The invention relates to a screen, which has a screen panel support and screening modules arranged in the screen panel support. The screening modules are fastened to the screen panel support by means of at least one device. The device comprises a first element attachable to the screen panel support and adapted to receive a opening of the screening module or an opening created by adjacent screening modules, the first element having an outer threading, and a second element having an inner threading for engagement with the outer threading of the first element, such that the screening module is attached to the screen panel support upon interconnection between the first element and the second element. The screen is characterized in that an outer periphery of the second element comprises at least one groove for engagement with a handling tool. The invention also relates to a method for fastening a screening module to a screen panel support.

An apparatus includes a vibratory separator having a frame and a screen, a lift housing disposed proximate the vibratory separator, and a lift system disposed in the lift housing and configured to selectively engage a portion of the vibratory separator to lift the portion of the vibratory separator. A method includes actuating an actuator and vertically extending a lifting member, contacting an alignment device coupled to the lifting member with a corresponding alignment device coupled to a portion of a vibratory separator, and raising the portion of the vibratory separator to provide access to a screen of the vibratory separator.

A flip-flow screener machine includes a carrier frame with primary, drive-induced vibration, to which a vibrating frame is coupled in a freely oscillating manner by means of elastic transmission elements and is excited and set to vibrate secondarily by the carrier frame via said transmission elements, transverse carriers being arranged on the carrier frame and on the vibrating frame, a transverse carrier on the vibrating frame lying downstream of a transverse carrier on said carrier frame, with a flexible screen bottom being arranged between two transverse carriers and detachably secured to said transverse carriers, each of the screen bottoms including at least one undercut portion by means of which they can engage behind an undercut on the transverse carrier, and two adjacent screen bottoms abutting one another directly at their front ends.

Vibratory separator screens separate solids and/or fluids, methods form said screens and vibratory screen apparatuses utilize said screens. The vibratory separator screens, methods and apparatuses have a mesh portion having a first side of the mesh portion and an opposite second side of the mesh portion, a first hem crimp affixed to the first side of the mesh portion, and a second hem crimp affixed to the second side of the mesh portion.

A vibratory screening apparatus including a support and at least two screen decks arranged one over the other as an assembly. Each screen deck includes a screen frame, a screen and a chamber underlaying the screen surface, an outlet duct for oversized material and an outlet duct for undersized material in communication with the chamber. Mountings are configured for mounting the assembly of the screen decks to the support. A drive support with a motor assembly is configured for vibrating the assembly of screen decks. A feed unit is configured to feed the material to be screened to each screen deck. The feed unit is arranged on the support and configured to be moved between a feed position and a maintenance position. The assembly of the at least two screen decks is resiliently arranged on the support, while the feed unit is non-resiliently arranged on the support.

A screen system for improving a vibrating shaker apparatus for separating drilling fluid and drill cuttings is described. The screen system comprises a dual screen having a coarse mesh upper screen attached to a finer mesh lower screen with a channel between the two screens. One or both of the screens may be wedge shaped to affect the flow rate of drilling fluid and drill cuttings across the screen. The screen systems can be installed in existing shaker apparatuses using various attachment systems, such as wedge clamping systems, hydraulic or air pressure clamping systems, or hook screen systems.

A magnetically retained screen assembly for a conveyor for processing goods is disclosed. The magnetically retained screen assembly includes one or more magnetic screens and one or more magnet assemblies, wherein the one or more magnet assemblies are configured to magnetically retain the one or more magnetic screens within the conveyor support structure.

A system for mounting a wire screen panel to a frame for screening particulate materials. The frame has a stringer with a ferrule defined therein. The system comprises a screen panel having a first plurality of wires and a second plurality of wires disposed. The screen panel has a first side and a second side disposed opposite from the first side. The screen panel has a first end and a second end disposed opposite from the first end. A plate is disposed along at least a portion of the length of the first side of the screen panel. A fastener having a shaft and a head portion is configured and arranged to extend adjacent to the plate and to engage with a bushing disposed in the ferrule in the stringer. The head portion of the fastener engages with the plate on the side of the plate opposite the stringer such that the screen panel is fixed in position relative to the frame.

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.

An apparatus for processing cannabis plants includes a support-frame, a hopper, a filter-tray, an oscillation means, a weighing station and a power supply. The apparatus for processing cannabis plants is useful for processing, weighing and packaging cannabis after the cannabis has flowered and is harvested.