Pressure-responsive device and associated method of manufacture

Details Pressure-responsive device and associated method of manufacture Pressure-responsive device and associated method of manufacture

2011-03-01

2011-03-01

Bianco, Patricia M (Department: 3772)

Surgery

Liquid medicament atomizer or sprayer

C128S200230, C128S203120, C128S204230, C425S542000, C267S160000, C267S163000, C200S512000, C264S251000, C264S257000, C264S259000, C264S271100, C264S288400, C264S291000, C264S328100, C264S275000, C264S279000, C264S328900

Reexamination Certificate

active

07896001

ABSTRACT:
There is provided a pressure-responsive device (40) suitable for use in an inhaler, the pressure-responsive device (40) comprising a closed frame (42) over which is fixed a membrane (44), a tongue (46) being supported on the membrane (44). Two upstanding wings (50) are integrally moulded with the tongue (46) and incorporate square apertures (52). A method of manufacturing the pressure-responsive device (40) is also provided.

REFERENCES:
patent: 2715418 (1955-08-01), Van Derbeck
patent: 3590694 (1971-07-01), Prescott et al.
patent: 4218959 (1980-08-01), Numaguchi et al.
patent: 5027808 (1991-07-01), Rich et al.
patent: 5718327 (1998-02-01), Wu
patent: 6026808 (2000-02-01), Armer et al.
patent: 6341603 (2002-01-01), Howlett
patent: 6821467 (2004-11-01), Wolfe et al.
patent: 0558787 (1993-08-01), None
patent: WO 98/52634 (1998-11-01), None

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