Brush with universal joints
OwnerHorng Y. Cheninventor
Life of this patent
Estimating the term…
Abstract
A brush divided into three sections and four independent pieces, is joined by many alternative joints. At each joint the brush can be bent upward or downward or turned to any direction to achieve some special functions of brushing or cleaning in a limited working space for which the conventional brush can not attain.
Claims10
A toothbrush comprising a handle, a neck portion including a rear main brush portion, and two equally divided smaller front brush portions, said front and main brush portions having bristles extending downwardly therefrom, said front brush portions being about 1/4 of the length, in the axial direction, of the main brush portion, the main brush portion being about 3/4ths the length of the front and rear brush portions combined, each of the two smaller front brush portions having a joint to couple with the main brush body so that said small brush portions can be pivoted upwardly and downwardly or turned outwardly and inwardly, and a joint connected between the handle portion and the neck portion to allow the brush body to be pivoted or turned in any direction so as to be able to clean the hard-to-get-at areas of the teeth, thus increasing the brushing and cleaning efficiency of the toothbrush.
Dependencies are inferred from the claim text.