US4045931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating flexible composite element
Assignee: Individual
•
Filing: 1975-11-03
•
Granted: 1977-09-06
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Expires: 1995-11-03
Abstract
Abstract An improved heat and cold insulating flexible composite element comprises at least one radiation chamber with walls of flexible material having reflecting surfaces. Opposite walls of said chamber are resiliently spaced from each other by suitable spacing elements.Preferably the chambers are enclosed by an envelope which may also be formed of flexible reflecting sheets.
Inventors
- 👤 Otto Alfred Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:08
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/08; A; A41; A41D; A41D31/00; A41D31/04; A41D31/06; A41D31/065; E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; E04B1/78; E04C; E04C2/00; E04C2/30; E04C2/34; E04C2/36; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0869; F16L59/06; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
130 words
An insulating flexible composite element comprising a. a pair of spaced sheets of flexible material, at least the interior surfaces of which are reflecting thereby to form a radiation chamber, b. a flexible spacing element positioned in said chamber, said element serving to space apart said sheets of flexible material and being formed so as to provide a plurality of separate radiation chambers, c. supporting means of net-like material positioned on either side of said flexible spacing element and serving to prevent penetration of said spaced sheets into said separate chambers of said flexible spacing element, and, d. means for tensioning at least said flexible spacing element and said supporting means for maintaining these members in their assembled positioned thereby to preserve said radiation chambers in said flexible spacing element.
Claim 2
Dependent Claim
130 words
An insulating flexible composite element comprising a. a pair of spaced sheets of flexible material, at least the interior surfaces of which are reflecting thereby to form a radiation chamber, b. a flexible spacing element positioned in said chamber, said element serving to space apart said sheets of flexible material and being formed so as to provide a plurality of separate radiation chambers, c. supporting means of net-like material positioned on either side of said flexible spacing element and serving to prevent penetration of said spaced sheets into said separate chambers of said flexible spacing element, and, d. means for tensioning at least said flexible spacing element and said supporting means for maintaining these members in their assembled positioned thereby to preserve said radiation chambers in said flexible spacing element.
Claim 3
Dependent Claim
29 words
The insulating flexible composite element of claim 1 in which said supporting means are of a smaller mesh than said flexible spacing element formed with said separate radiation chambers.
Claim 4
Dependent Claim
29 words
The insulating flexible composite element of claim 1 in which said tensioning means comprise rubber bands extending through loops attached to said flexible spacing element and said supporting means.
References Cited (Backward Citations)
US1708351A
Cited
US2175630A
Cited
US2172048A
Cited
US2223145A
Cited
US2805739A
Cited
BE529862A
Cited
US3165791A
Cited
US3649430A
Cited
US3448551A
Cited
US3540615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-05 | 1981-03-07 | 1981-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-05 | 1985-03-07 | 1985-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-05 | 1989-03-07 | 1989-09-06 | $7700.00 | Window Closed / Lapsed |