US1712195A

US1712195A - Fruit-spray gun

Info

Publication number: US1712195A
Authority: US
Inventors: George C Brown
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-12-20
Filing date: 1927-12-20
Publication date: 1929-05-07
Anticipated expiration: 1946-05-07

Description

Patented May 7, 1929.

ai sara FRUIT-SPRAY GUN.

Application lerl December 2G, 1927. Serial No. 241,374'.

By way of explanation, it may be statedA thatl there are on the market, thousands of nozzles or guns, socalled, which are usedfor spraying fruit trees. Such articles are provided with a thin disk having a small orifice through which the liquid is discharged. This orifice often closes up, and it is necessary to remove the disk and clean out the orifice. In order that the disk may be re-` moved, the How through the nozzle must Abe stopped, and this invention `aims to provide a simple auxiliary valve mechanism for stopping the flow through the nozzle or gun, as and for thc purpose explained. f

Itis within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the invention appertains. y

lVith the above and other objects in view which will Vappear asthe description pro-V ceeds, the invention resides in the combination and arrangement of parts and in the f details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein'disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings Figure 1 shows in side elevation, a spray gun equipped with the device forming the subject matter of this application; and

, Figure 2 is a longitudinal section of the gun on an enlarged scale, parts being in elevation, and parts being broken away.v

There are inluse at the present time, thousands of spray guns including a removable disk 3 having a reduced opening 4 through which the liquid proceeds. The construcbodied varies through wide limits, but spray guns, generally, are reducible to the general type shown in the drawings, the spray gun there being shown as including a body B made up of a tubular member 1 on which a head 2 is mounted, the disk 3 being held on the forward end of the head 2 by any suitable detachable means 5, such as a threaded ring.

The rear end of the tubulaimember 1 is contion of the gun wherein the disk 3 is em Way, with thecasingG. On the forward end of the plunger 9 there is a main valve 12'which cooperates with the disk 3 to close the opening 4 when the plunger 9 is rotated by means' of the handle 10, and is advanced because of the threaded connection shown at 11. It is with such a gun, or with a similarly constructed gun, that the device forming the subject matter of this'application is adapted to be assembled.

1n carrying out the present invention, a

tubular bushing l5, made of brass or any otherv suitable material, is secured in any preferred way in the forward end of .the tubular member 1. The bushing or tubular element 15 has an enlarged head 16 which abuts against the forward end of the tubular -member 1, or against the adjacent portion of the casing 6, the enlarged head 16 affording reinforcement, for the format-ion of a Haired seat 17 adapted to cooperate with the conical part 18 of an auxiliary valve 19 secured to the plunger 9 behind the main valve 12 and in spaced relation to the valve 12.

When the operator wishes to stop the flow through the body of the gun, so that he can take od the ring vand remove the disk 3 to clean out the opening i in the disk, the plunger 9 simply is retracted unt-il the conical partV 18 of the plunger cooperates with the seat 17 in the bushing .15, and then the flow through the gun ceases. It has been purposed heretofore to place a cut-off valve (not shown) in thehose 14 that is attached to thelateral inlet 7, but such a valve is inconvenient, in

that it is exposed, likely to get out oforder, f

and Vlikely to be operated accidentally. In the device forming the'rsubject matter of this application, the simple auxiliaryvalve 19 is housed within the body of the gun and will last a long time, without getting out of order or requiring attention. rlhe bushingv 15 and vthe auxiliary valve 19 may be applied readily to guns that arc alreadyl made, or the parts specified may, of course, be built into a new gun. The manufacturer' or the useris not called upon to throu1 away any satisfactory gun that he has already, since the valvev19 p may be applied to the plunger of any standard spray gun, and the bushing 15 may be secured in the tubular part of any standard vided With a thickened head in which a seat is formed, the head abutting against the end.

of the tubular member, and a valve on the plunger and cooperating, with the seat to close the .flow of liquidr through. the gunI when the plunger is retracted.V

2. In a spray gun Comprising abody includinga tubularmemben, ahead on the tubular member, a removable disk having a-dscharge opening, means torholding the disk detachably on the head, and a longitudinally movable plunger that is advanced to close the opening; a'v tubular bushing secured in the forward end of the tubular member and supplied With a Seat at its outer end, and a valve mounted on the plunger and located in the head, the valve Cooperating with the seat to stopthe flow through the gun Wheny the plunger is retracted.

In'testimonythat I elaim theforegoing as my own, I have hereto affixed my signature.

GEQRGE C. BROVN,