IP Library Granted Patent US 10,068,683
Granted Patent B1
US 10,068,683 · App. 14/731,454 · Granted Sep 4, 2018

Rare earth materials as coating compositions for conductors

Inventor: Bobby G. Watkins, II (Columbia, SC)
Assignee: Southwire Company, LLC
H01B7/28C23C24/04H01B1/023H01B3/105
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Quick Facts
Patent No.
US 10,068,683
App. No.
14/731,454
Granted
Sep 4, 2018
Kind
B1
Abstract

A conductor includes a core with at least one conductive filament, and a coating deposited on a surface of the core. The coating is made of a rare earth material that includes at least one rare earth element selected from the group consisting of Lanthanum (La), Cerium (Ce), Praseodymium (Pr), Neodymium (Nd), Promethium (Pm), Samarium (Sm), Europium (Eu), Gadolinium (Gd), Terbium (Tb), Dysprosium (Dy), Holmium (Ho), Erbium (Er), Thulium (Tm), Ytterbium (Yb), Lutetium (Lu), Scandium (Sc) and Yttrium (Yt).

Claims (20)

1. A conductor comprising:

a core comprising a plurality of conductive filaments bundled along a central axis of the core; and

a coating deposited on a surface of the core, the coating comprising a rare earth material that includes at least one rare earth element selected from the group consisting of Lanthanum (La), Cerium (Ce), Praseodymium (Pr), Neodymium (Nd), Promethium (Pm), Samarium (Sm), Europium (Eu), Gadolinium (Gd), Terbium (Tb), Dysprosium (Dy), Holmium (Ho), Erbium (Er), Thulium (Tm), Ytterbium (Yb), Lutetium (Lu), Scandium (Sc) and Yttrium (Yt);

wherein the rare earth material further comprises an additive that facilitates cohesion of the rare earth material coated on the surface of the core, and the rare earth material coating has a thickness of at least 20 mil.

2. The conductor of claim 1 , wherein the rare earth material includes at least one rare earth element selected from the group consisting of La, Ce, Gd, Er and Tm.

3. The conductor of claim 1 , wherein the rare earth material comprises at least one rare earth element in elemental form.

4. The conductor of claim 1 , wherein the rare earth material comprises at least one rare earth oxide.

5. The conductor of claim 4 , wherein the at least one rare earth oxide comprises at least one of La 2 O 3 , CeO 2 , Gd 2 O 3 , Er 2 O 3 and Tm 2 O 3 .

6. The conductor of claim 1 , wherein the additive is less than 50% by volume of the rare earth material.

7. The conductor of claim 6 , wherein the additive comprises aluminum or zinc.

8. The conductor of claim 1 , wherein the rare earth material coating has a thickness of at least 30 mil.

9. The conductor of claim 1 , wherein the conductor comprises an overhead conductor.

10. The conductor of claim 9 , wherein the conductor comprises an aluminum conductor steel supported (ACSS) cable.

11. A conductor comprising:

a core comprising a plurality of conductive filaments bundled along a central axis of the core; and

a coating deposited on a surface of the core, the coating comprising a rare earth material that includes at least one rare earth element selected from the group consisting of Lanthanum (La), Neodymium (Nd), Promethium (Pm), Samarium (Sm), Europium (Eu), Gadolinium (Gd), Dysprosium (Dy), Holmium (Ho), Erbium (Er), Thulium (Tm), Ytterbium (Yb), Lutetium (Lu), Scandium (Sc) and Yttrium (Yt).

12. A conductor comprising:

a core comprising a plurality of conductive filaments bundled along a central axis of the core; and

a coating deposited on a surface of the core, the coating comprising a rare earth material that includes at least one rare earth element selected from the group consisting of Lanthanum (La), Cerium (Ce), Praseodymium (Pr), Neodymium (Nd), Promethium (Pm), Samarium (Sm), Europium (Eu), Gadolinium (Gd), Terbium (Tb), Dysprosium (Dy), Holmium (Ho), Erbium (Er), Thulium (Tm), Ytterbium (Yb), Lutetium (Lu), Scandium (Sc) and Yttrium (Yt);

wherein the rare earth material further comprises an additive that facilitates cohesion of the rare earth material coated on the surface of the core, and the additive comprises aluminum or zinc.

Assignments (5)
RELEASE OF SECURITY INTEREST Recorded Jul 31, 2025
From: WELLS FARGO BANK, NATIONAL ASSOCIATION
To: SOUTHWIRE COMPANY, LLC; COLEMAN CABLE, LLC; TECHNOLOGY RESEARCH, LLC; SUMNER MANUFACTURING COMPANY, LLC; MADISON ELECTRIC PRODUCTS, LLC; NOVINIUM, LLC; NOVINIUM HOLDINGS, INC.; WATTEREDGE, LLC; TAPPAN WIRE & CABLE, LLC; UNITED COPPER INDUSTRIES, LLC; TOPAZ LIGHTING COMPANY LLC; OBI PARTNERS, LLC; WIIP, INC.
Reel/Frame 072299/0141 →
TERMINATION AND RELEASE OF INTELLECTUAL PROPERTY SECURITY AGREEMENTS Recorded Oct 23, 2024
From: BANK OF AMERICA, N.A., AS AGENT
To: SOUTHWIRE COMPANY, LLC; COLEMAN CABLE, LLC (F/K/A COLEMAN CABLE, INC.); TECHNOLOGY RESEARCH, LLC (F/K/A TECHNOLOGY RESEARCH CORPORATION); SUMNER MANUFACTURING COMPANY, LLC; MADISON ELECTRIC PRODUCTS, LLC; NOVINIUM, LLC; WATTEREDGE, LLC; TAPPAN WIRE & CABLE, LLC; UNITED COPPER INDUSTRIES, LLC; TOPAZ LIGHTING COMPANY LLC; OBI PARTNERS, LLC; WIIP, INC.
Reel/Frame 069235/0104 →
SECURITY INTEREST Recorded Jun 19, 2019
From: SOUTHWIRE COMPANY, LLC; SUMNER MANUFACTURING COMPANY, LLC; COLEMAN CABLE, LLC; TECHNOLOGY RESEARCH, LLC
To: BANK OF AMERICA, N.A.
Reel/Frame 049522/0643 →
SECURITY INTEREST Recorded Jun 19, 2019
From: SOUTHWIRE COMPANY, LLC; COLEMAN CABLE, LLC; TECHNOLOGY RESEARCH, LLC; SUMNER MANUFACTURING COMPANY, LLC
To: WELLS FARGO BANK
Reel/Frame 049522/0836 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 6, 2018
From: WATKINS, II, BOBBY G.
To: SOUTHWIRE COMPANY, LLC
Reel/Frame 046562/0504 →
Continuity (1)
Provisional Application 62008872 · Jun 6, 2014