초록 ▼

Disclosed are improved vacuum cleaning apparatus that utilize toroidal vortex air flow in order to establish a pressure differential capable of attracting debris. These systems and its derivatives are essentially closed systems; there is no constant intake and exhaust of fluid. Included in the debri

Disclosed are improved vacuum cleaning apparatus that utilize toroidal vortex air flow in order to establish a pressure differential capable of attracting debris. These systems and its derivatives are essentially closed systems; there is no constant intake and exhaust of fluid. Included in the debris collection apparatus is a compaction means that captures debris caught in the toroidal vortex flow, and deposits it in a desired chamber.

대표청구항 ▼

Disclosed are improved vacuum cleaning apparatus that utilize toroidal vortex air flow in order to establish a pressure differential capable of attracting debris. These systems and its derivatives are essentially closed systems; there is no constant intake and exhaust of fluid. Included in the debri

Disclosed are improved vacuum cleaning apparatus that utilize toroidal vortex air flow in order to establish a pressure differential capable of attracting debris. These systems and its derivatives are essentially closed systems; there is no constant intake and exhaust of fluid. Included in the debris collection apparatus is a compaction means that captures debris caught in the toroidal vortex flow, and deposits it in a desired chamber. J. Biomater. Sci. Polymer Edn., vol. 7, pp. 297-305 (1995). Groth, T. et al., "Studies on cell-biomaterial interaction: role of tyrosine phosphorylation during fibroblast spreading on surfaces varying in wettability," Biomaterials, vol. 17, pp. 1227-1234 (1996). Groth, T.H. et al., "Adhesion of human peripheral lymphocytes on biomaterials preadsorbed with fibronectin and vitronectin," J. Biomater. Sci. Polymer Edn., vol. 6, pp. 729-739 (1994). Grushkin-lerner, L.S. et al., "Expression of integrin receptors on pl