Brushing – scrubbing – and general cleaning – Implements – Brush or broom
Reexamination Certificate
1999-09-30
2001-09-11
Spisich, Mark (Department: 1744)
Brushing, scrubbing, and general cleaning
Implements
Brush or broom
C015S143100, C016S430000
Reexamination Certificate
active
06286173
ABSTRACT:
BACKGROUND
1. Field of Invention
My invention relates to improvements in toothbrushes of a type of toothbrush having one head that is commonly and presently in use by humanity.
2. Description of Prior Art
Grocery stores, pharmaceutical stores and supermarkets display for sale the type of toothbrush having only one head, and having a nonslip handle for the expensive toothbrushes. The brushes and the head is about the same in width. The width of the brushes or the head can cover at least one row of teeth in a single horizontal stroke. To cover both the upper row and lower row of the teeth requires two horizontal strokes. Thus there is a need for a toothbrush with sufficient quantity of brushes to cover simultaneously both the upper and lower rows of the teeth in a single stroke. The numerous strokes required by the one head toothbrush to clean all the teeth in a mouth also produce numerous chances to injure the gums and other parts inside the mouth.
Besides the numerous strokes required by the one head toothbrush to clean all the teeth, a major cause of injury inside the mouth is an inefficient clumsy hold of the handle. Even the expensive nonslip handle still needs a strong firm grasp by all fingers and thumb to effectively hold. Thus all the fingers and the thumb are fully occupied with holding the handle for fear of loose holds or of dropping the toothbrush, instead of focusing only to precisely controlling and safely guiding the brushes to clean the teeth inside the mouth. The inefficient and clumsy hold by all the fingers and the thumb to the handle results to wild uncontrolled assaults to the gums, the teeth and other parts inside the mouth. Thus there is a need for a toothbrush handle that gives a perfect hold anytime, to a light grasp by only three fingers while letting the thumb and forefinger free to precisely control and safely guide the brushes in cleaning the teeth inside the mouth.
In addition to the one head toothbrush with the nonslip handle, many inventors created several types of toothbrushes, all of which have one thing in common; they are all very costly to manufacture. The production costs are the cost of many different materials and labor to make many different parts, in many processes and procedures ending in assembly work and finally to jacked up sale prices beyond reach of most consumers. And most if not all of these articles fail to clean the teeth after repeated use specially under wet or slippery conditions. U.S. Pat. No. 4,048,690 Wolfson (1977) is a rotary toothbrush with twin heads; U.S. Pat. No 05,499,421 Brice (1996) is another toothbrush with angled and movable twin heads; U.S. Pat. No. 5,517,713 Hadcock (1996) is a toothbrush with a sure-grip handle that can not give the perfect hold by the light grasp of only three fingers that my 2-head toothbrush with surehold handle can give.
The following description and accompanying illustrations apply to my improvements upon the one head toothbrush with nonslip handle, with which my 2-head toothbrush with surehold handle is similarly made of rigid thermoplastic and synthetic brushes without the nonslip unnecessary material, but radically differ in everything else. All the toothbrushes heretofore known suffer from a number of disadvantages:
(a) Their sale prices are too expensive and not affordable by end users.
(b) Their manufacturing costs are uneconomically sound due to high costs of labor and materials in making and assembling many different parts that used many different processes and procedures.
(c) They are not easy to produce.
(d) They require too many strokes to cover and clean all the teeth thus they produce too many chances of injuring the gums and other parts inside the mouth.
(e) They take a lot of time and effort to use due to one stroke can only cover one row of teeth.
(f) They are difficult to use requiring the clumsy hold by all the fingers and the thumb in order to hold, resulting to wild uncontrolled assault to the gums and to the other parts inside the mouth.
(g) They have insufficient quantity of brushes to last longer after a repeated use without permanently bent brushes.
(h) They can not maintain a strong clean teeth for a long time without injuries inside the mouth due to too many strokes, insufficient brushes to do the cleaning of the teeth, poor control and guidance of the brushes and the head inside the mouth due to the inefficient clumsy hold by all the fingers and the thumb.
(i) They do not satisfy the need for an inexpensive, safe, fast, easy to use in wet or slippery conditions, reliable, durable, high quality, highly efficient toothbrush.
OBJECTS AND ADVANTAGES
Accordingly, several objects and advantages of my 2-head toothbrush with surehold handle are:
(a) to provide an inexpensive toothbrush affordable by most humanity.
(b) to provide minimized manufacturing expenses in producing a high quality toothbrush of only one piece thermoplastic formable plastic and synthetic brushes with no detachable and moving parts to eliminate expenses on other materials, labor, and processes.
(c) to provide an easy to produce toothbrush without costly processes, nonslip coating materials, parts to make with different materials, and without any assembly works.
(d) to provide a toothbrush requiring less strokes to clean the teeth resulting to less chances of injuring the gums and other parts inside the mouth.
(e) to provide a toothbrush with sufficient quantity of brushes to cover in a single stroke both at the same time, the upper and lower rows of the teeth, thus clean all the teeth at less time and effort.
(f) to provide a toothbrush that is easy to use by having a handle with a perfect hold by only three fingers thus letting the thumb and the forefinger to precisely control and safely guide the brushes in cleaning all the teeth in the mouth, faster and with less strokes.
(g) to provide a toothbrush with sufficient quantity of brushes having optimized coverage in width, to clean the teeth without permanently bent brushes after repeated use.
(h) to provide a toothbrush that can maintain a strong clean teeth for years without injuries inside the mouth due to too many strokes and with sufficient quantity of brushes to clean the teeth with less strokes; and with the precise control and safe guidance of the brushes in the mouth, by the thumb and forefinger while the other three fingers hold perfectly the toothbrush handle with a light grip.
(i) to provide a toothbrush that satisfies the need for an inexpensive, safe, fast, easy to use in wet or slippery conditions, reliable, durable, high quality, and high efficiency toothbrush.
Further objects and advantages are to provide a toothbrush that is easy and convenient for use by lefthanded or righthanded users due to the three holes that can be entered at both ends for the perfect hold of the handle; the handle that gives the perfect hold by the light grip even by athritic fingers; with a one-piece construction or molding with no attachments or movable parts. Still further objects and advantages will become apparent from a consideration of the ensuing description and drawings.
REFERENCES:
patent: D. 324455 (1992-03-01), Fasitta et al.
patent: 2603865 (1952-07-01), Sneed
patent: 340976 (1920-09-01), None
patent: 642976 (1928-09-01), None
patent: 2548528 (1985-01-01), None
patent: 127777 (1919-06-01), None
patent: 5-168526 (1993-07-01), None
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