Patent US3042553A successfully refreshed from Google Patents.
US3042553A
Expired / Lapsed
US
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Method of and apparatus for cleaning tanks of vehicles
Assignee: Detrex Corp
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Filing: 1959-10-20
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Granted: 1962-07-03
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Expires: 1979-10-20
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Kearney
- 👤 Bruce A Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:45
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/08; B08B9/093; B08B9/0933
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
IN A METHOD OF INTERNALLY CLEANING RECEPTACLES USED IN STORING, TRANSPORTING OR PROCESSING COMMODITIES SUCH AS OILS, GREASE, CRUDE PETROLEUM PRODUCTS, PETROLEUM ASPHALT AND THE LIKE, THE STEPS WHICH COMPRISE CONTINUOUSLY BOILING IN A VAPOR GENERATOR A CHLORINATED HYDROCARBON SOLVENT SELECTED FROM THE GROUP CONSISTING OF TRICHLORETHYLENE, PERCHLORETHYLENE AND METHYLENE CHLORIDE, CONTINUOUSLY INTRODUCING THE HOT VAPORS SO GENERATED INTO A RECEPTACLE TO BE CLEANED AND ALLOWING SAID VAPORS TO DISSOLVE ADHERING MATTER FROM THE INNER SURFACE OF SAID RECEPTACLE, CONTINUOUSLY CONDUCTING UNCONDENSED VAPORS AND ANY AIR INCIDENTALLY MIXED THEREWITH FROM THE TOP OF SAID RECEPTACLE, CONTINOUSLY COOLING THE GASEOUS MIXTURE REMOVED FROM THE RECEPTACLE TO CONDENSE THE SOLVENT VAPORS THEREFROM AND THEN EXHAUSTING THE AIR TO THE ATMOSPHERE, REMOVING ENTRAINED WATER FROM THE SOLVENT SO CONDENSED, THEN CONTINUOUSLY RETURNING THE SOLVENT SO RECOVERED TO SAID VAPOR GENERATOR FOR RE-USE IN CLEANING AND FINALLY PASSING UNHEATED OUTSIDE AIR THROUGH THE TANK IN PURGE IT OF SOLVENT ODORS AND REMOVING THE REMAINING TRACES OF SOLVENT VAPOR FROM THE AIR BEFORE RELEASING THE AIR TO THE ATMOSPHERE.
Claim 2
Dependent Claim
174 words
IN A METHOD OF INTERNALLY CLEANING RECEPTACLES USED IN STORING, TRANSPORTING OR PROCESSING COMMODITIES SUCH AS OILS, GREASE, CRUDE PETROLEUM PRODUCTS, PETROLEUM ASPHALT AND THE LIKE, THE STEPS WHICH COMPRISE CONTINUOUSLY BOILING IN A VAPOR GENERATOR A CHLORINATED HYDROCARBON SOLVENT SELECTED FROM THE GROUP CONSISTING OF TRICHLORETHYLENE, PERCHLORETHYLENE AND METHYLENE CHLORIDE, CONTINUOUSLY INTRODUCING THE HOT VAPORS SO GENERATED INTO A RECEPTACLE TO BE CLEANED AND ALLOWING SAID VAPORS TO DISSOLVE ADHERING MATTER FROM THE INNER SURFACE OF SAID RECEPTACLE, CONTINUOUSLY CONDUCTING UNCONDENSED VAPORS AND ANY AIR INCIDENTALLY MIXED THEREWITH FROM THE TOP OF SAID RECEPTACLE, CONTINOUSLY COOLING THE GASEOUS MIXTURE REMOVED FROM THE RECEPTACLE TO CONDENSE THE SOLVENT VAPORS THEREFROM AND THEN EXHAUSTING THE AIR TO THE ATMOSPHERE, REMOVING ENTRAINED WATER FROM THE SOLVENT SO CONDENSED, THEN CONTINUOUSLY RETURNING THE SOLVENT SO RECOVERED TO SAID VAPOR GENERATOR FOR RE-USE IN CLEANING AND FINALLY PASSING UNHEATED OUTSIDE AIR THROUGH THE TANK IN PURGE IT OF SOLVENT ODORS AND REMOVING THE REMAINING TRACES OF SOLVENT VAPOR FROM THE AIR BEFORE RELEASING THE AIR TO THE ATMOSPHERE.
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) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |