Patent US3024138A successfully refreshed from Google Patents.
US3024138A
Expired / Lapsed
US
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Method of cleaning
Assignee: Curtiss Wright Corp
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Filing: 1959-09-30
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Granted: 1962-03-06
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Expires: 1979-09-30
Abstract
No abstract record available.
Inventors
- 👤 Heinz H Schlott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:55
CPC Classifications
B; B08; B08B; B08B3/00; B08B3/04; B08B3/10; B08B3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A METHOD FOR CLEANING OBJECTS WHICH COMPRISES IMMERSING SAID OBJECTS IN A FLOWING CLEANING LIQUID IN A CLEANING ZONE; SUBJECTING SAID OBJECTS TO ULTRASONIC VIBRATIONS FOR A DEFINITE TIME INTERVAL WHILE IMMERSED IN A CLEANING LIQUID FLOWING AROUND SAID OBJECTS; INCREASING THE RATE OF FLOW OF SAID CLEANING LIQUID AND DISCONTINUING THE ULTRASONIC VIBRATION TO FLUSH SAID OBJECTS FREE OF THE ULTRASONICALLY LOOSENED CONTAMINATION; AND SPRAY RINSING SAID OBJECTS WHILE DRAINING SAID CLEANING LIQUID FROM THE CLEANING ZONE.
Claim 2
Independent Claim
78 words
A METHOD FOR CLEANING OBJECTS WHICH COMPRISES IMMERSING SAID OBJECTS IN A FLOWING CLEANING LIQUID IN A CLEANING ZONE; SUBJECTING SAID OBJECTS TO ULTRASONIC VIBRATIONS FOR A DEFINITE TIME INTERVAL WHILE IMMERSED IN A CLEANING LIQUID FLOWING AROUND SAID OBJECTS; INCREASING THE RATE OF FLOW OF SAID CLEANING LIQUID AND DISCONTINUING THE ULTRASONIC VIBRATION TO FLUSH SAID OBJECTS FREE OF THE ULTRASONICALLY LOOSENED CONTAMINATION; AND SPRAY RINSING SAID OBJECTS WHILE DRAINING SAID CLEANING LIQUID FROM THE CLEANING ZONE.
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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) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |