USRE20535E

USRE20535E - Valve for aerated liquid vessels

Info

Publication number: USRE20535E
Authority: US
Publication date: 1937-10-19

Description

Oct. 19, 1937. v. J. HILL, JR

' VALVE FOR AERATED LIQUID VESSELS Original Filed July. 5, 1935 FIGURE 2 INVENTOR VALENTINE J HILLJR. BY P ORNEY Rem-ed s. 19, 1931 UNITED. STATES VALVE Foa AERATED noun) VESSELS Valentine J. Hill, Jr., Bloomfield, N. 3., assignor to Walter Kidde Sales Company, Bloomfield; N. 1., a corporation oi Delaware 7 .Original No. 2372316, datedMarch 2, 1931, Serial No.'29,872, July 5, 1935.

Application for reissue May 10, 1937, Serlal No. 141,752

'lClaims.

The present invention relates to valves for vessels for holding an aerated liquid.

It more particularly relates to a valve used with a rechargeable syphon bottle which is used to aerate water with carbon dioxide. The carbon dioxide under high pressure is introduced into the bottle from atsmall capsule which is associatedwith the valve when it is desired to aerate the water. of the gas to the bottle and at the same time it serves to regulate the discharge of the aerated or charged liquid in-the vessel when it is to be used.

Various constructions of valves of this type 3 have been employed in the past but there has always been one great disadvantage attending their use. Whenever they have been used on a syphon bottle there has always been the'danger that the bottle or the valve would burst or explode due to the existence 01' a. high pressure in the vessel.

The danger of the vessel bursting has been present particularly when the vessel has been made of a material which could, not withstand high pressure, as for instance a glass bottle. This danger of excessive pressure may arise from various causes such as an undisclosed defect in the vessel itself, an overcharge of gas in the capsule,

V or the presence of too much liquid in the vessel. Obviously this is a danger which must beavolded in order to make the use of the syphon bottles safefor the ordinary consumer.

Accordingly, it is an object of this invention to prevent any bursting of the vessel.

It is a further object to provide a means in the valve which will burst and relieve the excess 45 .before the vessel can burst, if the pressure in the vessel becomes excessive.

These and other objects will be apparent upon reference to the following specification of which the drawing is a part and in which like numer- 50 als of reference refer to the same parts in each oftheviews;

Figure l is an elevational view of an embodiment of the invention.

Figure 2 is a view in cross section of the valve 56 taken on a plane through the center 01' the valve The valve will control the admission and at right angles to the view shown in Figure 1. With reference to Figure l, the valve l is mounted on the vessel 3 in any appropriate manner. The valve is provided with a spout 5 5 through which the, contents of the bottle are discharged after the liquid has been aerated.

Opposite-to the spout is the connection I to which is attached the holder 9 in which the capsule containing'the fluid under pressure is placed 10 when it is desired to aerate the liquid in the vessel 3.' The details of the capsule holder and gas releasing means are not described since they' ,form no'separable part of the present invention also provided with a chamber I! which is terminated at its upper end by a seat 2| surround- 25 mg a passage 23 leading from the chamber I3.

There is a restricted portion 25 in the passage 23 which serves as a guide for the valve stem 21 which may be longitudinally moved in the pase.

Secured to one end of the stem 21, by the threads 23, is the valve proper 3i which carries a valve facing 33 made of rubber or some other resilient material. By using a material of this nature the contact between the valve proper and the seat is made leakage proof so that none of the excess aerating medium, over that required toaerate the liquid and which is the pressure medium employed to discharge the liquid from the vessel, can escape.

,At-the opposite end of the stem 21 is a push button 33 which is guided by the walls of the chamber 33 in the body Ii. Formed on the wall of the chamber 35 are projections 31 vwhich limit the downward movement ofthe button 33.

A recess 33 is formed in the upper surface of a portion ll 01' the-valve body I l projecting within the chamber 33. A resilient rubber gasket 4i closely encom the valve stem. 21 is received within therecess and serves to make a gas tight joint with the stem. A coiled spring I! bears at one end against the inner surface of thepush button and at the other end on a cupped' washer l3 resting on the gasket ll and encircling the valve stem 21; This spring serves to yield- The path of escape of the liquid is into the chamber I9 and then through the passage 23 to the spout opening 41 and out through the spout 5. In order to prevent the bursting of the vessel upon development of an excess pressure for any reason whatever a safety device is provided comprising a frangible disc 55-and a' sealing gasket 53 secured in position over the outer end of a passage 49 communicating with the chamber IS. The frangible disc may be made of a material such as Bakelite and adapted to burst at a pressure o f approximately 200 lbs. per square inch.- The capped bushing 51 which is secured in the passage 49 by the thread 59 serves to hold the frangible discand'sealing gasket in position. In the cap of the bushing 51 is provideda slot 6|. The slot serves two valuable functions. It serves as a means to remove the bushing when it is desired to replace the frangible disc, by using a screw-driver, coin or other similar object as a tool. It also is the means by which the gas may be relieved into the atmosphere when the frangible disc bursts due to an excessive pressure. P

The frangible disc 55 is made of some material which will rupture at a predetermined pressure. Hence, if the pressure in the bottle should rise to that pressure, the disc will rupture and allow the pressure to fall. It can thus be seen that if the rupturing pressure is carefully chosen the pressure in the bottle can never rise to a point where it would be sufficient to burst the vessel or valve head. Hence all dangersof explosion of any part of the syphon bottle and valve are entirely removed.

With the present construction the disc may be replaced very easily and the vessel may again be used with safety once the dangerous condition has been eliminated.

While the invention has been described with particular reference to its use with vessels for aerating liquids, it will of course be readily under-. stood that the invention is equally applicable to use with vessels intowhich a liquid already aerated is charged, where the same danger of overcharging or of developing an excessive pressure in the vessel is encountered.

From' the .foregoing disclosure it will be apparent that this invention resides in certain principles of construction which may be employed in other physical forms of apparatus without departure therefrom. It is apparent, therefore, that the form of apparatus illustrated in the drawing for the purpose of disclosure has been given solely in an illustrative sense and not in any limiting sense. The scope of this invention is best defined by the appended claims.

I claim: 1

1. A valve adapted for use with a vessel for aerating a liquid comprising a valve body, a chamber in the body, a discharge passage communicating therewith, a spout associated with the passage, a valve proper normally sealing the passage from the chamber, a stem in the passageassociated with .the valve proper, a second chamber in the valve body, a button in the second chamber associated with the stern, a recess in the valve body in the second chamber, a gasket in the recess surrounding the stem, a cupped washer resting. on the gasket, a spring in the second chamber surrounding the stem and bearing on the button and the cupped washer .to thereby maintain the cause passage closed, a reliefv outlet communicatingwith the first chamber, a frangible disc in the relief outlet, a capped bushing in the relief outlet, and a slotted opening in the capped bushing to permit direct communication between the vessel and the atmosphere upon rupture of the frangible disc.

2. A valve adapted for use with a vessel for aerating a liquid comprising a valve body provided with a chamber, a discharge passage communicating therewith, a spout associated with the passage, a valve proper normally closing off the passage from the chamber, a stem in the passage associated with the valve proper, means on the valve stem adapted to be depressed to' open the valve proper, a spring encompassing the stem and bearing von the last named means and the valve body to yieldingly' maintain the valve proper normally closed, a relief outlet in the valve body communicating with the chamber and terminating in a seat,'a sealing gasket and a frangible disc adapted to rest on said seat and overlie said relief outlet, means to secure the sealing gasket and frangible means to permit relief of the pressure in the vessel when it is sufficient to rupture the frangible disc.

3 A valve and charger assembly for use with a vessel for aerating a liquidcomprising a valve body provided with a chamber, a discharge pasdisc on said seat, and a passage in the last named proper normally'closed, a charging passage in the valve body communicating with the chamber, a charging capsule holder adapted to receive va eating with the chamber and terminating in a seat, a sealing gasket and a frangible disc adapted to rest on' said seat and overlie said relief outlet,

means to secure the sealing gasket and frangible charging capsule and to engage the valve body to secure the charging capsule to the charging passage, a relief outlet in the valve body communiaerating a liquid, comprising a valve body, a

chamber in the body, a safety relief outlet in the valve body communicating with the chamber and terminating in a seat, a sealing gasket and a frangible disc adapted to rest on said seat and overlie said relief outlet, a capped threaded bush ing to removably secure the sealing gasket and frangible disc on said seat, and a slot in the bushing to permit relief of pressure when the frangible disc bursts, said slot being adapted to receive a flat object like a coin for enabling thebushing to be moved with respect to the seat.v

5. A valve adapted for use with a vessel for holding an aerated liquid comprising a valve body, a chamber in thebody, a discharge passage com-- niunicating therewith, a spout associated with the passage, a valve proper normally sealing the passage from the chamber, a stem in the passage associated with the valve-proper, asecond chamber in the'valve body, a button in the second chamber associated with the stem, a recess in the valve body in the second chamber, a gasket in resting on the gasket, a spring in the second chamber-surrounding the stem and bearing on the button and the cupped washer to thereby maintain the passage closed, a relief outlet Jcom- 'municating with the first chamber, a frangible disc in there lief outlet, a capped bushing in the relief outlet, and a slotted opening in the capped bushing to permit direct communication between the vessel and the atmosphere upon rupture of the frangible disc.

6. A valve adapted for use with a vessel for I holding an aerated liquid comprising a valve body provided with a chamber, a discharge passage communicating therewith, a spout associated with the passage, a valve proper normally closing off the passage from the chamber, a stem in the passage associated withthe valve proper, means on the valve stem adapted to be depressed to open the valve proper; a spring encompassing the stem and bearing on the last named means and the valve body to yieldingly maintain the valve proper normally closed, a relief outlet in the valve body communicating with the chamber and terminating in a seat, a sealing gasket and a frangible disc adapted to rest on said seat and overlie said relief outlet, means to secure the sealing gasket and frangible disc on said seat, and a passage in the last named means to permit relief of the pressure in the vessel when it is sufficient to rupture the frangible'disc.

7. A valve adapted for use with a vessel for holding an aerated liquid comprising a valve body, a chamber in the body, a safety relief out-, let in the valve body communicating with the chamber and terminating in a seat, a sealing gasket and a frangible disc adapted to rest. on said seat and overlie said relief outlet, a capped threaded bushing to removably secure the sealing gasket and frangible disc on said seat, and a slot in the bushing to permit relief of pressure when the frangible disc bursts, said slot being adapted to receive a flat object like a coin for enabling the bushing to be moved with respect to the seat. VALENTINE .J. HILL, Jn.