Patent US3656492A successfully refreshed from Google Patents.
US3656492A
Expired / Lapsed
US
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Apparatus for steam degreasing
Assignee: Uddeholms AB
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Filing: 1970-03-20
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Granted: 1972-04-18
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Expires: 1990-03-20
Abstract
Abstract Oily articles are degreased by being immersed into the vapour of a boiling solvent, such as trichloroethylene. Immediately after the articles have entered into said vapour they are exposed to a powerful jet of oily solvent. Said oily solvent jet removes foreign particles adhering to the surface of the articles.
Inventors
- 👤 Kurt Anders Holm
- 👤 Rune Einar Hansson
- 👤 Bengt Gunnar Berglund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:08
CPC Classifications
C; C23; C23G; C23G5/00; C23G5/02; C23G5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
Apparatus as claimed in claim 1 wherein said spray means are disposed from about 100 mm. to 300 mm. below the upper surface of the vapor zone.
Claim 2
Dependent Claim
26 words
Apparatus as claimed in claim 1 and further comprising a filter means for removing solid contaminants from the oily solvent being pumped to said spray means.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |