Patent US4544312A successfully refreshed from Google Patents.
Patent US2664853A successfully refreshed from Google Patents.
US2664853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for vapor coating
Assignee: National Research Corp
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Filing: 1952-05-12
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Granted: 1954-01-05
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Expires: 1972-05-12
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Schuler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:46
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C14/26; C23C14/246
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
APPARATUS FOR COATING A SUBSTRATE WITH ALUMINUM BY VACUUM EVAPORATING SAID ALUMINUM ON SAID SUBSTRATE, SAID APPARATUS COMPRISING A VACUUM CHAMBER, MEANS PROVIDING A SOURCE OF ALUMINUM IN SAID VACUUM CHAMBER, MEANS FOR EVACUATING SAID CHAMBER, AN ELONGATED HOLLOW MEMBER HAVING AN ELONGATED GROOVE ALONG THE TOP THEREOF POSITIONED WITHIN SAID CHAMBER, SAID MEMBER HAVING A SURFACE WETTABLE BY MOLTEN ALUMINUM, MEANS FOR FEEDING ALUMINUM FROM SAID SOURCE THEREOF TO SAID HOLLOW MEMBER AT A RATE SUFFICIENT TO KEEP SAID GROOVE SUBSTANTIALLY COMPLETELY FILLED WITH MOLTEN ALUMINUM, SAID WETTABLE SURFACE ON SAID MEMBER ASSURING COVERAGE BY MOLTEN ALUMINUM OF A SUBSTANTIAL PORTION OF SAID MEMBER IN ADDITION TO SAID GROOVE, A HEATER ROD INSIDE OF SAID HOLLOW MEMBER, MEANS FOR ELECTRICALLY INSULATING SAID HEATER ROD FROM SAID HOLLOW MEMBER, MEANS FOR SUPPLYING ELECTRIC CURRENT TO SAID HEATER ROD TO RAISE THE TEMPERATURE THEREOF TO ABOUT 2000* C. AND ABOVE, AND MEANS FOR PASSING SAID SUBSTRATE OVER SAID MEMBER TO COAT SAID SUBSTRATE WITH ALUMINUM.
Claim 2
Dependent Claim
164 words
APPARATUS FOR COATING A SUBSTRATE WITH ALUMINUM BY VACUUM EVAPORATING SAID ALUMINUM ON SAID SUBSTRATE, SAID APPARATUS COMPRISING A VACUUM CHAMBER, MEANS PROVIDING A SOURCE OF ALUMINUM IN SAID VACUUM CHAMBER, MEANS FOR EVACUATING SAID CHAMBER, AN ELONGATED HOLLOW MEMBER HAVING AN ELONGATED GROOVE ALONG THE TOP THEREOF POSITIONED WITHIN SAID CHAMBER, SAID MEMBER HAVING A SURFACE WETTABLE BY MOLTEN ALUMINUM, MEANS FOR FEEDING ALUMINUM FROM SAID SOURCE THEREOF TO SAID HOLLOW MEMBER AT A RATE SUFFICIENT TO KEEP SAID GROOVE SUBSTANTIALLY COMPLETELY FILLED WITH MOLTEN ALUMINUM, SAID WETTABLE SURFACE ON SAID MEMBER ASSURING COVERAGE BY MOLTEN ALUMINUM OF A SUBSTANTIAL PORTION OF SAID MEMBER IN ADDITION TO SAID GROOVE, A HEATER ROD INSIDE OF SAID HOLLOW MEMBER, MEANS FOR ELECTRICALLY INSULATING SAID HEATER ROD FROM SAID HOLLOW MEMBER, MEANS FOR SUPPLYING ELECTRIC CURRENT TO SAID HEATER ROD TO RAISE THE TEMPERATURE THEREOF TO ABOUT 2000* C. AND ABOVE, AND MEANS FOR PASSING SAID SUBSTRATE OVER SAID MEMBER TO COAT SAID SUBSTRATE WITH ALUMINUM.
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) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |