsion system includes a combustion chamber with a fuel source and an oxidizer source that deliver the said fuel and said oxidizer to the said outer and inner vortexes in a manner to support a combustion process while flowing along the flow field.

Abstract: A turbojet engine having a fan (12) driven by a speed-reducing gear unit (23) whose input is driven by a turbine shaft (22). The speed-reducing gear unit (23) includes a planet gear (24) affixed to a turbine shaft (22), a ring gear (28) joined to a fan shaft (12) and a plurality of satellite gears (25) mounted on a stationary satellite support (27) and having helical teeth which operatively engage with helical teeth of the ring gear and the planet gear to balance axial loads along the turbine shaft and the fan shaft.

Abstract: A system and method for controlling a variable displacement engine include starting the engine with at least one bank of cylinders deactivated to increase load on at least one other bank of activated cylinders and reduce time required for an engine and/or vehicle component to reach a desired operating temperature. In one embodiment, ignition timing or spark is retarded and air/fuel ratio is biased lean for the activated cylinder bank during and shortly after starting to further reduce the time required for catalyst light off and closed loop operation. During activation of a deactivated bank of cylinders, air/fuel ratio of one or more activated cylinders is biased rich with air/fuel ratio of the deactivated cylinders biased lean. In addition, spark is retarded during activation of the deactivated cylinders to reduce the time necessary for components associated with the deactivated cylinders to reach desired operating temperatures.

Abstract: A method and system for generating auxiliary load during start-up and warm-up of a spark ignition engine operating with a high load, cold start and spark retard and enleanment (HL-CSSRE) methodology to achieve rapid light-off. The method and system of the present invention uses existing vehicle systems (20) to couple an auxiliary load to the engine for a predetermined period of time during engine start-up and warm-up.

Abstract: A NOx occluding member that occludes NOx when the air-fuel ratio is on the fuel-lean side is disposed in an engine exhaust passage. An NOx ammonia sensor is disposed in the engine exhaust passage downstream of the NOx occluding member. A surplus amount of a reducing agent that is not used to release NOx is determined from a change in the ammonia concentration detected by the NOx ammonia sensor when the air-fuel ratio is changed to the fuel-rich side so as to release the NOx from the NOx occluding member.

Abstract: An exhaust control system for a cylinder fuel injection engine having a cylinder injection injectors directly injecting a fuel into combustion chambers and a catalytic converter provided in an exhaust passage from said combustion chambers for purifying an exhaust gas, air/fuel ratio in the combustion chambers is periodically made rich for quicken activation of catalytic converter.

Abstract: A method is provided for the catalytic conversion of nitrogen oxides contained in the exhaust gas of an internal combustion engine. A reducing agent is added in a controlled manner upstream of a denitrification catalyst, as seen in exhaust gas flow direction, and in dependence on a nitrogen oxide concentration. The reducing agent is added in a superstoichiometric amount in relation to the nitrogen oxide content if an operating parameter and/or a value derived from the operating parameter falls below or exceeds a threshold value. The addition of the reducing agent is then terminated or continued in a substoichiometric manner. The invention provides a measure for obtaining an extremely high average nitrogen oxide conversion, especially under varying operating conditions of the internal combustion engine.

Abstract: An exhaust manifold provides improved output by suppressing exhaust interference between cylinders at the exhaust manifold. An air-fuel ratio sensor is installed in position where it can uniformly detect the exhaust gas of each cylinder. The exhaust manifold has a plurality of exhaust tubes, one per cylinder, that connect with a collector case. Each of exhaust tubes has a linear portion located directly above the section where it merges with the collector case. The exhaust tubes are connected to the collector case such that the center axes of the linear portions intersect at intersection point inside the collector case or downstream thereof. The air-fuel ratio sensor is arranged such that its detecting part is positioned in the vicinity of the intersection point. Depending upon whether the exhaust tubes of cylinders have firing orders that are successive or not determines whether the exhaust tubes are slanted or parallel with respect to each other.

Abstract: The present invention is directed to a combustor/turbine successive dual cooling arrangement in which the combustor has a one-piece hot combustor wall and front and rear cold combustor walls, and cooling air is forced under pressure through perforations in the cold combustor walls and impinges on the annular front and rear sections of the hot combustor wall for the backside cooling of the hot combustor wall. The exhaust combustor backside cooling air is directed to gain access to the hot end of the engine, that is, the turbine section, to cool the turbine components. The combustor/turbine successive dual cooling arrangement according to the present invention enables all the air typically used to cool the hot end of the engine downstream of the combustor, to be used as combustor backside cooling as well, to significantly reduce the amount of air needed for combustor and turbine cooling.

Abstract: Apparatus for premixing fuel and air to provide a fuel/air mixture includes a mixing tube configured for receiving fuel and air, a mixing tube axis, and a mixing tube exit for discharging a fuel/air mixture. The apparatus further includes a mixture valve associated with the mixing tube exit and including inner and outer valve members that define an exit flow area. The defined exit flow area includes at least two segmented, substantially opposed area portions with respect to angular position about the mixing tube axis for directing the mixture flow, and at least one of the inner and outer valve members is movable relative to the other of said valve members to selectively vary the defined exit flow area with respect to time. In a gas turbine gas generator or engine application, a separate controllable combustion air valve can be used with a fuel valve to provide controlled fuel/air ratios for the mixture.