Patent US3236679A successfully refreshed from Google Patents.
US3236679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic spraying
Assignee: Ransburg Corp
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Filing: 1961-03-06
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Granted: 1966-02-22
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Expires: 1981-03-06
Abstract
No abstract record available.
Inventors
- 👤 Lester L Spiller
- 👤 Edward G Bobalek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:14
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/02; B05D1/04; B05D1/045; B01; B01J; B01J13/00; B01J13/0052; B01J13/0065; B05D7/00; B05D7/06; B05D1/18; B05D1/185; B05D2203/00; B05D2203/20; B05D5/00; B05D5/12; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A METHOD OF ELECTROSTATICALLY COATING AN ARTICLE HAVING AN ELECTRICALLY INSULATING SURFACE INCLUDING FUNCTIONAL GROUPS ADAPTED FOR CHEMISORPTION WITH ELECTRICALLY CHARGED IONS COMPRISING DEPOSITING UPON SAID ARTICLE A THIN ELECTRICALLY CONTINUOUS CONDUCTIVE GEL SURFACE LAYER CONTAINING POLAR LIQUID OF HIGH DIELECTRIC CONSTANT AND STABLE UNDER NORMAL ATMOSPHERIC CONDITINS, SAID GEL LAYER CONSISTING ESSENTIALLY OF IONIZABLE ORGANIC COMPOUND CAPABLE OF IONIZING TO FORM A POSITIVELY CHARGED ORGANIC ION CAPABLE OF CHEMISORPTION WITH SAID FUNCTIONAL GROUPS IN SAID SURFACE, AND STRONGLY ELECTRONEGATIVE MONOVALENT IONS, AND HAVING A THICKNESS OF AT LEAST ABOUT 1000 A. AND A RESISTIVITY OF NOT MORE THAN 10**10 OHMS PER SQUARE, SAID IONZABLE ORGANIC COMPOUND BEING RESPONSIBLE FOR THE FORMATION OF THE REQUIRED GEL STRUCTURE, AND PROJECTING ELECTROSTATICALLY CHARGED COATING PARTICLES TOWARD SAID SURFACE WHILE DISSIPATING THE ELECTROSTATIC CHARGE ON SAID SURFACE TO MAINTAIN SAID SURFACE AT A RELATIVELY OPPOSITE POLARITY WITH RESPECT TO THE ELECTROSTATIC CHARGE ON SAID COATING PARTICLES.
Claim 2
Independent Claim
153 words
A METHOD OF ELECTROSTATICALLY COATING AN ARTICLE HAVING AN ELECTRICALLY INSULATING SURFACE INCLUDING FUNCTIONAL GROUPS ADAPTED FOR CHEMISORPTION WITH ELECTRICALLY CHARGED IONS COMPRISING DEPOSITING UPON SAID ARTICLE A THIN ELECTRICALLY CONTINUOUS CONDUCTIVE GEL SURFACE LAYER CONTAINING POLAR LIQUID OF HIGH DIELECTRIC CONSTANT AND STABLE UNDER NORMAL ATMOSPHERIC CONDITINS, SAID GEL LAYER CONSISTING ESSENTIALLY OF IONIZABLE ORGANIC COMPOUND CAPABLE OF IONIZING TO FORM A POSITIVELY CHARGED ORGANIC ION CAPABLE OF CHEMISORPTION WITH SAID FUNCTIONAL GROUPS IN SAID SURFACE, AND STRONGLY ELECTRONEGATIVE MONOVALENT IONS, AND HAVING A THICKNESS OF AT LEAST ABOUT 1000 A. AND A RESISTIVITY OF NOT MORE THAN 10**10 OHMS PER SQUARE, SAID IONZABLE ORGANIC COMPOUND BEING RESPONSIBLE FOR THE FORMATION OF THE REQUIRED GEL STRUCTURE, AND PROJECTING ELECTROSTATICALLY CHARGED COATING PARTICLES TOWARD SAID SURFACE WHILE DISSIPATING THE ELECTROSTATIC CHARGE ON SAID SURFACE TO MAINTAIN SAID SURFACE AT A RELATIVELY OPPOSITE POLARITY WITH RESPECT TO THE ELECTROSTATIC CHARGE ON SAID COATING PARTICLES.
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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |