US3066084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic pickling
Assignee: Jones and Laughlin Steel Corp
•
Filing: 1959-08-10
•
Granted: 1962-11-27
•
Expires: 1979-08-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry F Osterman
- 👤 Russel L Uphoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:25
CPC Classifications
B; B08; B08B; B08B3/00; B08B3/04; B08B3/10; B08B3/12; C; C25; C25F; C25F1/00; C25F1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
IN THE PROCESS OF DESCALING METAL BY REACTING IT WITH A BATH WHICH DISSOLVES THE SCALE ON THE METAL AND IN WHICH AN ELECTRICAL POTENTIAL EXISTS BETWEEN THE SCALED METAL AND A SCALE-FREE PIECE OF THE SAME KIND OF METAL IMMERSED IN THE BATH, THE IMPROVEMENT COMPRISING INDUCING ULTRASONIC VIBRATIONS IN THE BATH ONLY DURING THE PORTION OF THE DESCALING PROCESS WHEN THAT ELECTRICAL POTENTIAL INCREASES, WHEREBY THAT INCREASE IS ACCELERATED AND THE TOTAL TIME REQUIRED FOR DESCALING IS SHORTENED.
Claim 2
Dependent Claim
80 words
IN THE PROCESS OF DESCALING METAL BY REACTING IT WITH A BATH WHICH DISSOLVES THE SCALE ON THE METAL AND IN WHICH AN ELECTRICAL POTENTIAL EXISTS BETWEEN THE SCALED METAL AND A SCALE-FREE PIECE OF THE SAME KIND OF METAL IMMERSED IN THE BATH, THE IMPROVEMENT COMPRISING INDUCING ULTRASONIC VIBRATIONS IN THE BATH ONLY DURING THE PORTION OF THE DESCALING PROCESS WHEN THAT ELECTRICAL POTENTIAL INCREASES, WHEREBY THAT INCREASE IS ACCELERATED AND THE TOTAL TIME REQUIRED FOR DESCALING IS SHORTENED.
References Cited (Backward Citations)
US1965399A
Cited
US2165326A
Cited
US2522082A
Cited
US2744860A
Cited
GB748485A
Cited
US2888939A
Cited
US2893707A
Cited
US2894960A
Cited
US2845077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-26 | 1966-05-28 | 1966-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-26 | 1970-05-28 | 1970-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-26 | 1974-05-28 | 1974-11-27 | $7700.00 | Window Closed / Lapsed |