US2421711A - Extruding applicator for calking compound cartridges - Google Patents

Description

c. MOOTS ET AL EXTRUDING APFLICATOR FOR CALKING COMPOUND CARTRIDGES Filed Sept. 27, 1944 I Patented June 3, 1947 EXTRUDING APPLICATOR FOR CALKING' COMPOUND CARTRIDGES Clark Moots and Robert C. Hooker, Kansas City, Mo., assignors to Battenfeld Grease & Oil Corp., Kansas City, Mo., a corporation of Missouri Application September 27, 1944, Serial No. 555,960

2 Claims.

This invention relates to appliances for extruding plastic roofing cement, calking compound, orany other extrusile substance, from cartons or cartridgeswherein it is packed, for directing such compounds into crevices, and the p y aim is to provide an applicator that is quickly attachable to the existing cartridges, which is effective, inexpensive and so cheap to produce that the same may, if desired, be discarded with the emptied cartridge when the compound has been extruded therefrom.

One of the important aims of th instant invention is the provision of an extruding applicator for calking compound cartridges that may be collapsed into a compact bundle, having a length substantially the same as the cartridge of compound with which it is to be used and of a disposable nature-all to the end that the more expensive "guns now used, may be dispensed with and therefore, the time usually required to keep the same in condition saved.

This invention has for a further aim to provide apparatus of the aforementioned character, that is combinable with a tubular cartridge and capable of holding a nozzle in place as the manually operable extruding means is manipulated.

Other objects of the invention include specific structures and formation of parts-all of which will appear during the course of the following specification, referring to the accompanying drawing, wherein:

Fig. 1 is a perspective View illustrating the extruding applicator for calking compound cartridges, made in accordance with the present invention, and in disassembled association with one of the cartridges.

Fig. 2 is an enlarged'longitudinalcentral sectional view through the applicator and cartridge.

Fig. 3 is a cross sectional view taken on line III-III of Fig. 2; and

Fig. 4 is a fragmentary side elevational view illustrating the applicator in use with a type of cartridge different from that illustrated in Figs. 1 to 3 inclusive.

It is presently the general practice of the trade to employ relatively expensive, ruggedly made 7 essential elements of this invention to meet the problem of supplying an inexpensive applicator that may be compactly shipped with the conventional cartridge and discarded after the contents thereof has been applied.

The preferred form of the invention is illustrated in the accompanying drawing where like reference characters designate similar. parts throughout the severalviews.

The conventional tubular cartridge or carton I0 is well known in the trade. One of the end walls l2 thereof is provided with lines of weakness I4, which define an area that is easily punched from the condition shown in Fig. 1, to allow the escapeof compound [6 through the perforation thus created. The opposite end wall of cartridge I0 is in the nature of a piston or closure I 8 having a skirt 20 frictionally engaging the inner annular surface of cartridge if) when the cartridge is originally packed for use as well as during the time the compound is being extruded.

The applicator per se includes a tie-member 22 in the nature of a U-shaped; body,the free ends whereof are turned inwardly toward each other and formed as at 24 to engage a part of cartridge Ill, as will hereinafter be, more fully set forth. The bight 26 of member 22 is olfset to establish shoulders 28 and to receive a nut 3lll threaded upon rod 32. Rod 32 is freely slidable in a centrally disposedaperture formed in the offset portion as.

Ahandle 34 is presented by forming a portion of rod 32, as illustrated in Figs. 1 and 2. This handle becomes a grip for the operator.

The end of rod 32 opposite from handle 34 has a head 36 rotatably mounted for engagement with movable wall H3. The end of rod 32 which engages head 36 is reduced in diameter to create a neck 38 and after head 36 has been fitted thereover, the end of rod 32 is peened as shown and to allow freedom of movement on the part of head 36 about the axis of rod 32.

When a carton or cartridge, such as illustrated in Fig. 1, is supplied with the applicator just specified, an additional part is included. This part comprises a nozzle 40 having an annular flange 42 and a head 44. Flange 42 is positioned intermediate the ends of nozzle 40 and is substantially the same size as end wall 12. Head 44 is used to form the perforation'in wall l-2 when the sharpened end thereof is forced against the line of weaknes l4. Wall I2 is of thin material, will bulge inwardly when nozzle 40 is forced to the position shown in Fig. 2; and will thereafter assume the position behind the portion of greatest diameter on head 44thus nozzle 40 will not accidentally pull from place when the assembly is being employed to force compound l5 through nozzle 4|].

The inturned ends 24 of member 22 overlie the marginal edge of flange 42, and as rod 32 is turned about its axis, nut 30 will rest against the bight of member 22 and not only draw flange 42 against the outer face of wall 12, but will force head 36 .against the movable end wall 18 to extrude compound l6.

In the form of the invention illustrated in Fig.

3 4, carton or cartridge 50 is a tubular body having a cap 52 over one end thereof and toward which a movable wall, similar to wall 18, is forced. A

nozzle 54 integral with cap 52 serves as a means for directing the compound into the crevice to be calked. Member 22 is fitted on cartridge 50 in 4 pound cartons having a fixed perforated end wall and an end wall movable upon application of pressure to force compound through the perforathe same manner as illustrated in Fig. 2, to in- I sure rigidity and a clamping effect when rod 32 is manipulated.

The length of rod 32 is substantially the same as the length of cartridge 10 and member 22. It is possible, therefore, to package the parts when articles 10, 22 and 32 are in side-by-side condition. The material from which member 22 is created is inexpensive, plentiful, and of little value. After the compound I6 has been forced from one of cartridges 10, the cartridge may, therefore, be discarded where construction work is being done imparts of the country where it is impractical to ship the applicator back to a point of origin for re-use.

It will be noted in Fig. 2 that member 22 is longer than the carton 10 to provide a space for the fingers of the operator. Thus, when the carton l first is inserted,'rod 32 may be moved toward closure 18 until nut 30 is out of engagement with shoulders 28. As continued inward pressure is applied to rod 32, nut 30 may be moved along rod 32 by the operator until the head 36 engages the wall l8. Speedy manipulation is, therefore, insured without the employment of expensive mechanism. This feature is particularly advantageous when partially filled cartons are to be reinserted, and it also facilitates speedy movement of the nut 30 on the rod 32 when an empty carton is to be replaced by afull one, obviating the slow process of turning handle 34 outwardly to its point of beginning.

In practice, some dozen or so cartridges are shipped with a single applicator, and, since it is easy and convenient to transfer the applicator from one cartridge to another, no time is lost and all the compound is forced from each cartridge as needed. No waste is experienced not only because of the quick interchangeability of the applicator, but because of the way in which it may be manipulated.

The flow of compound 15 may be stopped as soon as the exact desired amount is extruded The Nozzles 40 or 54 may be formed to present specific shapes and can be created of any material desired. Temporary durability is all that is necessary. These nozzles are, of course, re-usable and, like the remaining parts of the applicator,

not useless after a single employment with a.

cartridge, Several cartridges of compound may be applied with the device made in accordance with the concepts of this invention.

The pitch of screw-threads on rod 32 may be varied to suit conditions and screw-threads, or other means of attachment may be employed at head 44.

Obviously, the invention may be embodied in applicators having appearances different from those illustrated, and therefore, it is desired to be limited only by the spirit of the invention and scope of the appended claims.

Having. thus described the invention, what is claimed as new and desired to be secured by Letters Patent is:

1. An extruding applicator for caulking comtion of the fixed end wall, said applicator comprising a substantially U-shaped tie member having an offset portion at the bight thereof to present a pair of opposed shoulders, and having an opening therein through said offset portion; a manually operable, pressure exerting rod slidably mounted in said opening; a head on one end of said rod engageable with said movable end wall; a nut on the rod for driving the head into the carton upon rotation of said rod when the nut is between said shoulders; and a flanged nozzle fitted into the perforation of the fixed end wall, the free ends of the legs of said tie member being inturned, the carton being disposed between said inturned ends and the bight of said tie member, said ends holding the flanged portion of the nozzle against the fixed end of the carton when said head is against the movable end thereof, the legs of said tie member being longer than the carton to present a space between the bight of the member and the proximal end of the carton'to permit access to the nut when the same is moved out of engagement with said shoulders by sliding the rod within said opening and toward said movable end of the carton. v

2. An extruding applicator for caulking compound cartons having a fixed end wall and an end wall movable toward the fixed end wall upon application of pressure thereto, said applicator comprising a substantially U-shaped tie member having an offset portion at the bight thereof to present a pair of opposed shoulders, and having an opening therein through said offset portion; a manually operable, pressure exerting rodslidably mounted in said opening; a head on one end of said rod engageable with said movable end wall; a nut on the rod for driving the head into the carton upon rotation of said rod when the nut is between said shoulders; and a flanged nozzle fitted into the perforation of the fixed end wall, the free ends of the legs of said tie member being inturned, the carton being disposed between said inturned ends and the bight of said tie member, said ends holding the flanged portion of the nozzle against the fixed end of the carton when said head is against the movable end thereof, said nozzle being separable from the tie member and having the flange disposed intermediate the ends thereof, movement of said movable end wall serving to draw one end of the nozzle through the fixed end wall of the carton, said one end of the nozzle being sharpened and having a portion of increased diameter for holding the nozzle against displacement when said portion thereof is in the carton.

CLARK MOOTS. ROBERT C. HOOKER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,025,230 Tear Dec. 24, 1935 1,484,331 Hopkins Feb. 19, 1924 1,526,568 Rudolph Feb. 1'7, 1925 FOREIGN PATENTS Number Country Date 48,073 Denmark Nov. 27, 1933

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