Surgery – Respiratory method or device – Means for removing substance from respiratory gas
Reexamination Certificate
2008-09-30
2008-09-30
DeMille, Danton (Department: 3771)
Surgery
Respiratory method or device
Means for removing substance from respiratory gas
C128S206120, C128S207120
Reexamination Certificate
active
09680465
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 positioned on the mask body substantially opposite to a wearer's mouth. The exhalation valve comprises a valve seat that has a seal surface, an orifice that is circumscribed by the seal surface, and cross members that extend across the orifice to create a plurality of openings within the orifice. The valve also includes 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 being 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 would normally assume a flat configuration when no forces are applied to it, but the flexible flap has a curved profile when viewed from a side elevation and is pressed towards the seal surface in an abutting relationship therewith when a fluid is not passing through the orifice.
REFERENCES:
patent: 249557 (1881-11-01), Truesdell
patent: 812706 (1906-02-01), Warbasse
patent: 958569 (1910-05-01), Venner
patent: 1077272 (1913-11-01), Graybill et al.
patent: 1158780 (1915-11-01), Bolton
patent: 1287419 (1918-12-01), Perry
patent: 1288856 (1918-12-01), Farr
patent: 1292115 (1919-01-01), Soderling
patent: 1701277 (1929-02-01), Shindel
patent: 1813915 (1931-07-01), Cover
patent: 1867478 (1932-07-01), Stelzner
patent: 2000064 (1935-05-01), Cover
patent: 2053896 (1936-09-01), Cover
patent: 2065304 (1936-12-01), Cover
patent: 2105183 (1938-01-01), Cover
patent: 2106795 (1938-02-01), Cover
patent: 2112270 (1938-03-01), Cover
patent: 2120230 (1938-06-01), Cover
patent: 2120231 (1938-06-01), Cover
patent: 2206061 (1940-07-01), Soderling
patent: 2216619 (1940-10-01), Lehmberg
patent: 2227959 (1941-01-01), Cover
patent: 2229838 (1941-01-01), Cover
patent: 2264829 (1941-12-01), Cover
patent: 2284949 (1942-06-01), Cover
patent: 2320770 (1943-06-01), Cover
patent: 2348108 (1944-05-01), Bulbulian
patent: 2619085 (1952-11-01), Bradley
patent: 2830584 (1958-04-01), Hollmann et al.
patent: 2864394 (1958-12-01), Hempel
patent: 2874693 (1959-02-01), Matheson
patent: 2881795 (1959-04-01), Waldenmaier et al.
patent: 2893387 (1959-04-01), Gongoll et al.
patent: 2895472 (1959-07-01), Matheson
patent: 2898908 (1959-08-01), Sovinsky
patent: 2999498 (1961-09-01), Matheson
patent: 3191618 (1965-06-01), McKim
patent: 3276445 (1966-10-01), Langdon
patent: 3295547 (1967-01-01), Scaramucci
patent: 3460168 (1969-08-01), De Bruyne
patent: 3460558 (1969-08-01), Johannisson
patent: 3550588 (1970-12-01), Stahl
patent: 3568712 (1971-03-01), Rinehart
patent: 3807430 (1974-04-01), Keller
patent: 3807444 (1974-04-01), Fortune
patent: 4022114 (1977-05-01), Hansen, III et al.
patent: 4411603 (1983-10-01), Kell
patent: 4414973 (1983-11-01), Matheson et al.
patent: 4453544 (1984-06-01), Silverthorn
patent: 4456016 (1984-06-01), Nowacki et al.
patent: 4573464 (1986-03-01), Yo
patent: 4630604 (1986-12-01), Montesi
patent: 4631376 (1986-12-01), Leone
patent: 4723542 (1988-02-01), Giffard
patent: 4749003 (1988-06-01), Leason
patent: 4759758 (1988-07-01), Gabbay
patent: 4827924 (1989-05-01), Japuntich
patent: 4838262 (1989-06-01), Katz
patent: 4844979 (1989-07-01), Strobel et al.
patent: 4850346 (1989-07-01), Michel et al.
patent: 4873972 (1989-10-01), Magidson et al.
patent: 4883547 (1989-11-01), Japuntich
patent: 4888009 (1989-12-01), Lederman et al.
patent: 4934362 (1990-06-01), Braun
patent: 4958633 (1990-09-01), Angell
patent: 4972765 (1990-11-01), Dixon
patent: 4974586 (1990-12-01), Wandel et al.
patent: 4981134 (1991-01-01), Courtney
patent: 5036806 (1991-08-01), Rarick
patent: 5099885 (1992-03-01), Nilsson
patent: 5127397 (1992-07-01), Kohnke
patent: 5255687 (1993-10-01), McKenna
patent: 5295478 (1994-03-01), Baldwin
patent: 5325892 (1994-07-01), Japuntich et al.
patent: 5346375 (1994-09-01), Akiyama et al.
patent: 5413142 (1995-05-01), Johnson et al.
patent: 5509436 (1996-04-01), Japuntich et al.
patent: 5687767 (1997-11-01), Bowers
patent: 6047698 (2000-04-01), Magidson et al.
patent: RE37974 (2003-02-01), Bowers
patent: 6843248 (2005-01-01), Japuntich et al.
patent: 6854463 (2005-02-01), Japuntich et al.
patent: 231777 (1964-02-01), None
patent: 1132030 (1982-09-01), None
patent: 1213249 (1966-03-01), None
patent: 2643853 (1978-03-01), None
patent: 3609-097 (1987-09-01), None
patent: 40 29 939 (1992-03-01), None
patent: 0 252 890 (1988-01-01), None
patent: 0284353 (1988-09-01), None
patent: 0367383 (1990-05-01), None
patent: 776709 (1934-11-01), None
patent: 791607 (1935-12-01), None
patent: 1209475 (1959-09-01), None
patent: 1372040 (1964-03-01), None
patent: 847513 (1960-09-01), None
patent: 2072516 (1981-10-01), None
patent: 55-168359 (1980-12-01), None
patent: 0013268 (1983-01-01), None
patent: 58-168314 (1983-11-01), None
patent: 58-170465 (1983-11-01), None
patent: 1-242075 (1989-09-01), None
patent: 227853 (1969-02-01), None
patent: 0903646 (1982-02-01), None
patent: WO93/24181 (1993-12-01), None
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
DeMille Danton
Hanson Karl G.
LandOfFree
Fibrous filtration face mask having a new unidirectional... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fibrous filtration face mask having a new unidirectional..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fibrous filtration face mask having a new unidirectional... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3912123