Abstract: The present invention is a system for recreational purposes. The system includes a vessel rotatably mounted, a support stand, and a drive system. The vessel has a wall that defines an internal cavity, sufficient for at least one occupant to be received wherein the occupant is in contact with the wall, and a tunnel for accessing the internal cavity. The wall has dampens the contact between the occupant and the vessel. The support stand has two connectors carried by elevated members on opposing sides of the vessel for supporting the vessel. A drive system that includes a motor mechanically connected to at least one of the connectors for rotating the vessel and the occupant within the internal cavity.

Abstract: An isolation shelter includes, in its interior, an inner closure defining an isolation space. The isolation space is at a pressure less than the pressure of the environment in the shelter interior, at the outside of the inner enclosure. An outer enclosure of the shelter encloses a sealed region defined at least in part by a structural element contained within the shelter interior A sealed space, which is partially defined by any portion of the outer enclosure that can become exposed to the environment outside the outer enclosure, extends from the outer enclosure into the shelter interior. The sealed space is at a pressure exceeding the pressure of the environment outside of the shelter, thereby substantially preventing contamination in the environment outside the shelter from entering the shelter interior and passing to the isolation space. The pressure in the isolation space substantially prevents contaminants from escaping the isolation space into the environment outside the isolation shelter.

Abstract: An isolation container includes an isolation space for receiving an object and maintains the isolation space substantially isolated while providing for continuous access to, and maneuverability within, the isolation space through one or more access ports. An air management system re-circulates air through the isolation space to create a negative or positive pressure within the space, and is operable to filter, and optionally adjust the temperature and humidity of, the re-circulating air. In an embodiment of the isolation container configured for transporting a patient in the isolation space, a communications system is also coupled to the isolation space to provide for audio, video or other data communications between the patient and a communications device external to the isolation container.

Abstract: Thermal inkjet inks having at least about 4 percent by weight pigment, a dispersant having moieties of methacrylic acid, poly(propylene glycol)-4-nonylphenyl ether acrylate and poly(ethylene glycol)2,4,6-tris-(1-phenylethyl)phenyl) ether methacrylate; a humectant and a surfactant, preferably ethoxylated 2,4,7,9-tetramethyl 5 decyn-4,7-diol.

Abstract: The present invention provides pigmented inks comprising self-dispersing pigment and an amino-containing compound. The addition of an amino-containing compound to the self-dispersing pigment can improve the reliability and performance of the ink in an inkjet printhead. The present invention also provides methods for making a surface modified pigment comprising associating a self-dispersing pigment with an amino-containing compound having no more than one primary amino group or one secondary amino group.