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Japuntich Daniel A, Vaughn Grannis B, Seppala Harold J, Ferguson Anthony B: Unidirectional fluid valve. Minnesota Mining & Mfg, October 16, 1996: EP0737489-A2 (2 worldwide citation)

An exhalation valve 14 for a filtering face mask 10 has a flexible flap 24 that makes contact with a curved seal ridge 30 of a valve seat 26 when the valve 14 is in the closed position. The curvature of the seal ridge 30 corresponds to a deformation curve exhibited by the flexible flap 24 when secur ...


12
Braun David L: Soupape unidirectionnelle pour fluide, Unidirectional fluid valve. Minnesota Mining And Manufacturing Company, SMART & BIGGAR, October 29, 1991: CA1291393

Abstract of the Disclosure The exhalation valve of a respiratory face mask,while taking up only a small area, can affordextraordinarily low pressure drop for easy breathing ifconstructed with a valve seat having a seal edge thatdefines an orifice and also forms a parabola in the planebisecting the m ...


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Japuntich Daniel A, Grannis Vaughn B, Seppala Harold J, Ferguson Anthony B: Clapet dexpiration, Unidirectional fluid valve. Minnesota Mining And Manufacturing Company, SMART & BIGGAR, December 9, 1993: CA2134764

An exhalation valve (14) for a filtering face mask (10) has a flexible flap (24) that makes contact with a curved seal ridge (30) of a valve seat (26) when the valve (14) is in the closed position. The cur vature of the seal ridge (30) corresponds to a deformation curve exhibited by the flexible fla ...


14
Japuntich Daniel A, Grannis Vaughn B, Seppala Harold J, Ferguson Anthony B: Unidirectional fluid valve. Minnesota Mining & Mfg, March 29, 2006: EP1640043-A2

An exhalation valve 14 for a filtering face mask 10 has a flexible flap 24 that makes contact with a curved seal ridge 30 of a valve seat 26 when the valve 14 is in the closed position. The curvature of the seal ridge 30 corresponds to a deformation curve exhibited by the flexible flap 24 when secur ...


15
Michael John Cuppy: Vascular access device and method of using same. John F Klos Esq, Fulbright & Jaworski, September 16, 2004: US20040181192-A1

A vascular access device and method of using is disclosed. The vascular access device includes a housing defining a cavity and adapted to connect to a catheter. A self-sealing injection port and a subhousing are also provided. The subhousing may be movably connected to the housing so that a position ...


16
Daniel A Japuntich, Vaughn B Grannis, Harold J Seppala, Anthony B Ferguson: Unidirectional fluid valve. May 8, 2003: US20030084902-A1

An exhalation valve 14 for a filtering face mask 10 has a flexible flap 24 that makes contact with a curved seal ridge 30 of a valve seat 26 when the valve 14 is in the closed position. The curvature of the seal ridge 30 corresponds to a deformation curve exhibited by the flexible flap 24 when secur ...


17
Japuntich Daniel A, Grannis Vaughn B, Seppala Harold J, Ferguson Anthony B: Unidirectional fluid valve. Minnesota Mining And Manufacturing Company, sHANSON Karl G, December 9, 1993: WO/1993/024181

An exhalation valve (14) for a filtering face mask (10) has a flexible flap (24) that makes contact with a curved seal ridge (30) of a valve seat (26) when the valve (14) is in the closed position. The curvature of the seal ridge (30) corresponds to a deformation curve exhibited by the flexible flap ...


18
Japuntich Daniel A, Grannis Vaughn B, Seppala Harold J, Ferguson Anthony B: Unidirectional fluid valve.. Minnesota Mining & Mfg, October 4, 1995: EP0674535-A1

An exhalation valve (14) for a filtering face mask (10) has a flexible flap (24) that makes contact with a curved seal ridge (30) of a valve seat (26) when the valve (14) is in the closed position. The curvature of the seal ridge (30) corresponds to a deformation curve exhibited by the flexible flap ...


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