US2744665A - Pressurized container valve structure - Google Patents

Description

G. E. CARLSON ETAL PRESSURIZED CONTAINER VALVE STRUCTURE 2 Sheets-Sheet FIE'E INVENTOR. leones E. 'ARLsa/v /Ver/MA/ E 011/5 el rroRA/Ey May 8, 1956 Filed June 16, 1951 May 8, 195e G. E. CARLSON ETAL 2,744,665

PRESSURIZED CONTAINER VALVE STRUCTURE 2 Sheets-Shea*L 2 FLZ'E' E' Filed June 16, 1951 FIE' 5' F12-EI 7 8 W l s a W M/ 9 2 0 H //0 l@ Z 7M .uw .f m m a wz 4// s a n? 2 H W 9 N N n Rwmmm muys r NWT M630 A 1ERE EHN.

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wip fiumi@ United4 States Patent O rREssURIzED coNrAlNERvALvE STRUCTURE George E. Carlson, St. Louis Park, and John Parker Bader Aand Nathan B.,0wen, Minneapolis, Minn., assignors to' Viking Valve Company, St. Louis Park, Minn., a corporation of'Minnesota Application June 16, 1951, Serial No.'232,0108

z claims. (Cl. 222-394) now Patent Number 2,686,652, dated August 17, 1954.

In the accompanying drawings formingy a partv of `this specification, Fig. 1 is a vertical central sectional view, partially in elevation and partially broken away, of a valve apparatus madel according to the invention; A Fig. 2 is a fragmentary topplan view of the disclosure of Fig. l; f -v Fig. 3 is a vertical central sectional view, partially in elevation and partially broken away, of a valve apparatus ofmodied construction incorporating features and characteristics of the invention; y A

Fig. 4 is-a view corresponding generally with the di'sclosure of Fig. 3 butshowing parts in different positions; Fig. l5 is a vertical central sectional view, partially in elevation and partially broken away, of a valve apparatus of further modified construction made according to the invention;

Fig. 6V is a view corresponding generally with the disclosure of Fig. 5 but showing parts in different positions;

and v i Fig. 7 is a perspective view of the valve apparatus of Figs.5and6. lq. l With respect to Figs. 1 and 2 of the drawings and the numerals of reference thereon, a can 10 there shown may be of ordinary or preferred construction. As disclosed, said can is constituted as a hollow member boundedat itsV sides by a cylindrical wall 11 which merges atitsfupper endl invan annular wall12-disposed in perpendicular ref lationto-the cylindrical wall 11. The interior margin,- ofthe annular wall 12 is-integral witha circular wall 13 extending downwardly in the can 10ir`1 concentric relation to its cylindrical wall 11. 4A lowerV portion ofsaid ICC spaced, parallel relation to the annular surface 14. The lower end of the cylindrical upper portion 19 merges in an interiorly extending annular shoulder 21 in perpen-V dicularlrelation to said cylindrical upper portion and seatedagainstan annular ange 22 extending inwardly of or from thevlower end of the circular wall 13. In the disclosure as made, the annular ange 22 is provided by crimping the lower end of said circular wall `13 inwardly after the cylindrical upper portion 19 of the shell- 18 has been situated in contiguous relation with the internal cylindrical surface 16.l The annular surface 14 and the annular `shoulder 21 are in parallel relation and in alined relation longitudinally of the can. The interior marginal portion of the annular shoulder 21 integrally supports a cylindrical'lower part 23 of the cup shape member or v shell 18 which is below and concentric with the cylindrical upper portion 19. The lower end of the cylindrical lower part 23 is integral with a base 24 of the cup shape member or shell 18, and a tube 25, for delivering fluid under pressure to a lower portion ofthe interior of said cup shape member or shell, communicates with a lower portion of the interior of the cup shape member or shell by way of an opening 26 through the base 24. More explicitly stated, a pipe flange 27 integral with the base 24 is fitted stem 29 ydisposed in spaced, concentric relation to the circular wall 13 of the can 10. j, A valve-seat-providing and sealing-otf-member of said apparatus is constituted as a hollow body 30 in spaced,`

surrounding relation to the valve stern 29 and an annular diaphragm 31 integral with said hollow body and in surrounding relation to said valve stem.

The hollow body 30 includes an annular ange portion 32 at an upper portion thereof, adjacent the-annular diaphragm 31 and disposed in perpendicular relation to said hollow body, viixedly seated between the annular surface 14 and .the upper end 20 of the shell 18, with the periphery 33 of said annular flange portion engaged against an upper part of the internal cylindrical surface 16.l An external cylindrical surface 34 of the hollow body 30, at the side of the annular ange 32 opposite the annular surface 14, is snugly engaged against the internal surface of the cylinf drical upper portion 19 of the cup-shape member or shell circular wall 13 is cutaway to provide a dc'nwnwardlyA facing.interiorly `disposed,annular surface 14 contiguous, atits'interio'r margin with the lower end of a relatively small internal ycylindrical surface 15 bounding an lupper. portion ,of thecircular wall13 and aty its exteriormargin with the upper end of a comparativelyv large internaly cylindrical surface v16 bounding a lower portion of Asaid circular wall. The annular surface 14 is in perpendicular relation to` the'cylindrical wall 11. VThe lower end of ther yhollow member or can'10 is covered by an upwardly.

bowed closure wall 17 of circular outlinelttedpupon and attached to the lower end of the cylindrical wallnll. g

, Ashell 18.0f the valve apparatus is constituted asa cupV shapey member including a cylindrical A.upper portion 19 having its' external surface engaged against 'the "internal surface 16 of the circular wall v413 and its upper end 20 iny 18,',with a lower, outer circular portion 35 of said hollow body seated against the annular shoulder 21, and an an-v nular passageway 3,6 within the hollow body is contiguous with the stem 29 and the conical valve 28 and the endV of said hollow body adjacent said conical valve, but sealed closed adjacent the end of said hollow body opposite the conical valve by said stem 29 and the annular diaphragm 31. Said annular passageway 36 is bounded at its lower end, or end opposite said annular diaphragm 31, by a downwardly and outwardly extending, inwardly facing, annular valve seat 37 disposed at the inner side `of the conical valve 28, and said conical Valve is in spaced relation to the base 24 of the cup shape member or shell 18. A lateral port 38 in the valve stem 29 above the conical valve 28 is contiguous at its exterior end with the annular passageway 36 and at its interior end with a longitudinal porty 39 in said valve stern, and said longitudinal port is contiguous, at a location above the can, with the interior of an outlet nozzle 40 from said valve stem. As shown, the annular diaphragm 31 includes an upperyportion 41 snugly seated in a downwardly facing annular groove 42 in the valve stem 29 thus to cause thel annular passageway 36 to be closed at its upper end. Said annular diaphragm 31A is constituted as a resilient member Apossessing sutli- 3 cient power normally to retain the conical valve 28 engaged against the annular valve seat 37.

A locking element for retaining the conical valve 28 and the annular valve seat 37 in engaged relation is consti' tuted as a nut 43 having an internal thread 44 engaged with an external thread 45 upon an upper portion of the valve stem 29 above the annular diaphragm 31. The nut 43 will be of size to be readily and easily fitted upon the valve stem 29. The conical valve 28 and the annular valve seat 37 can be retained in engagement by turning the nut 43 down against the annular wall 12 of the can, as it is shown in Fig. l, and the valve stem 29 can be released to be vertically movable in the canby turning said nut to position where in spaced relation to the annular wall 12 of said can.

When it is desired to dispense fluid under pressure from the can, the conical valve 28 will be unseated in response to depression of the valve stem 29against resilient action of the annular diaphragm 31. Upon release of saidvalve stem, said annular diaphragm will immediately react to cause said conical valve to be seated against the annular valve seat. When the conical valve is seated, the exterior end of the lateral port 38 is engaged against and closed by the annular valve seat. When the conical valve 2S and the annular valve seat 37 are in separated relation, flow from the can will be by way of the tube 25, the shell 18, the annular passageway 36 and the ports 38 and 39 to the outlet nozzle 40.

The lower surface of the conical valve 28 fixedly supports a valve element constituted asa body 46 and a guide stem 47 loosely slidable in the opening 26 through' the pipe flange 27 upon the base 24 of the shell 18. The body 46 includes a ilat surface 48 at its lower side, in surrounding relation to the guide stern 47 and parallel relation to said base 24, to be engaged against and removed from an annular valve seat 49 provided by the base 24 in surrounding relation to said opening 26. The construction and arrangement will be such that the flat surface 48 will be removed from the annular valve seat 49, as in Fig. 1 of the drawings, when the conical valve 28 and the annular valve seat 37 are in engagement, and that said at surface 48 can be engaged with said annular valve seat 49 in response to inward or downward manual movement of the valve stem 29, thus to preclude flow of iluid under pressure from the tube 25 into the cup shape member or shell 18. The valve stern 29 can be manually actuated from its position where the conical valve 28 and the annular valve seat 37 are engaged to its position where the at surface 48 and the annular valve seat 49 are engaged in any interval of time which may be predetermined thus to cause tlow of a corresponding amount of lluid under pressure from the hollow member or can 10. Flow will commence with separation of the elements 28, 37 and discontinue with engagement of the elements 48, 49,

and upon release of the valve stem 29, the annular diaphragmy 31 will quickly react, aided by pressure of fluid in the hollow member or can, to return the conical valve 28 to position where engaged against the conical valve seat 37.

The only parts of the valve apparatus with which iluid under pressure being dispensed can come into contact are the tube 25, the shell 18, the body 46 and the guide stem 47 of the valve element, the hollow body 30 and the annular diaphragm 31 of the valve-seat-providing and sealing-oll member, and the valve member constituted as the conical valve 28 and the elongated valve stem 29. As shown, all of the parts of the apparatus to be contacted by fluid under pressure are of non-metallic material, thus to insure that there will be no occurrence of electrolytic action. The hollow body 3), the annular diaphragm 31, the valve body 46 and the guide stem 47 are of molded rubber, and the tube 25, the shell 18 and the member comprising the conical valve 28 and the elongated valve stem 29 are of plastic material.

Referring to Figs. 3 and 4, numeral 52 represents a hollow member or can bounded at its sides by a cylindrical wall 53 which merges at its upper end in an annular wall 54 disposed in perpendicular relation to the cylindrical wall 53. The interior margin of the annular wall 54 is integral with a circular wall 55 extending upwardly in concentric relation to said cylindrical wall 53. A lower portion of said circular wall 55 is shaped to provide a downwardly facing, interiorly disposed, annular surface 56 contiguous at its interior margin with the lower end of a relatively small internal cylindrical surface 57 bounding an upper portion of the circular wall 55 and at its exterior margin with the upper end of a comparatively large internal cylindrical surface 58 bounding a lower portion of said circular wall 55. The annular surface 56 is in perpendicular relation to the cylindrical wall 53. The lower end of the hollow member or can 52 may be covered in the same manner as is the lower end of the hollow member or can 10, or in any other ordinary or preferred manner.

A shell 59 of the valve apparatus of Figs. 3 and 4 is constituted as a cup shape member including a cylindrical upper portion 60 having its external surface engaged against the internal surface 58 of the circular wall 55 and its upper end 61 in spaced, parallel relation to the annular surface 56. The lower end of the cylindrical upper portion 60 merges in an interiorly extending annular shoulder 62 in perpendicular relation to said cylindrical upper portion 60 and seated against an annular ilange 63, equivalent to the annular ilange 22, extending inwardly from the lower end of the circular wall 55. As shown, the annular flange 63 is provided by crimping metal of the can at the inner margin of the annular wall 54 and at the lower end of the circular wall 55 inwardly while the cylindrical upper portion 60 of the shell 59 is in contiguous relation with the internal cylindrical surface 58. The annular surface 56 and the annular shoulder 62 are in parallel relation and in alined relation longitudinally of the hollow member or can 52. The interior marginal portion of the annular shoulder 62 integrally supports a cylindrical lower part 64 of the cup shape member or shell 59 which is below and concentric with the cylindrical upper portion 60. The lower end of the cylindrical part 64 is integral with a base 65 of the cup shape member or shell 59, and a tube 66 connects a lower portion of the hollow member or can 52 with a lower portion of the cup shape member or shell 59 by way of an opening through a pipe flange 67 upon the base 65 and fitted into the tube 66.

A valve member, equivalent to the valve member of Fig. 1, is constituted as a conical valve 68 and an elongated cylindrical stem 69.

A valve-seat-providing and sealing-off member, equivalent to the valve-seat-providing and sealing-off member of Fig. l, is constituted as a hollow body 70 and an annular diaphragm 71.

An annular flange portion 72 upon an upper portion of the hollow body 70 is tixedly seated between the annular surface 56 and the upper end 61 of the shell 59, with the periphery of said annular flange portion 72 engaged against an upper part of the internal cylindrical surface 58. An external cylindrical surface of the hollow body 70 is snugly engaged against the internal surface of the cylindrical upper portion 60 of the cup shape member or shell 59, and a lower, outer circular portion 73 of said hollow body 70 is seated against the annular shoulder 62. An annular passageway 74 within the hollow body 70 is contiguous with the elongated cylindrical stem 69, the conical valve 68 and the end of said hollow body 70 adjacent said conical valve 68, but sealed closed at its opposite end by said stem 69 and the annular diaphragm 71. The end of the annular passageway 74 opposite said annular diaphragm 71 is bounded by an inwardly facing annular valve seat 75, equivalent to the annular valve seat 37, disposed at the inner side of the conical valve 68. Ports 76 and 77 in the valve stem 69, equivalent to the ports 38 and 39, lead from the annular passageway 74 to an outlet nozzle 78, equivalent to the outlet nozzle 140.r

stem 69. Like the annular diaphragm 31, said annular diaphragm'71 also is constituted as a resilient member capable of normally retaining the conical valve 68 and thev annular valve seat 75 in engagement.

A nut 80, upon an external thread 81 of the elongated cylindrical valve stem 69 and adapted to be engaged against the upper end of the circular wall 55, constitutes a locking element for retaining the conical valve 68 engaged against the annular valve seat 75. When said nut 80 and upper end'of circular wall 55 are interengaged, as in Fig. 3 of the drawings, said conical valve 68-and annular valve seat 75 also will be in engagement. When the conical valve is seated, the exterior end of the port 76 is engaged against and closed by the annular valve seat 75.

The elongated valve stem 69'can be released to be ver-v tically movable in the can by turning the nut 80 to position wherein spaced relation to the upper end ofV said circular wall 55, as in Fig. 4. v

TheV lower surface -of the conical valve 68 fxedly supports a valve element, equivalent to the valve element of Fig. l, constituted as a body 82 and a guide stem' 83 loosely slidable in the pipe flange 67. The body 82 includes a flat surface 84 at its lower side, surrounding the guide stem 83, to be engaged against and removed from an annular valve seat 85 upon the base 65 of the shell 59 in surrounding relation to the pipe flange 67.

The valve apparatus of Figs. 3 and 4 is operative, or functions, in the same manner as does the valve apparatus of Figs. l and 2.

In Figs. to 7, a can 88 is constituted as a'hollow member bounded at its sides by a cylindrical wall 894 which merges at its upper end in an annular wall '90 extending upwardly and inwardly. The upper end of the annular vwall 90 is integral with a vertical circular wall 91, extending upwardly from said annular wall 90, and a ring member 92 integral with the upper end of the vertical ,circulai Wall 91 is circular in cross-section. The lower end of the hollow member or can 88 is'covered by a closure wall 93.

An outer, lower shell 94 of the valve apparatus of Figs. 5 to Tis-constituted as a cup shape member having an upper end circular portion 95 which opens downwardly, as at 96, to be seated upon the ring member 92. As will be clear from Fig. 5, the upper end circular portion 95. is secured upon said ring member 92 to .cause the outer, lower shell 94 to be fxedly supported within the can. Said upper end circular portion 95 supports a horizontal annular portion 97 which in turn supports a vertical cylindrical intermediate portion 98 of thefcup shape member or outer, lower shell 94, below and concentric with the upper end circular portion 95, and said vertical cylindrical intermediate portion merges integrally at its lower end in an interiorly extending annular shoulder 99 in perpendicular relation to the cylindrical wall 89. The interior marginal portion of the annular shoulder 99 integrally supports a cylindrical portion 100 of said cup shape member or outer, lower shell 94 which is below and concentric with the cylindrical intermediate portion 98. In turn, the lower end of said cylindrical lower portion 100 is integral with a base 101 of the cup shape member or outer, lower shell 94, and a tube 102 communicates with a lower portion of said cup shape member or outer, lowershell by way of an opening 103 through the base 101 and a pipe flange 104 upon said base and in the adjacent end portion of the tube 102.

An inner, upper shell 105 is shaped to provide a downwardly facing, interiorly disposed, annular surface 106 contiguous at its interior margin with the lower end of a relatively small internal cylindrical surface 107 bounding an upper portion of the inner, upper shell 105 and at its exterior margin with the upper end of a comparatively large intemal cylindrical surface 108 bounding a lower portion of said inner upper shell 105. The annuf lar? surface 106 is in perpendicular relation to the cylindrical wall 89. An annular flange portion 109, upon and extending upwardly from the lower end of the inner, upper shell in perpendicular relation thereto, has its external surface engaged against the internal surface of the vertical cylindrical intermediate wall 98 and its surface 110 situated in spaced, parallel relation to the upper, inner surface 111 of the annular shoulder 99. The upper end of the vertical cylindrical intermediate portion 98 is crimped inwardly to provide an annular shoulder 112 seated against a marginal circular portion of the upper surface of the annular ange portion 109. The annular surface 110 and the upper, inner surface 111 are in parallel relation and in alined relation longitudinally of the hollow member or can 88.

A valve member, equivalent to the valve members of Figs. l, 3 and 4, is constituted as a conical valve 113 and an elongated cylindrical stem 114.

A valve-seat-providing and sealing-olf member, equivalent to the valve-seat-providing and sealing-olf members of Figs. 1, 3 and 4, is constituted as a hollow body 115 and an annular diaphragm 116.

An annular flange portion 117 upon a lower portion of the hollow body 115' is fxedly seated between the annular surfaces 110 and 111, with the periphery of said annular flange portion 117 engaged against a lower part of the internal surface of the vertical cylindrical intermediate wall 98. An external cylindrical surface of the hollow body 115 is snugly engaged against the internal surface 108 of the inner, upper shell 105, and an upper, outer circular portion 118 of said hollow body 115 is seated against the annular surface 106. An annular passageway 119 within the hollow body 115 is contiguous` with the elongated cylindrical stem 114, the conical valve 113 and the end of thefhollow body 115 adjacent said conical'valve 113, but sealed closed at its opposite end by said stem 114 and the annular diaphragm 116. The end of the annular passageway 119 opposite said annular diaphragm 116 is bounded by an inwardly facing annular valve seat 120, equivalent to the annular valve seats 37 and 75, disposed at the inner side of the conical valve 113. Ports121 and 122 in the valve stern 114 lead from the annular passageway 119 to an outlet nozzle 123 above the hollow member or can 88. An upper portion 124 of the annular diaphragm 116 is snugly seated in a downwardly facing annular groove in the valve stem-114. vAs set forth in connection with the annular diaphragms 31 and 71, the annular diaphragm 116 also is constituted as a resilient member -capable of normally retaining the conical valve 113 in engaged relation with the annular valve seat 120.

A shroud for the valveapparatus of Figs. 5y to 7 is denoted 125. Said shroud is supported, as at 126, upon the annular wall 90 of the can 88 and the upper end circular portion 95 of the outer, lower shell 94 of the valve apparatus.

The conical valve 113 includes a flat surface 127 at its lower side to be engaged against and removed from an annular valve seat 128 upon the base 101 of the outer, llower shell 94 in surrounding relation to the pipe ilange The valve apparatus of Figs. 5 to 7 is operative, or functions, in the general manner as hereinbefore set forth in connection with the disclosure of Fig. l. The elongated cylindrical valve stem 114 will be depressed when fluid under pressure is to be dispensed from the can 88, thus to cause the conical valve 113 to be removed from the annular valve seat against resilient action of the annular diaphragm 116. Said annular diaphragm 116 will immediately react to reseat said conical valve upon release of said valve stem 114. When the conical valve 113 is seated, the exterior end of the port 121 is engaged against and closed by said conical valve. Flow from the can 88 will be by way of the tube 102, the outer,

lower shell 94, the annular passageway 119 and the ports 121' and 122 to the outlet nozzle 123 when the conical valve 113 is removed from the annular valve` seat 120. The at surface 127 will be removed from the annular valve seat 128 when the conical valve 113 and the annular valve seat 120 are in engagement. In response to inward or downward manual movement of the valve stem 114, said ilat surface 127 can be made to engage said Aannular valve seat 128, thus to shut oil? tlow of lluid under pressure from the tube 102 into the outer, lower shell 94. The valve stem 1t14 can be manually actuated in any interval of time which may be predetermined from its position where the conical valve 113 is against the annular valve seat 120 to its position where the ilat surface 127 is engaged against the annular valve seat 128, thus to cause flow of a corresponding amount of lluid under pressure from the can 88. The annular diaphragm 116 will act, aided by pressure of fluid in the can, to return the conical valve 113 to seated position against the annular valve seat 120 upon release of said valve stem 114.

The only parts of the valve apparatus of Figs. 5 to 7 with which fluid under pressure being dispensed can come into contact are the tube 102, the outer, lower shell 94, the hollow body 115 and the annular diaphragm 116 of the valve-seat-providing and sealing-oil member, and the valve member including the conical valve 113 and the elongated valve stem 114. The hollow body 115 and the annular diaphragm 116 are of molded rubber, and the tube 102, the outer, lower shell 94 and the member providing the conical valve 113 and theelongated valve stem 114 are of plastic material.

What is claimed is:

l. A valve apparatus for controlling low of lluid from a container, comprising a body having a passageway therethrough and providing a valve seat surrounding an inlet side of said passageway to which the interior of said container is open, means supporting said body in said container and precluding llow of lluid past the body save by way of said valve seat constituted as a member providing an annularsurface rigid with the container, an internal cylindrical surface contiguous with an exterior margin of said annular surface and a shell including a cylindrical portion engaged against said internal cylindrical surface and an annular shoulder extending interiorly of said cylindrical portion of said shell, said body being secured between said annular surfacek and annular shoulder, an external surface of said body being engaged against an internal surface of said cylindrical portion and an annular flange upon said body being secured between said annular surface and an end of said cylindrical portion of said shell and engaged with said internal cylindrical surface, a valve member including a valve disposed interiorly of and adjacent said valve seat and a valve stem rigid with said valve` extending through said passageway,.and a diaphragmhaving an outer portion thereof surrounding:a part of said valve stem spaced from said valve, said diaphragm and valve stem' sealing closed aside of said body opposite the valve seat and contiguous with the passageway, said diaphragm being resiliently urged to actuate said valve to cause it normally to be engaged against said valve seat, and there being an outlet through the valve stem past the diaphragm leading from said passageway to a location exterior of said apparatus and said continer.

2. A valve apparatus for controlling flow of fluid from a container, comprising a body having a passageway therethrough and providing a valve seat surrounding an inlet side of said passageway to which 'the interior of said container is open, means supporting said body in said container and precluding flow of fluid past the body save by way of said valve seat constituted as a member providing an annular surface rigid with the container, an internal cylindrical surface contiguous with an exterior margin of said annular surface and a shell including a cylindrical portion engaged against a surface of said member and an annular shoulder extending interiorly of said cylindrical portion of said shell, said body being secured between said annular surface and annular shoulder, an external surface of said body being engaged against said internal cylindrical surface and an annular ilange upon said body being secured between said annular shoulder and an end of said member and engaged with said cylindrical portion of said shell, a valve member including a valve disposed interiorly of said valve seat and a valve stem rigid with said valve extending through said passageway, and a diaphragm having an outer portion thereof surrounding a part of said valve stem spaced from said valve, said diaphragm and valve stem sealing closed a side of said body opposite the valve seat and contiguous with the passageway, said diaphragm being resiliently urged to actuate said valve to cause it normally to be engaged against said valve seat, and there being an outlct through the valve stem past the diaphragm leading from said passageway to a location exterior of said apparatus and said container.

References Cited in the file of this patent UNITED STATES PATENTS 116,433- Glover June 27, 1871 2,506,449 Greenwood May 2, 1950 2,543,850 Henricson Mar. 6, 1951 2,565,954 Dey Aug. 28, 1951 2,582,262 Loven et al. Jan. 15, 1952 2,612,293 Michel Sept. 30, 1952 2,621,973 Lodes Dec. 16, 1952

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