US3855095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical electrode assembly and method of making same
Assignee: Beckman Coulter Inc
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Filing: 1969-01-13
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Granted: 1974-12-17
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Expires: 1989-01-13
Abstract
Abstract A glass electrode assembly including inner and outer glass tubes in which the internal half cell of the electrode is sealed by a glass seal to the inner tube close to the ion sensitive bulb by means of wave energy, rather than a gas flame, so as to avoid contamination of electrolyte in the electrode.
Inventors
- 👤 L Leonard
- 👤 A Petersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:15
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/36; C; C03; C03B; C03B23/00; C03B23/20
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
127 words
An electrochemical electrode assembly comprising: inner and outer glass tubes spaced apart to define an annular chamber; a glass ring seal sealing said tubes to each other adjacent one end thereof; an ion sensitive bulb sealed to at least one of said tubes at said one end; an electrolyte filling said bulb; said inner tube having a constriction therein intermediate said glass ring seal and the other end of said outer tube; an internal half-cell immersed in said electrolyte; a wire extending through said constriction and being connected to said half-cell; a second glass seal sealing said wire in said constriction; and said outer glass tube being devoid of a concentric glass ring seal between said glass ring seal and the other end of said outer tube.
Claim 2
Dependent Claim
127 words
An electrochemical electrode assembly comprising: inner and outer glass tubes spaced apart to define an annular chamber; a glass ring seal sealing said tubes to each other adjacent one end thereof; an ion sensitive bulb sealed to at least one of said tubes at said one end; an electrolyte filling said bulb; said inner tube having a constriction therein intermediate said glass ring seal and the other end of said outer tube; an internal half-cell immersed in said electrolyte; a wire extending through said constriction and being connected to said half-cell; a second glass seal sealing said wire in said constriction; and said outer glass tube being devoid of a concentric glass ring seal between said glass ring seal and the other end of said outer tube.
Claim 3
Dependent Claim
119 words
An electrochemical electrode assembly comprising: inner and outer glass tubes spaced apart to define an annular chamber; a glass seal sealing said tubes to each other adjacent one end thereof; an ion sensitive bulb sealed to said glass seal; an electrolyte filling said bulb; said inner tube having a constriction therein intermediate said glass seal and the other end of said outer tube; an internal half-cell immersed in said electrolyte; a wire extending through said constriction and being connected to said half-cell; a second glass seal sealing said wire in said constriction; and said outer glass tube being devoid of a concentric glass ring seal between said first mentioned glass seal and the other end of said outer tube.
Claim 4
Dependent Claim
119 words
An electrochemical electrode assembly comprising: inner and outer glass tubes spaced apart to define an annular chamber; a glass seal sealing said tubes to each other adjacent one end thereof; an ion sensitive bulb sealed to said glass seal; an electrolyte filling said bulb; said inner tube having a constriction therein intermediate said glass seal and the other end of said outer tube; an internal half-cell immersed in said electrolyte; a wire extending through said constriction and being connected to said half-cell; a second glass seal sealing said wire in said constriction; and said outer glass tube being devoid of a concentric glass ring seal between said first mentioned glass seal and the other end of said outer tube.
Claim 5
Dependent Claim
39 words
An electrode as set forth in claim 1 wherein said inner and outer glass tubes are devoid of a glass sealed electrolyte filling opening other than that provided by said second glass seal sealing said wire in said constriction.
Claim 6
Dependent Claim
13 words
An electrode as set forth in claim 3 wherein said wire is solid.
Claim 7
Independent Claim
159 words
A method of producing an electrochemical electrode assembly comprising the steps of: providing a wire having an internal half-cell at one end thereof; forming an assembly having spaced inner and outer glass tubes with a glass seal sealing said tubes to each other adjacent one end thereof, and said inner tube having a constriction therein intermediate the ends of said outer tube; forming a bulb of ion sensitive glass on said assembly adjacent to said one end so as to close said inner tube at said end; substantially filling said bulb through the constriction in said inner tube with electrolyte; positioning sAid wire through said constriction so that said half-cell will be immersed in the electrolyte in said bulb; and thereafter sealing said wire in said constriction by inserting an electrically conductive element into said assembly through the other end thereof so as to be positioned immediately adjacent to said constriction and by applying wave energy to said element.
Claim 8
Independent Claim
159 words
A method of producing an electrochemical electrode assembly comprising the steps of: providing a wire having an internal half-cell at one end thereof; forming an assembly having spaced inner and outer glass tubes with a glass seal sealing said tubes to each other adjacent one end thereof, and said inner tube having a constriction therein intermediate the ends of said outer tube; forming a bulb of ion sensitive glass on said assembly adjacent to said one end so as to close said inner tube at said end; substantially filling said bulb through the constriction in said inner tube with electrolyte; positioning sAid wire through said constriction so that said half-cell will be immersed in the electrolyte in said bulb; and thereafter sealing said wire in said constriction by inserting an electrically conductive element into said assembly through the other end thereof so as to be positioned immediately adjacent to said constriction and by applying wave energy to said element.
Claim 9
Dependent Claim
41 words
A method as set forth in claim 5 wherein said electrically conductive element has an opening therethrough, and said wire is caused to pass through said opening when said element is inserted into said assembly whereby said element surrounds said wire.
Claim 10
Dependent Claim
37 words
A method as set forth in claim 5 wherein said wire is sealed in said constriction by surrounding the outer tube with an induction heater coil adjacent to said element to transfer electromagnetic energy to said element.
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) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |