US1497264A - Spray syringe - Google Patents

Description

June 10, 1924. 1,497,264

l. Q. GURNEE ET AL SPRAY' SYRINGE Filed Oct. 20, 1922 3512i, their SMOM/w16,

Patented June 10, 1924.

UNTE STATES PATENT OFFCE.

y ISAAC Q. GURNEE, OF BUTLER, NEW JERSEY, AND ALBERT A. SMITH, OF NEW AV EN, CONNECTICUT, ASSIGNOBS TO SUPERIOR HARD RUBBER COMPANY, OF BUTLER, NEW JERSEY, A CORFORATION OF NEW JERSEY.

SPRAY SYRINGE.

Application filed October 20, 1922. Serial No. 595,785.

Toall whom it may concern Be it known' that we, ISAAC Q. GURNEE and ALBERT A. SMITH, citizens of the United States, residing at Butler, in the count-y of .Morris and State of New Jersey, and at ments in Spray Syringes, of whiohthe fol-` lowing is a specification.

`This invention relates to an improved syringe; particularly a syringe intended for rigating and flushing out the internal cavities and passages of the human body.

An object of this invention is to provide a syringe capable of discharging a liquid in the formof a spiral spray, and of such construction that the inside parts through which extend the outlet ducts of the delivery nozzle of the syringe are tightly and permanently secured to the nozzle in such a mannei' that all risk of their getting loose and becoming detached is entirely obviated, the nozzle and all its parts and in fact the complete syringe being constituted of a material that will at no point afford a lodgment to dust, dirt or any other foreign substances,

either within or upon the surface.

. Otherobiects and advantages of this invention will appear in the following description, taken ywith the accompanying drawings, upon whichrthe preferred embodiment of our invention is illustrated, and

. the novel features of our invention are defined in the appended claims. But this disclosure vis explanatory only and we may make changes falling within the scope and spirit of the invention to the full extent indicated by the broad and general meanings of the terms in which the claims are expressed.

On the drawings:

Figure 1 is a side view of a syringe of the type to which our invention belongs;

Figure 2 is a side elevation on a larger scale of the delivery nozzle of the syringe; Figure 3 is a front View of said nozzle;

Figure 4 is a section on the line 4-'4 of Figure 3;

Figure 5 is a front elevation of the inside core of the nozzle, carrying the outlet ducts and having a deflector or head for directing the jets from the. ducts away from the axis of the nozzle.

Figure 6 is a side view of said core; and

Figure 7 a rear view thereof.

The same numerals identify the same parts throughout.

Intlie particular description of the drawings we use the numeral r1 to indicate a tube or pipe, preferably of hard rubber, bearing at one end a rubber bulb or reservoir2, and at the other a delivery nozzle including a tip 3. The bulb 2 can be secured to the pipe 1 by having a neck which is slipped over a flange, not shown, at the extremity'of'the tube 1, in the usual way, and the tip 3 at the opposite extremity is preferably detachable so that it can be dismounted for inspection and cleaning.

This tip 3 has a form of a tubular section from one end of which projects a reduced threaded neck 4; there being a shoulder 5 at the union of lthe neck 4with the body of the tip so that when the tip is screwedk into the end of the tube 1, which is provided with internal threads to be engaged by the threads on the outside of the neck 4, the

shoulder 5 will abut the extremity of 'the' tube 1 and form a'joint or seam which can be made as tight as necessary. Through the n neck 4 extends a` bore 6 whichy may be approximately of the same diameter as the bore through the tube 1, and inside the body of the tip-3 is a larger bore 7 which communicates with the bore 6 and which extends from the open mouth of the tip yinwardr as far as the internal shoulder 8. The tip 3 receives and has securedtherein a core 9 rofv such construction that Iwhen the bulb 2 is filled with liquid and then compressed,lthe liquid will be expelled from the syringe around the inside of the rim of the tip 3, and.

in the form of a number of separate streamswhich take a helical direction and at the same time fly away from the axis of the tip, and unite to form a voluminous spray, globular in form, and consisting of a number of spiral jets of liquid that will sufficiently reach and cleanse all the parts to which the liquid is supplied. The tip 3 and core 9 constitute the outlet nozzle of the syringe.

One part of the core 9 is in the form of a cylindrical disk or button 10 of less thickness than the distance between the shoulder 8 and the rim at the open mouth of the tip 3. In the cylindrical surface of this disk 10 are fashioned a number of cuts or recesses 11,

these recesses 11 being spaced at equidistant intervals apart around the circumference of the disk, and being diagonally arranged; so that they will not be parallel with the axis of the tip, but Will extend spirally with respect thereto when the core is thrust in cent end of the bore 6 and at the opposite side of the disk 10 the core will be provided with a head 13 in central position and of larger diameter than the rprojection 12. This head presents to the adjacent face of the disk l0 a conical surface 14 so that as the separate streams of liquid escape from the outlet ducts 11 they will strike the surface 14 and be directed away from the axis of the nozzle.k The head 13 and projection 12 may be in one piece, the projection making a shank or neck for the head, and passing through a central opening in the disk 10.

The tip 3kreceives the core 9 in such a manner that all risk of the core 9 becoming loose in the tip or detached is completely obviated. As shown in Figure 4C, the disk 10 will occupy such a position that there will be a small space between the shoulder 8 and the adjacent face of the disk; and the projection 12, which will be of less diameter than the inside of the bore 6, will just enter the mouth of thebore 6. /Vith the tip 3 and core 9 constructed of hard rubber, for example, the tip 3 after being molded can be softened; then the core 9 can be pushed into the mouth of the tip the required distance. When so inserted the` core 9 will be in hardened condition and will snugly fit the tip 3, which is usually softened by heating and therefore expanded somewhat. After receiving the core 9, thetip is then cooled and hardened again, and the contraction which it undergoes makesv it. engage the rcore so tightly that the core cannot afterwards come out. In a similar manner the disk 10 can be shrunken the the projection 12. t r

The syringe .can be provided withthe shank, making usual rubber guard 15, mounted on the pipe 1 in front of the bulb 2. To fill the syringe, the nozzle can simply be taken olf and the bulb collapsed so as to allow it to draw in through the tube a full charge of liquid. This method enables the bulb to be filled more quickly, and then the replacement of the nozzle makes the syringe ready for use. Pressure upon the bulb Q, will force the liquid through the pipe 1 and bore 6 into the enlarged bore 7 of the nozzle, between the disk 10 and the shoulder 8. There the liquid will spread out and flow through the ducts 11; and as it escapes from these ducts at high velocity, the action of the conical surface y14 will force the jets outward away from the axis of the nozzle so that the 'jets will have both a spiral direction and an expanding tendency, and thus give the most thorough cleansing action, The projection 12 acts in some degree to direct the water outward from the axis of the tip, as it flows from the bore 6 into the bore 7, past the shoulder 8; and thus to the inner ends of the ducts or recesses 11.

Our syringe is particularly adopted for vaginal use but can of course be made for other passages of the body as well.

Having described our invention, what we believe to be new and desire to Secure and protect by Letters Patent of the United States is: f

A nozzle for a spray syringe comprising a removable tip having a bore terminating at a shoulder therein, a neck attached tothe tip and having a relatively smaller bore therethrough beginning at said shoulder, a disk xed inside the first-named bore and spaced from the shoulder, the periphery of the disk tightly engaging the inside of the tip, the disk having recesses in its circumference to provide spiral ducts, and a head presenting a conical deflecting surface to the outlet ends of said ducts and having a shank extending through the disk and projecting into the bore of lsaid neck.

ln witness whereof, we have signed our names t'o'this specilication this 10th day of @ctober 1922. v

Isaac o. GURNEE. ALBERT a. sMrTH;

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