US4533583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal insulating mat
Assignee: Individual
•
Filing: 1984-03-19
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Granted: 1985-08-06
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Expires: 2004-03-19
Abstract
Abstract In order to fabricate and emplace a thermal insulating mat at favorable cost and in order to provide the mat with good thermal insulation properties at a favorable cost, the thermal insulating mat comprises films having sealed chambers which are filled with a filler gas, the thermal conduction coefficient of which is smaller than that of air.
Inventors
- 👤 Michael G. May
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:25
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/06; B; B32; B32B; B32B3/00; B32B3/10; B32B3/12; E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; E04B1/78; E04B2001/7691; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10T; Y10T428/00; Y10T428/23; Y10T428/231; Y10T428/234; Y10T428/236; Y10T428/239; Y10T428/24; Y10T428/24149; Y10T428/24628; Y10T428/24661; Y10T428/24802; Y10T428/24826
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
104 words
A thermal insulating mat comprising a plurality of sealed chambers filled with a filler gas having a heat conductivity lower than air, said sealed chambers being formed by spaced flexible film with at least two layers of separate chambers formed by separate continuous flexible films disposed one over the other with said separate continuous films having portions thereof that extend parallel with said spaced film and adjacent portions that extend perpendicular to said spaced film with said parallel portions secured in a gas-tight manner to at least one of said spaced film thereby forming a plurality of separate chambers between said spaced parallel film.
Claim 2
Dependent Claim
104 words
A thermal insulating mat comprising a plurality of sealed chambers filled with a filler gas having a heat conductivity lower than air, said sealed chambers being formed by spaced flexible film with at least two layers of separate chambers formed by separate continuous flexible films disposed one over the other with said separate continuous films having portions thereof that extend parallel with said spaced film and adjacent portions that extend perpendicular to said spaced film with said parallel portions secured in a gas-tight manner to at least one of said spaced film thereby forming a plurality of separate chambers between said spaced parallel film.
Claim 3
Dependent Claim
24 words
A thermal insulating mat as defined by claim 1, characterized in that the filler gas at least partially comprises carbon dioxide (CO 2 ).
Claim 4
Dependent Claim
20 words
A thermal insulating mat as defined in claim 1, characterized in that the filler gas comprises a single gaseous substance.
Claim 5
Dependent Claim
20 words
A thermal insulating mat as defined by claim 1, characterized in that the filler gas is free of noble gas.
Claim 6
Dependent Claim
22 words
A thermal insulating mat as defined by claim 1, characterized in that said thermal insulating mat comprises translucent films having good light-transmissivity.
Claim 7
Dependent Claim
27 words
A thermal insulating mat as defined by claim 1, characterized in that the chambers of one layer are disposed beside one another with no space between them.
Claim 8
Dependent Claim
25 words
A thermal insulating mat as defined by claim 1, characterized in that the chambers of one layer are disposed spaced apart laterally from one another.
Claim 9
Dependent Claim
48 words
A thermal insulating mat as defined by claim 7, characterized in that the interstices between the chambers are likewise filled with filler gas, the thermal conduction coefficient of which is smaller than that of air and which filler gas preferably corresponds to the filler gas filling the chambers.
Claim 10
Dependent Claim
19 words
A thermal insulating mat as defined by claim 1, characterized in that said thermal insulating mat comprises plastic film.
Claim 11
Dependent Claim
22 words
A thermal insulating mat as defined by claim 1, characterized in that the chamber has a volume of 1 cm 3 maximum.
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) | 1988-08-05 | 1989-02-04 | 1989-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-05 | 1993-02-04 | 1993-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-05 | 1997-02-04 | 1997-08-06 | $7700.00 | Window Closed / Lapsed |