Patent US3847660A successfully refreshed from Google Patents.
US3847660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bi-polar acrivating particles for electrodeposition process
Assignee: Saint Gobain Abrasives Inc
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Filing: 1972-05-31
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Granted: 1974-11-12
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Expires: 1992-05-31
Abstract
Abstract An electrically-conductive mass in the form of a small particle encapsulated in a hard non-conductive outer sheath having at least one opening in such sheath permitting contact between such conductive mass and a liquid electrolyte when the particle is immersed in such electrolyte. Preferably, the conductive mass and/or the outer sheath is so formed or treated that the conductive mass does not protrude beyond the sheath at any of said openings.
Inventors
- 👤 S Eisner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:53
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/60; C25D5/605; C25D5/611; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2998
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
66 words
A BI-POLAR CONDCUTIVE PARTICLE FOR USE IN ELECTROCHEMICAL PROCESSES WHICH COMPRISES: A. A CONDUCTIVE METAL CORE MEMBER; AND B. A HARD, NON-CONDUCTIVE SHATH COMPLETELY ENCAPSULATING SAID CORE MEMBER EXCEPT AT DIAMETRICALLY OPPOSED OPENINGS THEREIN WHICH PERMIT CONTACT BETWEEN SUCH CONDUTIVE CORE AND A LIQUID ELECTROLYTE WHEN THE PARTICLE IS IMMERSED IN SUCH ELCTROLYTE; C. SAID CORE MEMBER BEING RECESSED AT SAID OPENINGS IN SAID NON-CONDUCTIVE SHEATH.
Claim 2
Dependent Claim
66 words
A BI-POLAR CONDCUTIVE PARTICLE FOR USE IN ELECTROCHEMICAL PROCESSES WHICH COMPRISES: A. A CONDUCTIVE METAL CORE MEMBER; AND B. A HARD, NON-CONDUCTIVE SHATH COMPLETELY ENCAPSULATING SAID CORE MEMBER EXCEPT AT DIAMETRICALLY OPPOSED OPENINGS THEREIN WHICH PERMIT CONTACT BETWEEN SUCH CONDUTIVE CORE AND A LIQUID ELECTROLYTE WHEN THE PARTICLE IS IMMERSED IN SUCH ELCTROLYTE; C. SAID CORE MEMBER BEING RECESSED AT SAID OPENINGS IN SAID NON-CONDUCTIVE SHEATH.
Claim 3
Dependent Claim
16 words
A particle as in claim 1 wherein said non-conductive sheath is formed from a ceramic material.
Claim 4
Dependent Claim
16 words
A particle as in claim 1 wherein said non-conductive sheath is formed from a thermosetting resin.
Claim 5
Dependent Claim
23 words
A particle as in claim 1 wherein a plurality of small, hard, non-conductive particles are embedded in the material forming said non-conductive sheath.
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) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |