US3928064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for cleaning plate-shaped objects
Assignee: Uddeholms AB
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Filing: 1974-07-11
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Granted: 1975-12-23
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Expires: 1994-07-11
Abstract
Abstract In cleaning plate-shaped objects a tub is filled with a cleaning liquid and contains a plurality of troughs mounting brushes for cleaning the objects. At least some of the brushes are arranged in pairs, with each brush of a pair rotating in the opposite direction. The plate-shaped objects are conveyed across and above the tub and the brushes are arranged so that the periphery of each brush extends above the top of the tub and contacts the objects to clean them. By rotating each brush of a pair in opposite directions, a meniscus of cleaning liquid is formed between them that contacts the objects and aids in cleaning them.
Inventors
- 👤 Kurt Anders Holm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:30
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/22; H05K3/26; H05K2203/00; H05K2203/02; H05K2203/0257; H05K2203/07; H05K2203/0736; H05K2203/075; H05K2203/0779; H05K2203/0783; H05K2203/15; H05K2203/1509
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
125 words
A METHOD OF CLEANING PLATE-SHAPED OBJECTS BY MOVING THE OBJECTS PAST A TUB CONTAINING A CLEANING LIQUID AND HAVING A PLURALITY OF BRUSHES MOUNTED THEREIN, COMPRISING CONVEYING THE PLATE-SHAPED OBJECTS ACROSS AND ABOVE THE TUB, SERIALLY ARRANGING THE BRUSHES IN THE TUB ALONG THE PATH OF MOVEMENT OF THE OBJECTS WITH AT LEAST CERTAIN OF THE BRUSHES DISPOSED IN PAIRS AND PARTIALLY IMMERSED IN THE CLEANING LIQUID, POSITIONING THE PERIPHERY OF THE BRUSHES ABOVE THE TOP OF THE TUB SO AS TO COME INOT CONTACT WITH THE PLATE-SHAPED OBJECTS, AND ROTATING ONE BRUSH OF A PAIR IN THE OPPOSITE DIRECTION AS THE ROTATION OF THE OTHER BRUSH OF THE PAIR, SO AS TO FORM A MENISCUS THEREBETWEEN CONTACTING THE SURFACE OF THE OBJECT BEING CLEANED.
Claim 2
Independent Claim
125 words
A METHOD OF CLEANING PLATE-SHAPED OBJECTS BY MOVING THE OBJECTS PAST A TUB CONTAINING A CLEANING LIQUID AND HAVING A PLURALITY OF BRUSHES MOUNTED THEREIN, COMPRISING CONVEYING THE PLATE-SHAPED OBJECTS ACROSS AND ABOVE THE TUB, SERIALLY ARRANGING THE BRUSHES IN THE TUB ALONG THE PATH OF MOVEMENT OF THE OBJECTS WITH AT LEAST CERTAIN OF THE BRUSHES DISPOSED IN PAIRS AND PARTIALLY IMMERSED IN THE CLEANING LIQUID, POSITIONING THE PERIPHERY OF THE BRUSHES ABOVE THE TOP OF THE TUB SO AS TO COME INOT CONTACT WITH THE PLATE-SHAPED OBJECTS, AND ROTATING ONE BRUSH OF A PAIR IN THE OPPOSITE DIRECTION AS THE ROTATION OF THE OTHER BRUSH OF THE PAIR, SO AS TO FORM A MENISCUS THEREBETWEEN CONTACTING THE SURFACE OF THE OBJECT BEING CLEANED.
Claim 3
Dependent Claim
82 words
The method according to claim 1, further comprising, dividing the tub into a plurality of troughs each mounting at least one brush, spraying the plate-shaped objects with cleaning liquid from the troughs at the beginning and end of the path of movement of the objects above the tub so that the spray contacts the opposite side of the object from the sides contacted by the brushes, and drying the plate-shaped objects after the completion of their paths of movement over the tub.
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) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |