Abstract: A configurable computer workstation has a base unit and at least one expansion unit, the units having height-adjustable legs and horizontal beams. A connecting structure hingedly and removably connects the expansion unit to the base unit to permit repositioning of the third height-adjustable leg spatially in a horizontal plane relative to the first and second height-adjustable legs. A clampable monitor mount is clampable on one of the beams and is infinitely adjustable along a length of the beam. Motorized height adjustment structures on the units are synchronized for adjusting height of the beams by the same amount in the same direction upon operation of a common control. The workstation is thereby modular, expandable and reconfigurable to permit configuring the workstation to accommodate physical space, ergonomics and the tasks to be performed at the workstation.

Abstract: A workstation has two work surfaces that have interfaceable complementary concave and convex edges, and which are maintained in the same horizontal plane by moveable arms connecting the undersides of the two work surfaces. The moveable arms are operable to move one of the work surfaces in the horizontal plane both arcuately along the complementary edges and laterally toward and away from the other work surface. The work surface that moves relative to the other may support a keyboard or other computer input device, while the other work surface may support one or more computer monitors. The workstation is useful for any user having the need or desire for a multi-monitor configuration.

Abstract: A workstation has two work surfaces that have interfaceable complementary concave and convex edges, and which are maintained in the same horizontal plane by moveable arms connecting the undersides of the two work surfaces. The moveable arms are operable to move one of the work surfaces in the horizontal plane both arcuately along the complementary edges and laterally toward and away from the other work surface. The work surface that moves relative to the other may support a keyboard or other computer input device, while the other work surface may support one or more computer monitors. The workstation is useful for any user having the need or desire for a multi-monitor configuration.

Abstract: A configurable computer workstation has a base unit and at least one expansion unit, the units having height-adjustable legs and horizontal beams. A connecting structure hingedly and removably connects the expansion unit to the base unit to permit repositioning of the third height-adjustable leg spatially in a horizontal plane relative to the first and second height-adjustable legs. A clampable monitor mount is clampable on one of the beams and is infinitely adjustable along a length of the beam. Motorized height adjustment structures on the units are synchronized for adjusting height of the beams by the same amount in the same direction upon operation of a common control. The workstation is thereby modular, expandable and reconfigurable to permit configuring the workstation to accommodate physical space, ergonomics and the tasks to be performed at the workstation.

Abstract: A cleaning apparatus for a radiation source assembly in a fluid treatment system is described. The cleaning apparatus comprises: a carriage movable with respect to an exterior of the radiation source assembly; at least one cleaning sleeve in sliding engagement with the exterior of the radiation source assembly, the at least one cleaning sleeve being moveable with respect to the carriage; and drive means coupled to the carriage to translate the carriage whereby the at least one cleaning sleeve is translated over the exterior of the radiation source assembly. A radiation source module comprising the cleaning apparatus is also disclosed. The radiation source module is particularly useful for ultraviolet radiation of wastewater while having the advantages of in situ cleaning of the radiation source when it becomes fouled. Radiation source replacement is also facilitated.