US3817302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Can tapper with explosion preventing means
Assignee: Imperial Eastman Corp
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Filing: 1972-05-11
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Granted: 1974-06-18
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Expires: 1992-05-11
Abstract
Abstract An apparatus for transferring pressurized fluid from a first fluid container to a second fluid container with means for preventing explosion of the first container as a result of high pressure therein. The first container illustratively comprises a can of pressurized fluid and the transferring apparatus illustratively comprises a can tapper arranged to pierce a pierceable portion of the can, and having valve means for controlling the flow of the pressurized fluid from the pierced can to the second container. Means are associated with the can tapper for causing a cooling of the can by directing fluid against the can as an incident of the pressure of the fluid in the can rising above a preselected abnormally high level. The can tapper includes means for limiting the fluid pressure in the pierced can to a preselected maximum pressure at all times irrespective of the open or closed condition of the control valve.
Inventors
- 👤 L Kowal
- 👤 R Gibson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:17
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/12; F17C13/123; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0311; F17C2205/032; F17C2205/0323; F17C2205/0329; F17C2205/0332; F17C2205/0335; F17C2205/0338; F17C2205/0382; F17C2205/0385; F17C2205/0388; F17C2205/0394; F17C2221/00; F17C2221/03; F17C2221/038; F17C2260/00; F17C2260/04; F17C2260/042
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
171 words
Apparatus for transferring pressurized fluid from a fluid container to a fluid receiver wherein the fluid pressure is lower than that in said first container, comprising: means defining a flow passage; means for connecting a first portion of the flow passage to said container and a second portion of the flow passage to said fluid receiver for fluid flow therebetween; pressure relief means connecting with said flow passage at a third portion intermediate said first and second portions for limiting the fluid pressure therein to a preselected maximum pressure; means for limiting reverse flow of fluid from said fluid receiver through said flow passage to permit said pressure relief means to the pressure of reverse-flowing fluid in said flow passage to said preselected maximum pressure; and valve means for selectively closing said flow passage between said second and third portions, said third portion being in connection with said first portion at all times for permitting said pressure means to effectively limit the fluid pressure in said container to said preselected maximum.
Claim 2
Dependent Claim
171 words
Apparatus for transferring pressurized fluid from a fluid container to a fluid receiver wherein the fluid pressure is lower than that in said first container, comprising: means defining a flow passage; means for connecting a first portion of the flow passage to said container and a second portion of the flow passage to said fluid receiver for fluid flow therebetween; pressure relief means connecting with said flow passage at a third portion intermediate said first and second portions for limiting the fluid pressure therein to a preselected maximum pressure; means for limiting reverse flow of fluid from said fluid receiver through said flow passage to permit said pressure relief means to the pressure of reverse-flowing fluid in said flow passage to said preselected maximum pressure; and valve means for selectively closing said flow passage between said second and third portions, said third portion being in connection with said first portion at all times for permitting said pressure means to effectively limit the fluid pressure in said container to said preselected maximum.
Claim 3
Dependent Claim
26 words
The fluid transferring apparatus of claim 1 wherein said valve means for selectively closing said flow passage extends through said third portion of said flow passage.
Claim 4
Dependent Claim
16 words
The fluid transferring apparatus of claim 1 wherein said container comprises a can of pressurized fluid.
Claim 5
Dependent Claim
38 words
The fluid transferring apparatus of claim 1 wherein said container comprises a can of pressurized fluid and said means for connecting said first portion of the flow passage thereto comprises means for piercing a portion of said can.
Claim 6
Dependent Claim
35 words
The fluid transferring apparatus of claim 1 wherein said pressure relief valve includes a cover for precluding direct outflow of the high pressure fluid from the pressure relief means, including means for turning the flow.
Claim 7
Dependent Claim
18 words
The fluid transferring apparatus of claim 1 wherein said pressure relief means is carried by said valve means.
Claim 8
Dependent Claim
29 words
The fluid transferring apparatus of claim 1 wherein said pressure relief means is provided with means arranged to direct relieved fluid toward said first container to cool the same.
Claim 9
Dependent Claim
39 words
The fluid transferring apparatus of claim 1 wherein said means for limiting reverse flow comprises a check valve provided in said second portion of the flow passage for substantially preventing flow of fluid under pressure from said fluid receiver.
Claim 10
Dependent Claim
95 words
Apparatus for transferring pressurized fluid from a fluid container, comprising: means defining a flow passage; means for connecting the flow passage to said container for flow of said fluid therefrom; valve means for controlling the flow of said fluid through said passage; and means communicating with said flow passagE for directing fluid from said passage against said container as an incident of the pressure of the fluid in said container rising above a preselected abnormally high level so as to tend to cool the container and thereby cause a lowering of the fluid pressure therein.
Claim 11
Dependent Claim
95 words
Apparatus for transferring pressurized fluid from a fluid container, comprising: means defining a flow passage; means for connecting the flow passage to said container for flow of said fluid therefrom; valve means for controlling the flow of said fluid through said passage; and means communicating with said flow passagE for directing fluid from said passage against said container as an incident of the pressure of the fluid in said container rising above a preselected abnormally high level so as to tend to cool the container and thereby cause a lowering of the fluid pressure therein.
Claim 12
Dependent Claim
36 words
The fluid transferring apparatus of claim 9 wherein said means for directing fluid against said container further defines means for discharging fluid from said container to tend to cause a lowering of the fluid pressure therein.
Claim 13
Dependent Claim
51 words
The fluid transferring apparatus of claim 9 further including means for discharging fluid from said container as an incident of the pressure of the fluid in said container rising above a preselected abnormally high level so as to tend to cool and thereby cause a lowering of the fluid pressure therein.
Claim 14
Dependent Claim
28 words
The fluid transferring apparatus of claim 9 wherein said connecting means includes means for piercing the fluid container to provide the connection between said container and flow passage.
Claim 15
Dependent Claim
38 words
The fluid transferring apparatus of claim 1 wherein said means for limiting reverse flow comprises means resisting reverse flow from the fluid receiver while permitting substantially unimpeded flow to the fluid receiver through said flow passage second portion.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |