Patent US2788053A successfully refreshed from Google Patents.
US2788053A
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Thermal insulating structures and methods for the production thereof
Assignee: J W ROBERTS Ltd
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Filing: 1954-05-13
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Granted: 1957-04-09
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Expires: 1974-05-13
Abstract
No abstract record available.
Inventors
- 👤 Dolbey Norman Louis
- 👤 Frank C Hooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:30
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F01D5/187; B; B64; B64C; B64C1/00; B64C1/40; E; E04; E04B; E04B1/00; E04B1/62; E04B1/64; E04B1/644; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/24; E04C2/243; F01D5/02; F01D5/08; F01D5/081; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
53 words
IN THE PRODUCTION OF AN INSULATING STRUCTURE, THE METHOD WHICH COMPRISES APPLYING AN IMPERMEABLE MATERIAL TO THE FACE OF FIBROUS INSULATION TO FORM A VAPOUR BARRIER, COVERIG THE IMPERMEABLE MATERIAL WITH A FIBROUS LAYER, AND PUSHING FIBERS FROM THIS LAYER THROUGH THE IMPERMEABLE MATERIAL INTO CONTACT WITH THE FIBROUS INSULATION TO FORM WICKS.
Claim 2
Dependent Claim
53 words
IN THE PRODUCTION OF AN INSULATING STRUCTURE, THE METHOD WHICH COMPRISES APPLYING AN IMPERMEABLE MATERIAL TO THE FACE OF FIBROUS INSULATION TO FORM A VAPOUR BARRIER, COVERIG THE IMPERMEABLE MATERIAL WITH A FIBROUS LAYER, AND PUSHING FIBERS FROM THIS LAYER THROUGH THE IMPERMEABLE MATERIAL INTO CONTACT WITH THE FIBROUS INSULATION TO FORM WICKS.
Claim 3
Dependent Claim
61 words
A METHOD ACCORDING TO CLAIM 14 IN WHICH THE IMPERMEABLE MATERIAL IS BITUMINOUS AND IS APPLIED AS TWO LAYERS, THE FIRS LAYER IS ALLOWED TO FORM A SKIN BEFORE THE SECOND IS APPLIED, FIBRE IS SPRAYED ONTO THE SECOND LAYER WHILE IT IS STILL STICKY, AND THE WICKS ARE THEN FORMED BY PUSHING SOME OF THE SPRAYED FIBRE THROUGH BOTH LAYERS.
References Cited (Backward Citations)
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Cited
US1955443A
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US2030668A
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US2140689A
Cited
US2515847A
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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) | 1960-04-08 | 1960-10-08 | 1961-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-08 | 1964-10-08 | 1965-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-08 | 1968-10-08 | 1969-04-09 | $7700.00 | Window Closed / Lapsed |