US2093383A - Tooth brush - Google Patents

Description

I Sept. 14, 1937. M. RUDOF ET AL TOOTH BRUSH Filed Oct. 15, 1935 Patented Sept. 14, 1937 'i UNiTED s'rArss ars'i' TOOTH BRUSH Morris Rudof and Lester V. Lyon, Los Angeles, Calif.; said Lyon assignor to said Rudof Application October 15, 1935, Serial No. 45,086

2 Claims. (01. 15167) This invention relates to a tooth brush and serted in a bore 14 extending transversely of the more particularly pertains to tooth brushes of head I, and are tightly engaged therein with the type set forth in United States Patent Numthe side members disposed in opposed parallel reber 1,967,783, issued to us July 24, 1934, embodylation thus forming a brush head of substantially ing a substantially U-shaped head portion fitted U-shape with the members B-C constituting the with tufts of bristles projecting inwardly toward side portions and the head i constituting the coneach other from each of the side members therenection portion. of, and also fitted with tufts of bristles project Previous to assembling the side members B ing from the connected portion of the head whereand C on the handle head i the side members by on manipulating the brush astride the teeth and the head are. each fitted with a series of 1 bristles will engage the anterior, interior and edge bristle tufts; the tufts on the head 1 comprising surfaces of the teeth. a series of rows of tufts l5 and those on the side An object of the invention is to provide an armembers B and C consisting of rows of tufts l6; rangement in a brush of the above character the head i also carrying a series of end tufts ll whereby the bristles protruding from the side poron its forward end which latter tufts are of 15 tions of the brush head are so arranged as to greater length than the tufts l5 rearwardly effect a massaging action on the gums, and also thereof as particularly shown in Fig. 2, so that provide an arrangement of end bristles adapted the tips of the tufts l'l will project beyond the for engagement with the rear faces of end molars. tips of the tufts l5.

Another object is to provide a simple con- The bristle tufts it on the side members B 20 struction in the brush head whereby assemblage and C are arranged in rows and incline upwardly of the brush is facilitated. toward the under side of the head i with the tufts With the foregoing objects in View together on the member B terminating inslightly spaced with such other objects and advantages as may relation to the tufts on the member C and with subsequently appear, the invention resides in the the uppermost row of the tufts IS on the mem- 25 parts and in the combination, construction and bers BC terminating substantially on theplane arrangement of parts hereinafter described and of the rearwardmost tufts of bristles !5 on the claimed, and illustrated by way of example in head I. The elongated bristle tufts ll are arthe accompanying drawing in which: ranged on the head 1 to project downwardly in 0 Fig. 1 is a plan view of the brush as seen from front of the outermost tufts of the upwardly inthe under side thereof; clined bristles it as particularly shown in Fig. 3. Fig. 2 is a view in section and elevation taken By thus arranging the bristles, the brush is on the line 22 of Fig. 1 as seen in the direction adapted to be readily disposed astride the teeth indicated by the arrows; so as to bring the bristles It in juxtaposition Fig. 3 is a detail in cross section viewed on the with the anterior and interior surfaces of the 35 line 33 of Fig. 2 in the direction indicated by teeth and with the bristles l5 in position for enthe arrows; gagement with the edge portion of the teeth;

Fig. 4 is a perspective view of one of the brush while the end tufts I! are adapted for engageside members showing it detached; ment with the back surfaces of end teeth, such as Fig. 5 is a detail in perspective of the head end the molars. 4O portion of the tooth brush handle; and By disposing the bristles it at upward in- Fig. 6 is a perspective View of the tooth brush clinations the lowermost tufts thereof when disas viewed from the under side thereof. posed astride the teeth tend to bend upwardly Referring to the drawing more specifically, A when brought against the gums so that in maindicates the handle of the tooth brush which nipulation of the brush by a reciprocal movement 45 embodies a head portion 1 from which leads a longitudinally of a row of teeth the side portions neck portion 8 connecting with a shank 9. of the outer end of the tufts It will effect a In carrying out the invention the head portion massaging action on the gums. Furthermore by I is fitted with a pair of side members B and C thus presenting the side portions of the bristles each of which embodies aback portion it formed to the gums the possibility of puncturing the 50 with an upwardly and inwardly extending neck gums, as sometimes occurs on presenting bristles ll terminating in a shank l2 here shown as endwise thereto, is obviated. cylindrical and projecting at right angular rela- By employing the assemblage of the brush head tion to the back portion In. as here shown the provision of the arrangement The shanks l2 of the side members B-C are inof bristles set forth is easily accomplished since 55 the bristling of the side membersB-C and of the head 1 may be effected before assemblage thereof.

We claim:

1. In a tooth brush, a handle having a head portion, a series of tufts of bristles on said head portion, a pair of side members carried on said head portion extending from opposite sides thereof, and a series of tufts of bristles on each of said side portions projecting at an upward incline inwardly toward each other and toward the bristlesoon said head portion.

2. In a tooth brush, a handle having a head portion, a series of tufts of bristles on said head portion including outer end tufts of greater length than adjacent tufts, a pair of side members carried on said head portion extending from opposite sides thereof, and a series of tufts of bristleson 7 each of said side members projecting up-V wardly at an incline inwardly toward each other

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