US2913151A - Combined paint and calking compound applicator - Google Patents

Description

NOV. 17, 1959' WISEMAN r 2,913,151

COMBINED PAINT AND CALKING COMPOUND APPLICATOR Filed June 3, 1957 2 Sheets-Sheet 1 Robert M. Wiseman Ja/m Troeger IN VEN TORJ BY Mal-1% Nov. 17, 1959 R. M. WISEMAN ETAL COMBINED PAINT AND CALKING COMPOUND APPLICATOR Filed June 3, 1957 2 Sheets-Sheet 2 r 1 1 m1 fl m, m m L /7 a m 0 A 4 m aw 5 m W5 4 WWW a 2 .0 v M .1 mm d Rh w w a E 1. v. 3 3 a .n r y H 4 w. Q 5 7 U. 4 H 7 6 9 a 5 m. F

United States Patent COMBINED PAINT AND CALKING COMPOUND APPLICATOR Robert M. Wiseman and John Troeger, Elkhart, Ind.

Application June 3, 1957, Serial No. 663,208

l Claim. (Cl. 222-323) Our invention relates to improvements in combined paint and calking compound applicators of the pistol grip gun type.

. The primary object of our invention is to provide an applicator of the pistol grip gun type adapted for use with cartridges of paintor calking compound to apply the paint or compound efficiently by operation of a squeeze bar forming part of the pistol grip and which is operatively connected to a screw feed plunger for forcing the paint or calking compound out of a cartridge by means whereby the squeeze bar is easily operated to obviate tiring of a hand grasping the pistol grip and squeezing the squeeze bar.

Another object is to provide an applicator for the above purposes which is readily convertible into either a paint applying gun or a calking compound gun adapted for using conventional calking compounds and homogenized paints.

Still another object is to provide in a gun type applicator -a screw feed plunger for forcing paint or calking compound out of cartridges and rack and pinion means for operating the plunger by a squeeze bar and whereby operation of the squeeze bar and plunger is rendered easy by a hand grasping the pistol grip and squeezing the squeeze bar.

Still another object is to provide in a gun type applicator a paint applying head which is rendered highly efficient by being constructed and arranged for applying a larger area uniformly than present day paint heads of paint applicators.

Yet another object is to provide a combined paint and calking compound applicator for the foregoing purposes which is of comparatively simple construction, inexpensive to manufacture and not liable to get out of order.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure l is a view in plan of our improved applicator in the preferred embodiment thereof;

Figure 2 is a view in side elevation;

Figure 3 is an enlarged view in vertical longitudinal section taken on the line 33 of Figure 1;

Figure 4 is a view in vertical section taken on the line 4--4 of Figure 3;

Figure 5 is a view in vertical cross section taken on the line 55 of Figure 3;

Figure 6 is an enlarged view in horizontal section taken on the line 6-6 of Figure 2;

Figure 7 is an enlarged fragmentary view in vertical section taken on the line 77 of Figure 4;

Figure 8 is an enlarged view in front elevation of the paint applying head; and

Figure 9 is a fragmentary exploded View in perspective partly in section of parts of the paint applying head.

Referring to the drawings by numerals, the illustrated ice embodiment of our improved applicator designated generally by the numeral 1 comprises a cartridge holding trough 3 or cradle of semi-circular cross section having a front end disk 5 provided with an axial, forwardly extending and externally threaded nipple 7 for discharge of paint or calking compound therethrough, said trough 3 also having an axially apertured rear end disk 9 rising therefrom. The trough 3 is designed to support therein the conventional paint or calking compound cartridge 11 with its front, tapered discharge nipple 13 wedged into the nipple 7, for discharging the paint or compound as the usual bottom follower 15 of the cartridge is pushedforwardly.

A forwardly opening hand grip channelbar 17 at the rear end of the trough 3 depends from said trough at substantially a right angle thereto and is provided with an upstanding circular extension 19 axially aligned with the trough 3 and formed integrally therewith and which provides together with the rear end disk 9 an annular chamber 21 at the rear end of the trough 3 opening into the hand grip bar 17 and for a purpose presently seen.

The hand grip bar 17 is preferably of rectangular cross section and a similarly shaped rearwardly opening squeeze bar 23 substantially parallel therewith is fitted in the front of the hand grip bar 17 to extend out of the same and is slidable rearwardly and forwardly therein. The hand grip and squeeze bars 17, 23 form a pistol grip as will be clear on a gun barrel formed by the trough 3 and extension 19. A pair of upper and lower lateral guide rods 25 on the squeeze bar 23 slidably extend rearwardly into lateral guide sleeves 27 on the hand grip bar to slidably support the squeeze bar 23 and tension coil springs 29 on the guide rods 25 between the squeeze bar 23 and the guide sleeves 27 to slide the squeeze bar 23 forwardly.

The screw feed plunger designated generally by the numeral 31 comprises a screw feed shaft 33 slidably extended through axial apertures 35, 37 in the rear end disk 9 and the rear side of the chamber 21 axially of the trough 3 and which is provided on its front end with a pusher disk 39 for engaging and pushing the bottom 15 a of the cartridge 11 forwardly in response to forward screw feed of the shaft 33.

The squeeze bar 23 is operatively connected to the screw feed shaft 33 to feed the same forwardly in response to rearward sliding of the squeeze bar 23 and by means as follows.

A link 41 pivoted at one end as at 43 in the squeeze bar 23 inclines upwardly and rearwardly into the hand grip bar 17 and is pivoted at its other end, as at 45, to an intermediate part of a rack bar 47 to slide said bar 47 upwardly and downwardly endwise in guides 49 fixed in the hand grip bar 17.

The rack bar 47 is disposed vertically in the hand grip bar 17 and extends upwardly into the chamber 21 into meshing engagement with a gear pinion 51 freely rotatable and slidable on the shaft 35 and provided on one side with ratchet teeth 53 normally engaged with ratchet teeth 55 on an annular drive disk 57 threadedly engaged with the shaft 33 for rotation in the rear of the pinion 51 to feed said shaft 33 forwardly when said disk 57 is rotated in one direction by upward movement of the rack bar 47. A coil spring 59 on the shaft 53 between the pinion 51 and the rear end disk 9 yieldingly urges the pinion 51 toward the disk 57 to engage the ratchet teeth 53, 55.

A hand wheel 61 on the rear end of the shaft 33 provides for screw feed of said shaft rearwardly in the disk 57 to retract the plunger 31 to a starting position.

The applicator paint applying head designated generally by the numeral 63 comprises a hollow elongated distributor member 65 of rectangular form closed at its ends with a flat back 67 and a transversely convex front Patented Nov. 17, 1959 side 68 provided with a longitudinal central row of discharge holes 69- extending from end to end of the member 65, and longitudinal front edge channels 71 also extend from end to end of member 65. An elongated rectangular applicator pad 73- of suitable stiff fabric or the like is slidably removablyfitted at its longitudinal edges in the channels 71 for removal and replacement in front of the member 65 and is provided with a central longitudinal closed end slot 75 opposite the holes 69 through which paint may discharge from the slot 69 between rows of nap 77 on the pad 73 at opposite sides of the row of discharge holes 69 to be applied by rubbing the pad over a surfaceto be painted while rolling the pad transversely against the surface.

The distributor member 65 has a rear tubular shank 79 on which the member 65 is tilted transversely to facilitate its application to a surface with a rolling action and the shank is detachably attached by a flared rear end 81 therein and a cone nut 83 to the nipple 7so that said shank 79 extends forwardly of the trough.

The operation of our invention will be readily understood. In painting, a cartridge 11 of paint is placed in the trough 3 with the plunger 31 retracted as shown in Figure 1. The squeeze bar'23 is intermittently squeezed by a hand grasping the hand grip bar 17 to slide said bar 23 rearwardly in said bar 17. Rearward sliding of the squeeze bar 23 causes the link 41 to thrust upwardly against the rack bar 47'to move said bar 47 upwardly and the rack bar 47' rotates the gear pinion 51 in a direction such that the drive disk 57 is rotated in a corresponding direction by the ratchet teeth 53, 55 to feed the screw feed shaft 33 forwardly. This advances the pusher disk 39 to force the follower bottom forwardly in the cartridge 11 to force paint through the nipples 7, 3 and the shank 79 into the distributor member 67 to issue therefrom out of the holes 69 and opposite slot 75 for smoothing against a surface by the pad 73 with a rolling rubbing action of the pad.

When pressure against the squeeze bar 23 is released, the spring 25 forces the same forwardly, the link 41 pulls the ratchet bar 47 downwardly to rotate the pinion 51- in a direction such that the ratchet teeth 53 ratchet idly over the ratchet teeth 55 and the drive disk 57 therefore is idle. During this operation the pinion 51 slides laterally forwardly on the shaft 33 in opposition to the spring 59 and relative to the rack bar 47. The screw feed shaft 33 may be retracted to retract the prober disk 39 by turning of the hand wheel 61.

By detaching the shank 79 from the nipple 7, the applicator may be converted into a calking gun operative in a manner which will be clear from the foregoing to discharge calking compound from a calking compound cartridge out of the nipple 7.'

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and. described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope oftheinvention as claimed.

What is claimed as new isas follows:

An applicator comprising a trough for supporting a cartridge of liquid or viscous compound and having a front discharge nipple for receiving a front discharge nipple on the cartridge, a hand grip channel bar depending from said trough, a channeled squeeze barparalleling the hand grip bar and movable inwardly and outwardly thereof, a plunger for moving a follower forwardly in the cartridge to discharge liquid or viscous compound out of the nipple on the cartridge and including a screw feed shaft movable forwardly in the trough, and means for moving the screw feed shaft forwardly intermittently in response to inward and outward movement of said squeeze bar comprising a one way drive ratchet on said shaft including a driving gear pinion, a rack bar meshing with said pinion and vertically sildably mounted in said hand grip bar, spring loaded guide means in said hand grip bar and squeeze bar, respectively for guidingly moving said squeeze bar outwardly and maintaining said squeeze bar parallel with the hand grip bar, and aljnlg terminally pivoted to said rack and squeeze bars respectively, in inclined position relative thereto for pushing and pulling said rack bar in opposite directions in response to inward and outward movement of said squeeze bar.

References Cited in the file of this patent UNITED STATES PATENTS 1,498,246 Spencer June 17, 1924 1,663,338 Gagne Mar. 20, 1928 2,070,206 Hudson Feb. 9, 1937 2,090,644 Seeberger Aug. 24, 1937 2,788,159 Crewe Apr. 9, 1 957 FOREIGN PATENTS 317,650 Great Britain Aug. 22, 1929 518,022 Great Britain Feb. 15, 1940

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