US3802145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism and method for providing intra-cell thermal resistance in honeycomb panel cores
Assignee: Rohr Inc
•
Filing: 1972-05-25
•
Granted: 1974-04-09
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Expires: 1992-05-25
Abstract
Abstract The individual cells of the core of a honeycomb panel have inserted therein spaced, transversely extending layers of foil which act as barriers to the transfer of radiant heat through the cells. In a preferred form of the invention these transverse layers are all portions of a single zig-zag or reversely bent strip.
Inventors
- 👤 R Scanlon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:29
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; E04B1/78; E04B1/80; E04B1/806; E04C; E04C2/00; E04C2/30; E04C2/34; E04C2/36; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
137 words
An insulative honeycomb panel comprising a honeycomb core having a multiplicity of individual cells, a heat insulative insert comprising a plurality of layers of thin sheet material fitted into, and extending transversely across the interior of each of a selected plurality of the core cells intermediately of the ends of the core, positioning means including spacing means disposed between adjacent ones of said layers and maintaining the layers of each insert in complete spaced relation with each other, a facing sheet applied to each end of the core and secured thereto, and said positioning means being in supporting relation with at least one transverse layer of said plurality of layers of thin sheet material and extending therefrom into supported relation with the facing sheet on each end of a core cell into which such insert is inserted.
Claim 2
Dependent Claim
137 words
An insulative honeycomb panel comprising a honeycomb core having a multiplicity of individual cells, a heat insulative insert comprising a plurality of layers of thin sheet material fitted into, and extending transversely across the interior of each of a selected plurality of the core cells intermediately of the ends of the core, positioning means including spacing means disposed between adjacent ones of said layers and maintaining the layers of each insert in complete spaced relation with each other, a facing sheet applied to each end of the core and secured thereto, and said positioning means being in supporting relation with at least one transverse layer of said plurality of layers of thin sheet material and extending therefrom into supported relation with the facing sheet on each end of a core cell into which such insert is inserted.
Claim 3
Dependent Claim
72 words
An insulative honeycomb panel as claimed in claim 1 wherein the positioning means comprises a wire extending through aligned holes provided one in each of the layers of thin sheet material inserted in each core cell, said wire being secured in positioning relation to each of said layers and extending endwise of the cell into supported engagement with both facing sheets to prevent endwise displacement of said layers of thin, sheet material.
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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) | 1977-04-08 | 1977-10-08 | 1978-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-08 | 1981-10-08 | 1982-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-08 | 1985-10-08 | 1986-04-09 | $7700.00 | Window Closed / Lapsed |