Abstract: A method of manufacturing an RFID tag assembly, the method comprising: providing a mounting base made of an electrically conductive material; providing a passive mount-on-metal RFID tag, the RFID tag comprising an IC chip and an antenna provided on one side; mounting the RFID tag on the mounting base with said one side of the RFID tag coupled to the mounting base, to form an RFID tag-mounting base sub-assembly; providing a mold tool comprising a mold cavity shaped to form a cover of the RFID tag assembly and locating the RFID tag-mounting base sub-assembly within the mold cavity; and delivering a substantially RF transparent material in a molten state into the void between the mold tool and the RFID tag-mounting base sub-assembly and allowing the material to cool into a solid state to form a cover over the RFID tag-mounting base sub-assembly, such that the mounting base and the cover together encapsulate the RFID tag.

Abstract: A method of manufacturing an RFID tag assembly, the method comprising: providing a mounting base made of an electrically conductive material; providing a passive mount-on-metal RFID tag, the RFID tag comprising an IC chip and an antenna provided on one side; mounting the RFID tag on the mounting base with said one side of the RFID tag coupled to the mounting base, to form an RFID tag-mounting base sub-assembly; providing a mold tool comprising a mold cavity shaped to form a cover of the RFID tag assembly and locating the RFID tag-mounting base sub-assembly within the mold cavity; and delivering a substantially RF transparent material in a molten state into the void between the mold tool and the RFID tag-mounting base sub-assembly and allowing the material to cool into a solid state to form a cover over the RFID tag-mounting base sub-assembly, such that the mounting base and the cover together encapsulate the RFID tag.

Abstract: An RFID tag assembly (10) comprising: a passive mount-on-metal RFID tag (12) comprising an integrated circuit chip and an antenna provided on one side (14) of the RFID tag; a mounting base (16) made of an electrically conductive material; and a cover (18) made of a substantially RF transparent material and defining a recess (18a), wherein the RFID tag is mounted on the mounting base with said one side of the RFID tag coupled to a first side of the mounting base and wherein the cover is arranged over the RFID tag such that at least part of the RFID tag is located within the recess and the cover is fixed to the mounting base, such that the mounting base and the cover together encapsulate the RFID tag.

Abstract: Surgical instrument RFID tag reading apparatus (10) comprises an interrogation zone (12) for receiving a surgical instrument set (14) comprising: a plurality of surgical instruments, each having a respective RFID tag containing identification information; an RFID tag reader (16); RF antenna (18) arranged to transmit an RF signal (20) and arranged to receive RF return signals from at least some of the RFID tags; guidance apparatus (22) arranged to cause predetermined relative movement between the RFID tags on the surgical instruments and the RF signal; and a controller (24) arranged to: receive the surgical instrument identification information from the RFID tag reader for each RFID tag from which an RF return signal is received; compare the received surgical instrument identification information with a surgical instrument list of the set; and; determine whether surgical instrument identification information has been received for each of the surgical instruments on the surgical instrument list, and if not, gen

Abstract: An RFID tag assembly (10) comprising: a passive mount-on-metal RFID tag (12) comprising an integrated circuit chip and an antenna provided on one side (14) of the RFID tag; a mounting base (16) made of an electrically conductive material; and a cover (18) made of a substantially RF transparent material and defining a recess (18a), wherein the RFID tag is mounted on the mounting base with said one side of the RFID tag coupled to a first side of the mounting base and wherein the cover is arranged over the RFID tag such that at least part of the RFID tag is located within the recess and the cover is fixed to the mounting base, such that the mounting base and the cover together encapsulate the RFID tag.

Abstract: A device 1, capable of being placed in-line in the exhaust conduit of an IC engine upstream of an SCR catalyst, which produces a gaseous hydrolysis product, containing ammonia, which is added to the exhaust gas in a controlled manner to pass therewith through the SCR catalyst to reduce the NOx content of the exhaust gas. The device 1 has an inlet 2 and an outlet 3 for the exhaust gas flowing therethrough and comprises an outer body 4, which forms a pressure barrier, and passing through the outer body 4 is an inner body 5 which comprises a flowpath longitudinally therethrough from the inlet 2 to the outlet 3.

Abstract: Apparatus for generating an ammonia-containing gas is described for use in the selective catalytic reduction of NOx contained in the exhaust gases of an IC engine. The apparatus has a hydrolysis reactor (101) for containing an aqueous solution of urea that is heated, in use, to an elevated temperature by way of heat exchange with the exhaust gases to hydrolyse the urea and liberate ammonia containing gases. A pressure control valve (105) is operable between a substantially closed position for enabling the pressure of the ammonia-containing gas to attain a predetermined elevated pressure within the reactor (101) and an open position when the gas is above the predetermined pressure. A reservoir (106) receives all of the ammonia-containing gas discharged from the reactor (101) when the pressure control valve (101) is in its open position and has an outlet for feeding ammonia-containing gas to the exhaust gases.

Abstract: A beverage dispenser to provide a plurality of different flavors with accurate mixing control comprises a housing (40, 42, 44) containing a diluent valve (46A, 46B) and at least two concentrate valves (48A, B, C, D), each valve having its own inlet (12) and outlet (14), characterized in that all the outlets (14) lead to a single dispense nozzle (50A, B, C), a flow rate sensor (16) is provided for each valve, the flow rate sensors (16) being connected to a controller (54), and a setting mechanism (52A, B, C, D, E, F) is provided to open and close each valve, the controller (54) operating the setting mechanisms whereby one concentrate valve and the diluent valve may be opened to dispense a particular beverage and, in response to the sensed flow rates through those opened valves, controlling the degree of opening of those valves to achieve a predetermined diluent to concentrate ratio for the beverage mixture in the dispense nozzle (50A, B, C).

Abstract: The invention provides an improved means of purifying water which comprises a water treatment apparatus comprising a treatment housing (10, 60) having an inlet (18, 65) for the water to be treated, an outlet (25, 67) for the treated water, a heater (17, 76) within the housing to come into direct contact with the water and a filter (22, 23, 78, 79) between the heater and the outlet, characterised in that means (38, 81) are provided to fill the housing with water up to a maximum level which leaves a headspace (10A, 80A) between the water and the roof (14, 61) of the housing, the entrance to the outlet being below the operating water level (10B, 80).

Abstract: The present invention is a flow rate control valve through which a liquid flows and from which the liquid is dispensed. The flow rate of the liquid is sensed and that information is sent to a microprocessor based control. The control operates a drive of the control valve so as to vary the resultant rate at which the liquid is dispensed therefrom. The drive operates a piston closure member that extends closely within a cylindrical passageway. The passageway has an inlet end and an outlet end and the drive operates the closure member in the passageway to a plurality of positions from a first position at the inlet end and a second position at the outlet end.

Abstract: A conductivity probe unit comprising a chamber with a restricted entrance and an internal button electrode, the chamber being located in the header tank of a radiator.