Abstract: An apparatus for aerosol collection and fluid analysis includes a rotary motor, an aerosol-collection disk configured for mounting on the rotary motor, and a fluid-analysis disk that is also configured for mounting on the rotary motor. The aerosol-collection disk includes at least one interior inlet, at least one peripheral outlet and a passage coupling the interior inlet with the peripheral outlet, and a particle collector opposite the peripheral outlet. The fluid-analysis disk includes at least one fluid in each of a first reservoir and in a second reservoir on or in the fluid-analysis disk and offset from a central axis of the disk, wherein each reservoir has an outlet and a stopper in the outlet of each reservoir to seal the reservoirs; and release of the fluids from the reservoirs is spin-induced.

Abstract: The invention provides in a first aspect a closure (10) for a passageway such as a bottleneck. The closure (10) has a concertina element (16). When the concertina element (16) is released, the closure (10) can be removed from the passageway. The concertina element (16) may have folds (18), including compressible folds, may be in the form of a spiral. In a further aspect, the invention provides a second aspect a closure (110), which has a processing (132). The processing (132) may include a computer chip (134), is adapted to receive or convey various types of data, such as characteristics of the contents of the container closed by the closure (10). The first and second aspects may be combined.

Abstract: A dispensing system (200) for chewable pet toys (100) contains multiple toys and dispenses them at intervals determined by one or more modes of operation. A display (220) and keypad (400) are used to enter programming data into the memory of a microprocessor (315). When the system is in operation, the display indicates progress through the program, the mode of operation whether MANUAL, RANDOM, or BMOD (behavior modification), the time elapsed, and the number of toys remaining. At various times, sounds emanate from a loudspeaker (320), vibration emanates from a vibrator (328), light emanates from a light source (325), and odor emanates from an odor generator (327). Toys are dispensed down a ramp (225), at predetermined times, or at predetermined times modified by random numbers. Predetermined dispensations permit modification of the pet's behavior (BMOD). Random variations on a predetermined schedule of dispensations (RANDOM) prevent the pet from memorizing a schedule.