US2723646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for electrostatic atomization and coating
Assignee: Ransburg Corp
•
Filing: 1950-04-01
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Granted: 1955-11-15
•
Expires: 1970-04-01
Abstract
No abstract record available.
Inventors
- 👤 Edwin M Ransburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:08
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/007; B05B; B05B5/00; B05B5/025; B05B5/057; B05B5/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN AN ELECTROSTATIC ATOMIZER, AN ENDLESS FLEXIBLE MEMBER PROVIDED WITH A LIQUID-SUPPORTING SURFACE AND MOVABLE ALTERNATELY OVER A RECTILINEAR PATH PORTION AND A CURVED PATH PORTION, MEANS ADJACENT SAID MEMBER TO PROVIDE ON THE RECTILINEAR PATH PORTION A FILM OF LIQUID MATERIAL TO BE SUPPORTED BY THE LIQUID-SUPPORTING SURFACE, MEANS INCLUDING A HIGH-VOLTAGE SOURCE FOR MAINTAINING AN ELECTROSTATIC FIELD OVER THE SURFACE OF SAID FILM AT AND ADJACENT THE CURVED PATH PORTION, THE CURVATURE OF THE MEMBER AND THE SUPPORTED FILM AT THE CURVED PATH PORTION BEING SUFFICIENT TO INCREASE THE POTENTIAL GRADIENT OF THE FIELD AT THE CURVED PATH PORTION TO A VALUE AT WHICH THE FIELD IS CAPABLE OF ELECTROSTATICALLY ATOMIZING THE LIQUID MATERIAL FROM SAID CURVED PATH PORTION.
Claim 2
Dependent Claim
121 words
IN AN ELECTROSTATIC ATOMIZER, AN ENDLESS FLEXIBLE MEMBER PROVIDED WITH A LIQUID-SUPPORTING SURFACE AND MOVABLE ALTERNATELY OVER A RECTILINEAR PATH PORTION AND A CURVED PATH PORTION, MEANS ADJACENT SAID MEMBER TO PROVIDE ON THE RECTILINEAR PATH PORTION A FILM OF LIQUID MATERIAL TO BE SUPPORTED BY THE LIQUID-SUPPORTING SURFACE, MEANS INCLUDING A HIGH-VOLTAGE SOURCE FOR MAINTAINING AN ELECTROSTATIC FIELD OVER THE SURFACE OF SAID FILM AT AND ADJACENT THE CURVED PATH PORTION, THE CURVATURE OF THE MEMBER AND THE SUPPORTED FILM AT THE CURVED PATH PORTION BEING SUFFICIENT TO INCREASE THE POTENTIAL GRADIENT OF THE FIELD AT THE CURVED PATH PORTION TO A VALUE AT WHICH THE FIELD IS CAPABLE OF ELECTROSTATICALLY ATOMIZING THE LIQUID MATERIAL FROM SAID CURVED PATH PORTION.
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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) | 1958-11-14 | 1959-05-16 | 1959-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-14 | 1963-05-16 | 1963-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-14 | 1967-05-16 | 1967-11-15 | $7700.00 | Window Closed / Lapsed |