US1630040A - Valve - Google Patents

Description

May 24, 1927.

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F. A. VOGT ET AL VALVE Filed Jan. 22, 1926 Patented May 24, 1927.`

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FRANK A. VOGT, ELMER FLEISCH, AND HUGO GOLDSMITH, OF CINGIlNl'N'A'JI, OHIO, AS"v SIGNOBS T THE IP. GOLDSMITH SONS COMPANY, 0F CINCINNATI, OHIO, A COBf Pom'rIoN or omo.

`.Aplgnlcation led January 22, 1926. Serial No. 82,888'.

' It is our object to provide an inexpensive valve preferably made' entirely of resilient materialsuch as rubber which will be easy to inflate, which will \be very resistant against leakage and which will beexceed- -ingly simple to deflate.

It is s ecically our object to provide a valve of tubular shape having a neck or stem of resilient material and in which a passage extends from the exterior partially through the stem lon itudinally. In combination with such a tu ular member7 it is our object to provide a slit extending laterally through the walls with a resilient member enclosing at least the slitted part of the tube, which resilient member will expand with inllation from position closing the lateral slit and which will thereafter seal the slit when inflation hasceased. It is further our object to provide the tubular member with a Sealed innerend which will form a seat for a valve defiating tool so that the stem of the valve may be stretched andthe slit be thereby moved to unsealed position with relation to the resilient member enclosing it. The delation ofthe valve may be accomplished by the insertion of any narrow implement 'through the air passage which is of s uiiicient length to more than reach to the sealed end.

Referring to the drawings illustrating several modiica-tions of valves embodying our invention Figure 1 is a sectional view of a valve in which an outer resilient sealing member is formed from a bent over end of the valve stem with the bent over portion held against the slit in the tube by the natural stiffness of the valve stem and the body of material in the bent over portion being of sulicient bulk to sta-y normally in sealing position.`

Figure 2 is `a sectional view of another type of valve in which a bent over sealed end i is held in position by a tying member.

Figure 3 is a sectional view of a slightly l different type of valve having a resilient band surrounding the tube with the upper part of the band held in position by vul-- canizing to the valve stern.V

Figures 4, 5 and 6 are sectional views of a valve of the same type as that illustrated in Figure 3 with the resilient band held in `place at its upper end by interlocking grooves and beading in the walls -of the stemand band.

We have illustrated inthe several embodiments of our invention the valve stem l, which must have an inner end of stretchable nature such as rubber. an iniating passage 2 of desired shape extending longitudinally rom an open end at The valve stem hasl the outside vpart-Way through the tube,fand

l`the walls of the stem have a slit 3 close tothe inner sealed end of the tube, which ex-y tends laterally through the walls. The inner end of the tube may be sealed either by bend ing over the end of the stem and vulcanizing or cementing the end of the tube as indivcated.at 4in 'Figures k1 and 2j,..or by.. only extending the longitudinal passage partway through the tube leaving the inner end sealed "as indicated at 4 in Figures 3 to 6. i All the embodiments, have a resilientl member 5 which lies over the tube in the position perforated by the slit 3. The resilient member 5 in each case is adapted during inflation to expand suiiciently to allow air to enter through the slit. The members 5 are also adapted, due to their resilience and the in ward pressure from the inflatable body of the ball, to seal the slit normally against leakage back through the air passage `in the stem. In the Figures 1 and 2 the member 5 is formed from an integral piece of the" stem which is bent over and either held in position by having suiiicient body to stay in position as indicated in F igpre l or by a tying member 6 aslindicated in Figure 2. Figure 3 shows the resilient member 5 l formed as a band extending about the stem rooves 8 and beads 9 retain the upper which is usually termed the bladder the ianges 10 which may be vulcanized or 'cemented to a bladder l0@l either on the outer or inner side in the obvious manner. The' modifications illustrated in Figures 1, 3 and 6 have outer flanges 11, which may be suitably secured to a cover-flap 11*3L on the outer side of the bladder.

In inflatingl a ball provided Wit-h a valve made in accordance With our invention, an inflating nozzle is inserted into the outer mouth of the passage 2, and the air passes down through the passage and out through the slit 3 into the inflatable member in which the valve is secured. The pressure Within the bladder in combination With the resilience of the member 5 effectively seals the slit against leakage back through the air passage in the stem.

In delating` the bladder an elongated tool such as a piece of square Wire is insertedl in the air passage from the open end and pressed against the sealed end ofthe stem which stretches the stem so that the slit is moved to an unsealed position with reference to resilient member 5. In the modifications shown in Figures 1 and 2, as the resilient members 5 are carried by the end of the stem, the resilient members themselves are moved to unsealing position, with the stretching of the stem. In the modifications shownin Figures 3 to 6, the stem is stretched so that the slitted portion is carried below the resilient band.` It is preferable in the modifications on the stem so that it will not move down with the stretching of the stem so aS to continue to block the slitted vportion of the stem. A

Modifications of structure which provide valves which have a stretchable stem with a longitudinal passage closed at the inner end and with a lateral slit which is adapted to be sealed against back leakage by a resilient member disposed exteriorly of the stem, We consider Within the range of mechanical equivalency.

Having thus described our invention, What We claim as new and desire to secure by Letters Patent, is:-

A valve for inflatable articles comprising a stem portion having an open ended air passage extending longitudinally thereinto, said stem having a closed inner end, Walls of said stem having a slit extending laterally therethrough adjacent said closed end, and a resilient member supported by said stem enclosing the outer walls of said stern in the slitted portion, said stem being stretchable whereby pressure applied with an inserted piece within said air passage bearing against said closed end Will stretch said Stem and unseal said slit with relation to said enclosing member.

FRANK A. VOGT. ELMER F LEISCH. HUGO GOLDSMITH.

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