US1626096A - Spray gun - Google Patents

Description

1,626,096 April 26 1927 c, REICHENBACH SPRAY GUN Filed Auer. 14. 1925 2 Sheets-Sheet l April 26,1927. 1,626,096

C. L REICHENBACH SPRAY GUN Filed Aug. 14. 1925 2 Sheets-5h66?,

Patented Apr. 26, 1927.

UNITED STATES PATENT OFFICE.

CARL L. REICHENBACH, OF YONKERS, NEW YORK, ASSIGNOR TO ECLIPSE AIR BRUSH COMPANY, 01T NEW'ARK, NEV JERSEY.

SPRAY GUN.

Application filed August 14, 1925.

This invention relates to au improved spray gun employed in applying pant and like substances and is constructed to enable. an inexpensive aud quick assembling oli the parts and which can be quickly taken apart and pnt together again. which is ol decided advantage both in cleaning the gun and also in case repairs are necessary.

lt will also be noted that with this gun a damaged or broken part can be easily replaced by a new one without the necesstlv of returning the gun to the maker or dealer for such repair.

The gun consists ot' three major parts. a barrel7 a sleeve to tit into the barrel, aud a stem to tit into the sleeve these pars,

when separated, presentingl .simple ea:` v cleaned ont elements and parts which need only a wrench tor asseml'iling and taking down.

The .invention is illustrated in the accompanying drawings in which VFigure l is a side view .of a gun made acci'ufding to my invention. Figure j a side view ol' a sleeve that fits into the barrel olf the gua. Figure 3 is a side view ot a stem that lits into the sleeve shown in Figure 2. Figfjnre 4l is a central vertical section taken through Figure 1 and Figure 5 is a cross section on line 5-5 in Figure l.

The gun embodies a barrel 10 which is provided at one end with a handle ll, these being preferably made in one piece. lnside of the barrel is a sleeve 1Q which is spaced from the barrel so as to form a duct tor the passage ot compressed air, this duct lieing continued by the passages 123 which extend to the front tapered end let ot the sleeve.

This tapered frontend receives a nozzle 15, the parts being spaced so that air can pass around the tip of the sleeve and within the nozzle and emerge through the outlet 16 after it vaporizes material such as paint or the like which passes out through the outlet port 17 at the front end ot' the sleeve7 the sleeve itself containing` a chamber The sleeve also has an inlet port 10 which is usually made to receive the screw connection of the pipe which conducts tne paint to the gun.

The sleeve is readily insertible in the barrel, the reduced part Q0 fitting into the front end of the barrel usually by a slight taper,

Serial No. 50,192.

thimble 'l'orlns one abutment and the collar 26 'l'orms the other abutment for the .spring 2.7 so that the valve 2-1 is normally held shut and released.

An adjustable means is fastened on the back end Q8 ot the stem 23 and l show a nut 29 t'or this purpose. The air inlet is preferably arranged in the handle and comprises a passage 30 which hasI a valve 3l located in it, the valve being` held shut by a spring held in place by a plug or screw 33. The valve 3l includes the stem 34 which projects from the front end ot' the handle near the barrel. i

A trigger 35 is mounted in front oll the handle in a position to be readily grasped by the fore-finger of the hand and is usually forked with the two arms 36 pivoted as at 37 to the barrel, the trigger normally resting against the stem 34 ot' the valve 31. Piv` oted to the handle as at 38 is the yoke 39, the yoke having a recessed part 40 in the cross strip 41 at the rear so that it can be forced down to straddle the nut and when pushed back it engages the nut which in turn pulls back on the stem 23 to open the valve 24..

I usually provide a space as at 42 so that there is lost motion when the trigger is lirst operated, this permitting the air to ioat first and then the paint outlet 24 is opened immediately7 after. The adjustment ot' the nut 29, of course, fixes the amount ot' lost motion that was to be allowed so that the amount of paint can be varied, this variation being caused by the character of the material to be applied and the speed of the operation.

The ring 43 is a handy means for suspending the gun when it is not in use or for suspending the gun when it is to be used All in a fixed posit-ion. The end of the handle is provided with a suitable connection ila-l; for the attachment ol: the air line.

This Oun ie made of but ferr parte and ie very elheient. lt will be noted7 in addition to this, that. by .swinging the )folie il?) npnf'ard aS shown in dotted outline in Figure l, all that needs to he done is to unseren' the mit and the stem 22:3 and the springl 2T 'which are on itl are readily7 Withdrawn frein the Sleeve and then after unecrewing the nut 2l ythe sleeve can loe pulled out or the barrel l() and the parte can he emparated ae ahnen in Figures 2 and E3 and can l easily cleaiied when desired, usually by Simply dippii'ig` them or fratiirringg;Y them in a Solvent ot the material that has heen need.

Another adrantaee ont this run is that in aree oit breakage ot one olt the` parte it need not he returned to the 'liaelery Yfor repairi 'which is the present usageg lint a duplicate can he secured by the neer olf the gun and the services of an expert repair man are not eesential.

I claim:

l. A Spray gun eoi'nprieii e a barrel a D l x 7, Sleeve .meertable m :the hai-rel troni the front, and extending tl'ieretliroiigl'h, merlin:

at the hack ot' the sleeve Afor locking it in platee, and a Stem ineertahle into th alot-'rv 'from the bach, the sleeve haringf; a seat against. Whieh the end ot the stem can clofee, a nozzle on. the liront of the alcove, the sleeve hzwing,` paseagee to convey air to the nozzle, and a trigger 'for operating;- the .et/em.

2. A .Spray gun comprising a harrel with a handle at one end, a Sleeve iliswl'alile in, the front end ol the barrel and secured at 'its rear end to the rea-r end of the barrel and spaced 'from the barrel to term an air dnrt, the sleeve having a central outlet port, a :stein insertahle 'from the rear end hito the Sleeve and adapted `to close the outlet port aforesaid and having its rear end secured to the sleeve and projecting therefrom, `a

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valved air passage to the space between the sleeve and barrel, the sleeve having an inl-et for material in front of the barrel, a trigger on the barrel and havingl connections to operate the valve in the air passage and to operate the Stem.

t3. il epi-ay gun comprising` a barrel with a handle at one end7 a Sleeve extending through the barrel and readily insertable and removable relative thereto, the sleeve extending; beyond the barrel at hoth ends, the front having an inlet pipe and an outvet port and adapted to receive a nozzle, a means on the projecting rear end to secure the barrel .in place, a stein ineertable into the rear end et the barrel and haring its trent end disposed so as; to he Seated in the outlet port ot the Sleeve to t'orm a valve, a collar on the Stein, a thin'ible on the stein and Screwed into the rear end et the sleeve, a ,api-ing hetiroen the thimhle and the collar, an adjustable nut on the projecting` yrear end et the stem, a trigger on the barrel :and a yoke piroted on 'the trigger and -hai'fing its rear end adapted to etraddle the Stem and to engage the nut on the stem.

L al ,epray gun comprising a ,stock and a iai-rel projt-ieting forwardly therefrom7 a. @leere insertahle :from the front-ot the barrel and carrying a nozzle att-he frontend and valve Seat on the inside in rear ot' `the oncle, the barrel and Sleeve having an anular apar-e between them, a `valve etem ineertahh, from the rear ot' the barrel and projecting therefrom, the inner end o'lI the ralr'e stem heiligv adapted for engagement with the valve Seat, the barrel :having an inlet lior material in rear ot the Vvalve Seat, waived means 'for adn'iit-ting air to :the Space between the barrel and the sleeve, -and a trigger 'for operating an inlet Valve and Athe valve ,el-em.

ln testimony whereof l allie: my Signature.

CARL L. RECHENBACH.

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