US3584769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure container assembly
Assignee: HD Hudson Manufacturing Co
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Filing: 1969-02-12
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Granted: 1971-06-15
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Expires: 1989-02-12
Abstract
Abstract A pressure container is described which features a new closure assembly having a pressure release valve which opens to release the tank pressure before the tank cover can be removed. The container is also provided with a seal which increases in effectiveness as the pressure in the tank is increased. This pressure container can be economically manufactured and combines depressurization safety features with increased sealing effectiveness.
Inventors
- 👤 August H Pinke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:53
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/06; B; B65; B65D; B65D51/00; B65D51/16; B65D51/1672; B65D51/1683; F16; F16J; F16J13/00; F16J13/24; F16L; F16L17/00; F16L17/02; F16L17/03; F16L17/032; F17C13/12; F17C13/123; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0119; F17C2201/03; F17C2201/032; F17C2205/00; F17C2205/01; F17C2205/0153; F17C2205/0157; F17C2205/0165; F17C2205/03; F17C2205/0302; F17C2205/0311; F17C2205/0323; F17C2205/0329; F17C2205/0332; F17C2205/0388; F17C2205/0394; F17C2209/00; F17C2209/23; F17C2209/234; F17C2221/00; F17C2221/03; F17C2221/031; F17C2223/00; F17C2223/01; F17C2223/0107; F17C2223/0123; F17C2227/00; F17C2227/01; F17C2227/0128; F17C2227/0135; F17C2227/0142; F17C2227/0171; F17C2227/0178; F17C2250/00; F17C2250/06; F17C2250/0605; F17C2250/0626
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
301 words
A container assembly for storing fluid under pressure which comprises: a tank for storing the fluid which is provided with a mouth through which fluid can be added to the tank; a removable cover extending across the mouth of the tank; means for removably securing the cover to the tank including means for rotating the cover to couple or uncouple the cover and tank; means at the mouth of the tank and mounted thereon for sealing the cover to the tank to render the container assembly pressuretight including a flexible gaSket circumferentially positioned about the tank mouth in contact with the tank and cover and provided with a bevelled lower section, said gasket being in an initial sealing relationship with the tank and being elastically deformed under the fluid pressure of the tank to enhance the sealing engagement with the tank and cover to render the container assembly pressuretight; means for removing the fluid contents of the tank while under pressure including a piston-type pump mounted by said cover and a connecting line communicating with and extending from the interior of the tank to the outside; a pressure release valve carried by the cover and communicating with the interior of the tank; means for opening the release valve as the cover is uncoupled from the tank and while the container assembly is pressuretight causing the pressure in the tank to be released before the cover is completely uncoupled from the tank and the seal therebetween is broken, the means for opening the release valve cooperate with the cover so that as the cover is rotated to uncouple the cover and tank, and while the container assembly is pressuretight, the valve will be opened causing the pressure in the tank to be released before the cover breaks sealing engagement with the gasket.
Claim 2
Dependent Claim
301 words
A container assembly for storing fluid under pressure which comprises: a tank for storing the fluid which is provided with a mouth through which fluid can be added to the tank; a removable cover extending across the mouth of the tank; means for removably securing the cover to the tank including means for rotating the cover to couple or uncouple the cover and tank; means at the mouth of the tank and mounted thereon for sealing the cover to the tank to render the container assembly pressuretight including a flexible gaSket circumferentially positioned about the tank mouth in contact with the tank and cover and provided with a bevelled lower section, said gasket being in an initial sealing relationship with the tank and being elastically deformed under the fluid pressure of the tank to enhance the sealing engagement with the tank and cover to render the container assembly pressuretight; means for removing the fluid contents of the tank while under pressure including a piston-type pump mounted by said cover and a connecting line communicating with and extending from the interior of the tank to the outside; a pressure release valve carried by the cover and communicating with the interior of the tank; means for opening the release valve as the cover is uncoupled from the tank and while the container assembly is pressuretight causing the pressure in the tank to be released before the cover is completely uncoupled from the tank and the seal therebetween is broken, the means for opening the release valve cooperate with the cover so that as the cover is rotated to uncouple the cover and tank, and while the container assembly is pressuretight, the valve will be opened causing the pressure in the tank to be released before the cover breaks sealing engagement with the gasket.
Claim 3
Dependent Claim
21 words
A container assembly in accordance with claim 1 wherein the tank is provided with a helical neck surrounding the tank mouth.
Claim 4
Dependent Claim
58 words
A container assembly in accordance with claim 2 wherein the removable cover is provided with a mating helical flange so that when the cover is positioned over the tank mouth and then rotated, the helical flange of the cover and the helix of the tank neck are brought into mating engagement to secure the cover on the tank.
Claim 5
Dependent Claim
273 words
A container assembly for storing fluid under pressure which comprises: a tank for storing the fluid which is provided with a mouth through which the fluid can be added to the tank; a helical neck surrounding the tank mouth; a removable cover having a mating helical flange so that when the cover is positioned over the tank mouth and then rotated, the helical flange of the cover and the helix of the tank neck are brought into mating engagement to secure the cover on the tank; a flexible gasket circumferentially positioned on the tank and about the tank mouth in contact with the tank and cover and provided with a bevelled lower section, said gasket being in an initial sealing relationship with the tank and being elastically deformed under the fluid pressure of the tank to enhance the sealing engagement with the tank and cover to render the container assembly pressuretight; means for removing the fluid contents of the tank while under pressure including a piston-type pump mounted by said cover and a connecting line communicating with and extending from the interior of the tank to the outside; a pressure release valve carried by the cover and communicating with the interior of the tank; means for rotating the cover to couple or uncouple the cover and tank; and means cooperating with the cover coupling means for opening the release valve so that as the cover is rotated to uncouple the cover and tank, and while the container assembly is pressuretight, the valve will be opened causing the pressure in the tank to be released before the cover breaks sealing engagement with the gasket.
Claim 6
Dependent Claim
273 words
A container assembly for storing fluid under pressure which comprises: a tank for storing the fluid which is provided with a mouth through which the fluid can be added to the tank; a helical neck surrounding the tank mouth; a removable cover having a mating helical flange so that when the cover is positioned over the tank mouth and then rotated, the helical flange of the cover and the helix of the tank neck are brought into mating engagement to secure the cover on the tank; a flexible gasket circumferentially positioned on the tank and about the tank mouth in contact with the tank and cover and provided with a bevelled lower section, said gasket being in an initial sealing relationship with the tank and being elastically deformed under the fluid pressure of the tank to enhance the sealing engagement with the tank and cover to render the container assembly pressuretight; means for removing the fluid contents of the tank while under pressure including a piston-type pump mounted by said cover and a connecting line communicating with and extending from the interior of the tank to the outside; a pressure release valve carried by the cover and communicating with the interior of the tank; means for rotating the cover to couple or uncouple the cover and tank; and means cooperating with the cover coupling means for opening the release valve so that as the cover is rotated to uncouple the cover and tank, and while the container assembly is pressuretight, the valve will be opened causing the pressure in the tank to be released before the cover breaks sealing engagement with the gasket.
Claim 7
Dependent Claim
45 words
A container assembly in accordance with claim 4 wherein the means for actuating the release valve comprises: a plate rotatably mounted on the cover, and means carried by the plate for engaging the release valve when the plate is rotated with respect to the cover.
Claim 8
Dependent Claim
29 words
A container assembly in accordance with claim 5 wherein the pressure release valve is provided with an upwardly extending valve pin which can be depressed to open the valve.
Claim 9
Dependent Claim
57 words
A container assembly in accordance with claim 6 wherein the means for opening the release valve includes a lip protruding upwardly from the plate so that when the lip of the Plate engages the valve pin, the pin will be moved into a depressed position to open the valve and release the internal pressure of the tank.
Claim 10
Dependent Claim
132 words
A container assembly in accordance with claim 7 wherein the plate is provided with at least one slot of predetermined size and the cover is provided with at least one member protruding through the slot and so positioned on the cover so that when the plate is rotated in one direction through a predetermined angle corresponding to the slot size, the valve pin will be depressed by the lip to open the valve and the protruding member will engage an end edge of the slot; and when the cover is rotated in the opposite direction, the valve pin will be disengaged by the lip to allow the valve pin to move upward into a raised position to close the valve while the protruding member engages the opposite end edge of the slot.
Claim 11
Dependent Claim
35 words
A container assembly in accordance with claim 8 wherein the plate is provided with a pair of oppositely disposed slots and the cover is provided with a pair of members each protruding through a slot.
Claim 12
Dependent Claim
25 words
A container assembly in accordance with claim 9 wherein the lip protruding upwardly from the plate makes an angle less than 90* with the plate.
Claim 13
Dependent Claim
38 words
A container assembly in accordance with claim 10 wherein the cover is provided with a pair of helical flanges and the neck is provided with a pair of mating helices for engaging the helical flanges of the cover.
Claim 14
Dependent Claim
30 words
A container assembly in accordance with claim 11 wherein the means for rotating the cover comprise a handle provided with a pair of downwardly extending legs for engaging the cover.
Claim 15
Dependent Claim
49 words
A container assembly in accordance with claim 12 wherein the cover is provided with a pair of spaced openings for receiving the legs of the handle so that when the handle is rotated the legs are urged against the edges of the openings to cause the cover to rotate.
Claim 16
Dependent Claim
19 words
A container assembly in accordance with claim 13 wherein the lower bevelled section of the gasket is about 20*.
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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |