Abstract: A screen assembly includes a frame having an outer perimeter and at least one inner support member, and at least one smooth surface affixed to the frame, where the smooth surface(s) have perforations. The frame may include a plurality of contact points extending upward from a top surface, and at least one smooth perforated screening surface is affixed to the plurality of contact points on the frame. In some cases, the smooth surface comprises a perforated region and an erosion resistant region. Also, the perforations may have a shape that includes one or more corners. The smooth surface may be a perforated metal foil, sheet metal, and the like. Perforations may be apertures having one or more opening area sizes across the span of the screen assembly.

Abstract: A vibratory screening machine includes replaceable screen assemblies. Compression mechanisms are used to secure replaceable screen assemblies to the vibratory screening machine. Each compression mechanism applies a force to a replaceable screen assembly that includes both a horizontal component and a downward vertical component. Each replaceable screen assembly is typically substantially flat prior to installation on a vibratory screening machine. The force applied to a screen assembly by one or more compression mechanisms causes the screen assembly to be pushed into engagement with underlying concave support members such that the screen assembly itself assumes a concave shape with the center of the screen assembly being lower than the side edges. The vertical downward component of the force helps to secure the screen assembly to the screening machine.

Abstract: A shaker screen comprising a panel defining a plurality of openings therein, the panel having an upper surface and a lower surface. A plurality of mesh screens is attached to the panel, and separately formed side rails are connected to the panel at first and second sides thereof. The side rails have a connecting hook at a first end thereof and a receiving slot at a second end thereof. The receiving slot is configured to receive the connecting hook at the first end of a side rail of an adjacent shaker screen and the receiving slot is covered by the panel.

Abstract: A method of installing a vibratory shaker screen in a vibratory shaker, including placing a first end of the vibratory shaker screen in a retainer, wherein the retainer is one of attached and a component of the vibratory shaker; pivoting a second end of the vibratory shaker screen toward a screen installation position on the vibratory shaker, deflecting a tab on one of the vibratory shaker screen and the vibratory shaker through contact of the vibratory shaker screen to another retainer of the vibratory shaker, and connecting the vibratory shaker screen to the vibratory shaker, where the tab fixedly connects the vibratory shaker screen to the vibratory shaker.

Abstract: A shaker screen assembly comprising a support frame and a screen subassembly attached to the support frame is provided. The screen subassembly includes a planar panel that includes a plurality of undulation sealing tabs, and a mesh section attached to the planar panel. The mesh section includes a series of undulations, each undulation including an elongated base portion and an elongated raised portion. The mesh section is attached to the planar panel such that the elongated raised portions form a series of elongated open areas having open ends and an undulation sealing tab of the planar panel is positioned in each of the open ends. The undulation sealing tabs help prevent fluid from leaking or flowing through the open ends when the shaker screen assembly is in use.

Abstract: A composite part forming system for shaping a composite material blank having a plurality of plies, the composite part forming system comprising opposing tools including shape-forming features, an actuator, and a composite tensioning system. The composite tensioning system is connectable to a periphery of the composite material blank to apply tension to the composite material blank the first and second tools are moved together to cause the composite material blank to conform to the shape-forming features. The composite tensioning system is configured to apply more tension to wrinkle prone plies of the composite material blank than to non-wrinkle prone plies as the composite material blank is caused to conform to the shape-forming features.

Abstract: A self-cleaning screen is formed via additive printing. The dimensions of the self-cleaning screen are modified. Supports are printed via additive printing. The supports are formed over a plurality of wires. Side seals may be additively printed along major sides of the plurality of wires. Wear of the screens is monitored.

Abstract: The present invention relates to apparatuses for distributing build powder in powder-layer three-dimensional printers (2) and for the collection of particulates of the build powder that have become suspended in the gaseous atmosphere in the vicinity of the build platform of the three-dimensional printer. These apparatuses include recoaters (20) that are particularly useful in providing uniform distribution of fine build powder across the width of the build platform or powder bed. The present invention also includes powder-layer three-dimensional printers (2) which comprise such apparatuses for distributing build powder and/or apparatuses for collecting such suspended particulates. The improved fine powder recoater (20) uses an ultrasonic transducer (30) to move powder through a sheet screen (28). The sheet screen (28) may be presented to the powder fed onto it in a narrow dispensing slot to limit the flow rate of powder from the dispenser and to provide control over the amount of powder dispensed.

Abstract: A screen panel for a vibratory machine is disclosed. The screen panel can include a reinforcing structure having a top surface. The reinforcing structure can define a plurality of apertures through the reinforcing structure. A polymer layer can have a bottom surface that is arranged over the top surface of the reinforcing structure. The polymer layer can define a plurality of apertures therethrough. Each aperture of the plurality of apertures of the polymer layer can be aligned with a single respective aperture of the plurality of apertures of the reinforcing structure.

Abstract: This disclosure discloses a shaker screen. The shaker screen comprises a frame and at least one screen layer supported by the frame for sieving materials. The frame comprises a rectangular outer support structure, at least one lateral inner support member, and at least one longitudinal inner support member. The lateral inner support member comprises an aperture, and the longitudinal inner support member comprises a groove on a side of the longitudinal inner support member. The lateral inner support member is engaged with the longitudinal inner support member by engaging the aperture on the lateral inner support member and the groove on the longitudinal inner support member.

Abstract: Embodiments of the present disclosure provide for systems, apparatuses, and methods of securing screen assemblies. Embodiments include a system having a compression assembly with a compression pin and a pin assembly having a pin. The compression assembly may be attached to a first wall member of a vibratory screening machine and the pin assembly may be attached to a second wall member of the vibratory screening machine opposite the first wall member such that the compression assembly is configured to assert a force against a first side portion of a screen assembly and drive a second side portion of the screen assembly against the pin of the pin assembly. The pin assembly may include a pin that is internally or externally mounted and that is adjustable and/or replaceable.

Abstract: A vibrating sieve machine for applying vibrations on powder to be classified that is placed on a mesh member through a sieve frame including a plurality of separable sieve frames for sieving and classification, wherein the mesh member includes a circular annular mesh member frame having an outer peripheral surface and configured to be sandwiched by the separable sieve frames with the outer peripheral surface exposed outward in a radial direction of the separable sieve frames, a reinforcement mesh stretching across the mesh member frame, a sieve mesh configured to cover the reinforcement mesh, hanging down over an outer peripheral surface of the mesh member frame, and a fastening band configured to be attached to the outer peripheral surface of the mesh member frame so as to sandwich the sieve mesh between the fastening band and the outer peripheral surface of the mesh member frame.

Abstract: This disclosure is drawn systems, devices, apparatus, and/or methods related to the separation of a mixture of solids according to size and the separation of solids from liquid. Specifically, this disclosure is drawn to an adjustable weight set for use on vibratory separators. In some examples, the adjustable weight set may include a base plate rotatable about an axis and extending radially outward from the axis; a plurality of slots extending through the base plate and being disposed between a radially outward periphery of the base plate and the axis; a plurality of weights coupled to each other about the base plate; and a weight locking tab that partially surrounds the base plate that may include one or more hooks extending through a portion of a slot.

Abstract: Systems and methods for a screen assembly configurable in a multi-screen configuration. The screen assembly in the multi-screen configuration includes a lower shaker screen and an upper shaker screen. A track is configured to be disposed on an inside wall of a vibratory separator and includes an upper retainer and a lower retainer. A screen clamping assembly is disposed in the track and includes a small spacer disposed between the lower shaker screen and the upper shaker screen in the track when the screen assembly is in the multi-screen configuration. An actuator is disposed in the track and has a clamped position where the actuator is actuated to provide a clamping force to clamp the lower shaker screen, the upper shaker screen, and the small spacer between the upper retainer and the lower retainer of the track.

Abstract: This disclosure is generally drawn to systems, devices, apparatuses, and/or methods, related to monitoring a shaker and monitoring a room in which shaker(s) operate. Specifically, the disclosed systems, devices, apparatuses, and/or methods relate to controlling an actuated arm to inspect, remove, replace, repair, clean the shaker and/or screen assemblies based on monitoring the shaker and its screen assemblies, and to adjust or maintain shaker(s) in a defined area such as the room in which shaker(s) operate. While the examples disclosed herein generally describe shakers for separating solids from fluids, the present disclosure contemplates that other separation equipment (e.g., machines for separating solids from other solids) may also be monitored and controlled by the systems and methods described herein.

Abstract: A method and/or a system filters particles using a screen with modular segments installed into a frame. The frame has a perimeter structure and an orthogonal array of support members. The segments have a segment perimeter frame, an orthogonal array of ribs and a mesh stretched across the segment. When the mesh of the segments is damaged, the damaged segment is removed from the frame and a replacement segment is installed.

Abstract: Embodiments of the present disclosure provide for systems, apparatuses, and methods of securing screen assemblies. Embodiments include a system having a compression assembly with a compression pin and a pin assembly having a pin. The compression assembly may be attached to a first wall member of a vibratory screening machine and the pin assembly may be attached to a second wall member of the vibratory screening machine opposite the first wall member such that the compression assembly is configured to assert a force against a first side portion of a screen assembly and drive a second side portion of the screen assembly against the pin of the pin assembly. The pin assembly may include a pin that is internally or externally mounted and that is adjustable and/or replaceable.

Abstract: An apparatus, a system and a method for reinforcing a screen has a screen rod assembly extending from a first end to a second end. The screen rod assembly encloses an interior. A spring-loaded plunger is located in the interior and adjusts the length of the screen rod assembly. A ball joint is on the screen rod and defines sections of the screen rod assembly that bend around the ball joint to reduce the length of the screen rod. A sleeve extends from a screen with segments separated by a fold line extending along a width of the screen. The sleeve receives the screen rod assembly to reinforce the screen. In an embodiment, a screen pinch assembly is defined where the sleeve engages a retention clasp of a screen tensioning system that receives the screen. The screen pinch assembly holds the screen in place.

Abstract: An elongate capping is arranged to support cross-tensioned or pre-tensioned screening media at a screen deck. The capping includes a pair of arms to grip a carrier beam of the screen deck and a head attached to the arms via a neck. The head includes flexible widthwise extending flanges that are configured to bend and compress towards the arms to support the screening media when mounted on the head under tension.

Abstract: The present invention relates to side tensioning assemblies for retaining screen media to the side plates of a vibrating-type screening machine. The side tensioning assembly includes a tensioning rail and at least one angle box mountable to a side plate. At least one bolt assembly provided for fastening the tensioning rail to the side plate and to angle box. Bolt assembly is provided with is a shoulder bolt that is secured to a terminal end of the bolt. The angle box includes an aperture sized to allow the bolt assembly passage therethrough, and a movable plate with a cutout. The cutout is sized larger than the bolt but smaller than a nut. The movable plate has a bolt-securing position and a bolt-releasing position to allow access to the aperture in the angle box such that the bolt assembly can be detached from the angle box without being disassembled.

Abstract: A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape.

Abstract: A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape.

Abstract: A steam turbine stationary blade is configured to be a stationary blade structure having a hollow structure. The steam turbine stationary blade is provided with a slit disposed on a stationary blade surface. The pressure of a stationary blade hollow is reduced to suction a liquid film through the slit for removing the liquid film formed on the stationary blade surface. An opening portion of the slit is covered with a sheet in a meshed pattern formed of a fine mesh thereby reducing an accompanied steam amount so as to effectively remove the liquid film.

Abstract: A woven wire screening for use in classifying material flowing therethrough and a method of forming the same. The woven wire screening includes a plurality of warp wires and a plurality of weft wires. The plurality of warp wires and the plurality of weft wires are interwoven to form an integral wire cloth having a plurality of openings for permitting material to be classified to flow through the openings. The integral wire cloth includes an upper screening surface configured to enhance the tumbling action of product impacting the upper screening surface to improve throughput of the woven wire screening.

Abstract: A separating screen has a rectangular body (1) one side of which has a seal for sealing against an abutting side of an adjacent screen or shaker basket. The seal is provided by an elongate sealing strip (9) of resilient material held in place on the side of the body by a retaining strip (5) which can be integrally molded with the body (1) or may be a separately formed component.

Abstract: A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape.

Abstract: A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape.

Abstract: A combination scooper and sifter and method for sifting material includes a solid frame; a mesh screen at the bottom of the frame; a rim at the top of the frame; a rear wall that extends down from the rim to the mesh screen at a steep, first angle; a lip at the front of the frame that extends down from the front of the frame to the mesh screen at a shallow, second angle which is substantially less than the first angle at the back of the frame; a front section at a front of the rim that slopes down to a front tip of the frame; a rear section at a rear of the rim that is generally flat; and a hump-like, middle section between the front and rear sections of the rim that smoothly rises and lowers to provide a hump.

Abstract: A shaker screen including a sealing element and a composite frame, wherein the sealing element is attached to a basal perimeter of the composite is disclosed. Furthermore, a method of forming a shaker screen including forming a sealing element, forming a composite frame, and attaching the sealing element to the composite frame, wherein the sealing element is disposed along at least one surface of a basal perimeter of the composite frame is disclosed. Also, a shaker screen attachment including a sealing element, a composite frame, and a wedge is disclosed. The shaker screen attachment further includes wherein the sealing element is attached to a basal perimeter of the composite frame, and wherein the wedge is disposed between the composite frame and a shaker basket such that the sealing element compresses against the shaker basket.

Abstract: A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape.

Abstract: A modular track and cam storage system for marine vessels comprising a track extrusion having a c-channel, and a cam latch assembly comprising a latch, a bolt, and a cam. The cam is substantially rectangular in shape having at least two rounded opposing corners. The cam of the cam latch assembly is configured to be horizontally received in the c-channel of the track extrusion and is configured to be rotated within the c-channel such that the cam is slideably engaged with said track extrusion. Manipulating the latch will cause the cam to rotate, in order or manually engage the cam latch assembly with the track extrusion. The cam is capable of being locked within said c-channel by flipping the latch downward about the bolt. The cam latch assembles are attached to a storage accessory such as a storage bag, a trash bag, a cup holder, a basin, a rod holder.

Abstract: A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape.

Abstract: A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape.

Abstract: A molded polyurethane vibratory screen including a body having opposite side edge portions, upper and lower edge portions, an upper surface and a lower surface, first members extending between the side edge portions and the second members extending between the lower edge portion and the upper edge portion, third members substantially parallel and extending transversely between the side edge portions and having multiple first members therebetween, the fourth members substantially parallel and extending transversely between the lower edge portion and the upper edge portion and having multiple second members therebetween, reinforcement members molded integrally with the third and fourth members.

Abstract: A clamp is described and which includes a base portion, a handle which is affixed to the base portion, a moveable clamp portion which is individually pivotally attached to the base portion; a pair of force transmitting couplings pivotally attached to the handle, and the movable clamp portion; and an elongated resilient biasing member with a distal end, and which is mounted on the movable clamp portion, and which is further operable to engage an adjacent object of interest and hold it in a given orientation relative to a vibratory conveyor.

Abstract: There is provided a plug (1) for repairing a sifting or filtering screen, the plug having at least one line of weakening (5) which can be ruptured whereby the plug has a plurality of possible plug sizes so that the plug is capable of plugging at least two different sizes of cell of the screen. Each possible plug size has a seal (2) extending around the complete periphery of the chosen plug size, in use the seal serving to engage and seal against the screen in order to plug a cell aligned with a damaged area of the screen.

Abstract: A screening having a plurality of warp elements. The plurality of warp elements includes first and second warp elements each having a plurality of undulations oriented in any desired manner including but not limited to horizontal or vertical. At least one retaining member is operably associated with the plurality of warp elements to form an integral screen segment having a plurality of openings. The first warp element has at least one characteristic different from the second warp element to prevent blinding of the screen segment. The at least one characteristic affecting movement of the first warp element and the second warp element when the screen segment is used to classify material such that at least one of amplitude and frequency of movement of the first warp screening element is different from that of the second warp element when subjected to the same operating condition.

Abstract: A screen has a plurality of flattened wires. The wires are arranged longitudinally in a first direction, and of those wires there are first and second flattened wires are spaced a predetermined distance from each other or contact or appear to contact each other at spaced intervals to form a polygonic spacing to form a desired screen spacing. The deviation from the desired screen spacing is equal to or less than the standard industry tolerance as established by ASTM E2016-11, table 8. A first and second polymeric support member homogenously encase, respectively, a first and second limited selected portions of the plurality of flattened wires spaced apart. There is no additional metal material in, within, or on the first or second polymeric support members, and the desired screen spacing is maintained even when the first and second polymeric support members are applied and cured.

Abstract: A screen retainer having adjustable tensioning includes a bushing and a tensioning device. The bushing has a center and a thickness that varies radially about the center. The tensioning device includes a surface adapted to receive the bushing, a spring, an engagement member, and at least one screen contact surface. The engagement member is coupled to the tensioning device and is adapted to engage the bushing. The engagement member can be eccentric with respect to the center of the bushing in an installed configuration. The at least one screen contact surface is adapted to engage and place a compressive force on the screen when the spring is placed in compression by an exertion of force by the engagement member on the bushing. The compressive force placed on the screen can be varied based at least in part on a rotation of the bushing on the surface.

Abstract: An apparatus includes a vibratory separator, a screen support coupled to an inner surface of the vibratory separator, a screen having a first side with a sloped edge and a second side, the second side having a sloped edge, a screen retainer coupled to the vibratory separator, a wedge retainer coupled to a sidewall of the vibratory separator opposite the screen retainer, and a wedge having a first surface configured to engage the wedge retainer and a second surface configured to engage the a sloped edge of the second side of the screen. A method includes disposing a screen on a screen support in a vibratory separator, engaging a first side of the screen with a screen retainer coupled to the vibratory separator, and applying at least one of a downward vertical force and a lateral force to a second side of the screen with a clamping apparatus.

Abstract: A wood pellet screen apparatus that is formed of a housing having a pair of legs. The housing includes a series of interconnected walls that form a collection chamber. An elongated screen is disposed in the housing over the collection chamber. The screen is constructed and arranged to receive wood pellets deposited thereon. The screen is further constructed and arranged to be tilted at an angle to the horizontal so that as wood pellets are deposited at a top of the screen the wood pellets progress along the screen under gravity control.

Abstract: Mechanical separators and screening machines, and methods for flexible sieve mat screening are disclosed. In an example configuration, a flip-flow type flexible mat screening apparatus is provided with optimized relative elevation positions for adjacent pairs of first and second mat supports. In one configuration, a portion of the first mat supports is arranged at a lowered or offset position relative to adjacent second mat supports.

Abstract: A screening apparatus includes beams and screen panels forming a broad screening surface. Each panel is mounted to a pair of beams along opposite side edges to bridge between two adjacent beams. The panels are mounted to an upwardly facing edge of the beams by elongate fixing members extending in the longitudinal direction of the beams. The fixing members engage opposite side edges of the panels and include a pair of projections that extend into openings provided in the edge of the beams. Each projection is engaged by a locking clip to prevent release from the openings. The openings into which the projections extend are of greater diameter than the outside diameter of the projections providing a loose fit within the openings, to allow movement of the fixing rails and the screen panels before the projections are engaged by a locking clip.

Abstract: The present disclosure is generally directed to vibratory separators that are used for processing drilling fluid, and in particular, vibratory separators that utilize electro-magnetic clamping apparatuses for attaching screen assemblies to a basket assembly. In one exemplary embodiment, an illustrative vibratory separator is disclosed which includes, among other things, a basket assembly having at least one screen support, and at least one screen assembly that is adapted to be releasably secured to the at least one screen support. Additionally, the disclosed vibratory separator also includes an electro-magnetic clamp apparatus that is adapted to releasably secure the at least one screen assembly to the at least one screen support when the electro-magnetic clamp apparatus is energized to a magnetized state, and to release the at least one screen assembly from the at least one screen support when the electro-magnetic clamp apparatus is de-energized to an un-magnetized state.

Abstract: A shaker screen for attachment to a bed of a shaker includes a screen frame having at least one mesh screen attached to the top side of the screen frame, wherein the screen frame is preferentially bowed prior to attaching the mesh screen to the screen frame.

Abstract: A frame over which woven wire mesh is to be stretched and secured to form a sieving screen and which can be used to screen solids from drilling mud recovered from down-hole when drilling for oil or gas. The frame is a rectilinear moulded plastics frame having edge regions by which it is secured in place in a shaker. Within the frame is a plurality of rectilinear windows formed by an orthogonal array of intersecting ribs also of moulded plastics material. Some of the ribs are internally reinforced by rigid metal members which extend orthogonally between hollow box-section members which define a sub-frame for reinforcing the four edge regions of the frame. The orthogonal members are secured at their ends to the sub-frame. The ends of the sub-frame members are joined at the four corners of the sub-frame. In this way not are only the edge regions of the frame reinforced internally but so also are some of the orthogonally intersecting ribs, so as thereby to produce a rigid frame for the screen.

Abstract: A shaker apparatus including a basket having an upstream side, a downstream side, and two side walls, at least one wedge guide and one support rail disposed on each side wall, and at least one screen assembly. The support rails and the wedge guides may be configured to engage the screen assembly. The screen assembly may have one or more layers of screen mesh mounted on a screen frame. The screen frame may include a first and a second side rail, each having an upstream end, a downstream end, a top surface, and a bottom surface. A slope of the top surfaces intermediate the upstream end and the downstream end may be different than a slope of the bottom surfaces intermediate the upstream end and the downstream end.

Abstract: A shaker screen including a composite frame, a removable grid attached to the composite frame, and at least one filtering element attached to the removable grid is disclosed. A method including forming a composite frame, forming a removable grid, attaching at least one filtering element to the removable grid, and attaching the removable grid to the composite frame is disclosed. Additionally, a method for rebuilding a shaker screen, the method including removing a first screen assembly from a composite frame, the screen assembly having a removable grid and at least one filtering element, and attaching a second screen assembly to the composite frame is disclosed.

Abstract: A filter screen to be used in conjunction with a shale shaker in removing solid matter from drilling fluids includes a filter plate having a plurality of perforations, a plurality of hold-down apertures, and a pair of end caps attached to the filter plate, wherein each end cap is configured to isolate the hold down apertures from the plurality of perforations.

Abstract: A screen panel center retainer system for a vibrating separatory machine utilizes a center retainer that is provided with a retainer base which is adapted to be secured to screen stringer rails of a vibrating separatory machine. A pair of retainer channel legs form an upper portion of the center retainer and have screen panel edge receiving slots. A locking strip, having a wedging tongue, is used in conjunction with the center retainer. The wedging tongue is insertable into the channel on the center retainer which is defined by the two retainer channel legs. Flow control dams and cross dam retainers are used in conjunction with, and in addition to the center retainers and locking strips. The cross dam retainers are provided with locking strip end receiving pockets, to compensate for changes in the length of the locking strips. The screen panel center retainer system is configured to provide a functional, universal installation of screen panels on vibrating separating machines.