US5122507A — Process for manufacturing a superconducting compo…

Claim 1

Independent Claim 59 words

A composite comprising an outer metal pipe and a superconducting portion including a high Tc superconductor of compound oxide, said outer metal pipe surrounding said superconducting portion, characterized in that said outer metal pipe is made of at least one of metals selected from a group consisting of Ag, Au, Pd, Pt, Rh, Ir, Ru, Os and their alloys.

Claim 2

Dependent Claim 59 words

A composite comprising an outer metal pipe and a superconducting portion including a high Tc superconductor of compound oxide, said outer metal pipe surrounding said superconducting portion, characterized in that said outer metal pipe is made of at least one of metals selected from a group consisting of Ag, Au, Pd, Pt, Rh, Ir, Ru, Os and their alloys.

Claim 3

Dependent Claim 29 words

A composite set forth in claim 1, charcterized in that said compound oxide superconductor is in a form of a sintered solid mass compacted in said outer metal pipe.

Claim 4

Dependent Claim 22 words

A composite set forth in claim 1, characterized in that a plurality of metal wires are embedded in said compound oxide superconductor.

Claim 5

Dependent Claim 81 words

A composite comprising a high Tc superconductor of compound oxide and an outer metal pipe which surrounds said superconductor, characterized in that said outer metal pipe is made of at least one of metals selected from a group consisting of Ag, Au, Pd, Pt, Rh, Ir, Ru, Os and their alloys further characterized in that said outer metal pipe is perforated so that a part of the compound oxide superconductor supported by the outer metal pipe is opened to surrounding atmosphere.

Claim 6

Dependent Claim 81 words

A composite comprising a high Tc superconductor of compound oxide and an outer metal pipe which surrounds said superconductor, characterized in that said outer metal pipe is made of at least one of metals selected from a group consisting of Ag, Au, Pd, Pt, Rh, Ir, Ru, Os and their alloys further characterized in that said outer metal pipe is perforated so that a part of the compound oxide superconductor supported by the outer metal pipe is opened to surrounding atmosphere.

Claim 7

Dependent Claim 19 words

A composite set forth in claim 4, characterized in that said outer metal pipe is a cylindrical wire netting.

Claim 8

Dependent Claim 31 words

A composite set forth in claim 1, characterized in that said inner surface of said outer metal pipe has a layer resisting against oxidation which is inactive to the compound oxide.

Claim 9

Dependent Claim 30 words

A composite set forth in claim 6, characterized in that said oxidation resisting layer is composed of an oxide of a material of which said outer metal layer is made.

Claim 10

Dependent Claim 44 words

A composite set forth in claim 1, characterized in that said compound oxide superconductor is in a form of a layer deposited on the inner surface of an outer metal pipe to provide an axial hollow interior passage being formed in the metal pipe.

Claim 11

Dependent Claim 20 words

A composite set forth in claim 8, characterized in that said outer metal pipe is closed at opposite ends thereof.

Claim 12

Dependent Claim 26 words

A composite set forth in claim 8, characterized in that the axial hollow interior passage in said outer metal pipe is filled with an inert gas.

Claim 13

Dependent Claim 23 words

A composite set forth in claim 8, characterized in that a coolant is circulated through an interior of said axial hollow interior passage.

Claim 14

Dependent Claim 59 words

A composite set forth in claim 1, characterized in that said compound oxide is a compound oxide including an element α selected from IIa group of the Periodic Table, an element β selected from IIIa group of the Periodic Table and an element γ selected from a group comprising Ia, IIb, IIIb and VIII group of the Periodic Table.

Claim 15

Dependent Claim 18 words

A composite set forth in claim 12, characterized in that said compound oxide is of quasi-perovskite type oxide.

Claim 16

Dependent Claim 26 words

A composite set forth in claim 12, characterized in that said element α is Ba, said element β is Y and said element γ is Cu.

Claim 17

Dependent Claim 26 words

A composite set forth in claim 12, characterized in that said element α is Ba, said element β is La and said element γ is Cu.

Claim 18

Dependent Claim 26 words

A composite set forth in claim 12, characterized in that said element α is Sr, said element β is La and said element γ is Cu.

Claim 19

Dependent Claim 63 words

A composite set forth in claim 1, characterized in that said compound oxide is a compound oxide including at least two elements α1 and α2 selected from IIa group of the Periodic Table, an element δ selected from Va group of the Periodic Table and an element γ selected from a group comprising Ia, IIb, IIIb and VIII group of the Periodic Table.

Claim 20

Dependent Claim 30 words

A composite set forth in claim 17, characterized in that said element α1 and α2 is Sr and Ca, said element δ is Bi and said element γ is Cu.

Claim 21

Dependent Claim 63 words

A composite set forth in claim 1, characterized in that said compound oxide is a compound oxide including at least two elements α1 and α2 selected from IIa group of the Periodic Table, an element ε selected from IIIa group of the Periodic Table and an element γ selected from a group comprising Ia, IIb, IIIb and VIII group of the Periodic Table.

Claim 22

Dependent Claim 30 words

A composite set forth in claim 19, characterized in that said element α1 and α2 is Ba and Ca, said element δ is Tl and said element γ is Cu.

Claim 23

Dependent Claim 168 words

A composite comprising a high Tc superconductor of compound oxide and an outer metal pipe which surrounds said superconductor, characterized in that said outer metal pipe is made of at least one of metals selected from a group consisting of Ag, Au, Pd, Pt, Rh, Ir, Ru, Os and their alloys wherein said compound oxide is represented by the general formula: (α1-xβx)γyOz in which α stands for an element selected from IIa group of the Periodic Table, β stands for an element selected from IIIa group of the Periodic Table and γ stands for an element selected from a group comprising Ia, IIb, IIIb and VIII group of the Periodic Table, and a small letter of "x" represents an atomic ratio of β and is a number which satisfies a range of 0.1≦x≦0.9 with respect to the total of (α+β) which is equal to 1, small letters of "y" and "z" represent atomic ratios of γ and oxygen (O) respectively and satisfy ranges of 1.0≦y≦4.0 and 1≦z≦5 respectively.

Claim 24

Dependent Claim 168 words

A composite comprising a high Tc superconductor of compound oxide and an outer metal pipe which surrounds said superconductor, characterized in that said outer metal pipe is made of at least one of metals selected from a group consisting of Ag, Au, Pd, Pt, Rh, Ir, Ru, Os and their alloys wherein said compound oxide is represented by the general formula: (α1-xβx)γyOz in which α stands for an element selected from IIa group of the Periodic Table, β stands for an element selected from IIIa group of the Periodic Table and γ stands for an element selected from a group comprising Ia, IIb, IIIb and VIII group of the Periodic Table, and a small letter of "x" represents an atomic ratio of β and is a number which satisfies a range of 0.1≦x≦0.9 with respect to the total of (α+β) which is equal to 1, small letters of "y" and "z" represent atomic ratios of γ and oxygen (O) respectively and satisfy ranges of 1.0≦y≦4.0 and 1≦z≦5 respectively.

Claim 25

Dependent Claim 18 words

A composite set forth in claim 1, characterized in that said outer metal pipe directly contacts said superconductor.

Claim 26

Dependent Claim 30 words

A composite set forth in claim 2, characterized in that said sintered solid mass forms a core within said outer metal pipe and said core consists of said compound oxide.

Claim 27

Dependent Claim 18 words

A composite set forth in claim 1, characterized in that said superconducting portion consists of said compound oxide.

Claim 28

Dependent Claim 47 words

A composite set forth in claim 1, characterized in that said compound oxide is selected from the group consisting of YBCO and La-Sr-Cu-O and said outer metal pipe is made of at least one metal selected from a group consisting of Ag, Pt, Cu, and their alloys.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1995-06-16	1995-12-16	1996-06-16	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1999-06-16	1999-12-16	2000-06-16	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2003-06-16	2003-12-16	2004-06-16	$7700.00	Window Closed / Lapsed

Process for manufacturing a superconducting composite

Abstract

Inventors

Bibliographic Details

Claims Analysis

References Cited (Backward Citations)

USPTO Annuity & Maintenance Windows

Assigned Categories & Tags

Assign Category Tag