Patent US2795512A successfully refreshed from Google Patents.
US2795512A
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Electrostatic method and apparatus for lining molds
Assignee: General Electric Co
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Filing: 1953-08-28
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Granted: 1957-06-11
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Expires: 1973-08-28
Abstract
No abstract record available.
Inventors
- 👤 George W Sherratt
- 👤 Clarence E Hahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:24
CPC Classifications
B; B05; B05B; B05B5/00; B05B5/16; B05B5/1683; B05B5/08; C; C03; C03B; C03B40/00; C03B40/02; C03B40/027
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
80 words
THE METHOD OF COATING A METAL MOLD WITH MEAN SIZE DRY PARTICLES FROM A MASS INCLUDING MEANS SIZE AND OFFSIZE DRY PARTICLES WHICH COMPRISES THE STEP OF ENTRAINING PARTICLES FROM SAID MASS IN AN AIR STREAM DIRECTED TOWARD SAID MOLD TO EFFECT AIR SEPARATION OF SAID PARTICLES WHILE CREATING AN ELECTROSTATIC FIELD UPSTREAM FROM SAID MOLD TO EFFECT ELECTROSTATIC SEPARATION OF ENTRAINED PARTICLES AND WHILE CREATING ALSO AN ELECTROSTATIC FIELD AT SAID MOLD TO CAUSE DEPOSITION OF ENTRAINED PARTICLES THEREON.
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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) | 1960-06-10 | 1960-12-10 | 1961-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-10 | 1964-12-10 | 1965-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-10 | 1968-12-10 | 1969-06-11 | $7700.00 | Window Closed / Lapsed |