Container with a filter

Details Container with a filter Container with a filter

2011-07-05

2011-07-05

Bomberg, Kenneth (Department: 3754)

Dispensing

Collapsible wall-type container

With wall-collapsing means

C222S105000, C222S107000, C222S109000, C222S189060, C222S189080, C222S212000, C222S215000, C222S420000

Reexamination Certificate

active

07971753

ABSTRACT:
A filter-equipped container which, particularly in a small-sized eyedrop bottle or the like, is capable of accurate dropping while preventing bubbles from being involved when a contents liquid is to be delivered through a delivery port. To solve such problem, a plug body12disposed in the mouth of a bottle10is provided with a delivery passage for delivering contents liquid received in the bottle10, the delivery passage being provided with a filter25. The filter25is composed of a filter film25afor filtering bacteria to prevent the latter from permeating from upstream to downstream as seen in the direction of delivery, and a contents liquid holding member25bof porous material that has microscopic pores, disposed upstream of the filter film25a, the contents liquid holding member25bbeing in planar contact with the filter film25a.

REFERENCES:
patent: 2715980 (1955-08-01), Frick
patent: 3240399 (1966-03-01), Frandeen
patent: 4020978 (1977-05-01), Szczepanski
patent: 5012956 (1991-05-01), Stoody
patent: 5497910 (1996-03-01), Meadows et al.
patent: 6030632 (2000-02-01), Sawan et al.
patent: 2002/0130139 (2002-09-01), Shiraishi et al.
patent: 2002/0153386 (2002-10-01), Uetake et al.
patent: 2711922 (1998-10-01), None
patent: 2002-80055 (2002-03-01), None
patent: 35-31876 (2004-05-01), None
patent: WO 90/04547 (1990-05-01), None

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