US3969868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulation structure
Assignee: Winnebago Industries Inc
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Filing: 1974-10-10
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Granted: 1976-07-20
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Expires: 1994-10-10
Abstract
Abstract A sandwich panel multi-sided structure mountable on a vehicle body, as a pick-up truck or trailer. The structure is formed from a single flat sandwich panel comprising a bendable sheet metal facing and a rigid plywood facing bonded to opposite sides of a plastic foam core. The core is a compressible expanded polystyrene foam. The panel is provided with spaced pairs of transverse grooves extended through the rigid plywood facing toward the bendable metal facing. The grooves are along the corner sections and divide the panel into a roof section and opposite side sections. The side sections have openings for receiving window structures. The structure is formed by bending the sheet metal facing and compressing the core along the corner sections to form a roof converging outwardly and downwardly from a longitudinal ridge and upright side walls. The back of the pick-up cover is closed with an end wall having a door.
Inventors
- 👤 Huston K. Bainter
- 👤 Marvin E. Nerem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:08
CPC Classifications
B; B62; B62D; B62D29/00; B62D29/04; B62D33/00; B62D33/04; B62D63/00; B62D63/06; B62D63/08; E; E04; E04C; E04C2/00; E04C2/02; E04C2/26; E04C2/284; E04C2/296; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/2457; Y10T428/24802; Y10T428/24851
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
157 words
An insulation board structure comprising: a cellular plastic foam member having a first side and a second side, a continuous deformable first sheet member covering and secured to the first side of the foam member, adhesive means attaching the entire first side to the first sheet member, said foam member having a series of truncated, V-shaped grooves formed substantially through the thickness of the foam member, said grooves extending from the second side toward the first side, the apexes of said grooves being spaced from the first sheet member, said foam member being continuous adjacent the first sheet member, second sheet members covering the second side of the foam member between said grooves, adhesive means attaching the second side to the second sheet members, and rigid members located between said first and second sheet members adjacent opposite transverse edges of the sheet members, said rigid members having end surfaces used when the insulation board structure is installed.
Claim 2
Dependent Claim
157 words
An insulation board structure comprising: a cellular plastic foam member having a first side and a second side, a continuous deformable first sheet member covering and secured to the first side of the foam member, adhesive means attaching the entire first side to the first sheet member, said foam member having a series of truncated, V-shaped grooves formed substantially through the thickness of the foam member, said grooves extending from the second side toward the first side, the apexes of said grooves being spaced from the first sheet member, said foam member being continuous adjacent the first sheet member, second sheet members covering the second side of the foam member between said grooves, adhesive means attaching the second side to the second sheet members, and rigid members located between said first and second sheet members adjacent opposite transverse edges of the sheet members, said rigid members having end surfaces used when the insulation board structure is installed.
Claim 3
Dependent Claim
16 words
The insulation board structure of claim 1 wherein: the second sheet member is of rigid material.
Claim 4
Dependent Claim
21 words
The insulation board structure of claim 1 wherein: said continuous deformable first sheet member extends beyond the ends of the grooves.
Claim 5
Dependent Claim
54 words
The insulation board structure of claim 1 including: second rigid members located between the first and second sheet members and adjacent the longitudinal sides of the foam member and means for securing the second rigid members to said first and second sheet members, said first sheet member extended outwardly from the second rigid members.
Claim 6
Dependent Claim
25 words
The structure of claim 4 wherein: said means for securing the second rigid members to said first and second sheet members comprises an adhesive material.
Claim 7
Dependent Claim
157 words
An insulation structure comprising: a cellular plastic foam member having a first generally flat side and a second generally flat side opposite the first side, a continuous deformable first sheet member located adjacent said first side, means securing said first sheet member to said first side, a rigid second sheet member located adjacent the second side, means securing the second sheet member to said second side, a series of truncated V-shaped grooves formed in said rigid second sheet member and the foam member, said grooves extending substantially through the rigid sheet member and through substantially the thickness of the foam member, said foam member being continuous adjacent the first sheet member, said first and second member having opposite ends and longitudinal edges, and rigid means located between said first and second sheet members adjacent the opposite ends of the first and second sheet members, said rigid means having end surfaces used when the insulation structure is installed.
Claim 8
Dependent Claim
157 words
An insulation structure comprising: a cellular plastic foam member having a first generally flat side and a second generally flat side opposite the first side, a continuous deformable first sheet member located adjacent said first side, means securing said first sheet member to said first side, a rigid second sheet member located adjacent the second side, means securing the second sheet member to said second side, a series of truncated V-shaped grooves formed in said rigid second sheet member and the foam member, said grooves extending substantially through the rigid sheet member and through substantially the thickness of the foam member, said foam member being continuous adjacent the first sheet member, said first and second member having opposite ends and longitudinal edges, and rigid means located between said first and second sheet members adjacent the opposite ends of the first and second sheet members, said rigid means having end surfaces used when the insulation structure is installed.
Claim 9
Dependent Claim
24 words
The structure of claim 6 wherein: the first sheet member has edge portions that extend outwardly from opposite edge portions of the foam member.
Claim 10
Dependent Claim
32 words
The structure of claim 6 wherein: said first sheet member is an aluminum sheet member and said second sheet member is a plywood sheet member, said foam member is a polystyrene foam.
Claim 11
Dependent Claim
21 words
The structure of claim 6 including: at least one opening through said first sheet member, foam member and second sheet member.
Claim 12
Dependent Claim
52 words
The insulation structure of claim 6 including: second rigid means located between the first and second sheet members adjacent the longitudinal edges of the sheet members, and means for securing the second rigid means to said first and second sheet members, said first sheet member extended outwardly from said second rigid means.
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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) | 1979-07-20 | 1980-01-19 | 1980-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-20 | 1984-01-19 | 1984-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-20 | 1988-01-19 | 1988-07-20 | $7700.00 | Window Closed / Lapsed |