Seal assembly for retractable instrument

Details Seal assembly for retractable instrument Seal assembly for retractable instrument

2007-02-01

2009-02-10

Le, Huyen (Department: 3751)

Coating implements with material supply

Projectable and retractable tool

With movable closure or gate

C401S107000

Reexamination Certificate

active

07488130

ABSTRACT:
A seal assembly for a retractable instrument having an applicator element is disclosed, the seal assembly comprising a base, at least two fingers attached to the base, and a sleeve surrounding the base. When the retractable instrument is in a retracted position, the sleeve constrains the fingers such that the fingers are in a fully closed state and seal the applicator element. Protraction of the base relative to the sleeve allows the fingers to open, thereby exposing the applicator element. Thus, the seal assembly opens to expose an applicator element such that the applicator element is in an application position; however, none of the elements of the seal assembly contacts the applicator element to transfer fluid from the applicator element, thereby eliminating potential degradation of the seal.

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