Disposable face mask with enhanced fluid barrier (US5724964)


	Parent Case:			RELATED APPLICATIONS "This application is a Continuation-in-Part application of pending U.S. patent application Ser. No. 08/168,090 filed Dec. 15, 1993, entitled Disposable Face Mask with Face Shield, of same assignee, now abandoned in favor of U.S. patent application Ser. No. 08/491,137 filed Jul. 17, 1995, and of U.S. patent application Ser. No. 08/278,930 filed Jul. 20, 1994, entitled Face Mask with Enhanced Seal and Method, of same assignee, now U.S. Pat. No. 5,553,608. This application is related to U.S. patent application Ser. No. 07/991,154 filed Dec. 16, 1992, entitled Disposable Face Mask, of same assignee, now U.S. Pat. No. 5,322,061."
	Designated Country:			BE CH DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Family:			Show 73 known family members
	First Claim: Show all 27 claims			What is claimed is: 1. A disposable face mask comprising: a filter body having an opening sized to cover the nose and mouth of a wearer, the body having top and bottom edges with the top edge arranged to extend across the nose of the wearer and the bottom edge arranged to extend under the chin of the wearer; the top edge having ends opposite from each other and the bottom edge having ends opposite from each other; first securing means attached to the filter body adjacent to each end of the top edge and arranged to extend generally about the back of the head of the wearer in an approximate linear continuation from the top edge, the first securing means for urging the top edge into tight engagement with the wearer to prevent fluid flow between the top edge and the wearer; second securing means attached to the filter body adjacent to each end of the bottom edge and arranged to extend generally over the top of the head of the wearer in an approximate linear continuation from the bottom edge, the second securing means for urging the bottom edge into tight engagement with the wearer to prevent fluid flow between the bottom edge and the wearer; a first strip of gasket-type sealing material disposed within the filter body adjacent to the opening and extending along the top edge; the first securing means and the second securing means each having a respective first end and a second end with the first end of the first securing means and the first end of the second securing means disposed adjacent to each other and the second end of the first securing means and the second end of the second securing means disposed adjacent to each other; a second strip of gasket-type sealing material disposed within the filter body adjacent to the opening and extending along the bottom edge; and the first sealing strip and the second sealing strip cooperating with each other to form a fluid barrier between the opening of the filter body and the face of the wearer.
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	Drawing Descriptions:			Show drawing descriptions
	Description:			Show description
	Forward References:			Show 24 U.S. patent(s) that reference this one

U.S. References:

Go to Result Set: All U.S. references | Forward references (24) | Backward references (76) | Citation Link

Buy PDF	Patent	Pub.Date	Inventor	Assignee	Title
	USD249072	1978-08	Revoir	American Optical Corporation	Disposable respiratory mask
	USD285733	1986-09	Cooper	Parmellee Industries, Inc.	Disposable face mask
	USD319111	1991-08	Sandel	BFD Industries, Inc.	Combined face mask and shield
	USD327141	1992-06	Hubbard et al.	Tecnol Medical Products, Inc.	Combined face mask and shield
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	US2012505*	1935-08	Goldsmith
	US2116241*	1938-05	Heuman
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	US2248477*	1941-07	Lombard
	US2462005*	1949-02	Schauweker
	US2494406	1950-01	Reitano		Protective mask
	US2556589*	1951-06	Le Duc
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	US4944294	1990-07	Borek, Jr.		Face mask with integral anti-glare, anti-fog eye shield
	US4945574	1990-08	Dagher	DHL Research and Development Corporation	Protective mask
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	US5020533	1991-06	Hubbard et al.	Tecnol, Inc.	Face mask with liquid and glare resistant visor
	US5025506	1991-06	Huang		One piece mask body having vertically stitched nose accomodating portion
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* some details unavailable

Foreign References:

Publication	Date	IPC Code	Assignee	Title
AU5033179	1979-03	A62B 7/10
CA1085259	1978-08	A61M 16/00	GRIMES, JERRY L.	GAS DELIVERY FACE SHIELD
EP0355444	1989-07	A41D 13/00	Herzberg, Wolfgang, Dr.med.	Face mask
EP0391726	1990-10	B01D 39/14	JOHNSON & JOHNSON MEDICAL	Improved filtration medium and face mask containing the same
EP0515986	1992-12	A41D 13/00	BETTER BREATHING, Inc.	Breathing mask
EP0606686	1994-01	A41D 13/00	TECNOL MEDICAL PRODUCTS, INC.	Disposable aerosol mask
EP3250336	1994-05
FR0867791	1941-09	D03D 15/08		Perfectionnements aux proc�d�s de tissage et produits nouveaux en r�sultant
FR2471792	1981-06	A41D 13/05	AIRFIL	PROCEDE DE FABRICATION DE MASQUES ANTI-POUSSIERES ET/OU ANTI-VAPEURS NOTAMMENT, A PARTIR D'AU MOINS UNE FEUILLE EN MATIERE FILTRANTE ET LES MASQUES AINSI OBTENUS
DE0655814	1938-01	A61B 19/00	MALWIN FEILER DR	Vorrichtung zum Schuetzen von AErzten, Patienten, Pflegepersonal u. dgl. gegen UEbertragung infektioeser Erkrankungen
DE0688227	1940-01
DE2717968	1977-12	A41D 13/11	American Optical Corp., Southbridge, Mass., US	Einmal-Atemmaske, Verfahren und Vorrichtung zum Herstellen derselben
NL7706660	1977-06	A41D 13/05	JOHNSON & JOHNSON TE NEW BRONSWICK, NEW JERSEY, VER. ST. V. AM.	GEZICHTSMASKER.
GB0004789	1912-02		HEVER, EAMONN	ELECTRONIC POST
GB0005104	1913-02		ASAHI KOGAKU KOGYO KABUSHIKI KAISHA	TELESCOPING TYPE OF ZOOM LENS AND CAM MECHANISM THEREFOR
GB0967455	1960-12
GB0892262	1963-03
GB1049604	1966-11
GB1433504	1973-04	A41D 13/05	DUPRE J-P M	FACE MASK AND PROCESS FOR MANUFACTURING A FACE MASK
GB1473924	1977-05	A41D 13/05	JOHNSON JOHNSON	SURGICAL FACE MASK
GB2028664	1980-03	A62B 23/00	SEPLAST	DOUBLE-WALLED FILTER MASK
GB1588442	1981-04	A41D 13/05	DEFENCE SECRETARY OF STATE FOR	FACE MASKS
GB2059782	1981-04	A41D 13/05	DRAGERWERK AG	BREATHING HALF-MASK FOR ONCE ONLY USE
GB2103491	1983-02	A62B 7/10	* AMERICAN OPTICAL CORPORATION	DISPOSABLE RESPIRATOR
WO8101019	1981-04	A41D 13/11	GIFFARD L	RESPIRATORY MASK AND FILTERING MATERIAL INCLUDED THEREIN
WO8103266	1981-11	A41D 13/00	COATES D	DISPOSABLE SURGICAL FACE MASK AND METHOD OF PRODUCING IT
WO8601734	1986-03	A62B 18/08	MINNESOTA MINING & MFG	RESPIRATOR HARNESS ASSEMBLY
WO8900874	1989-02	A62B 18/02	SOEDERBERG STIG	RESPIRATORY MASK
WO8910106	1989-11	A61F 9/04	RUSSELL JOHN PATRICK	FACE PROTECTOR
WO9108829	1991-06	A62B 23/02	GORE & ASS	NEW FILTER MEDIA FOR USE IN SURGICAL AND CLEAN ROOM MASKS