A detonator positioning device for use with a wireless detonator in a perforating gun assembly includes a single mechanism for physical electrical connection, while the remaining electrical connections are made via electrically contactable components.

A detonator positioning device for use with a detonator in a perforating gun assembly is described. The detonator positioning device is configured for electrically contactably forming an electrical connection within the perforating gun housing by contact. The detonator positioning device includes a body having a first end, a second end, and a central bore extending between the first and second ends. The central bore is adapted for receiving one or more electrically contactable components of a detonator. The detonator positioning device aligns at least one of the one or more electrically contactable components to form an electrical connection with a bulkhead assembly.

A molecular filtration device and method of use capable of filtering and purifying molecules of a particular characteristic, wherein the amount of molecule to be filtered may be in the nanogram range and may be dispersed in a relatively large volume of solution. The resultant elution may include a relatively high concentration of desired molecule, due to a relatively small volume.

The invention relates to processes for the production of capillary dialyzers. The processes involve thermoforming of bundles of hollow fiber membranes. The disclosure also relates to an apparatus for thermoforming bundles of hollow fiber membranes.

A high velocity cross flow dynamic membrane filtration system disc membrane assembly includes a frame having first and second end members and a plurality of rails extending between the first and second end members. At least two parallel support shafts are coupled to the frame, each support shaft defining a longitudinal axis about which is positioned a plurality of axially spaced membrane discs. The plurality of membrane discs associated with one of the at least two parallel support shafts is interspersed between the plurality of membrane discs associated with another of the at least two parallel support shafts. Each rail of the plurality of rails is configured to be received by a mounting rail within a vessel defining a treatment chamber. A permeate tube is coupled to each support shaft and in fluid communication with the membrane discs associated with that support shaft.

A pair of pliers for separating osmosis membranes. The pliers include a first arm and a second arm each having a handle end opposite a front end. A first plate includes a top surface, a bottom surface and an edge having a front, a rear and sides. The rear of the first plate is coupled to the front end of the first arm and the front of the first plate includes a taper formed on the top surface. A second plate includes a top surface, a bottom surface and an edge having a front, a rear and sides. The rear of the second plate is coupled to the front end of the second arm and the front of the second plate includes a taper formed on the bottom surface. A pivot pin pivotally secures the first arm to the second arm in between the front ends and the handle ends.

Provided are a plate-type filter module for water treatment and a filter assembly for water treatment comprising the same. The plate-type filter module for water treatment according to one embodiment of the present invention comprises: a plurality of filter units having a predetermined area and formed in a plate shape; a block frame to which the plurality of filter units is engaged so that the filter units are kept parallel to each other; and a collecting/receiving tube fixed on one side of the block frame and including a plurality of first fittings respectively connected to the plurality of the filter units to allow filtered water produced in the filter units to be introduced thereinto and at least one second fitting for discharging the filtered water introduced through the plurality of first fittings to the outside.

A lifting set includes a lifting apparatus and a water treatment device. In lifting the water treatment device, an engaging member attached to a first attaching position of a frame of the lifting apparatus pivots in a first direction by sliding along a corresponding engageable portion of the water treatment device as the lifting apparatus approaches the water treatment device, and then automatically engages with the engageable portion by pivoting back to a vertical position by weight thereof while the lifting apparatus is further lowered. In installing the water treatment device, the engaging member attached to a second attaching position engages with the engageable portion at a pivoted position pivoted in a second direction, and when the lifting apparatus is further lowered after installation, the engaging member automatically disengages from the corresponding engageable portion by pivoting back from the second pivoted position to the vertical position by weight thereof.

Provided is a membrane module which has a simple and easy structure to restrain its vessel from being increased in costs, and which allows to fabricate the vessel by a simple and easy work, and further to locate an inlet for a fluid, and others at respective predetermined positions of the membrane module.

A method of operating a high velocity cross flow dynamic membrane filtration includes feeding a fluid stream into a pressure vessel, in which the vessel defines a treatment chamber containing a disc membrane assembly having a first support shaft and a second support shaft, each support shaft defining a longitudinal axis about which is positioned a plurality of axially spaced membrane discs. The method further includes distributing the fluid stream over at least a portion of the disc membrane assembly. The method also includes discharging a first portion of the fluid stream from the vessel and discharging a second portion of the fluid stream from the vessel. The method additionally includes rotating the first support shaft and the second support shaft in a first direction. The rotating includes modulating a rotation rate in response to the flow rate of the second portion of the fluid stream.