US2634889A - Dispensing device for calking material and the like - Google Patents

Description

DISPENSING DEVICE FOR CALKING MATERIAL AND THE LIKE Filed Feb. 21, 1950 INVENTOR. 5221 Ma/AM flfx/maavay BY 2 g A m-%ys Patented Apr. 14, 1953 UNITED STATES PATENT OFFICE DISPENSING DEVICE FOR CALKING MATERIAL AND THE LIKE The present invention relates to a dispensing device for calking material and the like and more particularly to a device having a handle assembly to which a cartridge of calking material may be detachably secured, and plunger mechanism carried by the handle assembly adapted to advance a piston through the cartridge and force the material therefrom. The present application is a continuation-in-part of my application Ser. No. 762,705, filed July 22, 1947, now abandoned.

The principal object of the invention is the provision of a new an improved dispensing device for calking material and the like comprising a handle assembly having a seat for receiving one end of a cartridge, 2. plunger mechanism carried by the handle assembly adapted to advance a piston through the cartridge, and means for holding the cartridge to its seat including a bail pivoted to the handle assembly and cooperating with an abutment means adapted to engage the outer end of the cartridge. In the preferred form of the invention, the abutment means shown is in the form of a plate carried by the bail and having a grip member by which it is movable into and out of engagement with the cartridge.

Another object of the invention is the provision of a new and improved device of the character referred to in the preceding paragraph having a projection extending from the cartridge engaging abutment means, which projection forms a lateral brace for a spout associated with the cartridge.

The invention resides in certain'constructions and combinations and arrangements of parts and further objects and advantages will be apparent to those skilled in the art to which it relates from the following description of the preferred embodiments described with reference to the accompanying drawings forming a part of this specification, in which:

Fig. 1 is a perspective view of a calking gun having a cartridge attached thereto;

Fig. 2 is a view of the calking gun shown in Fig. 1 but showing the cartridge removed and a portion of the gun broken away;

Fig. 3 is a fragmentary perspective view of one end of a bail for securing cartridges to the handle assembly of the gun;

Fig. 4 is a view taken substantially on line 4-4 of Fig. 3, but on a larger scale;

Fig. 5 is a view similar to Fig. 3 but showing another form of the invention;

Fig. 6 is a sectional view taken on line 6-6 of Fig. 5; and

Fig. '7 is a view similar to Fig. 3, but showing still another form of the invention.

The present invention contemplates a dispensing device comprising a handle assembly having a seat for receiving one end of a material-containing cartridge, a piston mechanism associated with the handle and adapted to advance a piston through the cartridge to force the material therefrom and means for securing a cartridge in the seat. In the preferred form of the invention the means for securing the cartridge to the seat comprises a bail pivoted at one end to the handle assembly and cooperating with an abutment means at the opposite end, which abutment means is adapted to be held in snug-engagement with the outer end of the cartridge by the bail. Preferably, the abutment means comprises a plate carried by the bail and having a projection forming a grip by which the plate may be moved into and out of engagement with the cartridge by swinging movement of the bail.

In one form of the invention it is contemplated that the plate have a projection adapted to engage a side of a spout structure associated with the discharge end of the cartridge to reinforce or brace the spout against lateral pressures.

Although the invention may be adapted to devices of diiferent forms and uses, it is particularly suitable when embodied in the form of a calking gun for direct calking material into apertures or crevices in building walls or other structures. Referring to the drawings, a calkin gun is shown which comprises a handle assembly preferably formed of a channel-shaped hand grip l I having the open side thereof forwardly or at the left, as viewed in Fig. 1. The upper portions of the hand grip member extend forwardly and outwardly to form substantially semi-circular flanges l2, only one of which appears in the drawing.

A cartridge seat is carried by the handle assembly a d comprises a cup shape member I4 havin its closed end attached to the flanges I2. The member I4 is adapted to receive one end of a suitable cylindrical cartridge, one of which is indicated at C, and locate the cartridge on the handle. Any other suitable form of seat could be employed, although the form shown is preferred.

A plunger mechanism is carried by the handle assembly and comprises a piston rod 15 slidingly carried in apertures through the handle and inner wall of the cup member I l. The rod may be rotated in the apertures. One end of the rod l5 has a piston l6 attached thereto and the opposite end has a turned portion I! which forms a hand grip for manipulating the rod. A series of ratchet teeth I9 are formed along one side of the rod I5, which teeth are adapted to be engaged by a trigger mechanism which moves the rod to the left, as viewed in the drawing.

The trigger mechanism comprises a channelshaped hand lever or trigger 2I pivoted between the sides of the handle II by a pin 22 and the trigger is normally urged from the handle by a spring 23 interposed between it and the handle. The upper end of the trigger extends beyond the pin 22 and carries a pawl 25, the nose of which is adapted to engage the teeth I9 of rod I5 when 7 the rod is angularly positioned with the teeth lowermost. A spring 25 i provided for yieldingly maintaining the pawl 25 in engagement with the rod I5. It will be apparent that when the trigger 2I is drawn to the handle I I as by gripping the trigger and handle in the hand, the rod I5 is moved a short distance to the left and into a cartridge in the member I4. Preferably, a retaining pawl 21 is pivoted between the walls of the handle assembly by a pin 28 and the nose of the retaining pawl is adapted to engage the teeth I9 when the teeth are lowermost and prevent movement of the rod to the right which might otherwisse occur when the trigger is released, due to the resilient nature of the material cartridge. The rod I5 may be disengaged from the pawls and moved to the right by turning the rod to disalign the teeth and pawls.

The pawl and rack structure shown is not essential to the invention as any other suitable clutching mechanism could be employed to connect the trigger and rod.

The cartridges of calking material which may be used with the calking gun may be of any suitable formation, and for the purposes of illustration, the cartridge C comprises an inexpensive tube 3 I, preferably formed of paper, and it is filled with a suitable calking compound. One end of the tube 3I referred to as the head end, is closed by a flanged end plate which frictionally engages the interior of the tube walls and which is engaged by the piston I6 and moved through the tube, to force the calking material from the other end or discharge end of the tube. The discharge end of the tube is closed by a plate 32 having a flange encircling the outer end edge of the tubular member 3I and, in one form of the invention, the plate 32 is provided with a discharge spout 33. The plane of the outer end of the spout slopes relative to the spout axis to facilitate the application of the calking material to crevices and the like.

Any suitable means may be employed to prevent loss of calking material through the spout during storage and shipment of the cartridge. For example, the spout may have a plug which can be forced from the spout when the piston is urged against the opposite end of the cartridge, or as an alternative construction a separate closure plate may be provided having a frangible portion which ruptures to provide an opening for the calking material to escape through the spout when appreciable force is applied to the material in the cartridge.

The head end of cartridge C is adapted to be held in the cup member I4 by a device comprising a resilient, wire bail 35 including two spaced coextensive legs 36, 31 interconnected by a yoke portion 38. The legs 36, 37 of the bail are pivotally attached to the handle II by forming loops or eyes 39 in the ends of the legs, which eyes are attached to the member I 4 by ears 40 struck from the sides of the member and folded over the portions of the wire bail forming the eyes. The ball yoke 38 preferably has an inverted U-shaped loop 42 which is adapted to rest against the base of the sprout 33.

A circular plate 44 is pivotally attached to the yoke 38 by tabs 45, 46 which are located on substantially a diametric axis of the plate and are struck from the plate and are folded over the yoke wire. The diameter of plate 44 is substantially the same as that of the cartridge and the plate has a U-shaped slot 4! adapted to receive the spout 33 'of the cartridge when the plate is positioned against the discharge end of the cartridge. In the preferred form of the invention, a forwardly extending lug 48 is provided on the plate which forms a hand grip by which the plate and bail may be raised and lowered to remove the plate from engagement with the discharge end of the cartridge.

It will be appreciated that the lengths of the cartridge C and the bail are such that when the head end of the cartridge is placed in the cup member I4, the bail may be swung to position plate 44 in registration and engagement with the discharge end of the cartridge so that the plate is urged against the cartridge end. It will be seen that the plate forms an abutment member with which the bail cooperates to urge the cartridge in the handle seat. By forming the bail of resilient wire, it resiliently urges the cartridges into the member I4 and although there may be minor discrepancies in the dimensions of the cartridges employed, the latter are firmly held to the handle assembly. It will be noted that by pivotally attaching the plate 44 to the yoke 38 the plate is self-centering on the end of the cartridge to provide substantially uniform engagement with the cartridge end wall.

In some instances, the user of the calking gun is apt to press the sloping end of the spout 33 against a surface having a crevice to be calked with such force that the spout may be loosened from the plate 32 by the lateral pressure. To obviate this injury to the spout, another form of bail yoke plate may be provided having reinforcing means for the spout, which plate is shown at 50 in Figs. 5, 6. The plate 50 is attached to the yoke 38 and has a forwardly projecting member 5| which is preferably formed of material cut from the plate to form a slot 52 which receives the spout 33. The projection 5| preferably conforms in shape to the outside of the spout 33 and is adapted to engage one side of the spout to reinforce or brace it against lateral pressures, thereby providing a more rigid spout structure. Obviously, the brace member 5| need not be integral with the plate, but could be formed separately and attached to the plate as by welding or brazing.

It may be desirable to provide a cartridge from which the spout is omitted and a spout could be provided on the bail 35 as shown in Fig, 7. In this construction a plate 55 is substituted for plate 44 and the plate 55 has a spout 56 attached thereto through which the calking material may flow when the plate 55 is engaged over the cartridge end. As in the case of the plate 44, plate 55 has a hand grip 5! by which the bail and plate may be raised and lowered into and out of engagement with the outer end of the cartridge, as described hereinbefore, with reference to plate 44.

From the foregoing description it will be apparent that all of the objects enumerated as well as others have been accomplished and that there has been provided an inexpensive easily operated dispensing device which provides for ready and secure connection of cartridges of calking material with the handle assembly. The invention further provides a rugged structure for dispensing material through a spout.

While the preferred forms of the invention have been described in considerable detail, it will be apparent that the invention is not limited to the constructions shown and it is my intention to cover hereby all adaptations, modifications and changes therein which come within the practice of those skilled in the art to which the invention relates and the scope of the appended claims.

Having thus described my invention, I claim:

1. In a dispensing apparatus for Viscous ma terial contained in a rigid cartridge having a head end and a discharge end, the combination of a handle having a seat adapted to engage the head end of the cartridge, a pusher carried by said handle and adapted to be advanced into the cartridge, mechanism operatively connected to said handle for controlling the advancing of said pusher, a wire bail anchored to the handle and having its intermediate portion adapted to be swung transversely of the length of the cartridge across the discharge end of a cartridge seated against the handle, said intermediate portion of said bail being looped, and a plate non-removably secured to said intermediate portion of the bail adapted to engage the discharge end of the cartridge and having an opening for receiving a spout associated with the cartridge end engaged by said plate, said looped part of said bail forming an opening in registration with the opening in said plate.

2. In a dispensing apparatus for viscous material contained in a cartridge having a head end and a discharge end including a spout, the combination of a handle having a seat adapted to receive the head end of the cartridge, a wire bail pivotally secured to said handle and having its intermediate portion adapted to extend across the discharge end of the cartridge, said intermediate portion of said bail being looped to extend about the spout of the cartridge, a plate carried by said intermediate portion in position to engage the discharge end of the cartridge, said plate having an opening for receiving the discharge spout of the cartridge, said plate having a forwardly extending member projecting from one side of the opening in said plate and adapted to engage a side of the spout projecting through the opening in said plate and reenforce the spout against a lateral force, said plate having a forwardly extending lip by which the same may be readily freed from the cartridge, and a manual operated device on the handle for extruding material from the cartridge.

3. In a dispensing apparatus for viscous material, a handle having a forwardly facing seat in which one end of a cartridge may be mounted, a wire bail having its free ends pivotally anchored to said handle and having its intermediate portion adapted to extend across the outer end of the cartridge, the intermediate portions of the bail being looped out of range of the cartridge, and a plate pivotally secured to the intermediate portion of the ball at opposite sides of the loop thereof and adapted to engage the outer end of the cartridge engaged in said seat.

4. In a dispensing apparatus for viscous material contained in a cartridge having a head end and a discharge end, the combination of a handle having a hand grip portion and a forwardly facing cartridge seat, a rod slidably mounted in the handle and extending through the cartridge seat, a lever pivoted to the handle, mechanism operable by the lever to feed the rod forwardly step by step, means for retaining the gain made in such feeding, a wire bail pivotally attached to opposite sides of said handle and having its intermediate portion adap-ted to overhang the end of the cartridge having its other end in the cartridge seat, a plate secured to the inner side of the intermediate portion of the bail and adapted to engage the far end of the cartridge engaged in the seat, said plate having an opening adapted to register with a central opening in the discharge end of the cartridge, and a spout occupying the opening in the plate and carried by the cartridge independently of the plate.

5. In a dispensing device for viscous material contained in a cartridge, a handle assembly having a cartridge seat, mechanism for forcing material from the cartridge having one end in said seat, and means holding the cartridge to said seat and including a plate movable into and out of registration with the other end of said cartridge, said plate having a projection extending outwardly thereof and adapted to engage one side of a spout associated with the cartridge and reinforce the spout against a lateral force.

6. In a dispensing device for viscous material contained in a cartridge, a handle assembly having a cartridge seat, mechanism for forcing material from a cartridge having one end in said seat, and means holding the cartridge in said seat and including a plate movable into and out of registration with the other end of said cartridge, said plate having a portion turned outwardly therefrom to provide an aperture in the plate to receive a spout associated with the cartridge and to form a projection adapted to engage one side of the spout to reinforce the spout against a lateral force.

7. In a dispensing device for viscous material, contained in a cartridge, a handle assembly having a cartridge seat, mechanism for forcing material from a cartridge having one end in said seat, and means holding the cartridge in said seat comprising, a bail pivotally connected at one end to said assembly, a plate attached to the yoke of the bail and movable into and out of registration with the other end of said cartridge by swinging the bail on its pivot, said plate having a projection extending outwardly thereof and adapted to engage one side of a spout associated with the cartridge and reinforce the spout against lateral force.

WILLIAM A. SHERBONDY.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,157,552 Kispert Oct. 19, 1915 1,279,069 Yoshida Sept. 17, 1918 2,100,091 Tear Nov. 23, 1937 2,115,591 Sherbondy Apr. 26, 1938 2,367,347 Good Jan. 16, 1945 2,421,711 Moots June 3, 1947

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