Twin-brushes rotary toothbrush

Claim 2

A twin-brushes rotary toothbrush comprising: A. a horizontally longitudinally extending elongate tubular barrel having a fore-end and a rear-end, and longitudinally horizontally extending elongate topside and bottomside; B. handle means at the barrel rearward portion; C. a pair of transversely separated upright rotary brushes, each of said brushes comprising an upright support rotatably secured to the barrel forward portion with a common axle means lying along a horizontal transverse-axis whereby the two brushes are rotatable in co-angular unison about said transverse-axis, each of said rotary brushes comprising an array of horizontal bristles extending transversely inwardly from the brush upright support toward the barrel, the free-ends of the bristles lying along an upright imaginary-plane located proximally outwardly said barrel; and D. bi-directional powering means for imparting coangular rotation to the rotary brushes in pulsating alternating angular directions about said horizontal transverse-axis, said bi-directional powering means extending along said barrel.

Claim 3

The twin-brushes toothbrush of claim 1 wherein the handle is upright and extends downwardly from the barrel; wherein the barrel bottomside adjacent the handle is provided with a longitudinally extending elongate bottom-slot; wherein there is an upright trigger disposed within the barrel and extending downwardly through said elongate bottom-slot; wherein the upright support for each rotary brush is of a circular disc-like form and the bristles array is arranged in a concentric rings loci pattern and having said transverse-axis as the geometric center; and wherein the bi-directional powering means is located inside the barrel and comprises a longitudinally extending horizontal rack attached to the trigger and the rack also cooperating with a pinion means on the said common axle means for rotating said pair of brushes, the rearward portion of said rack being against spring means located inside said tubular barrel.

Claim 4

The twin-brushes rotary toothbrush of claim 2 wherein the forward portion of the barrel topside and bottomside between said pair of brushes are each provided with stationary brushes, the top-brush extending upwardly from the barrel topside and the bottom-brush extending downwardly from the barrel bottomside, the upright length of the stationary brushes' upright bristles being sufficiently arrested that it is less than the distance of that most remote circular locus of the rotary brush from said horizontal transverse-axis.

Claim 5

The twin-brushes rotary toothbrush of claim 3 wherein the array of concentric rings bristles for each rotary brush are further arranged in a plurality of distinct cusp-shaped fields.

Claim 6

The twin-brushes rotary toothbrush of claim 2 wherein the handle includes a fluid reservoir, there being elongate plumbing including a trail-end communicating with said reservoir and at least one lead-end extending transversely toward the rotary brush bristles.

Claim 7

The twin-brushes rotary toothbrush of claim 5 wherein the elongate plumbing medial portion lies along the tubular barrel and supported therewithin by barrel internal clips, said plumbing being forwardly bifurcate to provide two lead-ends.

Claim 8

The rotary toothbrush of claim 6 wherein the handle includes a finger-operated plunger located beneath said trigger, said plunger being adapted to inject fluid from said reservoir and to squirt said fluid from the plumbing lead-ends; and wherein the handle is provided with a removable plug for introducing hygenic fluid into the handle reservoir.

Claim 9

The twin-brushes rotary toothbrush of claim 1 wherein the bristles array for each rotary brush is arranged in a concentric rings loci pattern with the said transverse-axis as the geometric center, said bristles array being further confineably arranged in a plurality of cusp-shaped fields.

Claim 10

The twin-brushes rotary toothbrush of claim 8 wherein central bristles of each concentric rings locus are slightly transversely lengthier than are the flanking bristles; and wherein an outer circular locus between the cusp-shaped fields is equipped with bristles to retard outward flow of the hygenic fluid.

Claim 11

The twin-brushes rotary toothbrush of claim 1 wherein the barrel bottomside nearer the handle means than to the transverse-axis is provided with a longitudinally extending elongate bottom-slot; and wherein there is a trigger extending downwardly through the said elongate bottom-slot; and wherein the bi-directional powering means comprises a longitudinally extending rack located inside the barrel and attached to said trigger, the rack forward portion cooperating with a pinion means on the said common axle means.

Claim 12

A twin-brushes rotary toothbrush comprising: A. a horizontally longitudinally extending elongate barrel having a fore-end and a rear-end, and longitudinally horizontally extending elongate topside and bottomside; B. handle means at the barrel rearward portion; C. a pair of separated upright rotary brushes, each of said rotary brushes comprising an upright support rotatably secured to the barrel forward portion with a common axle means whereby the two brushes are rotatable in co-angular unison, each of said rotary brushes comprising an array of horizontal bristles extending from the brush upright support toward and facing the bristles of the other rotary brush, whereby simultaneously the bristles of one rotary brush are adapted to sweep the bucal sides and the bristles of the other rotary brush are adapted to sweep the lingual sides of the upper and lower rows of the operator's teeth; D. bi-directional powering means for imparting coangular rotation to the rotary brushes in pulsating alternating angular directions, said bi-directional powering means extending along said barrel; and E. horizontally extending brushing surfaces located between the upright rotary brushes and parallel to the common axle means for contacting the occlusial sides of the upper and lower teeth.

Claim 13

A twin-brushes rotary toothbrush comprising: A. a horizontally longitudinally extending elongate barrel having a fore-end and a rear-end, and longitudinally horizontally extending elongate topside and bottomside; B. handle means at the barrel rearward portion; C. a pair of separated upright rotary brushes, each of said rotary brushes comprising an upright support rotatably secured to the barrel forward portion with a common axle means whereby the two brushes are rotatable in co-angular unison, each of said rotary brushes comprising an array of horizontal bristles extending from the brush upright support toward and facing the bristles of the other rotary brush, whereby simultaneously the bristles of one rotary brush are adapted to sweep the bucal sides and the bristles of the other rotary brush are adapted to sweep the lingual sides of the upper and lower rows of the operator's teeth; D. bi-directional powering means for imparting coangular rotation to the rotary brushes in pulsating alternating angular directions, said bi-directional powering means extending along said barrel; and E. horizontally extending brushing surfaces located between the upright rotary brushes and parallel to the common axle means for contacting the occlusial sides of the upper and lower teeth.

Claim 14

The twin-brushes rotary toothbrush of claim 11 wherein the handle includes a fluid reservoir, there being elongate plumbing including a trail-end communicating with said reservoir and at least one lead-end extending transversely toward the rotary brush bristles.