Abstract: A system includes a hydrocyclone liner. The hydrocyclone liner includes a head section having a fluid inlet formed in a first sidewall of the head section and an overflow outlet. The hydrocyclone liner also includes a separation section having an underflow outlet. A sleeve is disposed about at least a portion of the head section, a portion of the separation section, and an interface between the head section and the separation section.

Abstract: A system includes a hydrocyclone liner. The hydrocyclone liner includes a head section having a fluid inlet formed in a first sidewall of the head section and an overflow outlet. The hydrocyclone liner also includes a separation section having an underflow outlet. A sleeve is disposed about at least a portion of the head section, a portion of the separation section, and an interface between the head section and the separation section.

Abstract: A system includes a hydrocyclone liner. The hydrocyclone liner includes a head section having a fluid inlet and an overflow outlet. The hydrocyclone liner also includes a separation section having an underflow outlet and a first sidewall. A diameter of the separation section of an outer surface of the first sidewall is constant along a length of the outer surface of the first sidewall. The head section and the separation section are joined together via a bond at an interface between the head section and the separation section. The hydrocyclone liner includes a sleeve disposed about at least a portion of the head section, the separation section, and the interface. The sleeve is configured to hold the head section and the separation section together if the bond fails.

Abstract: A system includes a hydrocyclone liner. The hydrocyclone liner includes a head section having a fluid inlet and an overflow outlet. The hydrocyclone liner also includes a separation section having an underflow outlet and a first sidewall. A diameter of the separation section of an outer surface of the first sidewall is constant along a length of the outer surface of the first sidewall. The head section and the separation section are joined together via a bond at an interface between the head section and the separation section. The hydrocyclone liner includes a sleeve disposed about at least a portion of the head section, the separation section, and the interface. The sleeve is configured to hold the head section and the separation section together if the bond fails.

Abstract: A method of storing information on a memory device. The method comprises setting up a user to be associated with the memory device including biometric information obtained from a biometric reader. The method also comprises coding at least a portion of the biometric information before storage in the memory device.

Abstract: A high-security Transaction Card includes a card body having a perimeter and at least one face with a magnetic strip on at least one face or, electronic storage device such as used in a smart card having non-biometric data encoded therein. At least one two-dimensional Symbol encoded with binary data is included. The Symbol is located within the perimeter of the Transaction Card body on at least one face and the Symbol may have an identifying representation of biometric data of the authorized Transaction Cardholder encoded therein.

Abstract: Erosion-resistant liquid/liquid hydrocyclone liners, wherein the weight and cost of the liners are kept within acceptable parameters through the construction of a composite hydrocyclone liner, comprised of two or more different materials. The hydrocyclone liner includes a head section that is fashioned, primarily, of a highly erosion-resistant material, such as tungsten carbide. The liner also includes a separate separation section that is primarily fashioned of a material that may be less erosion-resistant but which is less brittle and more physically durable than that used to construct the head section. As a result of this composite construction, the liner is less likely to fail mechanically during installation or use. The head and separation sections are removably affixed to one another. The separation section of the hydrocyclone liner is provided with one or more structural supports to provide mechanical strength and resistance to bending.

Abstract: Erosion-resistant liquid/liquid hydrocyclone liners, wherein the weight and cost of the liners are kept within acceptable parameters through the construction of a composite hydrocyclone liner, comprised of two or more different materials. The hydrocyclone liner includes a head section that is fashioned, primarily, of a highly erosion-resistant material, such as tungsten carbide. The liner also includes a separate separation section that is primarily fashioned of a material that may be less erosion-resistant but which is less brittle and more physically durable than that used to construct the head section. As a result of this composite construction, the liner is less likely to fail mechanically during installation or use. The head and separation sections are removably affixed to one another. The separation section of the hydrocyclone liner is provided with one or more structural supports to provide mechanical strength and resistance to bending.

Abstract: There is described a method of treatment of certain psychiatric conditions which method comprises administration of a compound of the formula I, ##STR1## or a therapeutically acceptacle salt, ester or amide thereof, (as active ingredient), to a patient having such a condition.

Abstract: There is described a method of treatment of certain psychiatric conditions, or of certain skin conditions, which method comprises per os administration of a compound of the formula I ##STR1## or a therapeutically acceptable salt, ester or amide thereof, wherein X is a polymethylene chain containing 3 to 7 carbon atoms inclusive, which chain may be substituted by an --OH group, (as active ingredient), to a patient having such a condition.

Abstract: There is described a method for the treatment of gingivitis (and particularly chronic gingivitis) which comprises administering an effective quantity of 1,3-bis(2-carboxychromon-5-yloxy)-2-hydroxypropane, or a pharmaceutically acceptable salt thereof, as active ingredient, to a patient suffering from gingivitis.

Abstract: There is described a method for the treatment of hyperuricaemia and/or gout, which comprises administering an effective quantity of 6,8-di-t-butyl-4-oxo-4H-1-benzopyran-2-carboxylic acid, or a pharmaceutically acceptable salt thereof, as active ingredient, to a patient having hyperuricaemia and/or gout. There are also described unit dosage forms of pharmaceutical compositions containing the compound.