US3722548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure vessel
Assignee: EXOL Inc A CORP OF DE
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Filing: 1971-10-13
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Granted: 1973-03-27
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Expires: 1991-10-13
Abstract
Abstract The present invention relates to a pressure reservoir comprising a rigid envelope having two ports, a flexible separator in the form of a bladder disposed in the interior of the said envelope and dividing it into two compartments for fluids which are respectively in communication with said ports, the bladder being adapted to move to the vicinity of one of the said ports, which is equipped with a strainer device or screen against which the bladder abuts in operation.
Inventors
- 👤 J Mercier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:10
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/54; B65D88/58; B65D88/60; B65D88/62; F; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/10; F15B1/18; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; F16L55/052; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/30; F15B2201/315; F15B2201/3152; F15B2201/40; F15B2201/41; F15B2201/415; F15B2201/4155; F15B2201/43
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
174 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, one of said chambers being adapted to receive gas under pressure and the other of said chambers being adapted to receive fluid such as oil under pressure, said port leading into said oil chamber defining an oil port of relatively large diameter, a screen assembly positioned in said oil port and extending transversely across the latter, said screen assembly comprising two juxtaposed perforated plates, one of said plates defining a support plate against which the separator is adapted to abut in operation of said pressure vessel and the other of said plates defining a base plate a portion of which is engaged by said support plate, said support plate being relatively thin as compared to said base plate, said base plate being curved and having its convex surface oriented toward said support plate, and means rigid with said container to support the periphery of said base plate.
Claim 2
Dependent Claim
174 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, one of said chambers being adapted to receive gas under pressure and the other of said chambers being adapted to receive fluid such as oil under pressure, said port leading into said oil chamber defining an oil port of relatively large diameter, a screen assembly positioned in said oil port and extending transversely across the latter, said screen assembly comprising two juxtaposed perforated plates, one of said plates defining a support plate against which the separator is adapted to abut in operation of said pressure vessel and the other of said plates defining a base plate a portion of which is engaged by said support plate, said support plate being relatively thin as compared to said base plate, said base plate being curved and having its convex surface oriented toward said support plate, and means rigid with said container to support the periphery of said base plate.
Claim 3
Dependent Claim
32 words
The combination set forth in claim 1 in which the perforations in said support plate are of relatively small diameter as compared to the diameter of the perforations in said base plate.
Claim 4
Dependent Claim
27 words
The combination set forth in claim 1 in which said support plate is curved having its convex surface oriented toward the convex surface of said base plate.
Claim 5
Dependent Claim
40 words
The combination set forth in claim 1 in which said support plate is curved having its convex surface oriented toward the convex surface of said base plate, the centers of said plates being in engagement and secured to each other.
Claim 6
Dependent Claim
17 words
The combination set forth in claim 4 in which the centers of said plates are riveted together.
Claim 7
Dependent Claim
17 words
The combination set forth in claim 4 in which the centers of said plates are welded together.
Claim 8
Dependent Claim
86 words
The combination set forth in claim 1 in which said screen assembly comprises a sleeve of rigid material having an annular abutment surface adjacent one end of the bore thereof, the periphery of said base plate being seated on said annular abutment surface, the periphery of said support plate being secured to the sleeve adjacent its other end, said support plate being curved and having its convex surface oriented toward the convex surface of said base plate with the centers of said plates being secured together.
Claim 9
Dependent Claim
42 words
The combination set forth in claim 7 in which said annular abutment surface is beveled and the periphery of said base plate restS on said beveled surface, said base plate being secured at its periphery to the inner surface of said sleeve.
Claim 10
Dependent Claim
56 words
The combination set forth in claim 7 in which said sleeve has an annular groove in its inner surface adjacent the other end thereof, said support plate has its periphery positioned in said annular groove and said other end of said sleeve is bent inwardly securely to retain the periphery of the support plate in position.
Claim 11
Dependent Claim
106 words
The combination set forth in claim 1 in which said container has a sleeve extending from one end thereof the bore of said sleeve defining the oil port, said screen assembly comprises a sleeve of rigid material positioned in said container sleeve, said support plate being curved and having its convex surface oriented toward the convex surface of said base plate, the centers of said plates being secured together, the peripheries of said plates being secured to the inner surface of the bore of said screen assembly sleeve at longitudinally spaced positions, and means are provided releasably to retain said screen assembly in said container sleeve.
Claim 12
Dependent Claim
90 words
The combination set forth in claim 10 in which the inner end of the oil port has an inwardly extending flange defining an annular shoulder, said screen assembly sleeve is of reduced diameter at its inner end defining an outwardly extending annular shoulder adapted to abut against the shoulder defined by said annular flange, said container sleeve having an annular groove longitudinally spaced from the shoulder defined by said annular flange and a snap ring positioned in said annular groove restrains outward movement of the sleeve of said screen assembly.
Claim 13
Dependent Claim
30 words
The combination set forth in claim 11 in which the outer periphery of the outer end of the screen assembly sleeve is beveled, said beveled surface engaging said snap ring.
Claim 14
Dependent Claim
73 words
The combination set forth in claim 11 in which said screen assembly sleeve has an elongated annular groove in its outer surface defining a restraining shoulder at one end adjacent the first annular shoulder of said screen assembly sleeve, said container sleeve has a transverse threaded opening and a retaining screw positioned in said threaded opening with the inner end of said screw extending into the annular groove in said screen assembly sleeve.
Claim 15
Dependent Claim
117 words
The combination set forth in claim 13 in which said screen assembly sleeve has an elongated annular groove in its outer surface defining a restraining shoulder at one end adjacent the first annular shoulder of said screen assembly sleeve, said container sleeve has a transverse threaded opening and a retaining screw positioned in said threaded opening with the inner end of said screw extending into the annular groove in said screen assembly sleeve, the portion of the wall of said screen assembly sleeve between the secured peripheries of said plates has a passageway therethrough whereby when said screw is removed the oil in the container will bleed through the passageway and the opening in the container sleeve.
Claim 16
Dependent Claim
168 words
The combination set forth in claim 1 in which said ports are axially aligned, said deformable partition is a bladder extending axially in said container having an opening at one end secured to one of said ports and having its closed end normally spaced from said support plate, said support plate being curved having its concave surface oriented toward the closed end of said bladder and its convex surface oriented toward the convex surface of said base plate, the end of said container having the oil port having a sleeve extending axially therefrom the bore of which defines said oil port, said screen assembly comprising a rigid sleeve positioned in said container sleeve and releasably retained therein, said plates being positioned in said screen assembly sleeve and having their outer periphery secured to the inner surface of said screen assembly sleeve at longitudinally spaced positions, said screen assembly sleeve adjacent its outer end having an annular abutment surface on which the periphery of said base plate is seated.
Claim 17
Dependent Claim
144 words
As an article of manufacture, a screen assembly for the oil port of a pressure vessel, of the type having a deformable partition therein, said screen assembly comprising a sleeve of rigid material having an annular abutment surface formed adjacent one end thereof on the inner surface of the sleeve, a pair of juxtaposed plates positioned in said sleeve, one of said plates defining a support plate and the other of said plates defining a base plate, said two plates being curved, the periphery of said base plate being seated on said annular abutment surface, means to secure the periphery of said support plate to said sleeve adjacent the other end thereof, said support plate having its convex surface oriented toward the convex surface of said base plate with the centers of said plates being in engagement, both of said plates having perforations therethrough.
Claim 18
Dependent Claim
144 words
As an article of manufacture, a screen assembly for the oil port of a pressure vessel, of the type having a deformable partition therein, said screen assembly comprising a sleeve of rigid material having an annular abutment surface formed adjacent one end thereof on the inner surface of the sleeve, a pair of juxtaposed plates positioned in said sleeve, one of said plates defining a support plate and the other of said plates defining a base plate, said two plates being curved, the periphery of said base plate being seated on said annular abutment surface, means to secure the periphery of said support plate to said sleeve adjacent the other end thereof, said support plate having its convex surface oriented toward the convex surface of said base plate with the centers of said plates being in engagement, both of said plates having perforations therethrough.
Claim 19
Dependent Claim
45 words
The combination set forth in claim 16 in which said support plate is relatively thin as compared to said base plate and the perforations in said support plate are of relatively small diameter as compared to the diameter of the perforations in said base plate.
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) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |