Method of making brushes, and brushes thus made

Details Method of making brushes, and brushes thus made Method of making brushes, and brushes thus made

1986-05-29

1987-08-18

Eley, Timothy V.

Brush, broom, and mop making

Processes

15167R, 132 89, A61C 1500

Patent

active

046872574

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

1. Field of the Invention
This invention relates to a method of making brushes for cleaning preferably bacteria-polluted surfaces, particularly the skin, gums or teeth, in which the body of the brush shall be provided with a great many bristles designed to collectively form a uniformly distributed covering on the brush body or parts thereof. The invention also relates to brushes made by the novel method.
2. Related Art
In many cases, it has proved very difficult to apply the bristles of the brush to the brush body in a rational and besides durable manner. These problems are particularly serious where small brushes are concerned, which are designed for cleaning the skin, gums or teeth, because relatively small brush bodies and bristles are required for such brushes. Attempts to secure small bristles by gluing to small brush bodies have not been very successful.


SUMMARY OF THE INVENTION

The present invention aims at eliminating this problem and providing a novel method that permits applying the bristles in a very rapid and solid manner to the brush body even though the body and the bristles are very small. This aim is achieved by the invention substantially in that the novel inventive method comprises the features defined by appended claim 1.
Furthermore, the invention has the purpose of providing an advantageous brush made by the method according to the invention.


BRIEF DESCRIPTION OF THE DRAWINGS

The invention is elucidated more in detail below with reference to the accompanying drawings in which:
FIG. 1 diagrammatically illustrates the method of the invention;
FIG. 2 illustrates a finished brush made by the method of the invention;
FIG. 3 illustrates an enlarged section of the brush shown in FIG. 2;
FIG. 4 illustrates a section on line IV--IV in FIG. 2;
FIG. 5 illustrates a brush of alternative design; and
FIG. 6 illustrates a section on line VI--VI in FIG. 5.


DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The method of making a brush, which is illustrated in FIG. 1, serves to make a relatively small brush for brushing the gums and teeth. The brush comprises a body 1 and a great number of bristles 2. The body 1 to at least the major part consists of polyamide material or has a surface 3 of polyamide material, and bristles 2 of the brush also consist of polyamide material. In this instance, the body 1 suitably is 30-70 mm, preferably about 50 mm, long and at its widest part about 6 mm wide and at its thickest part about 2 mm thick. The body 1 has an elongated and tapering apex 4 which suitably constitutes the major part of the body 1. The bristles 2 of the brush are of a length of approximately 0.5-2 mm (the bristles may be of equal length or of different lengths) and the thickness of the bristles 2 is essentially less than the length thereof. These small bristles 2 are designed to be applied to the relatively small brush body 1 in a rational and extremely solid manner.
FIG. 1 diagrammatically illustrates how the method of the invention is carried out. If necessary, the brush body 1 at station 5 is dipped into water 6 in its entire length for moistening of the entire body 1, thus making it possible for the surface 3 thereof to become current-conductible. The body 1 is then moved to station 7 where it is dipped into a water-soluble organic acid 8, preferably formic acid.
At station 7, only those parts of the body 1, that is its apex 4, to which bristles shall be applied, are submerged. The water-soluble organic acid causes the surface 3 of the brush body 1 to be dissolved. At the following station 9 the body 1 with the surface 3 in dissolved state is held over a container 10 with an electrode 11 at its bottom, a larger number of bristles 2 and a grid 12 at its top, having such a mesh width that the bristles 2 can pass therethrough. The bristles 2 consist of preferably the same polyamide material as the surface 3 of the brush body 1 (or possibly as the entire brush body), and the bristles lie in a fully loose state in the container 10.
The electrode 11 is connected to

REFERENCES:
patent: 3939520 (1976-02-01), Axelsson
patent: 4008727 (1977-02-01), Thornton
"Idea Exchange", Modern Plastics International, Jul. 1980, p. 17.

Affiliated with

Also associated with

Rating

Method of making brushes, and brushes thus made does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making brushes, and brushes thus made, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making brushes, and brushes thus made will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1113681