Abstract: A video recording system for effectively recording video images of unaware subjects under a broad range of lighting conditions automatically in response to detection of motion by such subject using a camera system having controls enabling selective operation of such camera system. The video recording system comprises a motion detector operatively associated with such a camera system in order to selectively produce, in response to detection of motion as by such a subject, an output signal for selectively adjusting such camera's light sensitivity and for selectively causing such camera system to begin recording video images of such subject. The video system also comprises a light sensitivity adjustment system for ensuring that such camera is able to effectively record video images of such subject under such broad range of lighting conditions in response to receipt of the output signal.

Abstract: A cradle system used in purification systems for releasably capturing and reversibly displacing a set of cylindrically contoured filter cartridges mounted thereon. The cradle system includes at least a first longitudinally extending cradle frame having a pair of first rod members within which the filter cartridges are mounted. At least a second longitudinally extending cradle frame having a pair of longitudinally extending and transversely displaced second rod members is coupled to the first cradle frame. Coupling is provided by a cradle rotational securement mechanism which constrains the first cradle frame to the second cradle frame but allows rotational displacement of one cradle frame with respect to another.