Straight comb technology on twisted molded/wired brush

Abstract

A cosmetic brush including a rod extending from a grip and a brush part defined proximate the opposite end of the rod. The brush part defines a plurality of brush bristles positioned in a twisted configuration and a plurality of comb bristles positioned in at least one non-twisted comb line.

What is claimed is: 
     
         1 . A cosmetic brush comprising:
 a rod extending from a grip; and   a brush part defined proximate an opposite end of the rod, the brush part defining a plurality of brush bristles positioned in a twisted configuration and a plurality of comb bristles positioned in at least one non-twisted comb line.   
     
     
         2 . The cosmetic brush according to  claim 1  wherein the comb bristles are manufactured with a different length, thickness and/or material than the brush bristles. 
     
     
         3 . The cosmetic brush according to  claim 1  wherein the rod is defined by a pair of wires which are twisted about one another. 
     
     
         4 . The cosmetic brush according to  claim 3  wherein the pair of wires, prior to twisting, define a gap therebetween. 
     
     
         5 . The cosmetic brush according to  claim 4  wherein the plurality of brush bristles and the plurality of comb bristles are positioned within the gap prior to twisting. 
     
     
         6 . The cosmetic brush according to  claim 5  wherein a subset of a plurality of brush bristles is positioned in between spaced apart ones of the comb bristles. 
     
     
         7 . The cosmetic brush according to  claim 6  wherein the degree of twisting of the wires is determined by the formula θ=(n*θ_s*1)/x_c, wherein θ stands for total degree of twist, n represents integer multiple of n̂th symmetry, θ_s stands for minimal angle to next rotational symmetry, l stands for total length of wire used in brush part, and x_c stands for the desired comb bristle distance. 
     
     
         8 . The cosmetic brush according to  claim 1  wherein the rod, brush bristles and comb bristles are molded as a unitary construction. 
     
     
         9 . The cosmetic brush according to  claim 8  wherein the rod is molded with the brush and comb bristles and thereafter twisted. 
     
     
         10 . The cosmetic brush according to  claim 1  wherein the rod supports a plurality of discs with each disc defining a keying surface relative to the rod, and wherein adjacent discs are configured with the comb bristles and brush bristles extending from the disc in relation to the respective keying surface such that the brush bristles of adjacent discs are positioned in the twisted configuration and the comb bristles of adjacent discs are positioned in the at least one non-twisted comb line. 
     
     
         11 . The cosmetic brush according to  claim 10  wherein the rod and discs have complementary octagonal configurations and the keying surface of each disc is one of the octagonal sides thereof. 
     
     
         12 . A method of manufacturing a cosmetic brush having a rod with a brush part defined therealong, the method comprising:
 associating a plurality of comb bristles in spaced relation to the rod with the rod in a non-twisted configuration;   associating a plurality of brush bristles relative to the rod between the comb bristles; and   twisting the rod until the comb bristles define at least one non-twisted comb line and the brush bristles are positioned in a twisted configuration.   
     
     
         13 . The method according to  claim 12  wherein the rod is defined by a pair of wires which are twisted about one another. 
     
     
         14 . The method according to  claim 13  wherein the pair of wires, prior to twisting, define a gap therebetween and the plurality of brush bristles and the plurality of comb bristles are positioned within the gap prior to twisting. 
     
     
         15 . The method according to  claim 14  wherein the degree of twisting of the wires is determined by the formula θ=(n*θ_s*1)/x_c, wherein θ stands for total degree of twist, n represents integer multiple of n̂th symmetry, θ_s stands for minimal angle to next rotational symmetry, l stands for total length of wire used in brush part, and x_c stands for the desired comb bristle distance. 
     
     
         16 . The cosmetic brush according to  claim 12  wherein the rod, brush bristles and comb bristles are molded as a unitary construction with the rod in the non-twisted configuration and thereafter the molded rod is twisted. 
     
     
         17 . A method of manufacturing a cosmetic brush having a rod with a brush part defined therealong, the method comprising:
 positioning a plurality of discs on the rod, each disc defining a keying surface relative to the rod, and wherein adjacent discs are configured with at least one comb bristle and a plurality of brush bristles extending from the disc in relation to the respective keying surface such that the brush bristles of adjacent discs are positioned in a twisted configuration and the comb bristles of adjacent discs are positioned in the at least one non-twisted comb line.