US4699288A
Expired / Lapsed
US
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High pressure vessel construction
Assignee: Fiber Science Inc
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Filing: 1986-04-28
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Granted: 1987-10-13
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Expires: 2006-04-28
Abstract
Abstract A high pressure vessel construction in the form of an elongate tank includes a plurality of layers of resin impregnated graphite fibers and a plurality of layers of a hybrid of resin impregnated glass and polymer fibers, with the glass and polymer fiber layers alternating with the graphite fiber layers. The outermost layers are hoop wound and the innermost layers are helically wound. A layer of elastomer material is joined to the interior surface of the innermost layer of fibers, and a layer of stiff composite material is joined to the interior surface of the elastomer layer.
Inventors
- 👤 Raja Mohan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:26
CPC Classifications
F; F16; F16J; F16J12/00; B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60; B29C53/602; F17; F17C; F17C1/00; F17C1/16; B29L; B29L2031/00; B29L2031/712; B29L2031/7154; B29L2031/7156; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2203/00; F17C2203/06; F17C2203/0602; F17C2203/0604; F17C2203/0607; F17C2203/0612; F17C2203/0614; F17C2203/0621; F17C2203/0634; F17C2203/0658; F17C2203/0663; F17C2203/0665; F17C2203/067; F17C2203/0673; F17C2205/00; F17C2205/03; F17C2205/0388; F17C2205/0394; F17C2205/0397; F17C2209/00; F17C2209/21; F17C2209/2154; F17C2209/2163; F17C2260/00; F17C2260/01; F17C2260/011
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
39 words
A high pressure vessel construction comprising an inner layer of resin impregnated graphite fibers wound to form an enclosure, and an outer layer hybrid of resin impregnated glass and polymer fibers wound about the inner layer and adhered thereto.
Claim 2
Dependent Claim
39 words
A high pressure vessel construction comprising an inner layer of resin impregnated graphite fibers wound to form an enclosure, and an outer layer hybrid of resin impregnated glass and polymer fibers wound about the inner layer and adhered thereto.
Claim 3
Dependent Claim
46 words
A vessel construction as in claim 1 further comprising one or more additional wound layers of resin impregnated graphite fibers, and one or more additional wound layers of resin-impregnated glass and polymer fibers, with the glass and polymer fiber layers alternating with the graphite fiber layers.
Claim 4
Dependent Claim
30 words
A vessel construction as in claim 2 wherein the innermost layer of graphite fibers is helically wound, and wherein the outermost layer of glass and polymer fibers is hoop wound.
Claim 5
Dependent Claim
52 words
A vessel construction as in claim 3 wherein there are four layers of graphite fibers, the two outermost being hoop wound and the two innermost being helically wound, and wherein there are four layers of glass and polymer fibers, the two outermost being hoop wound and the two innermost being helically wound.
Claim 6
Dependent Claim
44 words
A vessel construction as in claim 2 further comprising a layer of elastomer material adhered to the interior surface of the innermost layer of glass and polymer fibers, and a layer of stiff composite material adhered to the interior surface of the elastomer layer.
Claim 7
Dependent Claim
23 words
A vessel construction as in claim 5 wherein the elastomer material is rubber and the stiff composite material is graphite reinforced composite material.
Claim 8
Dependent Claim
22 words
A vessel construction as in claim 1 wherein the polymer fiber is selected to have high tensile strength and low compressive strength.
Claim 9
Dependent Claim
48 words
A high pressure tank comprising a first layer of high modulus, high strength fibers wound to form an enclosure having a generally circular cross-section, and a second layer of low modulus, high strength intra-ply combination of two types of fibers wound about and joined to the first layer.
Claim 10
Dependent Claim
48 words
A high pressure tank comprising a first layer of high modulus, high strength fibers wound to form an enclosure having a generally circular cross-section, and a second layer of low modulus, high strength intra-ply combination of two types of fibers wound about and joined to the first layer.
Claim 11
Dependent Claim
37 words
A tank as in claim 8 further comprising additional layers wound of high modulus, high strength fibers joined to and alternating with additional layers wound of low modulus, high strength combinations of said two types of fibers.
Claim 12
Dependent Claim
24 words
A tank as in claim 9 wherein said high modulus, high strength fiber is selected from the group consisting of graphite and aramid fibers.
Claim 13
Dependent Claim
21 words
A tank as in claim 10 wherein said low modulus, high strength fiber combination is glass and polymer fibers wound together.
Claim 14
Dependent Claim
21 words
A tank as in claim 11 wherein the polymer fiber is selected to have high tensile strength and low compressive strength.
Claim 15
Dependent Claim
41 words
A tank as in claim 9 wherein a layer of high modulus, high strength fibers is the innermost layer and is helically wound, and wherein a layer of low modulus, high strength fibers is the outermost layer and is hoop wound.
Claim 16
Dependent Claim
40 words
A tank as in claim 13 further comprising a layer of elastomer material joined to the interior surface of the innermost layer of fibers, and a layer of stiff composite material joined to the interior surface of the elastomer layer.
Claim 17
Dependent Claim
28 words
A tank as in claim 14 wherein the elastomer material is selected to have low permeability and wherein the stiff composite material is a graphite reinforced composite material.
Claim 18
Dependent Claim
23 words
A tank as in claim 13 wherein the tank is generally elongate, having a hollow cylindrical center section, and hollow spherical end sections.
Claim 19
Dependent Claim
45 words
A tank as in claim 16 wherein at least the two innermost layers are wound to form the end sections and a portion of the center section, and wherein at least the two outermost layers are wound to form a portion of the center section.
Claim 20
Dependent Claim
27 words
A tank as in claim 9 wherein the modulus of the low modulus, high strength fibers is about one-third the modulus of high modulus, high strength fibers.
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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) | 1990-10-12 | 1991-04-13 | 1991-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-12 | 1995-04-13 | 1995-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-12 | 1999-04-13 | 1999-10-13 | $7700.00 | Window Closed / Lapsed |