Hollow fiber cartridges and components and methods of their construction.

A membrane arrangement for the permeative separation of a gas from gas mixtures has a porous, gas-permeable, metallic support substrate, a membrane formed on the support substrate and selectively permeable for the gas to be separated off. A ceramic, gas-permeable, porous, first intermediate layer is formed between the support substrate and the membrane and directly on the support substrate. A gastight, metallic coupling part is joined by a material-to-material bond to the support substrate. The support substrate and the coupling part are separated by a dividing line. The intermediate layer extends towards the coupling part over the gas-permeable surface of the porous support substrate at least to a distance of 2 mm from the dividing line and extends over the gastight surface of the coupling part by not more than 2 mm beyond the dividing line.

Hollow fiber cartridges and components and methods of their construction.

According to an aspect, a detonator positioning device is provided for use with a wireless detonator in a perforating gun assembly. The detonator positioning device includes a single mechanism for physical electrical connection, while the remaining electrical connections are made via electrically contactable components. A method of assembling the perforating gun assembly is also provided, including a detonator positioning device configured to receive and hold the wireless detonator.

Fluid treatment assemblies comprising a plurality of adjustable tensioning rod assemblies comprising tensioning rods having a tensioning nut and a locking nut threadably attached to the tensioning rods, and methods of adjusting the tension on the assemblies, are provided.

A water filtration system utilizes a housing configured to utilize various types of filter media and having a press-sealed closing system. The closing system includes a head portion defining a head opening, a lock member, and a lid member. The lock member releasably engages the head portion such that an abutment section of the lock member projects into the head opening. The lid member is received by the head portion to cover the head opening, and has an outward-facing press section configured to abut an inward facing portion of the abutment section of the lock member when the lid member is covering the head opening. Pressure generated within the housing during water filtration presses the lid member in an outward direction and causes the lid member press section to press against the abutment section of the lock member to substantially prevent disengagement of the lock member from the head portion.

A removable device that ensures that the port of a filter cartridge is liquid tightly sealed to the port of the head of a housing even when there is insufficient room beneath the bowl to allow one to physically secure the cartridge port to the head port before securing the head and bowl together. The invention uses one or more removably attached alignment devices to center the cartridge in the bowl and maintain it at a height sufficient to ensure that the two ports are aligned and liquid tightly sealed to each other when the bowl and head are mated together.

A membrane cartridge including: a filtration membrane (2); and a support plate (3). The support plate (3) includes a reference surface, a first joint portion (32) protruding from the reference surface, and a second joint portion (33) retreated from the reference surface, the second joint portion (33) is provided closer to an outer edge (35) of the support plate (3) than the first joint portion (32) is, at least a portion of an outer edge portion (21) of the filtration membrane (2) is joined to the support plate (3) at the second joint portion (33), and a portion of the filtration membrane (2) inward of the outer edge portion (21) is joined to the support plate (3) at the first joint portion (32).

A stack plate device for a humidifier for a fuel cell system includes first stack plates and second stack plates being stacked one on top of each other alternately in a stacking direction, top sides of the first stack plates facing bottom sides of the second stack plates, top sides of the second stack plates facing bottom sides of the first stack plates, and each of the first stack plates and the second stack plates comprising a peripheral frame that encloses a through-opening and has an inflow region and an outflow region. First flow channels and second flow channels are formed in the first stack plates and the second stack plates and formed transversely to one another, the first flow channels and second flow channels being separated by moisture-permeable layers.

A membrane filter for filtering a liquid by submerged operation, the membrane filter comprising membrane elements arranged horizontally adjacent to one another and including headers, each membrane element including membranes arranged in a vertical longitudinal direction and filtering a liquid permeate from the liquid, a header of the headers that is arranged at a uniform header level and includes a permeate collection cavity, wherein the membranes are connected at a permeate side of the permeate collection cavity, a permeate outlet draining the liquid permeate in an outlet direction horizontally from the permeate collection cavity, and a tube connected at a top of the header and laterally enveloping the membranes of the membrane element, wherein the permeate outlet of each of the membrane elements is connected at a horizontally extending common permeate collector that drains the liquid permeate from the membrane filter.