US3708938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stainless steel clad aluminum strakes and panels
Assignee: Rohr Inc
•
Filing: 1971-07-14
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Granted: 1973-01-09
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Expires: 1991-07-14
Abstract
Abstract Aluminum extrusions for use as strakes and panels in making vehicle bodies and other structures are clad with thin, stainless steel sheet or foil bonded to their exterior surfaces. The edge portions of each stainless steel cladding sheet extend beyond edge portions of its respective extrusion, and are wrapped over such edges and tucked into grooves provided in the sides of the extrusions. The extrusions are mounted with the grooves of adjacent strakes in slightly spaced apart relation, and hat section or other suitable filler strips of stainless steel are mounted to extend across and bridge the gaps between adjacent grooves, the edges of each filler strip being inserted in the grooves along side the edge portions of the cladding material tucked therein.
Inventors
- 👤 K Tantlinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:53
CPC Classifications
B; B61; B61D; B61D17/00; B61D17/04; B61D17/041; B62; B62D; B62D29/00; B62D29/008
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
144 words
A stainless steel sheathed, extruded aluminum strake structure wherein the invention comprises an extruded aluminum strake body portion having an outer surface either flat or of simple curvature, and having a groove along each side thereof, an integral, structural joint portion on each side of each extrusion and formed for structurally interconnecting adjacent strakes with their side grooves spaced apart to receive the edges of a sealing filler strip therein, a sheathing layer of thin, stainless steel sheet material applied to the outer face of each strake extrusion, an edge portion of each stainless steel sheathing layer along each side thereof being tucked into the side groove along the corresponding side of each extrusion, a layer of adhesive bonding material interposed between each strake extrusion and its respective stainless steel sheathing, and means for sealing to each other the sheathing material of adjacent strakes.
Claim 2
Dependent Claim
144 words
A stainless steel sheathed, extruded aluminum strake structure wherein the invention comprises an extruded aluminum strake body portion having an outer surface either flat or of simple curvature, and having a groove along each side thereof, an integral, structural joint portion on each side of each extrusion and formed for structurally interconnecting adjacent strakes with their side grooves spaced apart to receive the edges of a sealing filler strip therein, a sheathing layer of thin, stainless steel sheet material applied to the outer face of each strake extrusion, an edge portion of each stainless steel sheathing layer along each side thereof being tucked into the side groove along the corresponding side of each extrusion, a layer of adhesive bonding material interposed between each strake extrusion and its respective stainless steel sheathing, and means for sealing to each other the sheathing material of adjacent strakes.
Claim 3
Dependent Claim
58 words
A strake structure as claimed in claim 1 wherein the means for sealing to each other the sheathing material of adjacent strakes comprises a filler strip extending transversely across each such joint, and with the edge portions of each filler strip in fitted relation with the edge portions of the sheathing material of each of the adjacent strakes.
Claim 4
Dependent Claim
47 words
A strake structure as claimed in claim 2 wherein each filler strip is of stainless steel sheet material, and the edge portions of each filler strip are inserted alongside the tucked-in edge portions of the sheathing layers of the strakes on both sides of each such joint.
Claim 5
Dependent Claim
32 words
A strake structure as claimed in claim 3 wherein each edge of each sealing strip is sealed to the edge portion of the sheathing material in the same extrusion edge groove therewith.
Claim 6
Dependent Claim
31 words
A strake structure as claimed in claim 4 wherein each edge portion of each sealing strip is coated with sealant material prior to being inserted in its respective extrusion edge groove.
Claim 7
Dependent Claim
34 words
A strake structure as claimed in claim 1 wherein the adhesive bonding material forms an impervious seal between the aluminum of the extrusion and the stainless steel of the cladding layer of stainless steel.
Claim 8
Dependent Claim
15 words
A strake as claimed in claim 6 wherein the adhesive bonding material is a dielectric.
References Cited (Backward Citations)
US2478993A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |