Dental floss holder

Details Dental floss holder Dental floss holder

1989-04-20

1990-05-15

Phan, Hien H.

Severing by tearing or breaking

Severing by manually forcing against fixed edge

With housing for work supply

225 46, 225 51, 225 77, 242138, B26F 300, B65H 3500

Patent

active

049250736

ABSTRACT:
A dental floss holder is in the form of a box with a drawer in it. The bottom of the drawer includes a hub which is spring biased to push a bobbin mounted thereon toward an opposite side of the box. The bias is such that the bobbin drags with a predetermined force on an opposite side of the box to maintain tension in the floss. A result is that the bobbin does not unwind while in the holder, thereby precluding a snarled floss line. Also, the tension gives a smooth "pull" which adds a "feel" of quality to the floss. The "feel" does not change as the diameter of the bobbin changes with either an exhaustion of floss or changes in the diameter of a full bobbin. The hub is mounted on a dome having sides with a shape which guides and directs any floss falling off the bobbin back onto it.

REFERENCES:
patent: 1454429 (1923-05-01), Dresser
patent: 1455673 (1923-05-01), Shalek
patent: 3246815 (1966-04-01), Aronson
patent: 4073419 (1978-02-01), Tarrson et al.

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