A passive fluid treatment assembly is provided including a passive treatment body defining a primary flow path and a liquid treatment path. The liquid treatment path bypasses a portion of the primary flow path and enters a treatment enclosure through a high pressure port. The fluid entering the high pressure port is treated by a treatment media in the treatment enclosure and exits through a low pressure port into a mixing chamber where it is remixed with the fluid in the primary flow path. A one-way valve is operably coupled to an outlet of the high pressure port for preventing the flow of treated fluid from exiting the treatment enclosure through the high pressure port.

A passive fluid treatment assembly is provided including a passive treatment body defining a primary flow path and a liquid treatment path. The liquid treatment path bypasses a portion of the primary flow path and enters a treatment enclosure through a high pressure port. The fluid entering the high pressure port is treated by a treatment media in the treatment enclosure and exits through a low pressure port into a mixing chamber where it is remixed with the fluid in the primary flow path. A one-way valve is operably coupled to an outlet of the high pressure port for preventing the flow of treated fluid from exiting the treatment enclosure through the high pressure port.

A passive fluid treatment assembly is provided including a passive treatment body defining a primary flow path and a liquid treatment path. The liquid treatment path bypasses a portion of the primary flow path and enters a treatment enclosure through a high pressure port. The fluid entering the high pressure port is treated by a treatment media in the treatment enclosure and exits through a low pressure port into a mixing chamber where it is remixed with the fluid in the primary flow path. A one-way valve is operably coupled to an outlet of the high pressure port for preventing the flow of treated fluid from exiting the treatment enclosure through the high pressure port.

The invention relates to the filtering of liquid samples, preferably in a laboratory environment, for example for collecting micro organisms from the liquid sample for subsequent testing. The invention provides a method for filtering a liquid sample which comprises providing a blank of a deformable sheet material and a filtration medium, deforming the blank to form a funnel extending above and about the filtration medium, introducing the liquid sample to be filtered into the so formed funnel, and filtering the liquid sample from the funnel through the filtration medium, for example to a downstream receptacle. The method is accordingly based on the concept that the funnel is not or at least not completely preformed but provided in a form of a blank of a deformable material sheet which is deformed so as to form the funnel at the point and time of use during filtration.

The invention relates to the filtering of liquid samples, preferably in a laboratory environment, for example for collecting micro organisms from the liquid sample for subsequent testing. The invention provides a method for filtering a liquid sample which comprises providing a blank of a deformable sheet material and a filtration medium, deforming the blank to form a funnel extending above and about the filtration medium, introducing the liquid sample to be filtered into the so formed funnel, and filtering the liquid sample from the funnel through the filtration medium, for example to a downstream receptacle. The method is accordingly based on the concept that the funnel is not or at least not completely preformed but provided in a form of a blank of a deformable material sheet which is deformed so as to form the funnel at the point and time of use during filtration.

A filter cartridge for use within a filter housing includes a filter tube, a flow port, and a filter plate. The filter tube can be formed of an elongated tubular member that is porous along its length. The flow port can be disposed at one end of the filter tube. The filter plate can be formed of a porous material disposed within the flow port. The filter tube and the filter plate may define a resin chamber for containing an adsorbent polymer resin.

A filter cartridge for use within a filter housing includes a filter tube, a flow port, and a filter plate. The filter tube can be formed of an elongated tubular member that is porous along its length. The flow port can be disposed at one end of the filter tube. The filter plate can be formed of a porous material disposed within the flow port. The filter tube and the filter plate may define a resin chamber for containing an adsorbent polymer resin.

A filter element assembly comprises a filtration media and an end fitting through which a sealing connection is made between the assembly and a housing so that the end fitting defines a flow path between the housing and the filtration media. The end fitting has first and second parts which can be separated axially, and the filter media extends axially away from the second part in a direction away from the first part. Each of the parts has an outer wall with an external threaded cylindrical surface, and each of the first and second parts has an axially facing edge surface which faces the other of the first and second parts, the facing edge surfaces shaped to define a pre-determined relative rotational alignment of the first and second parts, where the parts fit together so that the threads on the external surfaces of the parts form a continuous thread.

A fuel storage and supply arrangement serving as a source of fuel to be dispensed via at least one fuel dispenser in a fuel dispensing environment. The arrangement comprises a storage tank for containing a quantity of the fuel and a pump assembly for drawing the fuel from the storage tank providing the fuel under pressure. A fuel supply line is configured to convey the fuel under pressure from the pump assembly to the at least one fuel dispenser in a dispenser flow path. A fuel conditioning and filtration assembly comprise a housing having a housing inlet receiving the fuel under pressure created by the pump and a housing outlet whereby the fuel entering the housing inlet exits the housing through the housing outlet. A filter element is within the housing and interposed in the flow path between the housing inlet and the housing outlet. A return tube receiving fuel from the outlet of the housing is also provided. An agitator manifold receiving the fuel from the return tube and having an agitator tube defining a plurality of agitation holes, the agitator tube being positioned proximate to the bottom of the fuel storage tank. In addition, the agitator manifold is movable between an insertion orientation and a deployed orientation. A flow control valve is provided for controlling the flow of the fuel along the fuel conditioning and filtration flow path.

A fuel storage and supply arrangement serving as a source of fuel to be dispensed via at least one fuel dispenser in a fuel dispensing environment. The arrangement comprises a storage tank for containing a quantity of the fuel and a pump assembly for drawing the fuel from the storage tank providing the fuel under pressure. A fuel supply line is configured to convey the fuel under pressure from the pump assembly to the at least one fuel dispenser in a dispenser flow path. A fuel conditioning and filtration assembly comprise a housing having a housing inlet receiving the fuel under pressure created by the pump and a housing outlet whereby the fuel entering the housing inlet exits the housing through the housing outlet. A filter element is within the housing and interposed in the flow path between the housing inlet and the housing outlet. A return tube receiving fuel from the outlet of the housing is also provided. An agitator manifold receiving the fuel from the return tube and having an agitator tube defining a plurality of agitation holes, the agitator tube being positioned proximate to the bottom of the fuel storage tank. In addition, the agitator manifold is movable between an insertion orientation and a deployed orientation. A flow control valve is provided for controlling the flow of the fuel along the fuel conditioning and filtration flow path.