Abstract:
A pond filter comprising a housing (1) having a fluid inlet (11) and a fluid outlet (12), and a UV filter chamber (2) disposed in a fluid flow path between the inlet and the outlet. The UV filter chamber (2) comprises a UV lamp (21) disposed in a tube (23) and arranged for illuminating water flowing through the UV filter chamber (2). The UV filter chamber (2) comprises a shroud portion (24) in which the tube (23) and UV lamp (21) are disposed, with a fluid channel (25) through the UV filter chamber being defined between the tube (23) and the shroud portion (24). The UV filter chamber (2) comprises at least one sealing arrangement (6) provided between the tube (23) and the shroud portion (24) for sealing against the ingress of fluid into the interior of the tube (23) from the fluid channel (25). The sealing arrangement comprising a sealing assembly (61, 62) for mounting the tube (23) to the shroud portion (24) and sealing means (63) for forming a seal between the sealing assembly (61, 62) and the tube (23). In particular the sealing assembly comprises a nut (61) for engagement with the shroud portion (24) and carries a bushing (62). The sealing means comprises an O-ring seal (63) which is retained between the nut (61) and the bushing (62). The seal (63) is urged by the nut and bushing into sealing contact with the tube (23) as the nut is engaged onto the shroud portion (24).
Abstract:
A lamp base is provided having terminal pins mounted on and extending outwardly along a longitudinal axis of the lamp base. At least one of the pins may be a female pin connector. The female pin connector may be provided within a sheath that extends from an end of the lamp base along a longitudinal axis of the lamp base.
Abstract:
A liquid treatment apparatus (2), configured for light treatment of a liquid (4) flowing through at least one treatment chamber (6) having a first end (8) and a second end (10), the treatment chamber (6) is defined as a first elongated circumferential hollow cavity between an inner wall (12) of a housing (14) and an outer wall (16) of a translucent sleeve (18) arranged to protect and include a lamp (20). The apparatus comprises a connection arrangement (23) configured to be arranged in connection to a sleeve opening (24) at the first end (8) of the treatment chamber (6), and provided with a force generating member (26) configured, when the connection arrangement (23) is in a closed state, to generate a force to a lamp socket (28) to clamp the lamp (20) within the sleeve (18), the force is directed essentially in the longitudinal direction of the sleeve (18). The apparatus further comprises a front end support member (30) provided at a front end (32) of the lamp (20) to support the lamp against an inner surface (34) of the sleeve (18) in an axial direction when the connection arrangement (23) is in its closed state.
Abstract:
A method and a system for producing a change in a medium. The method places in a vicinity of the medium an energy modulation agent. The method applies an initiation energy to the medium. The initiation energy interacts with the energy modulation agent to directly or indirectly produce the change in the medium. The energy modulation agent has a normal predominant emission of radiation in a first wavelength range outside of a second wavelength range (WR2) known to produce the change, but under exposure to the applied initiation energy produces the change. The system includes an initiation energy source configured to apply an initiation energy to the medium to activate the energy modulation agent.
Abstract:
A water treatment system is capable of meeting the particular needs of a variety of water treatment system applications. For instance, the water treatment system may include a customizable display, multiple interchangeable filters and disinfection systems. In one embodiment, a vessel containing the filters and disinfection assembly can be easily removed from a base that supplies water to the vessel. In another embodiment, the water treatment system includes a plate that includes at least one electrical connection. One or more electronics bricks with sensors, displays and the like can be removably attached to the plate such that each electronics brick is in electrical communication with said brick. In another embodiment, the water treatment system incorporates one or more stackable and interchangeable filter blocks that direct water flowing into the vessel through each filter media.
Abstract:
Disclosed is inductive coupling of power to devices having negative resistances, such as gas-filled discharge lamps (fluorescent tubes, neon signs, and the like) from a primary inductive loop, using resonant conditioning of the power provided to the device. A "C" shaped inductor (202) around the loop and a resonating capacitor (406) in parallel with the inductor provide a current source to the lamp (403) from across the capacitor. The circuit is capable of first igniting a lamp using a higher voltage available when the Q of the unloaded circuit is high, then running the lamp or other device at a controlled current. The lamp current is substantially proportional to the primary inductive loop flux, and substantially independent of the lamp resistance. A second inductor (404) in series with the first though not itself a collector of flux acts as a current limit. Applications include lighting, displays (optionally isolated and dimmable), and production of ultraviolet radiation.
Abstract:
A liquid treatment apparatus (2), configured for light treatment of a liquid (4) flowing at a flow rate through at least one treatment chamber (6) having a first end (8) and a second end (10), the treatment chamber (6) is defined as a first elongated circumferential hollow cavity (13) between an inner wall (12) of a housing (14) and an outer wall (16) of a translucent sleeve (18) arranged to protect and include a tube-shaped treatment lamp (20). The lamp (20) is arranged with regard to the sleeve (18) such that a second elongated circumferential hollow cavity (15) is defined. The radial distance (e) between the outer wall surface of the lamp (20) and the inner wall surface (19) of the sleeve (18) is at least about 4 mm, such as about 4-20 mm, wherein the radial distance (e) is optimized with regard to preventing fouling/scaling of the outer wall surface (16) of the sleeve (18) caused by the light treatment.
Abstract:
A light-guiding member comprises a light transmissive, solid carrier material, and scattering particles of boron nitride dispersed in said carrier material. The light-guiding member is employed in a light emitting arrangement comprising a solid state light emitting element arranged to emit light into the light guiding member via a light input surface. Light can be guided within the light-guiding member to be outcoupled via at least part of a light output surface. Te light emitting arrangement provides a simple and efficient illumination device for UV disinfection of water and other fluids.