Patented Aug. 30, 1927. 1,640,607
UNITED STATES PATENT OFFICE.
CLYDE KITLEY, OF BERKELEY, CALIFORNIA.
Application filed June 7, 1926. Serial Mo. 114,180.
My invention relates to improvements in a holder for dental floss and the like whereby a strand of floss may be inserted and manipulated between the teeth of a. user. , 5 The primary object of my invention is to provide an improved holder for dental floss. . Another object is to provide an improved device whereby a strand of floss .may be readily stretched taut and inserted between 10 the teeth of a user for cleaning the adjacent surfaces of adjacent teeth.
A further object is to provide an improved device of the character described which will form convenient, efficient, and 15 sanitary holder for dental floss.
Another object is to.provide an improved holder which will facilitate the introduction and manipulation of a strand of floss between the teeth of a user. 20 A still further object is to provide an improved device of the character described .which is simple and economical in construction and which is efficient in operation.
I accomplish these and other objects by 25 means of the improved. device disclosed in the drawings forming. a part of the present specification wherein like characters, of. reference are used to designate similar, parts throughout said specification and drawings 30 and in which, .
Fig. 1 is a broken rear elevation of my improved dental floss holder;
Fig. 2 is a broken si.de elevation of the holder, and
35 Fig. 3 is a broken front elevation of the
floss supporting prongs showing the man-
: ner in which a strand of floss is extended
between the ends thereof, the figure being
drawn upon an enlarged scale.
40 - Referring to the drawings my improved
holder will, be seen to consist of a handle
: - formed from telescopic sections 1 and 2 one
end of 'which is reduced as at 3 to receive a
member 4 secured thereon in any suitable
45 manner as by a pin 6, said member being
provided with a pair of diverging .prongs
7 ancl 1' the ends of which are .offset as at
9 and provided with nobs 11.:
The telescoping portions of the handle sec50 tions 1 and 2 have oppositely disposed regis-' terrng notches 12 and 13 formed therein respectively, said notches combining, when the sections are assembled, to form bearings engaging the ends, of a shaft 14 extending 55 across the handle and arranged to receive a spool 16 of dental floss or the like. A
ratchet 17 is mounted within the handle upon one end of the shaft 1, said ratchet extending slightly outAvardly through a slot 18 formed in one side of the ;handle. A 60 pawl 19 is pivotally mounted within the . handle adjacent the ratchet and normally held in engagement therewith by a suitable spring 21, said pawl; being provided with an arm 22 extending outwardly through an 65 opening 23 formed in the handle whereby the paAvl may be moved to disengage the ratchet when desired.
One of the prongs 7 has a longitudinally disposed passage 24 formed therethrough, 70 said passage opening through the base of the member 4 into the handle and opening outwardly through the end of said prong 7. The opposite prong T has a notch 26 formed upon the side remote from the prong. 7, said 75 notch being arranged to: engage the end of a itrand 27 of dental floss extended outwardly from the spool 16 through the prong 7 and across the end thereof to the prong 7'. "....-.'.-... so
, In operation, the spool 16 is inserted into the handle by Separating the telescoping sections 1 and 2 and placing the spool onto the shaft 14, the shaft 14 then being placed in the notches of the section 1 and the section 85 ;2.moved onto the section 1 to engage and retain the shaft and spool. The strand of floss carried by. the spool is .threaded outwardly' through the end of the section 2 and the passage 24. . .: 90
When it is desired to- use the floss, the free end of the strand 27 is drawn across the space between the .ends of the prongs .1 and 7' and secured to the prong 7' in any convenient manner,.. preferably by forming a 95 knot in the end of the strand to be engaged by the notch 26. After the end of the strand 27 has been secured to the end.of the prong 7', the strand is drawn taut by-rotating the ratchet manually to rewind any slack .floss 100 which may have been .withdrawn from-the spool 16, the outwardly extending edge of: said ratchet: being engaged and moved by means of the thumb ;of the user, or in other suitable manner. In re winding, such slack 105 floss, the ratchet is arranged to move freely past the pawll9. When the: ratchet has been .moved, to tighten the. strand 27, said ratchet is engaged and held by the pawl 19, thereby maintaining the. strand in a taut HO condition extending across the ends of • the prongs 7 and 7'. The prongs are then in