Dental floss dispensing and tensioning device

Toilet – Toothpick – Having thread holder

Reexamination Certificate

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Reexamination Certificate

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10890163

ABSTRACT:
A hand-held dental floss holder, dispenser, floss tensioning, and floss advancing device. The device is configured with one end being a handle and the other being a pair of tips across which dental floss is spanned for presenting to inter-dental spaces. An internal supply of dental floss is housed inside the handle. The floss passes from the supply, moves around floss guides, wraps one or more times around a free spooling clutch spool, exits the body of the device through an opening and is directed to and across the tips of the device and is guided back to a collection spool rotationally connected to a manually-activated one way thumbwheel. In a first position, the gearing of a gear assembly and an internal clutch spool assembly causes the floss to tension when the thumbwheel is turned. In a second position, the disengagement of gearing allows the clutch spool to spool freely, allowing fresh floss to be substituted for used floss, when the thumbwheel is turned.

REFERENCES:
patent: 861254 (1907-07-01), Braime
patent: 3734107 (1973-05-01), Thierman
patent: 5038806 (1991-08-01), Ewald
patent: 5060681 (1991-10-01), Westbrook et al.
patent: 5678578 (1997-10-01), Kossak et al.
patent: 5816271 (1998-10-01), Urso
patent: 5819769 (1998-10-01), Gutierrez
patent: 5823207 (1998-10-01), Bushman
patent: 6161556 (2000-12-01), Gutierrez
patent: 6874509 (2005-04-01), Bergman
patent: 2002/0078974 (2002-06-01), Kossak et al.
Printout of FLOSSBRITE website dated Mar. 21, 2004.

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