Abstract: The envelope printer is adapted for use with envelopes. The envelope printer is a printer that is customized for printing envelopes. The envelope printer comprises a feed tray, an output tray and a printer. The feed tray and the output tray are attached to the printer. The feed tray is a first bin that is designed specifically to hold envelopes. The printer will draw blank envelopes from the feed tray for printing. The output tray is a second bin that is designed specifically to receive envelopes from the printer. The printer is a specially designed printer that is optimized for processing and directly printing on envelopes.

Abstract: A cleaning device for cleaning substrates is provided. The device comprises a cleaning brush having an outer cleaning surface surrounding a hollow bore and positioned around a first central axis al defining a first rotational direction ?; and a plurality of cantilevered nodules formed on the outer cleaning surface, each nodule having a mounting portion connected with the outer cleaning surface, a cleaning portion connected with the mounting portion, and a contact member for engaging the substrate. The cleaning portion extends in a first direction D1 from the mounting portion to the contact member, wherein a radial direction Dr is defined as extending radially from the central axis a1 towards the outer cleaning surface and normal to the rotational direction ?, and wherein the first direction D1 intersects with the radial direction Dr at an angle ?. Angle ? is greater than 0° and less than 180°.

Abstract: A separation conveyor (10) for separating a mass or slurry of different sized particles is provided. The separation conveyor includes a filter belt (12) including a feed side for receiving the mass or slurry and a filtrate side. The separation conveyor further includes a conveyor assembly (16) for conveying the filter belt, an overhead spray array (28) for spraying fluid downwards onto the slurry as it travels on the filter belt, and a lower spray array (30) for spraying fluid upwards against an underside of the belt. The upper and lower spray arrays are arranged in combination to assist in promoting separation of oversized particles on the feed side of the belt and undersized particles on the filtrate side of the belt.

Abstract: The present disclosure involves a system and methods for eliminating rinse and dewatering rescreens while cooling coarse aggregates, including in one embodiment a perforated wet belt conveyance system. According to another embodiment disclosed herein, a system and method for cooling cement is also provided.

Abstract: A device for the separation of waste materials in accordance with their densities is provided and includes a vat which is fillable with a fluid for the separation of detritus by means of floatation and decantation. Conveyer belts are provided for the removal of the supernatant and decanted materials. A vibrating sieve is provided for the pre-separation of debris prior to introduction into the vat. The vibrating sieve extracts large materials and small materials which tend to produce silt in the vat. Means are provided for the removal of the decanted sludge.

Abstract: An apparatus and method of separating small rubbish and organic matters from garbage for collection by means of water by considering specific weight, buoyancy, and flow rate of water is disclosed. The apparatus comprises a plurality of conveyor screens incorporating injection nozzles, a less inclined channel, a conveyor, and an organic matter screen for effectively separating floated rubbish, organic matters, and sunk rubbish from garbage for collection.

Abstract: An arrangement for removing chips from a machining coolant prior to filtering out the finer solids in a main filter. A coarse weave belt is frictionally driven along a strainer bottom wall of an auxiliary tank suspended above the main filter tank, the permanent media belt of a coarse weave which allows the liquid and suspended finer solids to pass through while capturing the chips. A powered drag conveyor frictionally engages and drives the permanent media belt through the auxiliary tank, each diverging when returning across the top and bottom respectively of the auxiliary tank prior to being recirculated through the auxiliary tank.

Abstract: An arrangement for removing chips from a machining coolant prior to filtering out the finer solids in a main filter. A coarse weave belt is frictionally driven along a strainer bottom wall of an auxiliary tank suspended above the main filter tank, the permanent media belt of a coarse weave which allows the liquid and suspended finer solids to pass through while capturing the chips. A powered drag conveyor frictionally engages and drives the permanent media belt through the auxiliary tank, each diverging when returning across the top and bottom respectively of the auxiliary tank prior to being recirculated through the auxiliary tank.

Abstract: Methods and apparatus are provided for harvesting aquaculture from a body of water. The apparatus includes a continuous belt which is partially submerged in the water. A flow of water is created which forces aquaculture against the moving belt and the belt then lifts the aquaculture into the vessel. The aquaculture is then deposited on a moving belt which initially filters out a selected species from the aquaculture and deposits the selected species in a settling compartment. The selected species is then pumped from the settling compartment to a second compartment. The selected species may then be passed through another filtering system comprised of a tube with a formed wire spirally wound thereabout. The spacing between the wound wire may be varied so that only the selected species having a specific size may pass therethrough.

Abstract: A separator includes a continuous inclined screening belt that passes over an upper roller and a lower roller to screen debris from municipal wastewater. The debris is then conveyed to a debris discharge outlet. A puddle of debris-laden wastewater forms a hydrostatic pressure head on the upper surface of the screening belt to assist in forcing the wastewater through the screening belt. Wastewater that passes through apertures in the screening belt is deflected by a deflector plate that shields the return path of the screening belt. The screened wastewater is then directed to the wastewater outlet. In a preferred embodiment, a belt-cleaning brush is disposed along the return path and brushes clinging debris from the screening belt toward the debris discharge outlet. Additionally, the screening belt rides on and is supported by a perforated backing plate as it travels from the lower roller to the upper roller.

Abstract: A separator 10 is disclosed and claimed. The separator includes a continuous separating assembly 20 following a trajectory having a top run A and a return run B. The assembly includes a train of articulated pan assemblies 22.1 to 22.n. Each pan assembly includes first and second back-to-back pans 22.11 and 22.12 separated by a discrete mesh segment 60.1. In use, the separator is charged with a mixture including a liquid, a first solid particulate component and a second solid particulate component of which the particles are bigger than the first particulate component, both at the start 26 of the top run and at the start 28 of the return run. The first particulate component is received in sumps 30,32 and 34,36 and the second particulate component is collected in collection regions 42 and 46.

Abstract: A flow divider box disposed beneath a continuous-loop scalper screen mud separation unit that is driven in a continuous loop conveying and discharging large amounts of drill solids at the end of the separation units end overboard or into a reserve pit. The flow divider box has a box-like housing with an array of openings to redistribute or separate the fluid flow stream, drilling fluid, or drilling mud, in the flow path of the separation unit and selectively supply drilling fluid or drilling mud to a sundry of shale shakers in the process of separating the sediments obtained from a well bore. The flow divider box has a series of collection divider boxes disposed below the separator unit that separate and redistribute drilling fluid or drilling mud, upstream of the conventional solids control equipment of the mud system of a drilling rig. The individual collector boxes are rectangular, baffled, and have adjustable gates parallel to the flow divider box, capable of 2′ head capacity.

Abstract: A continuous-belt drilling mud separation unit is removably mounted in a box-like housing disposed in the flow path of drilling mud or drilling fluids and is operated by a motor on the housing. The separation unit includes a generally rectangular frame, a tensioning system, and a wide continuous belt in the form of a mesh screen, chain, self-cleaning chain link belt, or combination chain link belt and wire mesh screen which extends around rollers or sprockets and is driven in a continuous loop moving along the longitudinal axis of the frame. As drilling mud or drilling fluids are conducted onto the moving belt, liquids and particles smaller than the openings in the belt pass through the openings and liquids and particles larger than the openings are transported on the moving belt and are discharged off of one end as the belt completes its path.

Abstract: Disclosed is a separator that extracts solids from a manure slurry. The separator includes a powered rotating drive cylinder, a plurality of fins radially extending from the drive cylinder, and a flexible conveyor belt driven by the drive cylinder. The conveyor belt has a plurality of grooves positioned so that at least one of the fins contacts a substantial portion of one of the grooves as the drive cylinder drives the flexible conveyor belt.

Abstract: A pair of cylindrical composite rollers formed of a metallic drum having a thick outer elastomeric layer are mounted transversely in a rectangular frame of a drilling mud separation unit over which a wide endless-loop chain-link belt is driven in a continuous loop moving along the longitudinal axis of the frame. The drive roller has a plurality of axially spaced circumferential rows of radially extending teeth that are machined in the surface of the elastomeric material. The endless belt is formed of a plurality of laterally adjacent jointed links hinged together by transverse rods. As drilling mud or drilling fluids are conducted onto the moving belt, liquids and particles smaller than the openings in the belt pass through the openings and liquids and particles larger than the openings are transported on the moving belt and are discharged off of one end as the belt completes its path.

Abstract: A bypass diverter box disposed upstream from conventional solids control equipment of a mud system of a drilling rig contains a drilling mud separation unit having a continuous-loop scalper screen that is driven in a continuous loop to separate, convey and discharge large amounts of gumbo, heavy clays and drill solids at the end of the separation unit. The flow divider box is a box-like housing with a verter plate, upper and lower baffle plates and a grate that allows drilling fluid or drilling mud to be selectively directed to the mud separation unit to be separated prior to passing to the conventional downstream solids control equipment or allows the fluid to bypass the separation unit and flow directly to the conventional solids control equipment.

Abstract: A gumbo separator has a continuous, inclined, moving screen belt which rides on and is supported by a perforated backing plate. The desirable portion of drilling fluids fed to the gumbo separator passes through the screen belt and backing plate and may be further processed to remove drill cuttings. The gumbo, containing gummy hydrated clays, are conveyed off the screen belt to the reserve pit. The gumbo separator provides a self cleaning screen belt, using a counter-rotating belt cleaning brush. A spray bar back-washes the screen belt with high pressure drilling mud to remove any gumbo lodged in the screen belt openings.

Abstract: A continuous-belt drilling mud separation unit is removably mounted in a box-like housing disposed in the flow path of drilling mud or drilling fluids and is operated by a motor on the housing. The separation unit includes a generally rectangular frame, a tensioning system, and a wide continuous belt in the form of a mesh screen, chain, self-cleaning chain link belt, or combination chain link belt and wire mesh screen which extends around rollers or sprockets and is driven in a continuous loop moving along the longitudinal axis of the frame. As drilling mud or drilling fluids are conducted onto the moving belt, liquids and particles smaller than the openings in the belt pass through the openings and liquids and particles larger than the openings are transported on the moving belt and are discharged off of one end as the belt completes its path.

Abstract: A system for evaluating barcoded mail which includes an imaging device to provide an image signal corresponding to an image of a barcode or an address of a mail piece. The system also includes an output device for providing evaluation results and a processor receiving the image signal from the imaging device. The processor generates an address information signal corresponding to the barcode and an address block image signal corresponding to the address. The processor provides an output signal to the output device in accordance with the address information signal and the address block image signal. The output device responds to the output signal to provide an address information image corresponding to the address information signal and an address block image corresponding to the address block image signal for visual comparison. The system also evaluates an image of a mail piece barcode to detect and categorize barcode defects for reporting with a visual facsimile of the barcode.

Abstract: Method and apparatus are provided for separating coarse and ultrafine solids from a liquid stream to produce a substantially dry solids discharge and a clarified liquid. Apparatus is provided comprising a combination of a settling tank, a plurality of filter screens spaced along an endless link-chain conveyor, a screen vibrator and directed air streams. In operation, coarse solids settle preferentially to the tank bottom. Ultrafines solids remain in suspension. Relatively coarse filter screens are conveyed from a point outside the tank to traverse a prolonged path through the liquid. Ultrafine solids are captured on the screens, by filtering the liquid through an ever finer build-up of filter cake. The relatively large number of passes of the screens through the liquid provides effective filtering of suspended solids. Further, the screens dredge settled solids from the tank bottom.

Abstract: A self-cleaning vacuum head is disclosed which has the ability to discriminate between particles of different size, or the ability to separate fluids from particulate matter. The invention has two relatively moving surfaces which provide a changing locus of vacuum so that particles drawn against the surfaces are later separated therefrom. Each of the two surfaces has slots which are transverse to one another. The surfaces are moved relative to one another in a moving direction which is transverse to the orientation of the slots on the first of the moving surface, and also transverse to the slots on the second surface. The transverse arrangement of the slots, and the relative movement of the slots in a direction which is transverse to each of the slots causes particles drawn against the surface to roll about two substantially perpendicular axes to encourage thorough decontamination of the particles. An oil spill clean-up system is also disclosed utilizing the self-cleaning vacuum head.

Abstract: A self-cleaning vacuum head is disclosed which has the ability to discriminate between particles of different size, or the ability to separate fluids from particulate matter. The invention has two relatively moving surfaces which provide a changing locus of vacuum so that particles drawn against the surfaces are later separated therefrom. An oil spill clean-up system is also disclosed utilizing the self-cleaning vacuum head.

Abstract: An apparatus is disclosed for removing ash from repulped wastepaper which contains ash together with cellulosic fibers. The apparatus includes a frame and a plurality of rolls which are rotatably secured to the frame, such that the axes of rotation of the rolls are spaced and parallel to each other. The plurality of rolls include an upstream roll and a downstream roll having a cylindrical outer surface. A porous belt is supported by and extends around the plurality of rolls to define an endless loop. The belt moves between the upstream and downstream rolls for defining a screening portion. A headbox is disposed within the endless loop, and adjacent to the screening portion for ejecting the repulped wastepaper through the screening portion. A drainage device is disposed on the opposite side of the screening portion relative to the headbox for receiving ash passing through the screening portion.

Abstract: A method for sorbing metal values from a slurry containing the same is disclosed. The slurry is advanced through a plurality of vessels arranged in series while countercurrently directing a sorbent through the vessels. Metal values are sorbed from the slurry in each of the vessels by mixing the pulp to achieve homogeneity with the pulp being maintained at a predetermined level in the vessel. A portion of the homogeneous pulp is directed into an interstage screening system disposed within the vessel and at least partially submerged beneath the predetermined pulp level, whereby the sorbent is separated from the slurry. The separated sorbent is primarily returned to the vessel while a portion of the sorbent is removed from the interstage screening system.

Abstract: A side seal assembly adapted for use in a belt-type filtering device. The assembly comprises a hollow elongated holder having at least one open end and a longitudinal slot extending the length thereof. The assembly further includes a rod received within the holder, the rod being of a length approximately equal to the length of the holder and of cross-sectional dimensions greater than the slot of the holder, and a flexible curtain secured to the rod along its length and extending outwardly through the slot in the holder.

Abstract: A sorption vessel including a tank for retaining a pulp of an aqueous slurry and a sorbent at a predetermined liquid pulp level therein; and an interstage screening system disposed within the tank and at least partially submerged beneath the predetermined pulp level. The interstage screening system includes a housing for isolating the system from the pulp, thereby providing a hydraulic differential between the predetermined pulp level and the screening system; a conduit for selectively introducing the pulp onto the screen member, the pulp being urged through the conduit by the hydraulic differential; and at least one screen member disposed within the housing for selectively and continuously separating the sorbent from the pulp.

Abstract: The separation of a first solid component from a mixture thereof with a liquid and a second solid component which is of smaller average particle size than the first solid component, the first and second solid components being in suspension in the liquid and with the percentage by mass of the second solid component being substantially greater than that of the first solid component, by means of a travelling endless cloth. The cloth passes through an operative separating region in a horizontal manner. The mixture is fed onto substantially the entire operative separating region from a feed box that has a floor with apertures therein; the floor being located above the cloth. The liquid and second solid component pass through the cloth, to be collected by a trough. The first solid component remains on the cloth and is subsequently removed and collected.

Abstract: Disclosed is a plow assembly adapted for use with an endless conveyor type filtering device. The assembly comprises an elongated support member and at least one plow depending therefrom. The plow comprises a shaft affixed to the support member, a plow body having a central bore through which the shaft partially extends, the body being capable of rotary movement on the shaft, and a stop retaining the plow body on the shaft.

Abstract: Disclosed is a filtering device comprising an endless perforate conveyor belt adapted to carry a liquid-containing material and extract liquid from the material through the belt, and a plow assembly for disrupting the material carried by the belt. The plow assembly comprises a generally horizontally positioned cross-member extending across the width of the belt, the cross-member supporting at least one plow such that the plow is capable of contacting the material carried by the belt, the cross-member is mounted adjacent its ends on slide means that enable the cross-member to be raised and lowered with respect to the perforate belt. The device further includes selectively actuatable member for raising and lowering the cross-member with respect to the belt to thereby move the plows into and out of material contacting position.

Abstract: A mixture containing oleophilic surfaced mineral particles and oleophobic gangue particles in an aqueous phase is separated by means of an apertured oleophilic endless sieve supported in a separation zone by a revolving cylindrical cage having apertured sidewalls and supported in a recovery zone by a support roller, each section of sieve surface alternately revolves through the separation zone and recovery zone. The aqueous mixture is introduced as a slurry into the rotating cage. The endless sieve partly covers the outside surface of the cylindrical cage sidewall. An oleophilic adhesive is placed on the sieve as a coating or added to the aqueous slurry in the cage or both. The mixture tumbles inside of the cage and passes through the cage sidewall apertures to the sieve surface. The oleophilic mineral particles of the mixture adhere to the oleophilic adhesive and are captured by the sieve upon contact and conveyed out of the separation zone into the recovery zone.

Abstract: A segmented endless belt vibrating screen for removing solid particles from a stream of drilling fluid circulated therethrough. The endless belt is mounted on a resiliently mounted vibratory carriage. Rollers driven by a motor carry the belt. The screen is connected to the belt by a plurality of spaced hooks along the screen. A wiper and a washpipe are supplied for removing particulate from the screen.

Abstract: An improved system for dewatering dilute slurries is disclosed. The system includes a spring-loaded sludge feed tray incorporating an adjustable flow splitter plug, along with spring-loaded sludge side guides. The sludge-cake compression section provides for a compression roller which is adjustable between two positions as a component in the backflushing of the sludge carrier screen using cake effluent. Also, a particular screen sludge solids loading range is employed which results in a significant improvement in performance and capacity of the dewatering system.