US3848666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foamed metal bodies
Assignee: Ethyl Corp
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Filing: 1973-02-26
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Granted: 1974-11-19
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Expires: 1993-02-26
Abstract
Abstract A foamed metal panel has a tubular core embedded in it to conduct heating liquid or the like. The panel can also be reinforced with metal inserts such as blocks and plates at points of stress.
Inventors
- 👤 A Valdo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:37
CPC Classifications
F; F28; F28F; F28F3/00; F28F3/12; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/053; F28F13/00; F28F13/003; F28F21/00; F28F21/003; F28F2225/00; F28F2225/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
54 words
A rectangular structural panel of foamed aluminum having discrete cells therein, having a density less than about 50 pounds per cubic foot and having embedded therein a copper-base conduit for a heating liquid, the conduit having an inlet and an outlet end, both of said ends projecting out through one face of the panel.
Claim 2
Dependent Claim
54 words
A rectangular structural panel of foamed aluminum having discrete cells therein, having a density less than about 50 pounds per cubic foot and having embedded therein a copper-base conduit for a heating liquid, the conduit having an inlet and an outlet end, both of said ends projecting out through one face of the panel.
Claim 3
Dependent Claim
28 words
The combination of claim 1 in which the panel is not more than about 1 inch thick and the conduit is in the form of a single layer.
Claim 4
Dependent Claim
73 words
A rectangular structural panel of heat conducting foamed aluminum having discrete cells therein and having embedded therein a copper-base conduit for a heating liquid, the conduit having an inlet and an outlet end, both of said ends projecting out through one face of the panel, and reinforcing blocks or plates embedded in the foamed metal at desired stress locations for strengthening the panel or facilitating the joining of one panel to another panel.
Claim 5
Dependent Claim
73 words
A rectangular structural panel of heat conducting foamed aluminum having discrete cells therein and having embedded therein a copper-base conduit for a heating liquid, the conduit having an inlet and an outlet end, both of said ends projecting out through one face of the panel, and reinforcing blocks or plates embedded in the foamed metal at desired stress locations for strengthening the panel or facilitating the joining of one panel to another panel.
Claim 6
Dependent Claim
25 words
The panel of claim 3, wherein said reinforcing blocks or plates extend to the surface of the panel for receiving fasteners or other desired hardware.
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) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |