US2286913A

US2286913A - Paint mixer

Info

Publication number: US2286913A
Application number: US296382A
Authority: US
Inventors: John C Kelly; Earl R Brazie
Original assignee: Individual
Current assignee: Individual
Priority date: 1939-09-25
Filing date: 1939-09-25
Publication date: 1942-06-16
Anticipated expiration: 1959-06-16

Description

June 16, 1942. c, KELLY ETAL 2,286,913

PAINT MIXER Filed Sept. 25, 19:59

3 '5" 6/56 9 L Ear/17.57021 ATTORNEY Patented June 16, 1942 UNITED STATES PATENT OFFICE PAINT MIXER John C. Kelly and Earl R. Brazie, Owosso, lVIich. Application September 25, 1939, Serial No. 296,382

4 Claims.

' This invention relates to paint mixers by means of which paint or other materials may be agitated and the ingredients thereof thoroughly mixed together.

One of the prime objects of the invention is to design a power driven paint mixer, which can be mounted on a standard paint can or container, and provide flexible means on the agitator shaft for easily-and quickly mixing the can contents so that the paint will be of the proper consistency with the ingredients thoroughly mixed together.

Another object is to design a motor mounting of size, shape andmaterial to snugly fit the can opening after the cover has been removed, thus forming a motor support as well as a closure for the container.

A further object is to provide a readily portable mixer which fits cans or containers of standard size, which can be readily connected to the house wiring system or other source of power, and which can be easily and economically manufactured and assembled.

- A still further object is to design a motor driven mixer provided with flexible agitating means, so that the mixing operation will be even, gradual, and thorough.

A further object still is to provide a pail holder including a frame and quickly detachable resilient means for securing the mixing mechanism in position on the paint container.

With the above and other objects in view, the present invention consists in the combination and arrangement of parts, hereinafter more fully described, illustrated in the accompanying drawing, and more particularly pointed out in the appended claims, it being understood that changes may be made in the form, size, and minor details of construction without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawing:

Fig. l is a sectional side elevational view of a paint container showing our paint mixer mounted thereon, the broken lines showing smaller standard size containers and the motor and mixing mechanism in raised position.

Fig. 2 is a top plan view.

Fig. 3 is a fragmentary sectional top plan view taken on the line 3-3 of Fig. 1.

Fig. 4 is an end View showing the manner of connecting the agitator to the shaft.

Fig. 5 is a top plan view of the pail frame.

Referring now more particularly to the drawing, the numeral 8 indicates a paint can of standard size, such as stocked by hardware and 55 paint stores in general, and when these cans or containers are placed'on the shelves or in a warehouse for a period of time, the pigments and ingredients settle on the bottom and form a heavy mass of thick consistency.

In order that the paint may properly spread, (when applied, and give maximum wear after application) it is necessary that the various in gredients be thoroughly mixed before application, because paint properly mixed is more easily and evenly applied, all of the paint can be used, and it effectively covers more surface with better results.

The container 8 is formed with an enlarged opening 9, normally closed by means of a cover, (not shown) and this cover is readily removable for mixing and removal of the paint as desired.

A'cover plate I0 forms a part of the mixing mechanism and is formed with a plurality of spaced apart, flanged sections II, which are shaped to snugly fit the beaded rim [2, which surrounds the opening 9 in the container, and this plate in reality forms a substitute for the conventional cover, closely fitting the beaded rim l2 in exactly the same manner, and while in the present instance we have shown this cover plate in the form of a single casting, it will be clearly understood that the cover can be made of a plurality of flanged sections if so desired.

-A motor [3 is slidably mounted on this cover plate [0 and is provided with a handle M to facilitate handling, wires l5 leading to a suitable source of electrical energy. A metal band [6 embraces the motor l3 and includes a pair of laterally projecting arms I! terminating in bearings l8 which slidably engage the vertical guides l9 provided on the cover plate I 0, a suitable head 20 being provided on each guide and forms a stop for limiting the upward travel of the motor.

A coupling 2| is provided on the one end of the motor shaft as shown, and one end of an agitator shaft 22 is detachably secured thereto by means of a set screw 23, said shaft projecting through a stufling box 24 provided on the cover, and a transversely disposed coiled spring 25 is clamped to the lower end of the agitator shaft by means of the clamp 26, and this clamp is in turn secured to the agitator shaft 22 by means of rivets 21, or in any other approved manner.

One or more fins 28 extend radially from the shaft 22 and serve to agitate the body of the paint while the plastic mass is being gradually Worked by the agitator, and it will be obvious that when the agitator is first inserted in the container, that the end sections of the spring 25 will be bowed upwardly from the center by the plastic mass which has collected on the bottom of the can, and as the agitator is driven, this spring will wear and progressively loosen the accumulated mass until the entire can content is of an even consistency. There can be no snagging or forcing of the spring into the mass prematurely, and the flexibility and multiplicity of edges presented by the spring insures a smooth, gradual mix in which there will be no lumps or unmixed pigments.

A frame or spider 29 forms a support for the paint pail, and is formed with radiating arms 30, the ends of which are upwardly turned as at 3|, and coil springs 32 are anchored to two of these arms, a predetermined length of small chain 33 being attached to the free ends of the springs, and are adapted to detachably engage projecting lugs 34 provided on the cover plate In, T-shaped openings 35 being provided in the ends of the arms 30, and accommodate the links of the chain 33 for securing the cover in position on the container.

After the mixing mechanism has been mounted on the pail and the chains secured to hold it in position, the agitator mechanism, and more particularly, the coil spring 25 will rest on the plastic mass in the bottom of the pail, then as the motor is driven, this spring gradually eats its way into the mass, agitating and mixing the pigments until the pail contents are of a smooth even consistancy, and We wish todirect particular attention to the fact that the spring is freely flexible in every direction, topermit bending,

stretching, etc. It can also wrap itself around i the shaft or whip in any direction.

Smaller size containers B and C respectively are shown in broken lines in Fig. 1 of the drawing and the cover plate In is formed with flanged rims II which snugly fit thereon.

When desiring to mix a can of paint, the can is first placed on the frame 29, the cover plate is placed in position on the can, and the chains 33 are attached. The motor 13 is, of course, in raised position with the agitator spring 25 resting on the thick plastic mass; then as the mixing progresses, the motor moves downwardly on the guides H] as the mass is mixed until it bears against the bottom of the pail, at which time the paint will be thoroughly and evenly mixed. The mechanism is easily controlled by grasping the handle [4 and the entire mass can be treated by raising and/or lowering the motor accordingly.

From the foregoing description, it will be obvious that we have perfected a very simple, practical and effective power operated paint mixer, which can be mounted directly on the paint container, and by means of which the paint can be easily and thoroughly mixed.

What we claim is:

1. The combination with a receptacle cover supporting a motor for agitating material within a receptacle on which the cover is disposed, of means for preventing displacement of said cover, said means comprising a member engaging the bottom of the receptacle, arms carried by said member and extending beyond the periphery of the receptacle, arms carried by the cover and extending beyond the periphery of the receptacle and provided with T-shaped openings therein and relatively short contractible spring members connected to the arms of the body member, and chains secured to the free ends of the springs for detachably engaging the T-shaped openings in thecover arms for connecting the arms of the cover and the arms of the member engaging the bottom of the receptacle and forcing said cover to closed position.

2. A device as set forth in claim 1 in which the arms carried by themember engage the bottom of the receptacle and extend outwardly and upwardly into engagement with the periphery of the receptacle in radial angles other than the planes of the contractible spring members.

3. A rotating agitating device adapted to be traversed axially downwardly into a receptacle having partially solidified material in the bottom thereof, means for traversing said device, said device including a shaft, said shaft being provided with outwardly extendingnormally straight flexible coiled agitator spring arms, said spring arms having their inner ends anchored to the shaft and their outer ends free, whereby the arms will be flexed to a curved position when they engage the partially solidified material and will gradually dislodge the material from a point adjacent the shaft outwardly and the arms will straighten out as the dislodging continues.

4. A device as set forth in claim 3 wherein the spring arms at either side of the shaft are formed from a continued coiled spring anchored intermediate its length.

JOHN C. KELLY. EARL R. BRAZIE.