US2988775A - Applicator spout for glazing cartridges and the like - Google Patents

Description

June 1961 w. E. PAINTER ET AL APPLICATOR SPOUT FOR GLAZING CARTRIDGES AND THE LIKE Filed Feb. 2, 1960 I WI: 4.22%:

IN V EN TORB WILLIAM E. PAINTER J. HULL, JR.

A F NE YS llnited States Ohio Filed Feb. 2, 1960, Ser. No. 6,185 4 Claims. (Cl. 18--3.5)

This invention relates generally to tools of the class which are used to dispense viscous materials such as glazing compound and the like, and, more specifically, to an applicator spout from which the viscous material may be discharged and applied in an improved manner.

A principal object ofthe invention is to provide 'a unique applicator spout construction which is effective to dispense glazing compound and the like in an easily controlled manner so that the glazing compound can be applied quickly and neatly.

More particularly, it is an object to provide an applicator spout having an output end which is formed so as to effectively contain the material extruded therefrom against spreading beyond the maximum outside width of the output end transverse to the glazing direction. Further, the spout is formed so that the maximum width of the area in which the extruded compound is confined is substantially equal to the diameter of the output opening through which the compound is expressed. By forming the spout in the described manner, it is possible to obtain an improved compound applying action.

Another object of the invention is to provide an applicator spout construction of the type described which includes means for guiding the spout as it is moved along the material applying path.

A further object is to provide an applicator spout including means for smoothing the surface of the material extruded from the spout. This smoothing means, combined with the means for guiding the spout and confining the extruded material, insures that the material applying operation will be carried out neatly in a facile manner and with maximum efiiciency.

Other objects include the provision of an applicator spout of the class described which is rugged and durable, and yet is inexpensive to manufacture.

The invention contemplates forming the spout from an elongated hollow body having one end cut at an angle to its axis to form a face-plane in which is located the output opening of the spout. According to one important aspect of the invention, the face-plane is rectangular in shape, as is the output opening, with the width of the opening substantially equaling the width of the face-plane. The spout further includes a trailing flange which is coplanar with the face-plane and which is formed on the trailing edge thereof.

When the above-described spout is used to apply glazing compound, as for example in a glazing operation where the compound is laid between angularly disposed surfaces, the spout can be placed in a comfortable angular position with the parallel edges of the face-plane in line contact with the surfaces between which the compound is to be laid. The line contact of the face-plane serves the dual function of confining the material extruded from the output opening so that the material is prevented from going beyond the maximum width of the face-plane, and of guiding the spout as it is moved. Since the output opening is substantially equal in width to the face-plane, it will be seen that the area defined by the face-plane and the angularly disposed surfaces will be filled with glazing compound in such a way as to minimize the amount of transverse expansion necessary to fill such area. The trailing flange contains and smooths the extruded compound atent- Q ice as the glazing operation is carried out, but it is to be noted that there is substantially no lateral spreading of the extruded compound.

These and other objects and advantages of the invention become more apparent when considered in connection with the following detailed description of an example of the invention.

See the drawings: 1

FIGURE 1 is a side elevation, partially in section, of a spout constructed according to the invention in association with cartridge elements with which it may be permanently associated.

FIGURE 2 is an end elevation of the same spout, showing the output opening.

FIGURE 3 is another elevational view of the spout.

FIGURE 4 is'a view showing the spout associated with a calking gun.

FIGURE 5 is a fragmentary view of the spout showing its operative position in a glazing operation.

FIGURE 6 is a sectional view taken on the plane of line 66 in FIG. 5.

Referring now to the drawings, and to FIGS. 1, 2 and 3 in particular, there is shown a spout 10 which includes a longitudinally extending body 11 having an axial bore or longitudinally extending passage 12 and an input opening 13 and an output opening or mouth 14. The spout may be formed of polyethylene or the like and can be made in a relatively inexpensive molding operation.

As shown, the spout 10 includes a rim 15' surrounding the input opening 13. The spout and a conventional calking cartridge 16 may be assembled together by fitting the rim 15 into a recess formed in the end wall of the cartridge. A retaining cup 17 is provided for holding the rim in the recess. If desired, a seal 18 may also be assembled with the spout and cartridge, the seal being punctured before the assembly is placed in use.

The output end of the spout 10 is formed at an angle to the axis of the bore or longitudinally extending passage 12 to provide a face-plane 25 in which is located the output opening or mouth 14. In the preferred embodiment of the invention, the angle of the face-plane is approximately 45 degrees or within the range of from '40 to 50 degrees or, less preferably, 30 to: 60 degrees.

These angles permit the associated tool 26 to be held in a position which leads the spout during the glazing operation. The output mouth 14 is thus seen to have a leading portion 23 relatively close to the longitudinally intermediate portion of the body 11 and a trailing portion 24- relatively remote to the longitudinally intermediate portion of the body 11.

As shown, the face-plane 25 is rectangular and intersects or joins with opposite sides of the longitudinally extending body 11 to form a pair of parallel side edges 27 which are coextensive with the outer surface of the body portion 11. The output opening or mouth 14 is also rectangular, as distinguished from the circular input opening 13, and has a width which substantially equals the width of the face-plane, being reduced therefrom only by the wall thicknesses at each side of the spout.

The spout 10 further includes a trailing flange 28 extending from the outermost side of the face-plane 25 between the parallel edges 27. This is the trailing side of the face-plane 25 when the spout is used to apply glazing compound. The flange 28 is coplanar with the faceplane. The face of the flange 28 which is defined by the face-plane 25 comprises a smoothing face and the flange 28 performs substantially no spreading function, but it contains and smooths the material discharged from the spout as the tool 26 is operated, all as illustrated in FIGS. 5 and 6.

When the invention is used to apply glazing compound, the spout 10 is positioned with the edge portions 27 in line contact with the angularly disposed surfaces 29 and 30 between which the compound 31 is to be laid, this position being shown in FIG. 5. It will be evident that this line contact effectively confines the extruded compound 31 so that none of the compound can be expressed beyond the maximum width of the face-plane 25, thus insuring that the compound will be laid down in an even and neat path. This feature and the co-operation between the faee-plate 25 and the work surfaces 29 and 30 are readily distinguishable from conventional spouts having output ends with curved edges. In such conventional spouts, the point contact between the output end of the spout and the work surface permits the compound to be expressed beyond the maximum width of the end of the spout making it much more diflicult to neatly and efficiently carry out the glazing operation.

Since the width of the face-plane exceeds the width of the output opening 14 only by the wall thicknesses at each side of the spout, and since the opening is rectangular, thus affording the maximum output area for a given width of the opening, the glazing compound will fill the area beneath the face-plane with a minimum of transverse expansion. This construction permits the glazing operation to be carried on with such facility as to make the device acceptable even for retail merchandising, as well as for commercial merchandising. Again, the contemplated construction is readily distinguishable from conventional constructions having circular or oval spout ends. In its more specific aspects, the contemplated construction is also distinguishable from hypothetical constructions in which the face of the spout end is rectangular and the output opening is circular or oval-in such hypothetical constructions the output opening has a substantially smaller area than the end face. With such conventional or hypothetical constructions, unless the operator possesses exceptional skill, the compound will be laid down unevenly in a most undesirable fashion.

It should be understood, of course, that the foregoing disclosure relates only to a preferred embodiment of the invention and that it is intended to cover all changes and modifications of the example of the invention herein chosen for the purposes of the disclosure which do not constitute departures from the spirit and scope of the invention as defined by the appended claims.

What is claimed is:

1. An applicator spout comprising a hollow longitudinally extending body defining a longitudinally extending passage for guiding material to be applied, said body having an output end at which said longitudinally extending passage terminates in an output mouth, said output end being formed as a truncation of said body on a plane which is skewed with respect to the direction of longitudinal extent of said body whereby said output mouth has a leading portion relatively close to the longitudinally intermediate portion of said body and a trailing portion relatively remote to said longitudinally intermediate portion of said body, a pair of parallel side edges at said output end and defined by intersections of opposite sides of said body with said plane, laterally projecting means integral with said body and defining a smoothing face which lies in said plane to the side of said output mouth immediately adjacent said trailing portion of said output month, said smoothing face having two side edges each comprising a collinear extension of its own one of said pair of parallel side edges, the width of said smoothing face from said output mouth to the trailing extremity of said smoothing face being substantially in excess of the width of any area on said plane between either of said pair of parallel side edges and said output mouth.

2. An applicator spout comprising a hollow longitudinally extending body defining a longitudinally extending passage for guiding material to be applied, said body having an output end at which said longitudinally extending passage terminates in an output mouth, said output end being formed as a truncation of said body on a plane which in skewed with respect to the direction of longitudinal extent of said body whereby said output mouth has a leading portion relatively close to the longitudinally intermediate portion of said body and a trailing portion relatively remote to said longitudinally intermediate portion of said body, a pair of parallel side edges at said output end and defined by intersections of opposite sides of said body with said plane, laterally projecting means integral with said body and defining a smoothing face which lies in said plane to the side of said output mouth immediately adjacent said trailing portion of said output mouth, said smoothing face having two side edges each comprising a collinear extension of its own one of said pair of parallel side edges, the width of said smoothing face from said output mouth to the trailing extremity of said smoothing face being substantially in excess of the width of any area on said plane between either of said pair of parallel side edges and said output mouth, the end of said hollow longitudinally extending body opposite to said output end comprising an input end, the transverse cross-sectional shape of said passage changing from curvilinear to rectangular between said input end and said output end.

3. An applicator spout comprising a hollow longitudinally extending body defining a longitudinally extending passage for guiding material to be applied, said body having an output end at which said longitudinally extending passage terminates in an output mouth, said output end being formed as a truncation of said body on a plane which is skewed with respect to the direction of longitudinal extent of said body whereby said output mouth has a leading portion relatively close to the longitudinally intermediate portion of said body and a trailing portion relatively remote to said longitudinally intermediate portion of said body, a pair of parallel side edges at said output end and defined by intersections of opposite sides of said body with said plane, laterally projecting means integral with said body and defining a smoothing face which lies in said plane to the side of said output mouth immediately adjacent said trailing portion of said output mouth, said smoothing face having two side edges each comprising a collinear extension of its own one of said pair of parallel side edges, the width of said smoothing face from said output mouth to the trailing extremity of said smoothing face being substantially in excess of the width of any area on said plane between either of said pair of parallel side edges and said output mouth, the end of said hollow longitudinally extending body opposite to said output end comprising an input end, the transverse cross-sectional shape of said passage changing from curvilinear to rectangular between said input end and said output end, said input end defining a portion of said longitudinally extending passage which is of relatively great transverse cross-sectional area with the transverse cross-sectional area of said passage progressively decreasing toward said output mouth.

4. An applicator spout comprising a hollow longitudinally extending body defining a longitudinally extending passage for guiding material to be applied, said body having an output end at which said longitudinally extending passage terminates in an output month, said output end being formed as a truncation of said body on a plane which is skewed with respect to the direction of longitudinal extent of said body whereby said output mouth has a leading portion relatively close to the longitudinally intermediate portion of said body and a trailing portion relatively remote to said longitudinally intermediate portion of said body, a pair of parallel side edges at said output end and constituting joinders of opposite sides of said body with said plane, laterally projecting means integral with said body and defining a smoothing face which lies in said plane to the side of said output mouth immediately adjacent said trailing portion of said output mouth, said smoothing face having two side edges each comprising a collinear extension of its own one of said pair of parallel side edges, the width of said smoothing fiace from said output mouth to the trailing 5 extremity of said smoothing face being substantially in excess of the Width of 'any area on said plane between either of said pair of parallel side edges and said output mouth.

References Cited in the file of this patent UNITED STATES PATENTS Printz Aug. 1, 1905 Weber Feb. 6, 1923 Hooper Apr. 16, 1940 FOREIGN PATENTS Italy July 17, 1953 Belgium Nov. 29, 1952

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