US3155545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for external coating of objects
Assignee: Rheem Manufacturing Co
•
Filing: 1961-02-27
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Granted: 1964-11-03
•
Expires: 1981-02-27
Abstract
No abstract record available.
Inventors
- 👤 Ewalt H Rocks
- 👤 Marvin L Busby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:32
CPC Classifications
B; B05; B05B; B05B5/00; B05B5/08; B05B5/14; B05B1/00; B05B1/26; B05B1/262; B05B1/267; B05B7/00; B05B7/14; B05B7/1481; B05B7/1486; Y; Y10; Y10S; Y10S118/00; Y10S118/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
AN APPARATUS FOR EXTERNALLY COATING OBJECTS, WHICH COMPRISES: A FURNACE FOR PREHEATING AN ELECTRICALLY CONDUCTIVE WORKPIECE; MEANS FOR CONVEYING SAID PREHEATED WORKPIECE FROM SAID FURNACE AND ELECTRICALLY GROUNDING SAID PREHEATED WORKPIECE; A CHAMBER SEPARATE FROM SAID FURNACE, ADAPTED TO RECEIVE SAID PREHEATED, GROUNDED WORKPIECE IN AXIALLY ALIGNED, SUSPENDED POSITION IN SAID CHAMBER; AN ELECTRIC GRID FOR PRODUCING AN ELECTROSTATIC CHARGE, SAID GRID BEING MOUNTED IN SAID CHAMBER SO AS TO SUBSTANTIALLY SURROUND SAID PREHEATED, GROUNDED WORKPIECE IN SPACED RELATIONSHIP TO SAID WORKPIECE; A PLURALITY OF POWDER SPRAY NOZZLES MOUNTED IN SAID CHAMBER AND DISPOSED SO AS TO INTRODUCE ATOMIZED POWDER BETWEEN SAID GRID AND SAID WORKPIECE AND SUBJECT THE PARTICLES
Claim 2
Independent Claim
110 words
AN APPARATUS FOR EXTERNALLY COATING OBJECTS, WHICH COMPRISES: A FURNACE FOR PREHEATING AN ELECTRICALLY CONDUCTIVE WORKPIECE; MEANS FOR CONVEYING SAID PREHEATED WORKPIECE FROM SAID FURNACE AND ELECTRICALLY GROUNDING SAID PREHEATED WORKPIECE; A CHAMBER SEPARATE FROM SAID FURNACE, ADAPTED TO RECEIVE SAID PREHEATED, GROUNDED WORKPIECE IN AXIALLY ALIGNED, SUSPENDED POSITION IN SAID CHAMBER; AN ELECTRIC GRID FOR PRODUCING AN ELECTROSTATIC CHARGE, SAID GRID BEING MOUNTED IN SAID CHAMBER SO AS TO SUBSTANTIALLY SURROUND SAID PREHEATED, GROUNDED WORKPIECE IN SPACED RELATIONSHIP TO SAID WORKPIECE; A PLURALITY OF POWDER SPRAY NOZZLES MOUNTED IN SAID CHAMBER AND DISPOSED SO AS TO INTRODUCE ATOMIZED POWDER BETWEEN SAID GRID AND SAID WORKPIECE AND SUBJECT THE PARTICLES
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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) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |