A drilling fluid shaker screen system includes a screen assembly that includes a screen including a plurality of screen sections. A first screen section includes a first screen mesh size and a second screen section includes a second screen mesh size different than the first screen mesh size. The drilling fluid shaker screen system further includes a rotation assembly mounted to the screen assembly. The rotation assembly includes one or more rollers moveable to rotate the screen assembly about an axis of rotation. The drilling fluid shaker screen system further includes a motor assembly coupled to the screen assembly and configured to vibrate the screen assembly. A housing includes a cuttings outlet that is fluidly coupled to a cuttings inlet formed in the screen and a liquid outlet separate from the cuttings outlet that is fluidly coupled to the plurality of screen sections.

Provided is an inexpensive mesh filter with high productivity. This mesh filter, which is an integrally molded product of resin, includes: a mesh part in which a plurality of ribs are disposed in a lattice shape; a rim part which is formed in an annular shape so as to surround the mesh part, and to which the plurality of ribs are connected; and a final filling part which is disposed on the inner side of the rim part, and to which some of the plurality of ribs are connected. The cross-sectional area of at least one rib among the ribs connected to the final filling part is smaller than the cross-sectional area of at least one rib among the ribs not connected to the final filling part.

Provided is an inexpensive mesh filter with high productivity. This mesh filter, which is an integrally molded product of resin, includes: a mesh part in which a plurality of ribs are disposed in a lattice shape; a rim part which is formed in an annular shape so as to surround the mesh part, and to which the plurality of ribs are connected; and a final filling part which is disposed on the inner side of the rim part, and to which some of the plurality of ribs are connected. The cross-sectional area of at least one rib among the ribs connected to the final filling part is smaller than the cross-sectional area of at least one rib among the ribs not connected to the final filling part.

Provided is a washing device that washes a filter of an extraction device with a fluid, the extraction device including an extraction tank for storing an extraction material, a lid body supported openably and closably at a lower portion of the extraction tank, and the filter which is provided on the lid body, and on which the extraction material is placed, the washing device including, a tube body which is disposed at a fixed position with respect to the extraction tank, and through which the fluid passes, and an ejection port provided on the tube body and injecting the fluid toward the filter when the lid body is in an open state.

A disposable dental waste filter device has a body having a tube receiving end having an outlet and a cap receiving end, a cap portion having an inlet and an end for insertion into the cap receiving end, a valve insert assembly for insertion into the body and the cap portion, and a filter assembly positioned within the body.

A disposable dental waste filter device has a body having a tube receiving end having an outlet and a cap receiving end, a cap portion having an inlet and an end for insertion into the cap receiving end, a valve insert assembly for insertion into the body and the cap portion, and a filter assembly positioned within the body.

A disposable dental waste filter device has a body having a receiving end, and a separable cap having a tip end, the body for receiving and capturing therein amalgam that enters into the body through the tip end and the separable cap. A disposable dental waste filter device also has a body having a receiving end, a central lumen for receiving and capturing amalgam, a filter, and a circular leg portion having an exterior channel, and a separable cap having a tip end, a circular outer rim having a circular end ridge portion with the ridge portion adapted to be inserted into the exterior channel of the body for a snap fit engagement between the cap and the body, the body for receiving and capturing therein amalgam that enters into the body through the tip end and the separable cap.

A disposable dental waste filter device has a body having a receiving end, and a separable cap having a tip end, the body for receiving and capturing therein amalgam that enters into the body through the tip end and the separable cap. A disposable dental waste filter device also has a body having a receiving end, a central lumen for receiving and capturing amalgam, a filter, and a circular leg portion having an exterior channel, and a separable cap having a tip end, a circular outer rim having a circular end ridge portion with the ridge portion adapted to be inserted into the exterior channel of the body for a snap fit engagement between the cap and the body, the body for receiving and capturing therein amalgam that enters into the body through the tip end and the separable cap.

A micro-nozzle with an integrated filter structure for receiving fluids at pressures between 0.1 MPa to 50 MPa, comprising: at least one fluid inlet, a fluid outlet comprising at least one orifice, a primary filter structure positioned downstream from the at least one fluid inlet and arranged to provide statistical filtration of fluid passing therethrough.

A filtration device includes a container, a channel member, and a filter. The container has a space of variable volume that contains a liquid, the liquid including a target substance to be separated by filtration. The channel member includes a channel and an opening that are defined therein, the opening being provided at a position along the channel in a direction transverse to the direction in which the channel extends. The channel member has an attachment part to which the container is attached and which provides communication between the space in the container and the channel. The filter is attached inside the channel member and positioned at the opening.