Toilet – Toothpick – Having thread holder
Patent
1993-09-15
1995-05-16
Hirsch, Paul J.
Toilet
Toothpick
Having thread holder
132323, A61C 1504
Patent
active
054151880
ABSTRACT:
A dispenser for dental floss and other flexible elongated materials (e.g., tape, strip, wire, etc.) capable of delivering material to the point of use under substantially constant tension. The dispenser comprises a delivery reel and a draw-in reel mechanically connected by driving means through a tension accumulator. The tension accumulator is a device comprising some means for storing energy of rotational movement (e.g. torsion spring, clock spring, etc.). Each of the reels is attached to one of the two one-way clutches so that the delivery reel can only rotate in the direction of unwinding the floss and the draw-in reel can only rotate in the direction of winding the floss on. A supply of dental floss is stored on the delivery reel and is extended under tension between the delivery reel and the draw-in reel by means of guides. Any forceful nonelastic elongation of the extended part of floss leads to unwinding a new portion of floss from the delivery reel and adding some energy to the tension accumulator; consequent release of the elongating force causes a portion of used floss of the same length to be wound on the draw-in reel by the energy freed from the tension accumulator. Such cycles of applying and releasing of the elongating force constitute continuous feeding of dental floss under tension.
REFERENCES:
patent: 2381530 (1945-08-01), Dembenski
patent: 4245658 (1981-01-01), Lecouturier
patent: 4518000 (1985-05-01), Leverette
patent: 5038806 (1991-08-01), Ewald
patent: 5060681 (1991-10-01), Westbrook et al.
patent: 5085236 (1992-02-01), Odneal et al.
patent: 5188133 (1993-02-01), Romanus
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