Brush for cleaning bottles

A bottle brush including an elongated flexible rod having a plurality of stiff bristles at one end for contacting inside walls and base inner surface of a baby bottle. Connecting structure is provided on an opposite end of the rod to be received by a receptacle of a portable, hand-held motor of a food mixer and rigidly locked thereto for rapidly rotating the rod and bristles to clean the inner surfaces of the baby bottle.

BACKGROUND OF THE INVENTION 
1. Field of the Invention 
This invention relates generally to bottle cleaning devices and more 
particularly, to bottle cleaning devices known as bottle brushes. 
2. Description of the Prior Art 
Bottle brushes have been designed mounted on metal handles which require 
the user to hold a jar or bottle in one hand and the bottle brush in the 
other thereby making its use cumbersome. The user must physically insert 
and rotates by hand the brush in an attempt to clean the inside surfaces 
of the bottle or jar. The effort is tiresome and in many cases the inner 
surfaces are not thoroughly cleaned. This can present a problem in those 
instances where the bottle is a bottle used for feeding babies and the 
remanent of content, a baby formula, can spoil. Contamination can occur 
when the bottle is again filled with formula and the content fed to a 
baby. 
U.S. Pat. No. 4,502,176 provides a bottle brush which can be attached to 
the center section of a double sink, thereby enabling an individual to 
wash bottles using one hand. But the individual still must physically 
place the bottle over the brush and rotate the bottle. This is no 
different than using a free brush when it comes to efficient and effective 
cleansing of the bottle. 
U.S. Pat. Des. No. 334,287 illustrates a power driven bottle brush which 
could provide a more effective means to clean bottles. However, the design 
of the brush limits its use to a special type of bottle in order for the 
brush to be effective as a cleaning instrument. The design also would 
appear to require the use of a specially designed driver necessitating the 
purchase of the driver of limited application and the brush. 
Accordingly, there exists the need of a bottle brush which will efficiently 
and effectively clean bottles, such as baby bottles, while avoiding manual 
manipulation of the brush and one which can be driven by universal readily 
available drivers. 
SUMMARY OF THE INVENTION 
The present invention comprises a flexible rod having a plurality of stiff 
bristles, preferably of nylon, at one end for contacting inside walls and 
base inner surface of a baby bottle. Connecting structure is provided on 
an opposite end of the rod to be received by a receptacle of a portable, 
hand-held food mixer and rigidly locked thereto for rapidly rotating the 
rod and the bristles to clean the inside walls and base inner surface of a 
baby bottle. 
The connecting structure is a universal coupler for connection to a mating 
coupler of a portable, hand held electric food mixer. 
One object of the present invention is to provide a bottle brush which may 
be attached to common, readily available drivers, such as portable 
electric mixers without modification to the driver. 
Another object is to provide a bottle brush which may be purchased separate 
from a specific driver. 
Yet another object is to provide a bottle brush which can be rotated by a 
portable electric mixer and easily attached to and removed from the mixer. 
Still another object is to provide time and labor saving apparatus for 
cleaning bottles.

DETAILED DESCRIPTION 
A bottle brush 10 embodying features of the present invention is 
illustrated in FIG. 1. The bottle brush 10 comprises an elongate flexible 
rod 12, preferably formed by twisting a plurality of small diameter wires 
14 together. The wires, of metal or plastic, may be wound or twisted about 
a central solid wire core (not shown). The wires preferably are of 
stainless steel to avoid corrosion. Fixed to one end 16 of the rod 12 are 
a plurality of bristles 18 which together form a cleaning head 20 of the 
brush 10. The bristles 18, preferably of Nylon, a trademark of DuPont, 
which is a highly elastic, very strong, synthetic material derived from 
coal, water and air, extend radially from the rod 12. The bristles 18 are 
secured to the rod 12 by interleaving them with the wires 14. The end 16 
of the rod 12 is bent into an "L" shaped configuration to enhance the 
cleaning effectiveness of the brush by contacting the inside surfaces of a 
bottle, particularly at the bottom thereof. 
Secured, as by welding, to an opposite end 22 of the rod 10 is a structure 
24 designed to fit into a receptacle of a portable, hand held electrically 
powered, motorized food mixer. The structure 24 includes depressions 26, 
radial extensions 28 and a flange 30 which acts as a stop to limit the 
insertion distance of the structure 24 into the receptacle of the mixer. 
The receptacle of the mixer includes inner structure which mates with 
depressions 26 and radial extensions 28 to lock the brush to the mixer and 
hold it in position as the brush is rapidly rotated by the motor of the 
mixer. 
The application of the present invention to clean bottles is illustrated in 
FIG. 2. The bottle brush 10 of the invention is shown inserted into a baby 
bottle 32 which is partially cut away at 34 to show the position of the 
brush. The end structure 24 is connected into a receptacle of a hand-held, 
portable, electrically powered unit 36 of a typical food mixer. Hand-held 
food mixers of the type referred to are to be found in many homes. 
Therefore it is unnecessary for an operator to purchase another driver to 
practice the invention. The unit 36 is battery operated , but is merely 
exemplary of other units which are a.c. powered. With the brush in the 
position shown, switch 38 is engaged to excite the motor and rapidly 
rotate the brush 10 to clean the inside surfaces of the bottle 32. As a 
result the surfaces of the bottle are rapidly and efficiently cleaned with 
little effort on the part of the operator. This is a marked difference to 
the laborious hand operated method of physically rotating the brush.