Patent US4556276A successfully refreshed from Google Patents.
US4556276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solder beams leads
Assignee: Nokia Bell Labs
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Filing: 1983-05-06
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Granted: 1985-12-03
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Expires: 2003-05-06
Abstract
Abstract A solder bearing hybrid integrated circuit terminal 16 is formed from a metal strip so that one finger 26 of the clip portion 18 is formed by the strip being folded back on itself. A second opposing finger 28 spaced from the first finger 26 includes in its end portion a slot 30 which extends around the free end of the finger 28 to form a solder preform clamp 34 by a reverse curving of the metal strip about the free end of the second finger 28. A stem 20 extends from the clip 18 opposite and parallel to the direction of the fingers 26, 28. This permits clearer access to the substrate 12 to which the terminal 16 is assembled and soldered. The stem 20 may later be bent at right angles to the substrate 12 for assembling the finished device 44 to a circuit board. Stop tab 36 are provided at the bottom of the recess between the fingers 26,28 for spacing the edge of the substrate 12 from the metal strip which forms the clip 18 of the terminal 16.
Inventors
- 👤 Hazen Curtis, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:46
CPC Classifications
H; H01; H01R; H01R12/00; H01R12/50; H01R12/51; H01R12/55; H01R12/57; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/3405; H05K2201/00; H05K2201/10; H05K2201/10227; H05K2201/10386; H05K2201/10613; H05K2201/10954; H05K2201/10984
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
213 words
a solder-bearing terminal of the type having a clip and a stem formed by a flat metal strip, the clip having first and second opposing resilient clamping fingers spaced from each other to form a receiving gap opening for the edge of a circuit substrate to be connected to the terminal, the free end portions of the fingers being arcuately curved outward, away from each other, and the stem extending from the clip with a pin section suited for connection to a circuit board, the first finger is formed by a section of the strip which is folded back on itself so that the first finger of the clip is at least twice the thickness of the strip, the folded back strip portion of said first finger being bent around the bottom of the clip to extend as a stem from below the bottom of, and in a direction generally parallel to, the second finger, and the second finger includes an end portion which is arcuately reverse curved from the free end to form a clamp for holding a piece of solder, the end portion of the second finger comprising a centrally disposed slot which extends from that portion of the free end closest to the first finger around the free end portion.
Claim 2
Dependent Claim
213 words
a solder-bearing terminal of the type having a clip and a stem formed by a flat metal strip, the clip having first and second opposing resilient clamping fingers spaced from each other to form a receiving gap opening for the edge of a circuit substrate to be connected to the terminal, the free end portions of the fingers being arcuately curved outward, away from each other, and the stem extending from the clip with a pin section suited for connection to a circuit board, the first finger is formed by a section of the strip which is folded back on itself so that the first finger of the clip is at least twice the thickness of the strip, the folded back strip portion of said first finger being bent around the bottom of the clip to extend as a stem from below the bottom of, and in a direction generally parallel to, the second finger, and the second finger includes an end portion which is arcuately reverse curved from the free end to form a clamp for holding a piece of solder, the end portion of the second finger comprising a centrally disposed slot which extends from that portion of the free end closest to the first finger around the free end portion.
Claim 3
Dependent Claim
52 words
The terminal defined in claim 1 wherein the stem comprises two substantially right angle bends in opposite directions, one below each of the fingers, and extends from the side of the clip below the second finger in a direction generally parallel with and opposite to the direction in which the fingers extend.
Claim 4
Dependent Claim
56 words
The terminal defined in claim 2 comprising a spacer tab extending from at least one edge of the strip at the bottom of the receiving gap and bent toward the opening of the gap to maintain a predetermined clearance between the bottom of the gap opening and a substrate edge which is to be inserted therein.
Claim 5
Dependent Claim
17 words
The terminal defined in claim 3 comprising a cylindrical segment of solder resiliencey held in the clamp.
Claim 6
Dependent Claim
20 words
The terminal defined in claim 4 wherein the stem includes a widened section between the clip and the pin section.
Claim 7
Dependent Claim
23 words
The terminal defined in claim 5 wherein the slot is about one-third as wide as the metal strip portion which forms the clamp.
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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) | 1988-12-02 | 1989-06-03 | 1989-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-02 | 1993-06-03 | 1993-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-02 | 1997-06-03 | 1997-12-03 | $7700.00 | Window Closed / Lapsed |