US5375735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank of low unitary weight notably usable for stocking fluids under pressure and the manufacturing process thereof
Assignee: IFP Energies nouvelles
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Filing: 1994-04-18
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Granted: 1994-12-27
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Expires: 2014-04-18
Abstract
Abstract A tank or bottle including two end portions separated by a corrugated cylindrical body, with the corrugated cylindrical body being circumferentially reinforced. A longitudinal reinforcement is disposed along an entire outer surface of the tank with the exception of openings provided in the end portions for accommodating closure elements, whereby it is possible to reduce a thickness of the end portions and to reduce the overall weight of the tank.
Inventors
- 👤 Michel Huvey
- 👤 Jacques Cheron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:32
CPC Classifications
B; B29; B29C; B29C63/00; B29C63/24; B29C53/00; B29C53/80; B29C53/8008; B29C53/805; B29D; B29D22/00; B29D22/003; F; F17; F17C; F17C1/00; F17C1/02; F17C1/04; F17C1/06; F17C1/16; B29L; B29L2016/00; B29L2031/00; B29L2031/712; B29L2031/7154; B29L2031/7156; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/0123; F17C2201/05; F17C2201/054; F17C2201/056; F17C2201/058; F17C2203/00; F17C2203/01; F17C2203/011; F17C2203/012; F17C2203/03; F17C2203/0304; F17C2203/0329; F17C2203/06; F17C2203/0602; F17C2203/0604; F17C2203/0607; F17C2203/0612; F17C2203/0614; F17C2203/0621; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0658; F17C2203/066; F17C2203/0663; F17C2203/0668; F17C2203/067; F17C2203/0673; F17C2205/00; F17C2205/01; F17C2205/0103; F17C2205/0111; F17C2205/0123; F17C2205/0126; F17C2205/0153; F17C2205/0157; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0388; F17C2205/0394; F17C2205/0397; F17C2209/00; F17C2209/21; F17C2209/2109; F17C2209/2118; F17C2209/2127; F17C2209/2154; F17C2209/22; F17C2209/221; F17C2209/225; F17C2209/227; F17C2209/23; F17C2209/232; F17C2209/234; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0107; F17C2223/0123; F17C2223/013; F17C2223/0146; F17C2223/0153; F17C2223/03; F17C2223/033; F17C2223/035; F17C2223/036; F17C2260/00; F17C2260/01; F17C2260/011; F17C2260/012; F17C2270/00; F17C2270/07; F17C2270/0745
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
133 words
A tank for accommodating fluids under pressure, the tank comprising an inner sheath including a corrugated cylindrical body and two end portions assembled to said cylindrical body at opposite ends thereof, at least one of said end portions includes at least one opening and means disposed in said at least one opening for enabling a selective communication of an interior of the tank with the outside, and means disposed over an entire outer surface of the inner sheath except for said at least one opening for withstanding a longitudinal traction of the tank, wherein the corrugations of the corrugated cylindrical body have a shallow pitch, and wherein an outer portion of the corrugations of said corrugated cylindrical body is filled with a composition comprising reinforcing fibers for circumferentially reinforcing the corrugated cylindrical body.
Claim 2
Dependent Claim
133 words
A tank for accommodating fluids under pressure, the tank comprising an inner sheath including a corrugated cylindrical body and two end portions assembled to said cylindrical body at opposite ends thereof, at least one of said end portions includes at least one opening and means disposed in said at least one opening for enabling a selective communication of an interior of the tank with the outside, and means disposed over an entire outer surface of the inner sheath except for said at least one opening for withstanding a longitudinal traction of the tank, wherein the corrugations of the corrugated cylindrical body have a shallow pitch, and wherein an outer portion of the corrugations of said corrugated cylindrical body is filled with a composition comprising reinforcing fibers for circumferentially reinforcing the corrugated cylindrical body.
Claim 3
Dependent Claim
27 words
A tank according to claim 1, wherein the composition comprising reinforcing fibers is one of an epoxy resin, a thermal setting resin or a heat convertible resin.
Claim 4
Dependent Claim
43 words
A tank according to claim 1, wherein the means for withstanding the longitudinal traction includes fibers wound in at least one of a polar or a helicoidal manner with a long pitch and a braid disposed on the outer surface of the tank.
Claim 5
Dependent Claim
16 words
A tank according to claim 1, wherein the inner sheath is fashioned of an extrudable material.
Claim 6
Dependent Claim
14 words
A tank according to claim 4, wherein the extrudable material is a thermoplastic material.
Claim 7
Dependent Claim
24 words
A tank according to claim 1, wherein the composition comprising reinforcing fibers is a photocurable resin stabilized by an exposure to an ultraviolet lamp.
Claim 8
Dependent Claim
32 words
A tank according to claim 1, wherein the composition is a heat convertible resin stabilized by being maintained at a stabilization temperature in conditions so as to enable crosslinking of the fibers.
Claim 9
Dependent Claim
26 words
A tank according to claim 1, wherein the composition is a thermosetting resin stabilized by heating to a temperature for allowing a hardening of the resin.
Claim 10
Dependent Claim
40 words
A tank according to claim 1, wherein the means for withstanding longitudinal traction includes an aramid winding impregnated with a thermoplastic elastomer, and wherein ends of the winding are fastened at securing points disposed at polar areas of the tank.
Claim 11
Dependent Claim
20 words
A tank according to claim 1, wherein a protective layer composed of a solution of thermoplastic elastomer surrounds the tank.
Claim 12
Dependent Claim
50 words
A tank according to claim 1, wherein the composition comprising reinforcing fibers is a resin, and wherein the cylindrical body is covered with a sheet made of a material substantially non-permeable to said resin so as to maintain the resin in place in the corrugations of the corrugated cylindrical body.
Claim 13
Dependent Claim
35 words
A tank according to claim 2, wherein at least one end of the tank is fitted with means for selectively allowing communication with an exterior of the tank while providing for a tight sealing thereof.
Claim 14
Dependent Claim
15 words
A tank according to claim 2, wherein the tank is disposed in a protective jacket.
Claim 15
Dependent Claim
37 words
A tank according to claim 2, wherein both of said end portions are provided with at least one opening respectively accommodating the means for enabling a selective communication of an interior of the tank with the outside.
Claim 16
Dependent Claim
24 words
A tank according to claim 2, wherein the end portions are fashioned of the same material as a material of the corrugated cylindrical body.
Claim 17
Dependent Claim
24 words
A tank according to claim 2, wherein the end portions are fashioned of a material different from a material of the corrugated cylindrical body.
Claim 18
Dependent Claim
19 words
A tank according to claim 2, wherein the end portions are fashioned by one of thermal forming and injection.
References Cited (Backward Citations)
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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) | 1997-12-26 | 1998-06-27 | 1998-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-12-26 | 2002-06-27 | 2002-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-12-26 | 2006-06-27 | 2006-12-27 | $7700.00 | Window Closed / Lapsed |