US2730460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic method and apparatus
Assignee: Ransburg Corp
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Filing: 1949-09-28
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Granted: 1956-01-10
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Expires: 1969-09-28
Abstract
No abstract record available.
Inventors
- 👤 Harold P Ransburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:33
CPC Classifications
B; B05; B05B; B05B5/00; B05B5/08; B05B5/087; B05B14/00; B05B14/40; B05B14/42; Y; Y10; Y10S; Y10S55/00; Y10S55/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A METHOD OF ELECTROSTATICALLY DEPOSITING LIQUID COATING MATERIAL ON THE SURFACE OF A PLURALITY OF ARTICLES COMPRISING MOVING THE ARTICLES IN SPACED RELATION TO EACH OTHER OVER A PREDETERMINED PATH IN COATING ZONE, MAINTAINING AN ELECTROSTATIC FIELD OVER THE SURFACES OF THE ARTICLES IN THE COATING ZONE, THE LINES OF FORCE OF SAID FIELD BEING GENERALLY PERPENDICULAR TO SAID PATH, DISCHARGING A STREAM OF ATOMIZED COATING MATERIAL PARTICLES INTO THE FIELD ON ONE SIDE OF SAID ARTICLE-PATH FOR ELECTROSTATIC DEPOSITION ON THE ARTICLES, AND WITHDRAWING AIR FROM SAID COATING ZONE ON THE OPPOSITE SIDE OF SAID ARTICLE-PATH FROM WHERE
Claim 2
Independent Claim
99 words
A METHOD OF ELECTROSTATICALLY DEPOSITING LIQUID COATING MATERIAL ON THE SURFACE OF A PLURALITY OF ARTICLES COMPRISING MOVING THE ARTICLES IN SPACED RELATION TO EACH OTHER OVER A PREDETERMINED PATH IN COATING ZONE, MAINTAINING AN ELECTROSTATIC FIELD OVER THE SURFACES OF THE ARTICLES IN THE COATING ZONE, THE LINES OF FORCE OF SAID FIELD BEING GENERALLY PERPENDICULAR TO SAID PATH, DISCHARGING A STREAM OF ATOMIZED COATING MATERIAL PARTICLES INTO THE FIELD ON ONE SIDE OF SAID ARTICLE-PATH FOR ELECTROSTATIC DEPOSITION ON THE ARTICLES, AND WITHDRAWING AIR FROM SAID COATING ZONE ON THE OPPOSITE SIDE OF SAID ARTICLE-PATH FROM WHERE
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) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |