Patent USRE25230E successfully refreshed from Google Patents.
Patent US3028278A successfully refreshed from Google Patents.
US3028278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal insulation
Assignee: Babcock and Wilcox Co
•
Filing: 1958-05-28
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Granted: 1962-04-03
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Expires: 1978-05-28
Abstract
No abstract record available.
Inventors
- 👤 George E Gronemeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:24
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/06; E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; E04B1/78; E04B1/80; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/234; Y10T428/24; Y10T428/24008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN A WEATHERPROOF REFLECTIVE METAL INSULATION STRUCTURE, A PANEL FRAME OF RELATIVELY THIN HEAT CONDUCTIVE METAL PROVIDING UPSTANDING SIDE AND END WALLS IN SPACED PARALLELISM, SAID SIDE AND END WALLS HAVING EACH A TOP HORIZONTALLY DIRECTED FLANGE PROJECTING INWARDLY FROM THE UPPER EDGES THEREOF AND AT SUBSTANTIALLY RIGHT ANGLES THERETO, A PLURALITY OF SHEETS OF HEAT REFLECTIVE METAL DISPOSED WITHIN SAID PANEL FRAME IN SPACED PARALLELISM WITH ONE ANOTHER AND TO SAID TOP FLANGES TO PROVIDE DEAD AIR SPACES BETWEEN THEM, MEANS AT THE MARGINAL EDGES AND INDEPENDENT OF AND SPACED FROM SAID FRAME TO SPACE AND SUPPORT THE ENDS OF SAID SHEETS IN LINE CONTACT, A COVER PLATE OVERLYING SAID FRAME AND SAID SHEETS, BEADS PROJECTING OUTWARDLY FROM SAID FLANGES TO ENGAGE SAID COVER PLATE IN LINE CONTACT, AND MEANS FOR SECURING SAID COVER PLATE, FRAME, REFLECTIVE METAL SHEETS AND SPACER MEMBERS IN ASSEMBLED RELATIONSHIP.
Claim 2
Dependent Claim
146 words
IN A WEATHERPROOF REFLECTIVE METAL INSULATION STRUCTURE, A PANEL FRAME OF RELATIVELY THIN HEAT CONDUCTIVE METAL PROVIDING UPSTANDING SIDE AND END WALLS IN SPACED PARALLELISM, SAID SIDE AND END WALLS HAVING EACH A TOP HORIZONTALLY DIRECTED FLANGE PROJECTING INWARDLY FROM THE UPPER EDGES THEREOF AND AT SUBSTANTIALLY RIGHT ANGLES THERETO, A PLURALITY OF SHEETS OF HEAT REFLECTIVE METAL DISPOSED WITHIN SAID PANEL FRAME IN SPACED PARALLELISM WITH ONE ANOTHER AND TO SAID TOP FLANGES TO PROVIDE DEAD AIR SPACES BETWEEN THEM, MEANS AT THE MARGINAL EDGES AND INDEPENDENT OF AND SPACED FROM SAID FRAME TO SPACE AND SUPPORT THE ENDS OF SAID SHEETS IN LINE CONTACT, A COVER PLATE OVERLYING SAID FRAME AND SAID SHEETS, BEADS PROJECTING OUTWARDLY FROM SAID FLANGES TO ENGAGE SAID COVER PLATE IN LINE CONTACT, AND MEANS FOR SECURING SAID COVER PLATE, FRAME, REFLECTIVE METAL SHEETS AND SPACER MEMBERS IN ASSEMBLED RELATIONSHIP.
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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) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |