US4453916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for fusion of electrodeposited coating of printed-circuit boards
Assignee: Individual
•
Filing: 1982-07-12
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Granted: 1984-06-12
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Expires: 2002-07-12
Abstract
Abstract There is proposed a device for fusion of electrodeposited coatings of printed-circuit boards, comprising a means to impart a desired direction to the flow of a heat-transfer agent, and a mechanism for traversing the boards being handled. According to the invention, said means to impart a desired direction to the flow of the heat-transfer agent is made as a chamber having an inlet and an outlet for the heat-transfer agent to come in and come out, respectively, and openings for the boards to pass across the direction of flow of the heat-transfer agent, while the traversing mechanism is accommodated inside the chamber.
Inventors
- 👤 Anatoly A. Osipov
- 👤 Vladimir V. Pomazkov
- 👤 Nikolai S. Pekov
- 👤 Anatoly S. Dubovik
- 👤 Mikhail F. Tregubenko
- 👤 Jury L. Shvorobei
- 👤 Grigory I. Dashevsky
- 👤 Vladimir A. Iovlev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:55
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/012; B23K1/015; B23K3/00; B23K3/04; H; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/3494; H05K2203/00; H05K2203/04; H05K2203/043; H05K2203/07; H05K2203/0756; H05K2203/0776; H05K3/3465; H05K3/3473
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
178 words
A device for fusion of electrodeposited coatings on printed circuit boards, comprising a receptacle containing a heat transfer medium; means for conveying flow of the heat transfer medium out of said receptacle; means for imparting a desired flow direction to the heat transfer medium, comprising a chamber provided with first inlet and outlet openings for the heat transfer medium to pass through said chamber in the desired flow direction, and further provided with second inlet and outlet openings for the boards to pass through said chamber, said first and second openings situated to define substantially transverse directions of passage of the heat transfer medium and of the boards through said chamber; and means for conveying the boards through said chamber, comprising cooperatively acting top and bottom roll means, said bottom roll means comprising means for conveying the boards substantially transversely relative to the direction of heat transfer medium flow, and said top roll means mounted for movement in a direction substantially vertically, to allow boards of different thicknesses to pass between said respective top and bottom roll means.
Claim 2
Independent Claim
178 words
A device for fusion of electrodeposited coatings on printed circuit boards, comprising a receptacle containing a heat transfer medium; means for conveying flow of the heat transfer medium out of said receptacle; means for imparting a desired flow direction to the heat transfer medium, comprising a chamber provided with first inlet and outlet openings for the heat transfer medium to pass through said chamber in the desired flow direction, and further provided with second inlet and outlet openings for the boards to pass through said chamber, said first and second openings situated to define substantially transverse directions of passage of the heat transfer medium and of the boards through said chamber; and means for conveying the boards through said chamber, comprising cooperatively acting top and bottom roll means, said bottom roll means comprising means for conveying the boards substantially transversely relative to the direction of heat transfer medium flow, and said top roll means mounted for movement in a direction substantially vertically, to allow boards of different thicknesses to pass between said respective top and bottom roll means.
Claim 3
Dependent Claim
30 words
The device of claim 1, wherein opposite walls of said chamber are provided with vertical slots to receive axes of said top roll means for rotational and vertical movement thereof.
Claim 4
Dependent Claim
40 words
The device of claim 2, wherein said top roll means comprises a plurality of roll discs mounted for rotational and vertical movement to prevent leakage of the heat transfer medium from said chamber when boards of varying thicknesses pass therethrough.
Claim 5
Dependent Claim
24 words
The device of claim 3, wherein said discs defining said top roll means are loosely mounted on the axes of said top roll means.
Claim 6
Dependent Claim
14 words
The device of claim 4, wherein clearances are provided between respective axes and discs.
Claim 7
Dependent Claim
29 words
The device of claim 1, wherein said second openings lie in a plane passing through a line of contact of said top roll means and said bottom roll means.
References Cited (Backward Citations)
US2433094A
Cited
US4306857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-12 | 1987-12-12 | 1988-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-12 | 1991-12-12 | 1992-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-12 | 1995-12-12 | 1996-06-12 | $7700.00 | Window Closed / Lapsed |