The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 2006
Filed:
Mar. 26, 2004
Peter D. Lee, Cleveland, GB;
Christopher P. Henderson, Brandon, GB;
Peter D. Lee, Cleveland, GB;
Christopher P. Henderson, Brandon, GB;
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A respirator hoodthat has an air chamberarranged above the head of a user for delivery of breathable air. The air chamberhas an air inletconnected to an air supply hoseand an air outletThe outletis arranged to direct air away from the eyes of the user. The air chamberforms an air ductthat substantially covers the top of the hoodabove the user's head. The ductis collapse-resistant so that the duct shape is maintained in use and air flow through the ductis substantially unrestricted. As a result, a substantially uniform air flow can be achieved in use, which air flow pattern is repeatable from day to day and from hood to hood.