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Title: Gas flow means for improving efficiency of exhaust hoods

Apparatus is described for inhibiting the flow of contaminants in an exhaust enclosure toward an individual located adjacent an opening into the exhaust enclosure by providing a gas flow toward a source of contaminants from a position in front of an individual to urge said contaminants away from the individual toward a gas exit port. The apparatus comprises a gas manifold which may be worn by a person as a vest. The manifold has a series of gas outlets on a front face thereof facing away from the individual and toward the contaminants to thereby provide a flow of gas from the front of the individual toward the contaminants. 15 figures.
Inventors:
Issue Date:
OSTI Identifier:
5152530
Assignee:
Univ. of California, Oakland, CA () PTO; EDB-94-064886
Patent Number(s):
US 5277653; A
Application Number:
PPN: US 7-757716
Contract Number:
AC03-76SF00098
Resource Relation:
Patent File Date: 11 Sep 1991
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; CONTAINMENT SYSTEMS; AIR FLOW; LABORATORY EQUIPMENT; DESIGN; EXHAUST SYSTEMS; OCCUPATIONAL SAFETY; CONTAINMENT; ENGINEERED SAFETY SYSTEMS; EQUIPMENT; FLUID FLOW; GAS FLOW; SAFETY; 420202* - Engineering- Protective Structures & Equipment