US3733009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valves for pressurized recipients
Assignee: Rio Tinto Switzerland AG
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Filing: 1971-03-15
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Granted: 1973-05-15
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Expires: 1991-03-15
Abstract
Abstract A valve for pressurized recipients comprises two separated chambers, in communication with pressurized liquid and pressurized gas respectively. An orifice in a clapper can be moved between the first chamber for distribution of product, the second chamber for purging by the issue of gas, and a closed position. A closure member movably mounted on the clapper can obturate the orifice to prevent purging during opening of the valve, while allowing purging during closing of the valve.
Inventors
- 👤 P Rouzier
- 👤 M Pelissier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:25
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/34; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4273
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
351 words
A valve for use in combination with a container containing pressurized gas and liquid, comprising: a hollow generally cylindrical valve body having open first and second ends; a hollow tubular and movable rod closed at one end and having therein means defining an aperture adjacent its closed end; first and second packing members; means movably mounting said rod coaxially with the valve body with its closed end in the valve body and slidable through first and second packing members; means defining a first chamber within said body defined by the first packing member cooperating with the rod and a part of the valve body adjacent said first end in communication with liquid in a container during use of the valve; a resilient cap cooperating with said second packing member and with the rod to fluid-tightly close the second end of the valve body; means defining a second chamber within said body defined by the second packing member, said rod, first packing member and a part of the valve body adjacent said second end and fluidtightly separated from the first chamber by means of the first packing member; means for communicating the second chamber with gas in a container during use of the valve; a spring in the first chamber for urging the rod successively from a fully depressed position in which said aperture communicates with the first chamber, to an intermediate position in which said aperture communicates with the second chamber, and to a rest position in which said aperture is fluidtightly separated from both first and second chamber; and a closure member fixed on the rod and slidable therealong at a location within said second chamber and having means for closing said aperture when said rod is in the rest position; first sTop means for effecting displacement of the closure member along the rod to free the aperture when the rod is moved from the rest position towards the fully depressed position; and second stop means for effecting displacement of the closure member along the rod to close said aperture when the rod is moved back to the rest position.
Claim 2
Dependent Claim
351 words
A valve for use in combination with a container containing pressurized gas and liquid, comprising: a hollow generally cylindrical valve body having open first and second ends; a hollow tubular and movable rod closed at one end and having therein means defining an aperture adjacent its closed end; first and second packing members; means movably mounting said rod coaxially with the valve body with its closed end in the valve body and slidable through first and second packing members; means defining a first chamber within said body defined by the first packing member cooperating with the rod and a part of the valve body adjacent said first end in communication with liquid in a container during use of the valve; a resilient cap cooperating with said second packing member and with the rod to fluid-tightly close the second end of the valve body; means defining a second chamber within said body defined by the second packing member, said rod, first packing member and a part of the valve body adjacent said second end and fluidtightly separated from the first chamber by means of the first packing member; means for communicating the second chamber with gas in a container during use of the valve; a spring in the first chamber for urging the rod successively from a fully depressed position in which said aperture communicates with the first chamber, to an intermediate position in which said aperture communicates with the second chamber, and to a rest position in which said aperture is fluidtightly separated from both first and second chamber; and a closure member fixed on the rod and slidable therealong at a location within said second chamber and having means for closing said aperture when said rod is in the rest position; first sTop means for effecting displacement of the closure member along the rod to free the aperture when the rod is moved from the rest position towards the fully depressed position; and second stop means for effecting displacement of the closure member along the rod to close said aperture when the rod is moved back to the rest position.
Claim 3
Dependent Claim
27 words
A valve according to claim 1, in which the closure member comprises an annular joint mounted on said rod and movable therealong against a frictional resistance therebetween.
Claim 4
Dependent Claim
68 words
A valve according to claim 2, further including a shoulder in said valve body having mounted thereon the first packing member, a substantially tubular spacing member resiliently mounted in the valve body between the first and second packing members to urge the first packing member against said shoulder, and wherein said means defining said second chamber includes the second packing member, rod, first packing member and spacing member.
Claim 5
Dependent Claim
38 words
A valve according to claim 3, in which said first stop means comprises an inwardly radially directed shoulder on said spacing member adjacent to said first packing member, and said second stop means comprises said second packing member.
Claim 6
Dependent Claim
43 words
A valve according to claim 4, in which the rod comprises a shoulder in said first chamber, cooperative with said first packing member when the rod is to the rest position to stop the rod with said aperture closed by said closure member.
Claim 7
Dependent Claim
30 words
A valve according to claim 3, in which said spacing member and valve body have means therein defining aligned apertures for communicating the second chamber with gas in a container.
Claim 8
Dependent Claim
17 words
A valve as claimed in claim 1 in combination with a container containing pressurized gas and liquid.
Claim 9
Dependent Claim
160 words
A valve for use with a container containing a pressurized fluid and liquid comprising: a valve body having therein means defining first and second spaced-apart chambers, said first chamber communicating during use of the valve with a pressurized liquid and said second chamber communicating during use of the valve with a pressurized fluid; a movable rod having therein means defining a longitudinal bore opening at one end portion of said rod and having therein means defining an aperture at the other end portion of said rod communicating with said longitudinal bore for receiving therethrough the liquid and the fluid depending upon the position of said rod; and permitting both the liquid to escape from said first chamber through said aperture when said rod is in said second position and permitting the fluid to escape from said second chamber through said aperture for a predetermined time during movement of said rod from said second position back to said first rest position.
Claim 10
Dependent Claim
160 words
A valve for use with a container containing a pressurized fluid and liquid comprising: a valve body having therein means defining first and second spaced-apart chambers, said first chamber communicating during use of the valve with a pressurized liquid and said second chamber communicating during use of the valve with a pressurized fluid; a movable rod having therein means defining a longitudinal bore opening at one end portion of said rod and having therein means defining an aperture at the other end portion of said rod communicating with said longitudinal bore for receiving therethrough the liquid and the fluid depending upon the position of said rod; and permitting both the liquid to escape from said first chamber through said aperture when said rod is in said second position and permitting the fluid to escape from said second chamber through said aperture for a predetermined time during movement of said rod from said second position back to said first rest position.
Claim 11
Dependent Claim
30 words
A valve according to claim 8, wherein said last-mentioned means comprises a closure member frictionally mounted on said rod for movement therewith and therealong and located in said second chamber.
Claim 12
Dependent Claim
144 words
A valve according to claim 9, wherein said last-mentioned means further includes; first stop means engageable with said closure member to stop same during movement of said rod from said first rest position to said second position thereby enabling said rod to move relative to said closure member, and second stop means engageable with said closure member to stop same during the movement of said rod from said second position back to said first rest position thereby enabling said rod to move relative to said closure member, whereby said closure member covers said aperture in said first rest position, during the movement of said rod to said second position said closure member is displaced so as to uncover said aperture, and during the movement of said rod back to said first rest position said closure member is displaced so as to cover said aperture.
Claim 13
Dependent Claim
18 words
A valve according to claim 9, wherein said closure member comprises an annular member composed of resilient material.
Claim 14
Dependent Claim
230 words
In combination: a container having means therein defining a valve opening and containing therein pressurized lIquid and fluid; and a valve mounted within said valve opening comprising a valve body having therein means defining a first chamber communicating with the pressurized liquid and a second chamber communicating with the pressurized fluid, a movable rod having therein means defining a longitudinal bore opening at one end portion of said rod and having therein means defining an aperture at the other end portion of said rod communicating with said longitudinal bore for receiving therethrough the liquid and the fluid depending upon the position of said rod, means mounting said rod for sequential movement from a first rest position wherein said aperture is in said second chamber to a second position wherein said aperture is in said first chamber and then back to said first rest position, and means for preventing the fluid from escaping from said second chamber through said aperture when said rod is in said first rest position and during its movement to said second position and permitting both the liquid to escape from said first chamber through said aperture when said rod is in said second position and permitting the fluid to escape from said second chamber through said aperture for a predetermined time during movement of said rod from said second position back to said first rest position.
Claim 15
Dependent Claim
230 words
In combination: a container having means therein defining a valve opening and containing therein pressurized lIquid and fluid; and a valve mounted within said valve opening comprising a valve body having therein means defining a first chamber communicating with the pressurized liquid and a second chamber communicating with the pressurized fluid, a movable rod having therein means defining a longitudinal bore opening at one end portion of said rod and having therein means defining an aperture at the other end portion of said rod communicating with said longitudinal bore for receiving therethrough the liquid and the fluid depending upon the position of said rod, means mounting said rod for sequential movement from a first rest position wherein said aperture is in said second chamber to a second position wherein said aperture is in said first chamber and then back to said first rest position, and means for preventing the fluid from escaping from said second chamber through said aperture when said rod is in said first rest position and during its movement to said second position and permitting both the liquid to escape from said first chamber through said aperture when said rod is in said second position and permitting the fluid to escape from said second chamber through said aperture for a predetermined time during movement of said rod from said second position back to said first rest position.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-14 | 1976-11-13 | 1977-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-14 | 1980-11-13 | 1981-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-14 | 1984-11-13 | 1985-05-15 | $7700.00 | Window Closed / Lapsed |