US2164244A - Applicator - Google Patents

Description

`June 27, 1939. A lH JUNG APPLIGATOR Filed Deo. 21, 1958 Patente 11: :1 27, 1 939 11N1TED( sTATEs PATENT oI-rlcs This invention relates to combined container caps and applicator tubes and rods and methods of making same and more particularly to com-A bined caps and applicators oi cemented construction. I

Prior to the instant invention it has been proposed that a projecting tubular portion be formed on the interior of the c'ap for reception of the applicator tube orrod and that-a joint be effected between the cap and the applicator either by friction or fusion. kOther'prior combined caps and applicator tubes have involved forming the'interior of the cap with a projecting portion for coaction with the interior of the applicator tube by friction. In the patent to Conner No. 1,966,581, over which the instant cap has a depressed portion for the reception' of the flangedfend of the applicator tube. These prior Acombined vdevices have been relatively diicult to manufacture, involving the necessity of special tools and the 'requirement of a relatively great amount of material and have otherwise beenfound unsatisfactory.

It is an object of the instant invention to pro'- vide'a combined Acap and applicator of simple construction, of a minimum amount of material and requiring no special tools for its fabrication. It is a further object of the instant invention to teach a method of making a simple cemented combined cap and applicator involving a .minimum of steps and resulting in a finished article of satisfactory characteristics.

Other objects and the natureand advantages of the invention will be apparent from the following description takenA in conjunction with the accompanying drawing, wherein:-

Fig. 1 is a. schematic view of the method of fabricating lthe combined cap and applicator in accordance with the invention; Y

Fig. -2 is a vertical section oa combined cap and applicator rod; and,

Fig. 3 is'a view similar to Fig. 2 but of a combined cap and applicator tube.

Referring to the drawing, an endless conveyor I 0 may be caused to move over the rollers .II in the direction of the arrows by any suitable means such as an-elctricmotor, not shown; Beneath the upper portion of the conveyor II! may be located a rigid table I2 to form abase whereby the cementing operation the sections .I3 of the conveyor Ill may-be a as illustrated in part C of Fig. 1. `10

. The applicator rod I9, which rmay be of glass invention is an improvement, the interior of the The'well I8 may be better-"carried out and a superior joint eiected. Mounted upon'- tion, a series oi.' caps I5 which may be of syn. thetic plastic or other suitable material. 'I'hese caps' may be molded or otherwise lformed and placed in the holders I l. Movement of the coni veyor passes the caps I5 within the holders I4 successively beneath the cement dispenser I6, see partB ot Fig. 1, which is so timed and tarranged to cause a metered portion of cement I'l to tall upon the recessed portion IB of the cap I5 or other suitable material depending upon the `character of the matter to be dispensed by the applicator, and .cap washer 20, which may be of cork or other material or `a lamination of, cork and other material, are temporarily held to the plunger 2| by suction'tubes S and then brought vzlown into engagement with the cap as best illustrated in part D of Fig. 1 by the' plunger 2| whereby the metered quantity ot cement' is caused to lill the entire neously the head portion 22 oi the applicator rod I9 and the unexposed side 23 4of the washerl are cemented to the interior of the cap I i.

Upon drying of lthe cenrent'V a neat relatively strong joint is eiected between the rod, washer, and cap making a very satisfactory assembly.

ment dries it will be locked into place holding within the lock the head 22 of the'applicator rod I9. Not only does the cement hold the applicator rrod in place within the well I8 of the cap I5, but

at the same time, the surface 2 3 ot the washer 2l' is also engaged. The amount of undercutting ofthe sides ofthe well Il may vary and yet be within the scope of the invention. However, 'in

^ practice when the diameter. of the upper surface of a. cap is approximately-one inch, the rod apbottle or other caps inthe manner above described, but applicator tubes may be so applied to eii'ect a. nished combined applicator and cap as illustrated in Fig. 3, wherein a tube .24 holding a brush 25 at its' lower portion and being formed at its upper end with a dared section 26 is secure- A 1y locked within cement Il', aas-illustrated, the ce-y Y .ment adhering to the inner portions of the tube as weil as the exterior ofthe ared section,l the walls of the depressed section I8' o1' the cap l5' and recess I8, and simulta-y l is undercut whereby when the cesaid recesse surface 2l oi' the washer 2U' forming an exceptionally strong, relatively rigid, combined cap and applicator assembly.

Not only has the nished product described above been found satisfactory, but its method of manufacture is relatively simple, requiring a minimum of materials and no special tools. In fact the process can be very Well carried out by hand with a minimum of eifort with certainty oi' a satisfactory result upon completion. By resorting to acemented construction, a more uniform result is achieved in mass production than when a friction combination is utilized. In practice, when the latter process is used, a greater number of the assemblies must be rejected for lack of proper desired holding qualities. In those processes which involve a fusion of the applicator with the cap, not only is expensive machinery required involving apparatus effecting thermal changes, but theiinished unit assemblies, in mass production, may involve among their number flaws which have to be rejected.

While a flexible conveyor has been illustrated as an apparatus which may be utilized in performing the assembling process described, yet it is to be understood that it is within the scope of the invention to use no conveyor at all, or a rotary turn table, or other suitable machine in the perfomance of these operations.

It will be obvious to those skilled in the art that various changes may be made in this device without departing from the spirit ofthe invention and therefore the invention is not limited to what is shown in the drawing and described in the specification but only as indicated in the appended claims.

What is claimed is:

v1.. A combined cap and applicator comprising a molded cap formed with a recessed portion, an applicator having an enlarged head within said recessed portion, a washer aboutlsaid applicator and engagii said head, said recessed portion being measur bly larger than said head portion, portion being substantially filled with cement engaging the walls of said recessed p ortion, the head of said applicator, and at least a portion of the surface oi' said washer simultaneously to etect a relatively rigid unitary assembLv.

2. A combined container cap and applicator rod comprising: a molded cap of synthetic plas-k tic formed withr a recessed portion on the inner side'of the top portion thereof; an applicator rod having an enlarged head entirely within said receased portion; a washer concentrically disposed about said applicator and engaging a portion of said head; said recessed portion being measurably larger in one dimension than said head portion;

ma recessed portion being substanaauy fined4 with cement engaging thewels of said recessed portion, substantially the entire head of said applicator, and at least a portion of the unexposed surface ot said washer simultaneously to eiect a relatively rigid unitary assembly. 5

3. A combined container cap and applicator comprising: a molded cap of synthetic material formed with a recessed portion on the inner side of the top portion thereof; an applicator tube having a ilared head located entirely within said recessed portion; a washer about said applicator tube and engaging that portion of the applicator adjacent the flared portion; said recessed portion being measurably larger than said ared portion; said recessed portion being substantially filled with cement engaging both sides of the iiared portion of the applicator' tube, the Walls of the recessed portion, and at least a portion of the unexposed surface of said washer simultaneously to effect a relatively rigid unitary assembly.

4. The structure recited in claim 2, and said recessed portion being of greater dimension at its bottom than at its opening to form a lock for the cement.

5. The structure recited in claim 3, and saidI recessed portion being of greater dimension at its bottom than at its opening to form. a lock for the cement.

6. Ihe method of fabricating a combined container cap and applicator assembly comprising: forming a cup-shaped cap having a. planular lhead, generally cylindrical side walls, and a depressed portion in 'said planular head; applying a metered quantity of cement to said depressed portion; substantially simultaneously inserting an applicator having an enlarged head and a washer within the walls of said cap with the head of the applicator within the depressed portion of the cap and the washer engaging the planular head; 40 the head of the applicator being substantially submerged in the cement causing it to engage the walls of the depressed portion, the head of the applicator, and at leasta portion ofthe washer; permitting the cement to solidify and 4,5 form a rigid assembly.

'1. A combined container cap and applicator comprising a molded cap having a top and side walls, an undercut recessed portion formed in said top, an applicator tube having an obliquely iiared head portion within said recessed portion, a washer about said applicator adjacent the anged head portion, said recessedportion being substantially illled with cement engaging the Walls of said recessed portion. both sides'of the iianged 55 portion of the applicator, and at least at portion of the surface of said washer simultaneously to eect a relatively rigid unitary assembly.

ALBERT H. JUNG,

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