A liquid gas system for mobile applications comprises at least one remote gas switch that is mountable to a bottle of liquid gas and a gas pressure regulator. The high-pressure input of the gas pressure regulator is connected to the remote gas switch. A distribution block is provided, the input of which is connected to the low-pressure output of the gas pressure regulator. A filter unit is arranged between the low-pressure output of the gas pressure regulator and the distribution block. Further, an electronic controller is provided which is connected to the remote gas switch.

A filter core and manufacturing method thereof, the manufacturing method has the following steps: adhering a wavy filtering sheet and a flat filtering sheet, pressing the filtering sheets, and rolling the filtering sheets. A part of peaks of the wavy filtering sheet are pressed to lean toward a same side. In particular, two sides of a first end sealing adhesive layer are pressed. Thus, the first end sealing adhesive layer is concentrated, such that the glue is uniformly spread to the two sides. Besides, the pressing on the two sides makes the two sides of the first end sealing adhesive layer adhered securely, thereby preventing the wavy filtering sheet from rebounding upward and forming bubbles. Thus, the first end sealing adhesive layer can be formed with less quantity of glue, which accelerating the cooling and raises manufacture efficiency.

A filter apparatus and method utilize a filter element, defining a longitudinal axis and an axial end thereof, and having a central winding structure and a length of fluted filter material wound about the winding structure with the flutes of the media oriented to provide for filtration of fluid passing axially through the filter element. An edge of filter media defines the axial end of the filter element when the media is wound about the winding structure. An axial end of the winding structure is disposed adjacent the axial end of the filter element. A winding feature extends substantially axially outward from the axial end of the winding structure to a distal end of the winding feature. The filter media is wrapped about the winding structure such that the axial end of the filter element is disposed substantially flush with the distal end of the winding feature.

A filter press having a plurality of stackable filter plate assemblies comprises at least one turbidity sensing module [20, 220, 320, 420] coupled to a first filter plate assembly [1] within the plurality of stackable filter plate assemblies. The turbidity sensing module [20, 220, 320, 420] is generally positioned between a filtrate drain opening [8a-d] communicating with a filter chamber [14], and either a filtrate port [7, 13] or filtrate discharge tube [4g, 15], in order to determine a level of turbidity of filtrate [50] exiting said first filter plate assembly. Turbidity levels may be determined independently of turbidity levels of filtrate [50] exiting other filter plate assemblies [1] within the filter press. When turbidity levels reach a predetermined threshold, and alarm [80] is activated, which informs an operator of the need to replace a filter cloth associated with the affected filter plate assembly [1].

An apparatus having one or more filters positioned by a connection member. The connection member orientates one or more filters at a transverse angle relative to the horizontal to drain contaminants from the filter.

A collapsible water filter has a telescopic container and a filter cartridge. The telescopic container has a telescopic segment and a connection segment, and the telescopic segment having a first end and a second end opposite to the first end. The telescopic segment defines a holding space, and the holding space has a first opening adjacent to the first end of the telescopic segment. When the first end and the second end of the telescopic segment are under a force such that the first end and the second end approach each other, the volume of the holding space is reduced. When the first end and the second end of the telescopic segment are under a force such that the first end and the second end move away from each other, the volume of the holding space is increased.

The present invention provides, among other things, methods for purifying mRNA based on normal flow filtration for therapeutic use.

The present invention provides, among other things, methods for purifying mRNA based on normal flow filtration for therapeutic use.

A filter cleaning apparatus has a top section and a base section. The top section rests on a housing support. A lid in the top section is connected to the top section by a hinge. Internally, there is a threaded rod supporting a cone and a positioning nut. The positioning nut is used to secure the position of the cone. When a filter is to be placed in the apparatus, the position of the cone is adjusted with the positioning nut. A filter is then placed thereon and the lid closed. A locking mechanism secured the lid in place. A textured disk is positioned on the underside of the lid. When a crank handle on top of the lid is turned, the textured disk is turned thereby turning the filter resting on the cone. As the filter turns, cleaning mechanisms remove debris which pass through openings for removal.

A filter cleaning apparatus has a top section and a base section. The top section rests on a housing support. A lid in the top section is connected to the top section by a hinge. Internally, there is a threaded rod supporting a cone and a positioning nut. The positioning nut is used to secure the position of the cone. When a filter is to be placed in the apparatus, the position of the cone is adjusted with the positioning nut. A filter is then placed thereon and the lid closed. A locking mechanism secured the lid in place. A textured disk is positioned on the underside of the lid. When a crank handle on top of the lid is turned, the textured disk is turned thereby turning the filter resting on the cone. As the filter turns, cleaning mechanisms remove debris which pass through openings for removal.