Patent US4028859A successfully refreshed from Google Patents.
US4028859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-insulating panels
Assignee: Individual
•
Filing: 1976-05-06
•
Granted: 1977-06-14
•
Expires: 1996-05-06
Abstract
Abstract A heat-insulating panel, particularly adapted for walls of buildings, including two parallel thin ribbed metal sheets covering an intermediate layer, consisting of a heat-insulating resin, in which the said covering metal sheets show in positions corresponding to each other and at a regular distance undercut reliefs projecting on one face whereat there are inserted coupling organs of the said metal sheets, consisting of material having a low thermal conductivity, and on each projecting relief there are fixed movably fastening means to the support structures and the end portions of the two metal sheets are folded over and shaped so as to build a concave edge and a convex edge, which may be coupled by embedding with each other and provided on their inner surfaces with gaskets having a series of longitudinal lamellar reliefs, placed in intercalated positions.
Inventors
- 👤 Pietro Bellagamba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:27
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/26; E04C2/284; E04C2/292; B; B32; B32B; B32B3/00; B32B3/02; B32B3/06; B32B15/00; B32B15/04; E04C2/30; E04C2/34; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0801; E04F13/0803; E04F13/081; E04F13/0814; E04F13/12; B32B2307/00; B32B2307/30; B32B2307/304; B32B2419/00; B32B2607/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
137 words
A heat-insulating panel, particularly adapted for walls of buildings, including two parallel thin ribbed metal sheets covering an intermediate layer, consisting of a heat-insulating resin, in which the said covering metal sheets show in positions corresponding to each other and at a regular distance undercut reliefs projecting on one face whereat there are inserted coupling organs of the said metal sheets, consisting of material having a low thermal conductivity, and one each projecting relief there are fixed movably fastening means to the support structures and the end portions of the two metal sheets are folded over and shaped so as to build a concave edge and a convex edge, which may be coupled by embedding with each other and provided on their inner surfaces with gaskets having a series of longitudinal lamellar reliefs, placed in intercalated positions.
Claim 2
Dependent Claim
137 words
A heat-insulating panel, particularly adapted for walls of buildings, including two parallel thin ribbed metal sheets covering an intermediate layer, consisting of a heat-insulating resin, in which the said covering metal sheets show in positions corresponding to each other and at a regular distance undercut reliefs projecting on one face whereat there are inserted coupling organs of the said metal sheets, consisting of material having a low thermal conductivity, and one each projecting relief there are fixed movably fastening means to the support structures and the end portions of the two metal sheets are folded over and shaped so as to build a concave edge and a convex edge, which may be coupled by embedding with each other and provided on their inner surfaces with gaskets having a series of longitudinal lamellar reliefs, placed in intercalated positions.
Claim 3
Dependent Claim
59 words
A heat-insulating panel as defined in claim 1, in which the coupling organs of the two metal sheets are built by a V-shaped piece fitting by embedding into the cavity delimited by the projecting relief, and by a C-shaped piece placed in the cavity of the recessed relief and by a spacer member joining the said pieces each other.
Claim 4
Dependent Claim
35 words
A heat-insulating panel as defined in claim 1 in which the two V-shaped and C-shaped pieces and the spacer member building the coupling organ consist of a structural shape extending over the entire panel surface.
Claim 5
Dependent Claim
17 words
A heat-insulating panel as defined in claim 1, in which the coupling organs consist of plastic material.
Claim 6
Dependent Claim
93 words
A heat-insulating panel as defined in claim 1, in which the fastening means of the panel to the support structure include a small metal block having an undercut cavity coupling prismatically with the reliefs projecting from the panel, the said block being provided on its outer face with two vertical slides and with a screw pin being orthogonal to the said face, to which there is fastened by means of a nut a small bar embedding into the said vertical slides and getting grip with its free projecting portion to the support structure.
Claim 7
Dependent Claim
40 words
A heat-insulating panel as defined in claim 1, in which the gaskets are fastened to the internal surface of panel edges by means of the protuberances fitting by embedding into the cavities formed on the surface of the said edges.
References Cited (Backward Citations)
US2205725A
Cited
US2073130A
Cited
US3248836A
Cited
US3386218A
Cited
US3453795A
Cited
US3559358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-13 | 1980-12-13 | 1981-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-13 | 1984-12-13 | 1985-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-13 | 1988-12-13 | 1989-06-14 | $7700.00 | Window Closed / Lapsed |