US4547277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxygen separator
Assignee: Individual
•
Filing: 1984-07-12
•
Granted: 1985-10-15
•
Expires: 2004-07-12
Abstract
Abstract Oxygen ion conducting ceramic materials are disclosed, represented by the formulas Ni(Nb.sub.1-x M.sub.x).sub.2 O.sub.6-x and Ni.sub.2 (Nb.sub.1-x M x ) 2 O 7-x , wherein M is selected from the group consisting of Zr +4 , Ti +4 , Sn +4 , Sm +4 , Hf +4 and Ce +4 and x is a value from 0 to 0.2. These materials, along with Bi 2 O 3 in solid solution with Y 2 O 3 or Nb 2 O 5 , may be used in an oxygen separator for removing oxygen from a first gas to a second gas or vacuum. The oxygen separator includes at least one layer of the ceramic material with layers of a porous metallic conductor arranged on either side to form a body. An electrode connects one layer, and a second electrode connects the opposite metallic layer. A voltage signal is applied across the electrodes, whereupon oxygen ions diffuse through the ceramic layer.
Inventors
- 👤 William N. Lawless
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:12
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/403; G01N27/406; G01N27/407; G01N27/4073; C; C01; C01B; C01B13/00; C01B13/02; C01B13/0229; C01B13/0248; C01B13/0251; C01B13/0255; H; H01; H01M; H01M8/00; H01M8/10; H01M8/12; H01M8/1231; H01M8/124; H01M8/1246; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
107 words
An oxygen separator for separating oxygen from a first gas, comprising: at least two layers of a porous metallic conductor; at least one layer of an electrolytic ceramic material Ni(Nb 1-x M x ) 2 O 6-x wherein M is selected from the group consising of Zr +4 and Ti +4 , Sn +4 , Sm +4 , Hf +4 , Ce +4 and mixtures thereof, and wherein x is from 0 to 0.2; said ceramic layer being disposed between said metallic layers and cooperating therewith to form at least a portion of a body for said separator; and a voltage source connected between said metallic layers.
Claim 2
Dependent Claim
107 words
An oxygen separator for separating oxygen from a first gas, comprising: at least two layers of a porous metallic conductor; at least one layer of an electrolytic ceramic material Ni(Nb 1-x M x ) 2 O 6-x wherein M is selected from the group consising of Zr +4 and Ti +4 , Sn +4 , Sm +4 , Hf +4 , Ce +4 and mixtures thereof, and wherein x is from 0 to 0.2; said ceramic layer being disposed between said metallic layers and cooperating therewith to form at least a portion of a body for said separator; and a voltage source connected between said metallic layers.
Claim 3
Dependent Claim
16 words
The separator of claim 1 in which said ceramic material comprises NiNb 2 O 6 .
Claim 4
Dependent Claim
12 words
The separator of claim 1 wherein said porous metallic conductor is platinum.
Claim 5
Dependent Claim
55 words
The separator of claim 1, further comprising: a first electrode connected to a first of said layers of said porous metallic conductor; and a second electrode connected to a second of said layers of said porous metallic conductor; said voltage source being connected between said metallic layers by connection with said first and second electrodes.
Claim 6
Dependent Claim
114 words
An oxygen separator for separating oxygen from a first gas, comprising: at least two layers of a porous metallic conductor; at least one layer of an electrolytic ceramic material Ni 2 (Nb 1-x M x ) 2 O 7-x wherein M is selected from the group consisting of Zr +4 Ti +4 , Sn +4 , Sm +4 , Hf +4 , Ce +4 and mixtures thereof, and wherein x is from 0 to 0.2; said layer of ceramic material being disposed between said layers of said porous metallic conductor and cooperating therewith to form at leat a portion of a body for said separator; and a voltage source connected between said metallic layers.
Claim 7
Dependent Claim
114 words
An oxygen separator for separating oxygen from a first gas, comprising: at least two layers of a porous metallic conductor; at least one layer of an electrolytic ceramic material Ni 2 (Nb 1-x M x ) 2 O 7-x wherein M is selected from the group consisting of Zr +4 Ti +4 , Sn +4 , Sm +4 , Hf +4 , Ce +4 and mixtures thereof, and wherein x is from 0 to 0.2; said layer of ceramic material being disposed between said layers of said porous metallic conductor and cooperating therewith to form at leat a portion of a body for said separator; and a voltage source connected between said metallic layers.
Claim 8
Dependent Claim
12 words
The separator of claim 5 wherein said porous metallic conductor is platinum.
Claim 9
Dependent Claim
55 words
The separator of claim 5, further comprising: a first electrode connected to a first of said layers of said porous metallic conductor; and a second electrode connected to a second of said layers of said porous metallic conductor; said voltage source being connected between said metallic layers by connection with said first and second electrodes.
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) | 1988-10-14 | 1989-04-15 | 1989-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-14 | 1993-04-15 | 1993-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-14 | 1997-04-15 | 1997-10-15 | $7700.00 | Window Closed / Lapsed |