Surgery – Respiratory method or device – Including body or head supported means covering user's scalp
Patent
1998-03-10
2000-08-15
Weiss, John G.
Surgery
Respiratory method or device
Including body or head supported means covering user's scalp
12820115, 2 9, 2427, 2429, A62B 1704
Patent
active
061020338
ABSTRACT:
A replaceable lens attachment system for respiratory devices and methods of use. The replaceable lens attachment system includes a face shield having rotatable attachment members and a replaceable lens. The rotatable attachment members include cams and flanges. The attachment system may further comprise a helmet respirator with support elements disposed thereon. The method includes bowing the lens and inserting it into the frame. The rotatable attachment members are rotated to urge the lens into the frame and cover the frame. The flanges and support elements provide impact resistance to the lens.
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Product information: 3M Positive Pressure Respirators, 3M Occupational Health and Environmental Safety Division, Dec., 1996.
Standard: "American National Standard Practice for Occupational and Educational Eye and Face Protection", American National Standards Institute, Inc., (Approved Feb. 2, 1989).
Brochure: "Powered Respirators", Racal Health & Safety, (undated).
Baribeau Gary A.
Burns James A.
Mittelstadt William A.
Swanson William J.
3M Innovative Properties Company
Rogers James A.
Weiss John G.
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