US3640832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-insulating material
Assignee: Verolme Vacuumtechnik AG
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Filing: 1969-02-06
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Granted: 1972-02-08
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Expires: 1989-02-06
Abstract
Abstract A carrier sheet of heat-resisting plastics material is permanently secured to a heat-insulating backing. A vapordeposited, reflecting metal layer is carried by said carrier sheet on the side thereof which is remote from said backing. A wear-resisting coating, which is permeable to radiant heat, covers said metal layer on the side thereof which is remote from said carrier sheet.
Inventors
- 👤 Otmar J G Kurz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:56
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; A; A41; A41D; A41D31/00; A41D31/04; A41D31/06; A41D31/065; G; G21; G21F; G21F1/00; G21F1/02; G21F1/10; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/24999; Y10T428/249991; Y10T428/249992; Y10T428/25; Y10T428/256; Y10T428/26; Y10T428/261; Y10T428/31504; Y10T428/31678; Y10T428/31681; Y10T428/31786
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
21 words
A heat-insulating material as set forth in claim 1, in which said backing, carrier sheet, metal layer and coating are flexible.
Claim 2
Dependent Claim
29 words
A heat-insulating material as set forth in claim 1, in which said metal layer consists of a metal selected from the class consisting of aluminum, copper, silver, and tin.
Claim 3
Dependent Claim
33 words
A heat-insulating material as set forth in claim 1, in which said carrier sheet consists of a material selected from the class consisting of polyphthalic ester, polyethylene, polypropylene, polystyrene, polyvinylchloride, and polyvinyl acetate.
Claim 4
Dependent Claim
24 words
A heat-insulating material as set forth in claim 1, in which the thickness of the coating is smaller than that of the carrier sheet.
Claim 5
Dependent Claim
37 words
A heat-insulating material as set forth in claim 1, in which said metal layer has a thickness below 100 Angstroms and is partly permeable to radiant heat and adapted to partly reflect and partly absorb radiant heat.
Claim 6
Dependent Claim
17 words
A heat-insulating material as set forth in claim 1, in which said metal layer consists of aluminum.
Claim 7
Dependent Claim
26 words
A heat-insulating material as set forth in claim 1, in which said carrier sheet consists of heat-resisting polyphthalic ester and has a thickness of 10-20 microns.
Claim 8
Dependent Claim
32 words
A heat-insulating material as set forth in claim 1, in which said coating consists of a polyester which is permeable to radiant heat having a wavelength of 3-15 microns substantially without absorption.
Claim 9
Dependent Claim
19 words
A heat-insulating material as set forth in claim 1, in which said carrier sheet is laminated to said backing.
Claim 10
Dependent Claim
19 words
A heat-insulating material as set forth in claim 1, in which said carrier sheet is adhered to said backing.
Claim 11
Dependent Claim
18 words
A heat-insulating material as set forth in claim 1, in which said backing consists of foamed plastics material.
Claim 12
Dependent Claim
19 words
A heat-insulating material as set forth in claim 12, in which said backing has the form of a web.
Claim 13
Dependent Claim
19 words
A heat-insulating material as set forth in claim 12, in which said backing has the form of a slab.
Claim 14
Dependent Claim
21 words
A heat-insulating material as set forth in claim 12, in which said foamed plastics material consists of a compacted polyurethane foam.
Claim 15
Dependent Claim
19 words
A heat-insulating material as set forth in claim 1, in which said coating has a thickness of 1-5 microns.
Claim 16
Dependent Claim
83 words
A heat-insulating material, consisting essentially of a backing consisting of a web of compacted foamed plastics material, a carrier sheet of heat-resisting material laminated to said backing, a heat-reflecting aluminum layer, 30 to 400 Angstroms thick, which is carried by said carrier sheet on the side thereof which is remote from said backing, and a wear-resisting coating of a polyester which is permeable to radiant heat, said coating covering said aluminum layer on the side thereof which is remote from said carrier sheet.
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) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |