Dispensing – Inspection devices – Graduated transparent container or trap
Reexamination Certificate
2005-02-15
2005-02-15
Shaver, Kevin (Department: 3732)
Dispensing
Inspection devices
Graduated transparent container or trap
C222S159000, C222S256000, C222S260000, C222S387000
Reexamination Certificate
active
06854622
ABSTRACT:
Accessories are provided for preventing the ingress of air into a dispensing pump (P) and to align a discharge aperture of the dispensing pump with a target, such as an eye (E). A dip tube (10) is disclosed that is sealed with a sealing plug (22) to serve as a liquid reservoir for the dispensing pump. A pliant dip tube (100) is also disclosed to which is mounted an anchor (108) that causes the dip tube (100) to be responsive to gravitational orientation of a dispensing pump (P). In a third embodiment of the invention, a liquid reservoir (200) is formed with a recess (208) that is covered by a semi-permeable membrane (212). The semi-permeable membrane restricts flow in and out of the recess (208) to maintain a supply of liquid (L) about an end (210) of a dip tube (206). In a fourth embodiment, a safety is provided that comprises a safety ball (304), a blind aperture (306) defined in a nozzle cap (302), and a conical depression (308) defined in the dispensing pump (P). The safety ensures that the dispensing pump (P) is only actuated with the discharge aperture (300) of the dispensing pump (P) being oriented within a predetermined angular range of operation (α, β). In a fifth embodiment, a dispensing pump (P) includes a pump cylinder (400) that has one end thereof in close proximity to a base (402) of a liquid reservoir (404). A capillary action is created to cause liquid (L) to be drawn into the inlet opening (406) of the pump cylinder (400). Alignment aids (502; 600) are also disclosed to allow for proper alignment of a discharge aperture (500; 602) of a dispensing pump (P) with the eye (E) of a user.
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Cohen Ben Z.
Kelly Nigel
Cohen Ben Z.
Hoffmann & Baron , LLP
Shaver Kevin
Willatt Stephanie L.
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