Surgery – Respiratory method or device – Means for removing substance from respiratory gas
Reexamination Certificate
2006-10-10
2006-10-10
Lewis, Aaron J. (Department: 3743)
Surgery
Respiratory method or device
Means for removing substance from respiratory gas
C128S206150, C128S207120
Reexamination Certificate
active
07117868
ABSTRACT:
A filtering face mask that has a mask body and an exhalation valve. The mask body is adapted to fit over the nose and mouth of a wearer. The exhalation valve is attached to the mask body and has a valve seat that includes a seal surface and an orifice that is circumscribed by the seal surface. The valve also has a single flexible flap that has a fixed portion and a free portion and first and second opposing ends. The first end of the single flexible flap is associated with the fixed portion of the flap so as to remain at rest during an exhalation, and the second end is associated with the free portion of the flexible flap so as to be lifted away from the seal surface during an exhalation. The second end also is located below the first end when the filtering face mask is worn on a person. The flexible flap is positioned on the valve seat such that the flap is pressed towards the seal surface in an abutting relationship therewith when a fluid is not passing through the orifice. A valve cover is disposed over the valve seat and comprises: an opening that is disposed directly in the path of fluid flow when the free portion of the flexible flap is lifted from the seal surface during an exhalation; a fluid impermeable ceiling that increases in height in the direction of the flexible flap from the first end to the second end; and cross members that are disposed within the opening of the valve cover.
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Moldex's Answer to Second Amended Complaint and Counterclaims (3M Company and 3M Innovative Properties Companyv.Moldex-Metric, Inc., Civil Action No. 03-5292 MJD/JGL, United States District Court for the District of Minnesota).
Louis M. Gerson Company, Inc.'s Answer and Counterclaims to Plaintiffs' Amended Complaint (3M Innovative Properties Company and 3M Companyv.Louis M. Gerson Co., Inc., Civil No. 05-CV-26 (MJD/JGL), United States District Court for the District of Minnesota).
Abstracts for JP 58-168314 and JP 55-168359.
Sample of Moldex 2300 Series Respiratory Mask.
Prior Art Statement.
Moldex's Revised Prior Art Statement of Feb. 21, 2006.
Abstract for Japanese 55-168359.
Abstract for Japanese 58-168314.
Ferguson Anthony B.
Grannis Vaughn B.
Japuntich Daniel A.
Seppala Harold J.
3M Innovative Properties Company
Hanson Karl G
Lewis Aaron J.
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