Patent US3741250A successfully refreshed from Google Patents.
US3741250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure vessel
Assignee: EXOL Inc A CORP OF DE
•
Filing: 1971-10-05
•
Granted: 1973-06-26
•
Expires: 1991-10-05
Abstract
Abstract This invention relates to a pressure vessel comprising a rigid container having two ports, a flexible separator in the form of a bladder being disposed in the interior of said container and dividing it into two fluid chambers which are respectively in communication with said ports, and a guide or flow member in the general shape of a hollow column is fixed at one of its ends to the container at one of the ports thereof and extends axially inward into the container, the flow member being adapted to permit an appropriate flow of fluid in two directions and having a perforated tubular central member and an encompassing permeable sleeve formed from a stack of juxtaposed grooved washers which at least partially enclose the tubular member and which is retained between two terminal abutments.
Inventors
- 👤 J Mercier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:18
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; F16L55/052; F15; F15B; F15B3/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
159 words
A pressure vessel comprising a rigid container having a deformable partition therein defining two chambers for fluid, said container having two ports leading respectively into said chambers, a central flow member in one of said chambers, said central flow member having one end secured to the container and having a central bore in communication with the port associated with said chamber, said flow member comprising a rigid tube extending axially in said container, said rigid tube having a plurality of perforations therein and a sleeve of impermeable material comprising a stack of juxtaposed washers, each washer being conformed so that when the washers are juxtaposed to form a stack, narrow passageways wIll be provided between adjacent washers from the interior to the exterior of the stack, said sleeve encompassing at least a portion of said rigid tube permitting flow of fluid therethrough from the bore of said rigid tube into the chamber in which the flow member is positioned.
Claim 2
Dependent Claim
159 words
A pressure vessel comprising a rigid container having a deformable partition therein defining two chambers for fluid, said container having two ports leading respectively into said chambers, a central flow member in one of said chambers, said central flow member having one end secured to the container and having a central bore in communication with the port associated with said chamber, said flow member comprising a rigid tube extending axially in said container, said rigid tube having a plurality of perforations therein and a sleeve of impermeable material comprising a stack of juxtaposed washers, each washer being conformed so that when the washers are juxtaposed to form a stack, narrow passageways wIll be provided between adjacent washers from the interior to the exterior of the stack, said sleeve encompassing at least a portion of said rigid tube permitting flow of fluid therethrough from the bore of said rigid tube into the chamber in which the flow member is positioned.
Claim 3
Dependent Claim
38 words
The combination set forth in claim 1 in which said washers are undulated, whereby when the washers are juxtaposed to form a stack, passageways will be defined between adjacent pairs of washers from the interior to the exterior.
Claim 4
Dependent Claim
36 words
The combination set forth in claim 1 in which a pair of longitudinally spaced rigid abutments are associated with said rigid tube and said stack of washers is retained in clamped relationship between said rigid abutments.
Claim 5
Dependent Claim
153 words
A pressure vessel comprising a rigid container having a deformable partition therein defining two chambers for fluid, said container having two ports leading respectively into said chambers, a central flow member in one of said chambers, said central flow member having one end secured to the container and having a central bore in communication with the port associated with said chamber, said flow member comprising a rigid tube extending axially in said container, said rigid tube having a plurality of perforations therethrough and a permeable sleeve comprising a stack of juxtaposed washers each having grooves in at least one surface thereof, the grooves in said washers when the latter are juxtaposed, providing narrow passageways from the interior to the exterior, said sleeve encompassing at least a portion of said rigid tube permitting flow of fluid therethrough from the bore of said rigid tube into the chamber in which said flow member is positioned.
Claim 6
Dependent Claim
153 words
A pressure vessel comprising a rigid container having a deformable partition therein defining two chambers for fluid, said container having two ports leading respectively into said chambers, a central flow member in one of said chambers, said central flow member having one end secured to the container and having a central bore in communication with the port associated with said chamber, said flow member comprising a rigid tube extending axially in said container, said rigid tube having a plurality of perforations therethrough and a permeable sleeve comprising a stack of juxtaposed washers each having grooves in at least one surface thereof, the grooves in said washers when the latter are juxtaposed, providing narrow passageways from the interior to the exterior, said sleeve encompassing at least a portion of said rigid tube permitting flow of fluid therethrough from the bore of said rigid tube into the chamber in which said flow member is positioned.
Claim 7
Dependent Claim
76 words
The combination set forth in claim 4 in which said rigid tube has a plurality of perforations adjacent its retained end and said stack of washers encompasses said rigid tube only in the region of said plurality of perforations, the inner end of said rigid tube having a perforated screen extending thereacross and the portion of said rigid tube between said perforated screen and the adjacent end of the stack of washers being devoid of openings.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |