US2657150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and masking shield for interiorly coating hollow articles
Assignee: General Electric Co
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Filing: 1948-05-18
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Granted: 1953-10-27
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Expires: 1968-05-18
Abstract
No abstract record available.
Inventors
- 👤 Herman E Hermanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:26
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; C; C23; C23C; C23C14/00; C23C14/04; C23C14/042; C23C14/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
THE METHOD OF PRODUCING AN INTERNAL COATING ON A WALL PORTION OTHER THAN THE CLOSED END WALL OF A HOLLOW ARTICLE HAVING A CONSTRICTED OPENING THEREINTO WHICH METHOD COMPRISES, INTRODUCING INTO THE ARTICLE A NORMALLY CONICAL-SHAPED COLLAPSIBLE SHIELD AND POSITIONING THE SHIELD WITHIN THE ARTICLE TO EXPAND AGAINST THE WALL OF THE ARTICLE AND MASK OFF THE INNER SURFACE OF THE CLOSED END WALL PORTION TO BE LEFT CLEAR, COATING THE EXPOSED PORTION TO THE INNER WALL OF THE ARTICLE BY DEPOSITING THEREON A LAYER OF FINELY DIVIDED COATING MATERIAL FROM A CLOUD OF SUCH MATERIAL FILLING THE HOLLOW INTERIOR OF THE ARTICLE. AND THEN REMOVING THE SHIELD FROM THE ARTICLE WITHOUT THE SHIELD CONTACTING AND INJURING THE COATING BY INSERTING IN THE ARTICLE A GUIDE TUBE THROUGH THE CONSTRICTED OPENING IN THE ARTICLE AND COLLAPSING THE SHIELD INTO AND DRAWING IT THROUGH THE SAID GUIDE TUBE.
Claim 2
Independent Claim
147 words
THE METHOD OF PRODUCING AN INTERNAL COATING ON A WALL PORTION OTHER THAN THE CLOSED END WALL OF A HOLLOW ARTICLE HAVING A CONSTRICTED OPENING THEREINTO WHICH METHOD COMPRISES, INTRODUCING INTO THE ARTICLE A NORMALLY CONICAL-SHAPED COLLAPSIBLE SHIELD AND POSITIONING THE SHIELD WITHIN THE ARTICLE TO EXPAND AGAINST THE WALL OF THE ARTICLE AND MASK OFF THE INNER SURFACE OF THE CLOSED END WALL PORTION TO BE LEFT CLEAR, COATING THE EXPOSED PORTION TO THE INNER WALL OF THE ARTICLE BY DEPOSITING THEREON A LAYER OF FINELY DIVIDED COATING MATERIAL FROM A CLOUD OF SUCH MATERIAL FILLING THE HOLLOW INTERIOR OF THE ARTICLE. AND THEN REMOVING THE SHIELD FROM THE ARTICLE WITHOUT THE SHIELD CONTACTING AND INJURING THE COATING BY INSERTING IN THE ARTICLE A GUIDE TUBE THROUGH THE CONSTRICTED OPENING IN THE ARTICLE AND COLLAPSING THE SHIELD INTO AND DRAWING IT THROUGH THE SAID GUIDE TUBE.
References Cited (Backward Citations)
US2123706A
Cited
US2181292A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |