Patent US3090352A successfully refreshed from Google Patents.
US3090352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molten metal trap for coating apparatus
Assignee: Armco Inc
•
Filing: 1960-09-26
•
Granted: 1963-05-21
•
Expires: 1980-09-26
Abstract
No abstract record available.
Inventors
- 👤 Earle L Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:02
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/003; C23C2/0038; C23C2/0036; C23C2/00361; C23C2/00362; Y; Y10; Y10S; Y10S118/00; Y10S118/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
IN A COATING APPARATUS WHEREIN A CLEAN, HOT METALLIC STRAND IS COATED WITH A DIFFERENT METAL BY THE HOT DIP PROCESS, AND WHEREIN SAID STRAND IS CAUSED TO PASS FROM A PRETREATMENT APPARATUS VERTICALLY UPWARD THROUGH AN APERTURE IN THE BOTTOM OF THE COATING POT CONTAINING MOLTEN COATING METAL; A TRAP FOR PREVENTING MOLTEN COATING METAL WHICH MAY SEEP THROUGH SAID APERTURE FROM GETTING INTO SAID PRETREATMENT APPARATUS, COMPRISING A VERTICAL TUBULAR MEMBER SECURED TO THE BOTTOM OF SAID POT IN ALIGNMENT WITH SAID APERTURE AND CONNECTED TO SAID PRETREATMENT APPARATUS, SAID TUBULAR MEMBER HAVING AN INTERNAL DIAMETER SUBSTANTIALLY GREATER THAN THE STRAND BEING COATED, SAID TUBULAR MEMBER BEING AT A TEMPERATURE BELOW THAT OF SAID COATING METAL, AND A TUBULAR INSERT IN SAID TUBULAR MEMBER BELOW THE TOP THEREOF, SAID INSERT HAVING AN INSIDE DIAMETER FROM ABOUT .035 INCH TO ABOUT .040 INCH GREATER THAN SAID STRAND, SAID TUBULAR INSERT BEING ALSO AT A TEMPERATURE BELOW THAT OF SAID COATING METAL WHEREBY ANY MOLTEN COATING METAL WHICH FALLS THROUGH SAID APERTURE IN THE BOTTOM OF THE COATING POT WILL FREEZE AGAINST SAID INSERT.
Claim 2
Dependent Claim
184 words
IN A COATING APPARATUS WHEREIN A CLEAN, HOT METALLIC STRAND IS COATED WITH A DIFFERENT METAL BY THE HOT DIP PROCESS, AND WHEREIN SAID STRAND IS CAUSED TO PASS FROM A PRETREATMENT APPARATUS VERTICALLY UPWARD THROUGH AN APERTURE IN THE BOTTOM OF THE COATING POT CONTAINING MOLTEN COATING METAL; A TRAP FOR PREVENTING MOLTEN COATING METAL WHICH MAY SEEP THROUGH SAID APERTURE FROM GETTING INTO SAID PRETREATMENT APPARATUS, COMPRISING A VERTICAL TUBULAR MEMBER SECURED TO THE BOTTOM OF SAID POT IN ALIGNMENT WITH SAID APERTURE AND CONNECTED TO SAID PRETREATMENT APPARATUS, SAID TUBULAR MEMBER HAVING AN INTERNAL DIAMETER SUBSTANTIALLY GREATER THAN THE STRAND BEING COATED, SAID TUBULAR MEMBER BEING AT A TEMPERATURE BELOW THAT OF SAID COATING METAL, AND A TUBULAR INSERT IN SAID TUBULAR MEMBER BELOW THE TOP THEREOF, SAID INSERT HAVING AN INSIDE DIAMETER FROM ABOUT .035 INCH TO ABOUT .040 INCH GREATER THAN SAID STRAND, SAID TUBULAR INSERT BEING ALSO AT A TEMPERATURE BELOW THAT OF SAID COATING METAL WHEREBY ANY MOLTEN COATING METAL WHICH FALLS THROUGH SAID APERTURE IN THE BOTTOM OF THE COATING POT WILL FREEZE AGAINST SAID INSERT.
References Cited (Backward Citations)
US2216519A
Cited
US2255436A
Cited
US2283621A
Cited
US2394545A
Cited
US2507310A
Cited
GB755039A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |