US5143790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrally-damped steel composite laminated structure and method of attaching same
Assignee: Northrop Grumman Corp
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Filing: 1989-08-09
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Granted: 1992-09-01
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Expires: 2009-08-09
Abstract
Abstract A laminated panel is provided by; a reinforced composite core of either an organic matrix or a metal matrix, bonded by at least one layer of adhesively bonded viscoelastic damping polymer film and face sheeting of steel for use as integrally-damped steel/composite laminates in extended ship structures, tanks, tactical mobile field units, mobile computer rooms, seismic equipment support structures or any other load-bearing steel structures utilized in high noise/high vibration environments. Utilization of an organic matrix composite core in the integrally-damped steel/composite laminate provides an effective toxicity and flammability barrier for use in human/machine interfaces. Utilization of a metal matrix composite core in the integrally-damped steel/composite laminate provides an effective flammability barrier. Internally tapered edge adapters to interconnect the laminates to themselves or to other steel structures is also provided.
Inventors
- 👤 Stanley S. Sattinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:27
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B32B27/00; B32B27/12; E; E04; E04C; E04C2/00; E04C2/02; E04C2/26; G; G10; G10K; G10K11/00; G10K11/16; G10K11/162; G10K11/168; B32B2305/00; B32B2305/08; B32B2307/00; B32B2307/30; B32B2307/306; B32B2307/3065; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
70 words
A laminated panel, comprising: a reinforced load bearing composite core, said reinforced load-bearing composite core having a first and a second face; at least one layer of adhesively bonded viscoelastic damping polymer film, said layer bonded to at least one of said faces of said reinforced composite core; and at least one sheet of steel, said sheet of steel layered upon said layer of adhesively bonded viscoelastic damping polymer film.
Claim 2
Dependent Claim
70 words
A laminated panel, comprising: a reinforced load bearing composite core, said reinforced load-bearing composite core having a first and a second face; at least one layer of adhesively bonded viscoelastic damping polymer film, said layer bonded to at least one of said faces of said reinforced composite core; and at least one sheet of steel, said sheet of steel layered upon said layer of adhesively bonded viscoelastic damping polymer film.
Claim 3
Dependent Claim
15 words
A laminated panel, as in claim 1, wherein said reinforced composite core is fiber reinforced.
Claim 4
Dependent Claim
15 words
A laminated panel, as in claim 1 wherein said reinforced composite core is particulate reinforced.
Claim 5
Dependent Claim
17 words
A laminated panel as in claim 1 wherein said reinforced composite core is a metal matrix composite.
Claim 6
Dependent Claim
17 words
A laminated panel as in claim 1 wherein said reinforced composite core is an organic matrix composite.
Claim 7
Dependent Claim
117 words
An integrally-damped steel/composite laminate, comprising: a reinforced load-bearing composite core, said reinforced composite core having a first and a second face; a first and a second layer of adhesively bonded viscoelastic damping polymer film, said first layer of adhesively bonded viscoelastic damping polymer film bonded to said first face of said reinforced composite core and said second layer of adhesively bonded viscoelastic damping polymer film bonded to said second face of said reinforced composite core; and a first and a second sheet of steel, said first sheet of steel bonded to said first layer of adhesively bonded viscoelastic damping polymer and said second sheet of steel bonded to said second layer of adhesively bonded viscoelastic damping polymer.
Claim 8
Dependent Claim
117 words
An integrally-damped steel/composite laminate, comprising: a reinforced load-bearing composite core, said reinforced composite core having a first and a second face; a first and a second layer of adhesively bonded viscoelastic damping polymer film, said first layer of adhesively bonded viscoelastic damping polymer film bonded to said first face of said reinforced composite core and said second layer of adhesively bonded viscoelastic damping polymer film bonded to said second face of said reinforced composite core; and a first and a second sheet of steel, said first sheet of steel bonded to said first layer of adhesively bonded viscoelastic damping polymer and said second sheet of steel bonded to said second layer of adhesively bonded viscoelastic damping polymer.
Claim 9
Dependent Claim
19 words
An integrally-damped steel/composite laminate as in claim 6 wherein said reinforced composite core is a fiber reinforced composite core.
Claim 10
Dependent Claim
19 words
An integrally-damped steel/composite laminate as in claim 6 wherein said reinforced composite core is a particulate reinforced composite core.
Claim 11
Dependent Claim
17 words
An integrally-damped steel/composite laminate, as in claim 6, wherein said reinforced composite core is a metal matrix/composite.
Claim 12
Dependent Claim
18 words
An integrally-damped steel/composite laminate, as in claim 6, wherein said reinforced composite core is an organic matrix composite.
Claim 13
Dependent Claim
80 words
A load bearing, toxicity barrier and flammability barrier laminate, comprising: a reinforced, load-bearing organic matrix composite core, said reinforced, organic matrix composite core having a first and a second face; at least one layer of adhesively bonded viscoelastic damping polymer film, said layer bonded to said first or said second face of said reinforced, organic matrix composite core; and at least one sheet of steel, said sheet of steel layered upon said layer of adhesively bonded viscoelastic damping polymer film.
Claim 14
Dependent Claim
80 words
A load bearing, toxicity barrier and flammability barrier laminate, comprising: a reinforced, load-bearing organic matrix composite core, said reinforced, organic matrix composite core having a first and a second face; at least one layer of adhesively bonded viscoelastic damping polymer film, said layer bonded to said first or said second face of said reinforced, organic matrix composite core; and at least one sheet of steel, said sheet of steel layered upon said layer of adhesively bonded viscoelastic damping polymer film.
Claim 15
Dependent Claim
23 words
A load bearing toxicity barrier and flammability barrier laminate as in claim 11 wherein said reinforced, organic matrix composite core is fiber reinforced.
Claim 16
Dependent Claim
23 words
A load bearing, toxicity barrier and flammability barrier laminate as in claim 11 wherein said reinforced organic matrix composite core is particulate reinforced.
Claim 17
Dependent Claim
22 words
A load bearing, toxicity barrier and flammability barrier laminate as in claim 11 wherein said organic matrix composite core is a ceramic.
Claim 18
Dependent Claim
77 words
A load bearing, flammability barrier laminate, comprising: a reinforced, metal matrix composite core, said reinforced, load-bearing metal matrix composite core having a first and a second face; at least one layer of adhesively bonded viscoelastic damping polymer film, said layer bonded to said first or said second face of said reinforced metal matrix composite core; and at least one sheet of steel, said sheet of steel layered upon said layer of adhesively bonded viscoelastic damping polymer film.
Claim 19
Dependent Claim
77 words
A load bearing, flammability barrier laminate, comprising: a reinforced, metal matrix composite core, said reinforced, load-bearing metal matrix composite core having a first and a second face; at least one layer of adhesively bonded viscoelastic damping polymer film, said layer bonded to said first or said second face of said reinforced metal matrix composite core; and at least one sheet of steel, said sheet of steel layered upon said layer of adhesively bonded viscoelastic damping polymer film.
Claim 20
Dependent Claim
20 words
A load bearing, flammability barrier laminate, as in claim 15 wherein said reinforced metal matrix composite core is fiber reinforced.
Claim 21
Dependent Claim
20 words
A load bearing, flammability barrier laminate, as in claim 15 wherein said metal reinforced matrix composite core is particulate reinforced.
Claim 22
Dependent Claim
20 words
A load bearing, flammability barrier laminate, as in claim 15 wherein said metal matrix composite core is a metal alloy.
Claim 23
Independent Claim
87 words
A method of forming a load-bearing, toxicity barrier and flammability barrier, integrally damped, steel/composite laminate, said method comprising the steps of: providing a reinforced, organic matrix, composite core, said composite core having a first and a second face; providing at least one layer of adhesively bonded viscoelastic damping polymer film, said layer bonded to said first or said second face of said composite core; and providing at least one sheet of steel, said sheet of steel layered upon said layer of adhesively bonded viscoelastic damping polymer film.
Claim 24
Independent Claim
87 words
A method of forming a load-bearing, toxicity barrier and flammability barrier, integrally damped, steel/composite laminate, said method comprising the steps of: providing a reinforced, organic matrix, composite core, said composite core having a first and a second face; providing at least one layer of adhesively bonded viscoelastic damping polymer film, said layer bonded to said first or said second face of said composite core; and providing at least one sheet of steel, said sheet of steel layered upon said layer of adhesively bonded viscoelastic damping polymer film.
Claim 25
Dependent Claim
127 words
Internally tapered edge adapters, comprising: an integrally-damped laminate, said laminate having a reinforced composite core tapered on at least one end, at least one layer of adhesively bonded viscoelastic damping polymer film, and at least one sheet of steel layered upon said layer of adhesively bonded viscoelastic damping polymer film; a mounting means, said mounting means seam welded to said integrally-damped laminate, said mounting means having a first and a second end, said first end of said mounting means having a receptacle, said receptacle operable to interfit said taper of said reinforced composite core, and said second end of said mounting means operable to be strength welded to a metal surface; and an adhesive bond, said adhesive bond layered upon said taper of said reinforced composite core.
Claim 26
Dependent Claim
127 words
Internally tapered edge adapters, comprising: an integrally-damped laminate, said laminate having a reinforced composite core tapered on at least one end, at least one layer of adhesively bonded viscoelastic damping polymer film, and at least one sheet of steel layered upon said layer of adhesively bonded viscoelastic damping polymer film; a mounting means, said mounting means seam welded to said integrally-damped laminate, said mounting means having a first and a second end, said first end of said mounting means having a receptacle, said receptacle operable to interfit said taper of said reinforced composite core, and said second end of said mounting means operable to be strength welded to a metal surface; and an adhesive bond, said adhesive bond layered upon said taper of said reinforced composite core.
Claim 27
Dependent Claim
16 words
Internally tapered edge adapters as in claim 20 wherein said reinforced composite core is fiber reinforced.
Claim 28
Dependent Claim
16 words
Internally tapered edge adapters as in claim 20 wherein said reinforced composite core is particulate reinforced.
Claim 29
Dependent Claim
125 words
Internally tapered edge adapters, comprising: an integrally-damped laminate, said laminate having a reinforced composite core tapered on at least one end, at least one layer of adhesively bonded viscoelastic damping polymer film, and at least one sheet of steel layered upon said layer of adhesively bonded viscoelastic damping polymer film: a mounting means, said mounting means seam welded to said integrally-damped laminate, said mounting means having a first and a second end, said first end of said mounting means having a receptacle, said receptacle operable to interfit said taper of said reinforced composite core, and said second end of said mounting means operable to be strength welded to a metal surface; and a viscoelastic damping material layered upon said taper of said reinforced composite core.
Claim 30
Dependent Claim
125 words
Internally tapered edge adapters, comprising: an integrally-damped laminate, said laminate having a reinforced composite core tapered on at least one end, at least one layer of adhesively bonded viscoelastic damping polymer film, and at least one sheet of steel layered upon said layer of adhesively bonded viscoelastic damping polymer film: a mounting means, said mounting means seam welded to said integrally-damped laminate, said mounting means having a first and a second end, said first end of said mounting means having a receptacle, said receptacle operable to interfit said taper of said reinforced composite core, and said second end of said mounting means operable to be strength welded to a metal surface; and a viscoelastic damping material layered upon said taper of said reinforced composite core.
Claim 31
Dependent Claim
18 words
Internally tapered edge adapters as in claim 23 wherein said reinforced composite core is a fiber reinforced core.
Claim 32
Dependent Claim
18 words
Internally tapered edge adapters as in claim 23 wherein said reinforced composite core is a particulate reinforced core.
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) | 1995-09-01 | 1996-03-02 | 1996-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-01 | 2000-03-02 | 2000-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-01 | 2004-03-02 | 2004-09-01 | $7700.00 | Window Closed / Lapsed |