US2762071A

US2762071A - Applicator

Info

Publication number: US2762071A
Application number: US362624A
Authority: US
Inventors: Herbert A Eggert
Original assignee: Individual
Current assignee: Individual
Priority date: 1953-06-18
Filing date: 1953-06-18
Publication date: 1956-09-11
Anticipated expiration: 1973-09-11

Description

Sept. 11, 1956 H. A. EGGERT APPLICATOR Filed June 18, 1953 INVENTOR. HERBERT A. EGGERT BY ATT'YS United States PatentpD APPLICATOR Herbert A. Eggert, Oak Park, Ill.

Application June 18, 1953, Serial No. 362,624 2 Claims. (31. 15-13145 This invention relates to improvements in applicators.

The main objects of this invention are to provide a new and improved applicator having a separable housing having a chamber into which a liquid, or fluid, or an adhesive is housed, and a roller for distributing the fluid, etc. when in use; to provide an applicator of this general type wherein the roller is mounted almost entirely within the fluid chamber and having only a very small portion of the circumferential surface thereof extending outwardly beyond the bottom of the housing and positioned directly in the mouth of the discharge opening of the chamber to restrict the opening; to provide an applicator of this general character wherein the inner surfaces of the housing end walls are tapered inwardly from the top to the bottom to cause the fluid in the container to move downwardly by gravity tothe discharge opening and cause the circumferential surfaces of the roller to be a substantially entirely covered thereby; to provide an applicator of this character having a preformed channel or track incorporated in the bottom surface of the housing and in cooperative relation with the exposed circumferential portion of the roller, whereby to cause the deposition of the adhesive directly on the material on whichit is being applied, of a predetermined-width and thicknessyto' provide an applicator of this general character which is separable for ready cleaning; and to provide an applicator of this character which is very simple in construction and operation and which has no working parts that can get out of order, and inexpensive to manufacture.

Specific embodiments of roller applicators are shown in the accompanying drawing in which:

Figure l is a perspective view of the device of the present invention, shown being used on a piece of cloth to deposit the strip of adhesive.

Fig. 2 is an end plan view of the device of Fig. 1.

Fig. 3 is a side plan view of the device of Fig. 1.

Fig. 4 is an exploded view in perspective of the device of the present invention.

Fig. 5 is an exploded side plan view of a modified form of roller applicator,

Fig. 6 is an exploded perspective view of the roller and associated parts of the device of Fig. 5.

As shown in the drawing, the device of the present invention is preferably entirely constructed of a clear, plastic material and comprises a pair of side walls 1 and 2, each containing an aperture 3 and 4 into which the cylindrical bosses 5 and 6 of the substantially same diameter as the diameter of the apertures 34, are respectively arranged to frictionally seat.

When the side walls 1 and 2 are placed in abutting position, as shown in Fig. 1, it will be seen that a chamber 7 is formed therebetween with downwardly and inwardly diagonally extending

end wall surfaces

8 and 9. The lower ends of the

surfaces

8 and 9 terminate in a discharge opening or port 10.

A cylindrical roller 11 is provided with an axially extending bore 12 adapted to be journaled on cooperating cylindrical bosses 13 and 14, which bosses 13 and 14 2,762,071 Patented Sept. 11, 1956 are of a diameter slightly less than the diameter of the bore 12 so that the roller is freely rotatable thereon. I

It is to be noted especially from Fig. 3 that the roller 11 is so positioned in the housing that only a small area of the circumferential surface extends beyond the discharge opening 10. The roller 11 also substantially blocks the discharge opening 10 so as to restrict the opening 10 and only a very small amount of adhesive will be able to flow between the circumferential surface of the roller and the discharge port 10.

It is also to be noted from Fig. 2 that the thickness of the roller 11 is only slightly smaller than the distance between the inner surfaces of the side walls 1 and 2, so that only a very minute amount of adhesive, if any, from the container will flow between the sides of the roller 11 and the inner surfaces of the side walls 1 and 2.

It should now be apparent that the roller 11 lies directly in the path of movement of the adhesive in the chamber 7 when the applicator is in use,

Each bottom surface 15-46 of the side walls 1 and 2 respectively contains'a cut-away portion 17-18 so that when the side walls are in position to form the housing a track or elongated channel recess 19 is formed in the bottom of the housing. The track 19 runs from the forward edge of the outlet port 10 to the rear edge of the bottom surfaces 15-46. A

The adhesive in the chamber 7 is of such viscosity that it will move downwardly towards the discharge opening but will not, of its own accord, pass therethrough due to the almost complete closing of said discharge opening 10 by the roller 11. However, when the applicator is placed on the material on which the adhesive is to be applied, as shown in Fig. 1, movement of the applicator in the direction of the arrow, will cause the roller to rotate in a clockwise direction. The circumferential surface of the roller being immersed in the adhesive in the chamber 7, will deposit the adhesive on the material in a measured quantity, due to the restricted amount thereof that can be discharged.

As the deposition of the adhesive is being effected only by movement of the applicator on contact with the surface on which it is being applied, the track 19 will cause the thickness of the adhesive so deposited to be consistent with the depth of the channel 19. Also the side walls forming the channel 19 will keep the adhesive from spreading laterally and cause the adhesive deposited to be of a definite width, namely the width of the channel 19. See Fig. 1. Excess adhesive will be retained on the roller face and returned to the interior of the housing, as will be apparent.

The adhesive is supplied to the chamber 7 by any convenient means, such as by filling the same from a tube of adhesive to any desired depth or fullness.

In the modified construction shown in Figs. 5 and 6, the device consists of an elongated hollow tube 29 having a cover 21, removably secured to the upper end thereof- The lower end of the tube 20 is arranged to receive the applicator 22.

In the modified construction, as in the preferred embodiment, the applicator comprises a pair of separable

identical members

23 and 24, the outer surface of which is tapered. The upper end of these members is cutaway as at '25 to form a stem 25'. Each of the

members

23 and 24 isprovided with inwardly extending

cylindrical bosses

26 and 27 respectively, each arranged to seat in cooperating apertures 28, so that when the

side members

23 and 24 are placed in abutting operative position, they will be frictionally held together by the bosses 26 and 2'7 seated in the corresponding apertures 28, and take on the appearance of a hollow cylinder since the applicator is formed with an axial bore 20' therein.

The cylindrical roller 29 is held in position in the disj tively.

charge end of the applicator by

cylindrical bosses

30 and 31, and as in the preferred embodiment, the

bosses

30 and 31 are of a diameter slightly less than the axial bore 32 of the roller 29, so that the roller is freely rotatable on said bores. It is to be noted from Fig. 5, that the roller 29 is positioned in the bore 20 in the same manner and relationship to the discharge opening 33 as in the preferred embodiment. The bottom end-of bore 26 is cut away -'as at 34 to accommodate the roller 29. Theinside diameter of thetube 20 is only slightly greater than the diameter of stems 25' when in, abutting relationship to each other, so as to frictionally retain the stems when inserted therein. Y j a It is to be noted that no track is provided in this modified construction, but that the adhesivec'ontained in the cylindrical housing 20 flows downwardly by gravity against the circumferential surface of the roller 29, and as the applicator is moved,'the roller will rotate causing a deposit of the adhesive on the material on which it is to.

be applied.

It is obvious that the roller 29 must be in contact with the material on which the adhesive is to be applied in order that the roller will rotate. A cap 35 is provided to enclose the applicator head sothat it will always be ready for use. I

Should the adhesive dry on the rollers 11 or 29, it is obvious that the applicator is very easily dismantled by merely separating the-side walls 1--2 or 23-24 respec- This will expose the interior of the applicators and easy removal of the rollers 11 and 29 for ready clean ing and reassembly without the aid of any tools;'

Although but two specific embodiments of roller applicators have been herein shown and described,it will be understood that numerous details may be altered or omitted without departing'from the spirit of the invention as defined by the following claims] I claim: 7 t

1. In a device of the class described, a longitudinally split two-piece hollow housing open at its upperend,

comprising a bottom surface, a pair of vertically extending side walls and a pair of end walls, the inner surfaces of said end walls each converging downwardly and terminating in discharge opening, a cylindrical roller positioned in said housing adjacent said discharge opening and substantially blocking the same, said roller being journaled in said housing side walls and having a diameter greater 2. In a device of the class described, a pair of sub stantially identical preformed members each comprising a side wall, a bottom surface and laterally extending end walls, the inner surfaces of said end walls each converging downwardly and terminating in spaced relation to each other to form a channel opening, each of said members having friction means in said end walls to removably position said members in face to face relationship'to 'form a housing having an enclosed opening in the bottom thereof, a cylindrical roller substantially entirely within said housing and adjacent the enclosed opening and sub stantially blocking the same, said roller being journalled in said housing side walls and having a diameter greater than the length of the enclosed opening between the converging inner surfaces of said end walls, whereby a relatively small portion of the circumferential surface of said roller is exposed beyond said housing bottom surface at any time, said bottom surface of said housing extending from the lip of one of said converging inner end wall surfaces at the enclosed opening and in the plane of said enclosed opening and a channel in said bottom surface of said housing extending rearwardly from the opening.

References Cited in the file of this patent V UNITED STATES PATENTS 193,813 Gash Aug. 7, 1877 799,674 Rickman -a Sept.-19, 1905 Alexander a Feb. 19, 1935