US4846202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for cleaning or chemical treatment or workpieces
Assignee: Bayer Pharma AG
•
Filing: 1988-02-22
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Granted: 1989-07-11
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Expires: 2008-02-22
Abstract
Abstract A device for cleaning or chemically treating workpieces, particularly printed circuit boards with solutions applied to the workpieces by nozzles comprises a two-part housing, the lower portion of which is supplied with a treatment solution and is communicated with the upper part which is subdivided into two chambers by a separating wall. Each chamber is limited from the upper wall of the housing by a flat perforated wall through which the solution flows to the nozzles formed by elongated slots.
Inventors
- 👤 Manfred Kallweit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:45
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/0085; H05K3/0088; H05K3/0011; H05K3/0055; H05K2203/00; H05K2203/07; H05K2203/0736; H05K2203/0746; Y; Y10; Y10S; Y10S134/00; Y10S134/902
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
166 words
A device for cleaning or chemically treating parts with solutions applied to a surface being treated, comprising an upper housing part which is elongated in a direction of elongation and provided with nozzles applying a solution to the surface being treated; a lower housing part which is also elongated in said direction of elongation and positioned under said upper housing part, said lower housing part being supplied with said solution and communicating with an interior of said upper housing part, said upper housing part including an upper wall formed with said nozzles, said lower housing part having an uninterrupted interior while said upper housing part is provided with a separating wall extending in said direction of elongation subdividing said interior of said upper housing part into two chambers, and perforated plane partitions each positioned in a respective chamber to limit the same from said upper wall, said nozzles being formed by two elongated slots provided in said upper wall and extending in said direction of elongation.
Claim 2
Independent Claim
166 words
A device for cleaning or chemically treating parts with solutions applied to a surface being treated, comprising an upper housing part which is elongated in a direction of elongation and provided with nozzles applying a solution to the surface being treated; a lower housing part which is also elongated in said direction of elongation and positioned under said upper housing part, said lower housing part being supplied with said solution and communicating with an interior of said upper housing part, said upper housing part including an upper wall formed with said nozzles, said lower housing part having an uninterrupted interior while said upper housing part is provided with a separating wall extending in said direction of elongation subdividing said interior of said upper housing part into two chambers, and perforated plane partitions each positioned in a respective chamber to limit the same from said upper wall, said nozzles being formed by two elongated slots provided in said upper wall and extending in said direction of elongation.
Claim 3
Dependent Claim
24 words
The device as defined in claim 1, wherein said slots angularly widen towards an upper face of said upper wall to form angular jets.
Claim 4
Independent Claim
168 words
A device for cleaning or chemically treating printed circuit boards with solutions applied to a surface being treated, comprising an upper housing part which is elongated in a direction of elongation and provided with nozzles applying a solution to the surface being treated; a lower housing part which is also elongated in said direction of elongation and positioned under said upper housing part, said lower housing part being supplied with said solution and communicating with an interior of said upper housing part, said upper housing part including an upper wall formed with said nozzles, said lower housing part having an uninterrupted interior while said upper housing part is provided with a separating wall extending in said direction of elongation subdividing said interior of said upper housing part into two chambers, and perforated plane partitions each positioned in a respective chamber to limit the same from said upper wall, said nozzles being formed by two elongated slots provided in said upper wall and extending in said direction of elongation.
Claim 5
Independent Claim
168 words
A device for cleaning or chemically treating printed circuit boards with solutions applied to a surface being treated, comprising an upper housing part which is elongated in a direction of elongation and provided with nozzles applying a solution to the surface being treated; a lower housing part which is also elongated in said direction of elongation and positioned under said upper housing part, said lower housing part being supplied with said solution and communicating with an interior of said upper housing part, said upper housing part including an upper wall formed with said nozzles, said lower housing part having an uninterrupted interior while said upper housing part is provided with a separating wall extending in said direction of elongation subdividing said interior of said upper housing part into two chambers, and perforated plane partitions each positioned in a respective chamber to limit the same from said upper wall, said nozzles being formed by two elongated slots provided in said upper wall and extending in said direction of elongation.
Claim 6
Dependent Claim
24 words
The device as defined in claim 3, wherein said slots angularly widen towards an upper face of said upper wall to form angular jets.
Claim 7
Dependent Claim
19 words
The device as defined in claim 4, wherein said slots extend along the entire length of said upper wall.
Claim 8
Dependent Claim
23 words
The device as defined in claim 4, wherein said slots also widen in the direction towards the interior of said upper housing part.
Claim 9
Dependent Claim
32 words
The device as defined in claim 3, wherein each partition has a plurality of holes positioned along said separating wall, said separating wall being disposed centrally longitudinally of said upper housing part.
Claim 10
Dependent Claim
19 words
The device as defined in claim 3, wherein said upper housing part and said lower housing part are box-shaped.
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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) | 1992-07-10 | 1993-01-09 | 1993-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-10 | 1997-01-09 | 1997-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-10 | 2001-01-09 | 2001-07-11 | $7700.00 | Window Closed / Lapsed |