Patent US4033957A successfully refreshed from Google Patents.
Patent US3086711A successfully refreshed from Google Patents.
US3086711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray guns having a fixed electrostatic head
Assignee: Machines Electrostatiques SA
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Filing: 1960-04-25
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Granted: 1963-04-23
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Expires: 1980-04-25
Abstract
No abstract record available.
Inventors
- 👤 Point Marcel August Roger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:21
CPC Classifications
B; B05; B05B; B05B5/00; B05B5/025; B05B5/04; B05B5/0403; B05B5/0411
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A SPRAY GUN FOR AN ELECTROSTATIC SPRAY COATING PROCESS COMPRISING A GUN BODY HAVING A HAND GRIP, A HOLLOW SPRAYER HEAD ATTACHED TO AND INSULATED FROM SAID BODY, MEANS FOR APPLYING A HIGH DIRECT VOLTAGE TO SAID HEAD, CONDUIT MEANS FOR DELIVERING SPRAYABLE FLUID INTO SAID HEAD, A PLURALITY OF SPRAY DISCHARGE ORIFICES IN SAID HEAD EACH HAVING A TRANSVERSE DIMENSION NOT GREATER THAN ABOUT ONE HALF A MILLIMETER WHEREBY SAID FLUID WILL ISSUE FROM SAID ORIFICES AS A SPRAY OF DISCRETE, ELECTRICALLY CHARGED PARTICLES, A SCRAPER MEMBER MOUNTED FOR ROTATION WITHIN SAID HEAD AND ENGAGING THE INNER SURFACE THEREOF IN THE ORIFICED AREA, MEANS FOR DRIVING THE SCRAPER IN ROTATION, A FINGER OPERABLE TRIGGER CONTROL ON SAID GRIP AND MEANS OPERATED BY SAID FINGER OPERABLE TRIGGER CONTROL FOR CONTROLLING THE ROTATION OF SAID SCRAPER MEMBER.
Claim 2
Dependent Claim
136 words
A SPRAY GUN FOR AN ELECTROSTATIC SPRAY COATING PROCESS COMPRISING A GUN BODY HAVING A HAND GRIP, A HOLLOW SPRAYER HEAD ATTACHED TO AND INSULATED FROM SAID BODY, MEANS FOR APPLYING A HIGH DIRECT VOLTAGE TO SAID HEAD, CONDUIT MEANS FOR DELIVERING SPRAYABLE FLUID INTO SAID HEAD, A PLURALITY OF SPRAY DISCHARGE ORIFICES IN SAID HEAD EACH HAVING A TRANSVERSE DIMENSION NOT GREATER THAN ABOUT ONE HALF A MILLIMETER WHEREBY SAID FLUID WILL ISSUE FROM SAID ORIFICES AS A SPRAY OF DISCRETE, ELECTRICALLY CHARGED PARTICLES, A SCRAPER MEMBER MOUNTED FOR ROTATION WITHIN SAID HEAD AND ENGAGING THE INNER SURFACE THEREOF IN THE ORIFICED AREA, MEANS FOR DRIVING THE SCRAPER IN ROTATION, A FINGER OPERABLE TRIGGER CONTROL ON SAID GRIP AND MEANS OPERATED BY SAID FINGER OPERABLE TRIGGER CONTROL FOR CONTROLLING THE ROTATION OF SAID SCRAPER MEMBER.
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) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |