US3212914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric pulse coating process and apparatus
Assignee: Union Carbide Corp
•
Filing: 1961-05-23
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Granted: 1965-10-19
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Expires: 1981-05-23
Abstract
No abstract record available.
Inventors
- 👤 James W Lyle
- 👤 William B Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:45
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/16; B05B7/22; B05B7/222; B05B7/226; B05B7/0006; C; C23; C23C; C23C4/00; C23C4/12; C23C4/126; C23C4/134
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PROCESS FOR COATING OBJECTS WHICH COMPRISES INTRODUCING AT SUBSTANTIALLY ATMOSPHEREIC PRESSURE AN INERT GAS STREAM INTO A CHAMBER HAVING AN OPEN END; INTRODUCING A FINELY-DIVIDED POWDER COATING MATERIAL INTO SAID CHAMBER; DISCHAGING A SOURCE OF HIGH INTENSITY ELECTRICAL ENERGY BETWEEN SPACED ELECTRODES WITHIN SAID CHAMBER SO AS TO RAPIDLY INCREASE THE PRESSURE AND TEMPERATURE OF SAID INERT GAS; PASSING A RESULTING SHOCK WAVE AND RAPIDLY EXPANDING HOT GAS ALONG AND AROUND SAID FINELY-DIVIDED COATING MATERIAL SO AS TO EJECT SUCH MATERIAL FROM SAID OPEN END OF SAID CHAMBER; AND IMPINGING THE HOT HIGH VELOCITY COATING MATERIAL ON THE OBJECT TO BE COATED.
Claim 2
Dependent Claim
103 words
A PROCESS FOR COATING OBJECTS WHICH COMPRISES INTRODUCING AT SUBSTANTIALLY ATMOSPHEREIC PRESSURE AN INERT GAS STREAM INTO A CHAMBER HAVING AN OPEN END; INTRODUCING A FINELY-DIVIDED POWDER COATING MATERIAL INTO SAID CHAMBER; DISCHAGING A SOURCE OF HIGH INTENSITY ELECTRICAL ENERGY BETWEEN SPACED ELECTRODES WITHIN SAID CHAMBER SO AS TO RAPIDLY INCREASE THE PRESSURE AND TEMPERATURE OF SAID INERT GAS; PASSING A RESULTING SHOCK WAVE AND RAPIDLY EXPANDING HOT GAS ALONG AND AROUND SAID FINELY-DIVIDED COATING MATERIAL SO AS TO EJECT SUCH MATERIAL FROM SAID OPEN END OF SAID CHAMBER; AND IMPINGING THE HOT HIGH VELOCITY COATING MATERIAL ON THE OBJECT TO BE COATED.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |