Applicators
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 11, 2012
Grant Date -
Dec 2, 2010
app pub date -
Oct 28, 2008
filing date -
Oct 29, 2007
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An applicator for applying a substance in liquid, paste or gel form comprises a container (2), of which a portion is flexible and which includes an applicator portion, which is arcuate in cross-section and in which one or more first apertures (14) is formed. An elastic valve membrane (18) is connected to and overlies the applicator portion and one or more second apertures (22) are formed in it. The first apertures (14) are offset from the second apertures (22). The valve membrane (18) normally engages the applicator portion and the first apertures (14) are thus normally closed by the valve membrane (18) but the application of pressure to the flexible portion of the container produces an increase of the pressure of the container which results in the valve membrane (18) being forced away from the applicator portion against its elasticity. The second apertures (22) are slits, which are closed when the valve membrane (18) is in engagement with the applicator portion but which are open when the valve membrane (18) is forced away from the applicator portion.
First Claim
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International Classification(s)
Cited Art Landscape
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