US1669568A - Closure - Google Patents

Description

May 15, 1 8.

CL URE Filed June 1 926 the invention, as

PATENT OFFICE.

HOWARD H. MOGEE, OF NEW YORK, N. Y.

CLOSURE.

Application fled June 1,

This invention relates to a novel and improved closure particularly adapted to control the passage of a fluid through a flexible casin such as a rubber tube. The invention may e employed in a variety of locations, but for the purposes of illustration I shall describe it as used with a syringe or hot water bag, this being the situation in which the invention finds particular utility.

The principal object of my invention is to provide a valve which may be employed in connection with a flexible casing and actuated by pressure exerted longitudinally of the casing. Valves of known construction are usually operated by handles or else if they are automatic in construction they require a separate spring element and other complicated structure to insure their operation. According to my invention I so construct the casing in which the valve is disposed that a portion of the casing will give the desired spring action, thus eliminating the separate spring elements which have been found necessary 1n the prior art constructions.

A further object of my invention is toprovide a valve which may be used in connection with a syringe or the like and which may be operated solel by pressure exerted longitudinally thereo this pressure being exerted by contact of the structure with some part of the body of the user. I

The invention will be best understood by referring to the accompanying drawing in which I have shown selected embodiments of my invention, and in which Figure 1 shows one form of my invention as applied to a syringe bag.

Figure 2 is a longitudinal section through the invention, as shown in Figure 1, and upon an enlarged scale, the valve being shown closed.

Figure 3 is a view similar to Figure 2 but showing the valve opened.

Figure 4 is a view similar to Figure 1 but showing a difi'erent form of my invention, this form being applied to an ordinary water bag.

Figure 5 is a longitudinal view through shown in Figure 4, and on an enlarged scale, the valve being shown closed.

Figure 6 is a view corresponding to Figure 5 but showing the valve opened.

Figure 7 is a perspective view of the valve shown in Figures 2, 3, 5 and 6.

Referring now to Figures 1, 2 and 3, the

1926. Serial No. 118,004

numeral 1 designates a syringe bag oi ordinary form to which, for the purposes of illustration, I have shown my invention as being applied. The numeral 2 designates the discharge nozzle, which vmay be of usual form and which is connected to the bag 1 by means of a flexible tube 3, as is well known in the art. Disposed between the tube 3 and nozzle 2 is a casing 4 which may conveniently be of one piece of rubber and which comprises a chamber 5 having flexible and resilient walls 15 and 17 for a purpose which will presently appear.

The casing 4 is provided adjacent one end with a longitudinal bore 6 terminating in a valve chamber 7 which in turn is connected with the chamber 5 by the bore 8. The chamber 5 terminates in a socket 9 which receives the nozzle 2 in the usual and well known manner. Received within the bore 8 is the valve-stem 10 having the valve-head 11 disposed within the valve chamber 7 the valve seat 12 being formed as part of the wall of the chamber. The valve also comprises a foot 13 which is preferably of the concavo-convex form shown and has its opposite edges 14 contacting with the upper wall 15 of the chamber 5. The foot has the sides 16 cut away to permit the passage of fluid thereby, although other suitable means may be provided for the same purpose.

The body of the casing 4 is relatively rigid, whereas the walls 15 and 17 of the chamber 5 are relatively flexible and resilient, and the latter normally occupy the position shown in Figure 2, wherein the valve is maintained in closed position by engagement between the wall 15 and the edges 14 of the foot 13. The opening of the valve is effected by pressure applied to the foot or anchor 13 either by moving pipe 2 longitudinally and thereby moving wall 17 into pressing contact with the foot 13, or by applying the pressure directly to wall 17. In either case,. the walls 17 and 15 will be deformed from the position shown in Fig. 2 to that shown in Fig. 3. The valve will remain open so long as the pressure is maintained against the foot 13. When the pressure is removed, wall 15, by reason of its elasticity, will restore the valve to its normal closed position. The edges 14 of the foot still contact with the upper wall 15 of the chamber 5 and fluid may pass freely through the bore 8 into the chamber 5 and thus into the nozzle 2. Passage by the foot 13 is permitted because of the cut away sides 16 thereof. It will be noted that the valve is independent of, that is, unattached to, the casin and is movable longitudinally therein. 150, that the edges 14 of the member 13 are always in engagement with the lienble and resilient wall 15 so that the pressure thereof on such edges will immediately effeet a closing of the valve when the pressure which caused the opening of the valve is removed.

Referring now to the embodiment-shown in Figures 4, 5 and 6, the numeral 18 des1gnates a water bag of usual form, to which is applied my invention in the form acasing 19, preferably made of one plece of material and which, if desired, may be made integral with the bag, as shown. In this form the same type of valve is employed as in the other embodiment, this valve having the head 11, stem 10 and foot 13, the neck 10 being disposed within a bore 20 in the casing. The portion 21 of the casing is relatively rigid, and secured to the lower end thereof is a relatively flexible diaphragm 22 forming the upper wall of the chamber. 23 which has the relatively rigid lower wall 24. The chamber 23 terminates in a bore 25 forming a nozzle, through which a liquid may be poured into the bag or discharged therefrom. In using this form of my invention pressure is applied longitudinally to the nozzle as in the other embodiment, and this pressure causes the various parts to change from the relation shown in Figure 5 to the relation shown in Figure 6., When in the position shown in Figure 5'the resilient wall 22 will hold the foot of the valve in the position shown, thus resiliently holding the head 11 upon the seat 12. However, when pressure is exerted longitudinally of the casing the diaphragm 22 will snap from the position shown in F igure 5 to that shown in Figure 6. This snap action is important in that it gives a quick, positive movement to the valve causing an abrupt opening or closing thereof. The bottom wall 24 of the chamber 23 will then engage the foot 13 and open the valve, in a manner similar to that described in connection with the embodiment of Figures 1, 2 and 3. When the parts are in the positions shown in Figure 6, fluid may pass freely into the bag from.

From the above it will be apparent that I have devised a closure which is of extremely simple construction and in which the number of elements has been reduced to a minimum. .The operation of the device is as simple as is its construction, all that is necessary being an application of the necessary.

force longitudinally of the valve structure.

In the use of my invention shown in Figures 4, 5 and 6 a hot water bag,

18 or may be discharged there-- for example, may

be filled, the parts for this purpose being moved to sition as shown in Figure 6, in which position they will remain. When it is desired to close the valve all that is necessary is to pull the nozzle 25 away from the bag, when the diaphragm 22 will snap the valve to the position shown in Figure 5. The'valve shown in this embodiment must be either closed or open; the diaphragm 22 cannot occupy an intermediate position because of its construction as a part of a sphere.

lVhen m invention is employed with a syringe suc 1 as shown in Figures 1, 2 and 3 the necessary pressure may be exerted with the fingers or by contact of the wall 17 of the casing with another part of the users body. This does away with any annoyance arising from the use of a separate valve. The cessation of flow of the liquid throu h the nozzle will be instantaneous and ependent solely upon the release of pressure.

While I have shown one form of my invention as applied to a syringe be and anotherform as applied to a water ag, it is obvious that either form may be .put to either use and it is also obvious that both forms are adapted to a variety of uses, those shown and described being merely illustrative.

I am aware that various changes in details may be made within the scope of my invention and I, therefore, myself except by the claim:

.1. A closure comprising a casing having a chamber with a valve seat, and a valve rindependent of the casing and movable longitudinally therein, a part of the wall of said casing being flexible and resilient and adapted to bear against the valve to hold it in a given position.

2. A closure comprising a casing having a relatively rigid section forming a valve seat, a relatively flexible and resilient section, and a valve independent of the casing and movable therein, said flexible and resilient section adapted to bear against the valve to hold it in a given position.

A closure comprising a casing having an unattached valve therein, and having also a flexible and resilient portion adapted to bear against the valve to hold it in a given position, but permit movement thereof upon application of longitudinal pressure to the casing.

4. A closure comprising a casing having a valve chamber, a valve unattached to the casing and coacting with a seat in said chamber, a second chamber having a flexible and resilient wall, the valve stem being disposed in said second chamber and engaging said wall, the resiliency ofsaid wall being adapted toimaintain said valve in a given position. v

appended claims.

do not intend to limit 5. A closure comprising a casing having a chamber with a valve seat, and a valve independent of the casing and movable therein into seated and unseated positions, the wall of the casing normally shaped to hold the valve seated, and capable of manipulation to unseat the valve.

I of such I 7. A c osure COIIlPlISlIlg a casing having 6. A closure comprising a casing having two chambers, a valve independent of the casing and movable longitudinally therein and havin its head in one and its stem extending into the other of said chambers, the latter of said chambers having a flexible and resilient wall adapted to engage the valve stem whereby, upon the application of longitudinal pressure to the casing, the

valve will be opened and upon the release ressure the valve will be closed.

tudinal pressure applied to the casing will deform said walls to efi'ect the opening and closing of the valve.

8. A closure comprising a casing having two chambers in one of which is a valve seat, a valve independent of the casing and movable longitudinally therein and having its stem extendin into the other of said chambers, the wal s of said other chamber being flexible and resilient to permit movement thereof and thereby movement of the valve toward and away from its seat upon the application of longitudinal pressure to the casing.

9. A closure comprising a casing having aflexible and resilient section, a valve within but unattached to the casing and movable longitudinally therein, said section adapted to bear upon said valve to hold it in a. given position but permitting it to be moved from said position upon the application of longitudinal pressure to the casing.

In testimony whereof, I have affixed my signature to this specification.

HOWARD H McGEE;

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