US3619340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multilayered thermal insulation material
Assignee: Individual
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Filing: 1969-01-21
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Granted: 1971-11-09
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Expires: 1989-01-21
Abstract
Abstract This invention relates to improvements in multilayered thermal insulation employing heat reflectivity in multiple layers of flexible, embossed, reflective material or of reflectively coated materials which are themselves heat insulators. The several layers are arranged in series and are embossed to define spaced, substantially dead, air cells. The walls of successive layers of cells are offset one from the other whereby compressive strength of the structure is maintained while providing substantial flexibility.
Inventors
- 👤 Peter Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:42
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; E04B1/78; E04B1/80; E04B1/806; B; B32; B32B; B32B27/00; B32B27/06; B32B3/00; B32B3/26; B32B3/28; E04C; E04C2/00; E04C2/30; E04C2/34; E04C2/3405; B32B2307/00; B32B2307/30; B32B2307/304; B32B2309/00; B32B2309/08; B32B2309/10; B32B2309/105; E04B2001/7691; E04C2002/3444; E04C2002/345; E04C2002/3472; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T428/24479; Y10T428/24521; Y10T428/24545; Y10T428/24562; Y10T428/24802; Y10T428/24851; Y10T428/24917
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
44 words
The invention defined in claim 1, in which the pockets into which one of said overlying sheets is divided have a dimension, in the plane of said layers, different from that of the pockets into which the other of said overlying layers is divided.
Claim 2
Dependent Claim
55 words
The invention defined in claim 1, in which the separating walls of each overlying layer have uniform height, and which further comprises two additional layers of sheet material each having a reflective surface and disposed over and connected to respectively associated one of said overlying layers such that said reflective surfaces face toward one another.
Claim 3
Dependent Claim
66 words
The invention defined in claim 1, in which the separating walls are joined to form a ridge and have reduced height at points along said ridge without perforation affording communication for migration of gas from each pocket of at least one of said overlying layers to substantially every other pocket of said overlying layer without affording communication between said pockets and the space between said walls.
Claim 4
Dependent Claim
50 words
The invention defined in claim 1, in which at least one of said overlying layers comprises a sheet of metal embossed to form a lattice of bosses of selected geometrical pattern divided by V-shaped walls and in which said intervening layer is formed by the bosses of said embossed layer.
Claim 5
Dependent Claim
75 words
The invention defined in claim 5, in which the other of said overlying layers is similarly embossed with a different geometrical pattern, the layers being assembled back to back whereby the bosses of the overlying layers together form said intervening layer; and which further comprises two covering shEets each overlying and fixed to a respectively associated side of the assembly of overlying layers and each having a reflective surface on the side facing said assembly.
Claim 6
Dependent Claim
39 words
The invention defined in claim 1, in which two layers of said multilayered insulation material are arranged one against the other with an overlying layer of one bonded back to back directly with an overlying layer of the other.
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) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |