US4174994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for metal coatings
Assignee: Individual
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Filing: 1978-03-30
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Granted: 1979-11-20
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Expires: 1998-03-30
Abstract
Abstract An apparatus for use in a process of continuously coating a metal substrate with an organic polymer composition by providing a polymer stratum including a melt bonding composition in contacting relation with said metal substrate, heating said substrate by means of electromagnetic radiation capable of heating said substrate, and subsequently cooling said metal substrate so as to form a strong interbonding connection between said melt bonding composition and said metal substrate, wherein said apparatus comprises a first means for generating electromagnetic radiation having a frequency in the radio frequency range and a second means for emitting said radiation and in operative connection with said first means. The second means comprises an inductor loop for directing said radiation through said polymer stratum onto said metal substrate, and said inductor loop is shaped to substantially conform with a linear extension of said metal substrate.
Inventors
- 👤 Leonardus J. Savelkouls
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:31
CPC Classifications
B; B32; B32B; B32B37/00; B32B37/14; B32B37/24; B29; B29C; B29C63/00; B29C63/0004; B29C63/0065; B29C63/0069; B29C63/02; B29C63/04; B29C63/08; B29C63/10; B29C65/00; B29C65/02; B29C65/44; B29C65/46; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/45; B29C66/70; B29C66/74; B29C66/742; B29C66/80; B29C66/81; B29C66/816; B29C66/8161; B29C66/818; B29C66/8181; B29C66/81811; B29C66/82; B29C66/822; B29C66/8221; B29C66/824; B29C66/8242; B29C66/8248; B29C66/83; B29C66/836; B29C66/8362; B32B15/00; B32B15/04; B32B15/08; B32B38/00; B32B38/0008; B29C35/00; B29C35/02; B29C35/08; B29C66/71; B29C66/90; B29C66/93; B29C66/934; B29C66/939; B29K; B29K2705/00; B29K2705/08; B29K2995/00; B29K2995/0003; B29K2995/0008; B29L; B29L2009/00; B29L2009/003; B32B2037/243; B32B2255/00; B32B2255/06; B32B2255/26; B32B2307/00; B32B2307/70; B32B2307/714; B32B2310/00; B32B2310/08; B32B2310/0806
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
156 words
An apparatus for use in a process of continuously coating a metal substrate with an organic polymer composition by providing a polymer stratum including a melt bonding composition in a contacting relation with said metal substrate, heating said substrate by means of electromagnetic radiation capable of heating said substrate, and subsequently cooling said metal substrate so as to form a strong interbonding connection between said melt bonding composition and said metal substrate; said apparatus comprising a first means for generating electromagnetic radiation having a frequency in the radio frequency range and a second means for emitting said radiation and in operative connection with said first means; said second means comprising a flexibly-deformable inductor loop for directing said radiation through said polymer stratum onto said metal substrate; and means for deformably pressing said inductor loop onto said polymer stratum to substantially conform said inductor loop and said polymer stratum with a non-planar portion of said metal substrate.
Claim 2
Independent Claim
156 words
An apparatus for use in a process of continuously coating a metal substrate with an organic polymer composition by providing a polymer stratum including a melt bonding composition in a contacting relation with said metal substrate, heating said substrate by means of electromagnetic radiation capable of heating said substrate, and subsequently cooling said metal substrate so as to form a strong interbonding connection between said melt bonding composition and said metal substrate; said apparatus comprising a first means for generating electromagnetic radiation having a frequency in the radio frequency range and a second means for emitting said radiation and in operative connection with said first means; said second means comprising a flexibly-deformable inductor loop for directing said radiation through said polymer stratum onto said metal substrate; and means for deformably pressing said inductor loop onto said polymer stratum to substantially conform said inductor loop and said polymer stratum with a non-planar portion of said metal substrate.
Claim 3
Dependent Claim
43 words
The apparatus of claim 1, wherein said flexibly-deformable inductor loop comprises a flexible metallic conductor portion combined with a flexible non-metallic liquid-impervious tube means; and a channel means extending within said tube means for continuously passing a cooling fluid through said channel means.
Claim 4
Dependent Claim
40 words
The apparatus of claim 2, wherein said flexible metallic conductor is made of a plurality of wires and wherein said tube means is a tube made of a flexible polymer; said channel means extending between said conductor and said tube.
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) | 1982-11-19 | 1983-05-21 | 1983-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-19 | 1987-05-21 | 1987-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-19 | 1991-05-21 | 1991-11-20 | $7700.00 | Window Closed / Lapsed |