Dropper cap

Dispensing – With filter

Reexamination Certificate

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Details

C222S189070, C222S420000, C222S546000, C222S547000, C222S568000, C222S571000

Reexamination Certificate

active

06915927

ABSTRACT:
An improved dropper cap, for use in controlled dispensing of liquid from a container, comprises an antechamber, a baffle and an elongated nozzle. The nozzle may comprise a flared spout to ensure clean separation of the liquid from the dropper cap, reducing dripping and smearing of the liquid on the dropper cap, as well as precise dispensing of the liquid. The baffle physically prevents splashing of the liquid from the container, and includes openings to control the flow of liquid into the nozzle. The baffle and antechamber cooperate to draw back undispensed liquid from the nozzle and prevent spurting of the liquid from the container between uses. Further, the dropper cap is threaded to allow easy attachment and removal from the container.

REFERENCES:
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patent: 1255779 (1918-02-01), Oesch
patent: 3047195 (1962-07-01), Richmond
patent: 3926348 (1975-12-01), Lutzker
patent: 3980211 (1976-09-01), Owens
patent: 4531657 (1985-07-01), Saito et al.
patent: 4600131 (1986-07-01), Roof et al.
patent: 4928861 (1990-05-01), Schiemann
patent: 5246145 (1993-09-01), Leoncavallo et al.
patent: 5358151 (1994-10-01), Strasenburgh
patent: 5573144 (1996-11-01), Steib et al.
patent: 5938087 (1999-08-01), Randall
patent: 6045014 (2000-04-01), Marino
patent: 6045540 (2000-04-01), Cross

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