US4786343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making delamination resistant composites
Assignee: Boeing Co
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Filing: 1985-05-10
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Granted: 1988-11-22
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Expires: 2005-05-10
Abstract
Abstract Fiber reinforced resin composites formed by elements joined by a high shear strength, high fracture toughness adhesive are disclosed. The elements are created in easily produceable cross-sectional shapes such as flat, C-shaped, Z-shaped or T-shaped. When joined, the elements form delamination resistant fiber reinforced resin composites having more complex shapes. The strength of the junctions between a pair of elements, such as a panel and its associated reinforcing members, can be enhanced by fasteners, such as rivets, if desired.
Inventors
- 👤 Paul E. Hertzberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:24
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0003; B29C; B29C65/00; B29C65/48; B29C65/56; B29C65/60; B29C65/601; B29C65/72; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/13; B29C66/131; B29C66/40; B29C66/47; B29C66/474; B29C66/70; B29C66/71; B29C66/72; B29C66/721; B29C70/00; B29C70/04; B29C70/28; B29C70/30; B29D99/001; B29D99/0014; C; C08; C08J; C08J5/00; C08J5/12; C08J5/124; B29C65/4805; B29C65/483; B29C65/4835; B29K; B29K2101/00; B29K2101/10; B29K2105/00; B29K2105/06; B29K2105/24; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24033; Y10T428/30
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
104 words
A method of making a delamination resistant fiber reinforced resin composite comprising the steps of: forming a fiber reinforced resin composite panel from a plurality of plies and a resin matrix; forming a fiber reinforced resin composite reinforcing member from a plurality of plies and a resin matrix; and, bonding said fiber reinforced resin composite panel to said fiber reinforced resin composite reinforcing member with a high shear strength, high toughness, thermosetting resin adhesive layer, said thermosetting resin being different from the resin used to form said resin matrix of said fiber reinforced resin composite panel and said fiber reinforced resin composite reinforcing member.
Claim 2
Independent Claim
104 words
A method of making a delamination resistant fiber reinforced resin composite comprising the steps of: forming a fiber reinforced resin composite panel from a plurality of plies and a resin matrix; forming a fiber reinforced resin composite reinforcing member from a plurality of plies and a resin matrix; and, bonding said fiber reinforced resin composite panel to said fiber reinforced resin composite reinforcing member with a high shear strength, high toughness, thermosetting resin adhesive layer, said thermosetting resin being different from the resin used to form said resin matrix of said fiber reinforced resin composite panel and said fiber reinforced resin composite reinforcing member.
Claim 3
Dependent Claim
49 words
The method claimed in claim 1, wherein the resin used to form said fiber reinforced resin composite panel is cured prior to said fiber reinforced resin composite panel being bonded to said fiber reinforced resin composite reinforcing element by said high shear strength, high toughness, thermosetting resin adhesive layer.
Claim 4
Dependent Claim
46 words
The method claimed in claim 2, wherein the resin used to form said fiber reinforced resin composite reinforcing member is cured prior to said panel being bonded to said fiber reinforced resin composite reinforcing member by said high shear strength, high toughness, thermosetting resin adhesive layer.
Claim 5
Dependent Claim
46 words
The method claimed in claim 1, wherein the resin used to form said fiber reinforced resin composite reinforcing member is cured prior to said panel being bonded to said fiber reinforced resin composite reinforcing member by said high shear strength, high toughness, thermosetting resin adhesive layer.
Claim 6
Dependent Claim
45 words
The method claimed in claim 1, wherein the resin used to form said fiber reinforced resin composite panel, the resin used to form said fiber reinforced resin composite reinforcing member and said high shear strength, high toughness, thermosetting resin adhesive layer are all cured simultaneously.
Claim 7
Dependent Claim
33 words
The method claimed in claim 1, including the step of crossply stitching the plies of said fiber reinforced resin composite panel to enhance the delamination resistance of said fiber reinforced resin composite panel.
Claim 8
Dependent Claim
49 words
The method claimed in claim 6, wherein the resin used to form said fiber reinforced resin composite panel is cured prior to said fiber reinforced resin composite panel being bonded to said fiber reinforced resin composite reinforcing element by said high shear strength, high toughness, thermosetting resin adhesive layer.
Claim 9
Dependent Claim
46 words
The method claimed in claim 7, wherein the resin used to form said fiber reinforced resin composite reinforcing member is cured prior to said panel being bonded to said fiber reinforced resin composite reinforcing member by said high shear strength, high toughness, thermosetting resin adhesive layer.
Claim 10
Dependent Claim
46 words
The method claimed in claim 6, wherein the resin used to form said fiber reinforced resin composite reinforcing member is cured prior to said panel being bonded to said fiber reinforced resin composite reinforcing member by said high shear strength, high toughness, thermosetting resin adhesive layer.
Claim 11
Dependent Claim
45 words
The method claimed in claim 6, wherein the resin used to form said fiber reinforced resin composite panel, the resin used to form said fiber reinforced resin composite reinforcing member and said high shear strength, high toughness, thermosetting resin adhesive layer are all cured simultaneously.
Claim 12
Dependent Claim
37 words
The method claimed in claim 6, including the step of crossply stitching the plies of said fiber reinforced resin composite reinforcing member in order to enhance the delamination resistance of said fiber reinforced resin composite reinforcing member.
Claim 13
Dependent Claim
49 words
The method claimed in claim 11, wherein the resin used to form said fiber reinforced resin composite panel is cured prior to said fiber reinforced resin composite panel being bonded to said fiber reinforced resin composite reinforcing element by said high shear strength, high toughness, thermosetting resin adhesive layer.
Claim 14
Dependent Claim
46 words
The method claimed in claim 12, wherein the resin used to form said fiber reinforced resin composite reinforcing member is cured prior to said panel being bonded to said fiber reinforced resin composite reinforcing member by said high shear strength, high toughness, thermosetting resin adhesive layer.
Claim 15
Dependent Claim
46 words
The method claimed in claim 11, wherein the resin used to form said fiber reinforced resin composite reinforcing member is cured prior to said panel being bonded to said fiber reinforced resin composite reinforcing member by said high shear strength, high toughness, thermosetting resin adhesive layer.
Claim 16
Dependent Claim
45 words
The method claimed in claim 11, wherein the resin used to form said fiber reinforced resin composite panel, the resin used to form said fiber reinforced resin composite reinforcing member and said high shear strength, high toughness, thermosetting resin adhesive layer are all cured simultaneously.
Claim 17
Dependent Claim
55 words
The method claimed in claim 1, wherein said fiber reinforced resin composite reinforcing member is formed of at least two elements, said two elements being juxtaposed along at least one surface and including a further high shear strength, high toughness, thermosetting resin adhesive layer located between said juxtaposed surfaces for attaching said juxtaposed surfaces together.
Claim 18
Dependent Claim
49 words
The method claimed in claim 16, wherein the resin used to form said fiber reinforced resin composite panel is cured prior to said fiber reinforced resin composite panel being bonded to said fiber reinforced resin composite reinforcing element by said high shear strength, high toughness, thermosetting resin adhesive layer.
Claim 19
Dependent Claim
51 words
The method claimed in claim 17, wherein the resins used to form said at least two elements used to form said fiber reinforced resin composite reinforcing member are cured prior to said elements being bonded together and to said panel by said high shear strength, high toughness, thermosetting resin adhesive layers.
Claim 20
Dependent Claim
51 words
The method claimed in claim 16, wherein the resins used to form said at least two elements used to form said fiber reinforced resin composite reinforcing member are cured prior to said elements being bonded together and to said panel by said high shear strength, high toughness, thermosetting resin adhesive layers.
Claim 21
Dependent Claim
53 words
The method claimed in claim 16, wherein the resin used to form said fiber reinforced resin composite panel, the resin used to form said at least two elements used to form said fiber reinforced resin composite reinforcing member and said high shear strength, high toughness, thermosetting resin adhesive layers are all cured simultaneously.
Claim 22
Dependent Claim
33 words
The method claimed in claim 16, including the step of cross-ply stitching the plies of said fiber reinforced resin composite panel to enhance the delamination resistance of said fiber reinforced resin composite panel.
Claim 23
Dependent Claim
49 words
The method claimed in claim 21, wherein the resin used to form said fiber reinforced resin composite panel is cured prior to said fiber reinforced resin composite panel being bonded to said fiber reinforced resin composite reinforcing element by said high shear strength, high toughness, thermosetting resin adhesive layer.
Claim 24
Dependent Claim
51 words
The method claimed in claim 22, wherein the resins used to form said at least two elements used to form said fiber reinforced resin composite reinforcing member are cured prior to said elements being bonded together and to said panel by said high shear strength, high toughness, thermosetting resin adhesive layers.
Claim 25
Dependent Claim
51 words
The method claimed in claim 21, wherein the resins used to form said at least two elements used to form said fiber reinforced resin composite reinforcing member are cured prior to said elements being bonded together and to said panel by said high shear strength, high toughness, thermosetting resin adhesive layers.
Claim 26
Dependent Claim
53 words
The method claimed in claim 21, wherein the resin used to form said fiber reinforced resin composite panel, the resin used to form said at least two elements used to form said fiber reinforced resin composite reinforcing member and said high shear strength, high toughness, thermosetting resin adhesive layers are all cured simultaneously.
Claim 27
Dependent Claim
40 words
The method claimed in claim 21, including the step of cross-ply stitching the plies of said at least two elements used to form said fiber reinforced resin composite reinforcing member in order to enhance the delamination resistance of said elements.
Claim 28
Dependent Claim
49 words
The method claimed in claim 26, wherein the resin used to form said fiber reinforced resin composite panel is cured prior to said fiber reinforced resin composite panel being bonded to said fiber reinforced resin composite reinforcing element by said high shear strength, high toughness, thermosetting resin adhesive layer.
Claim 29
Dependent Claim
51 words
The method claimed in claim 27, wherein the resins used to form said at least two elements used to form said fiber reinforced resin composite reinforcing member are cured prior to said elements being bonded together and to said panel by said high shear strength, high toughness, thermosetting resin adhesive layers.
Claim 30
Dependent Claim
51 words
The method claimed in claim 26, wherein the resins used to form said at least two elements used to form said fiber reinforced resin composite reinforcing member are cured prior to said elements being bonded together and to said panel by said high shear strength, high toughness, thermosetting resin adhesive layers.
Claim 31
Dependent Claim
53 words
The method claimed in claim 26, wherein the resin used to form said fiber reinforced resin composite panel, the resin used to form said at least two elements used to form said fiber reinforced resin composite reinforcing member and said high shear strength, high toughness, thermosetting resin adhesive layers are all cured simultaneously.
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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) | 1991-11-22 | 1992-05-23 | 1992-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-22 | 1996-05-23 | 1996-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-22 | 2000-05-23 | 2000-11-22 | $7700.00 | Window Closed / Lapsed |