Back to results
US 5,290,331 AGranted
Localized clean air system
AssigneeUniversity of Bath
InventorsAnthony W. Miles, Norman J. Wood, Guy A. Wilson, Stephen C. Wilcox
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeUniversity of Bath
InventorsAnthony W. Miles, Norman J. Wood, Guy A. Wilson, Stephen C. Wilcox
Estimating the term…
A localized clean air system for operating theaters and a method of supplying clean air to a localized region in such situations. A fan is connected to a delivery head, which has an outlet for directing inlet clean air to the localized region in a particular pattern. A streamlined body is positioned in the outlet so that, in use, the clean air flows around the body and is modified thereby to form, immediately downstream of the body, an inner region of low velocity air encircled by an outer region of higher velocity air. Preferably, the streamlined body is symmetrical about its axis and is aligned with the clean air flow, for instance by being centrally positioned in the air outlet. The streamlined body preferably comprises a rounded head and a tapered tail. A diffuser is disposed in the clean air flow upstream of the streamlined body to minimize turbulence in the air flow.
A localized clean air system comprising:
A delivery head for a localized clean air system for delivering air to an external localized region, the delivery head comprising an air outlet positioned at a downstream end thereof for directing air to the external localized region, a streamlined body positioned in the air outlet for forming an outer sheath of higher velocity air which surrounds an inner region of lower velocity air, said streamlined body having a head and a tail of diminishing cross-sectional area extending downstream along a longitudinal axis, with the overall air flow being substantially turbulence free, and a final filter located upstream from the body;
A localized clean air system comprising:
Dependencies are inferred from the claim text.