US4955820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
T-leg SMT contact
Assignee: Molex LLC
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Filing: 1989-12-07
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Granted: 1990-09-11
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Expires: 2009-12-07
Abstract
Abstract Disclosed is a surface-mounted component's contact having an inverted "T"-shaped soldering portion. The contact is to be mounted to the surface of a printed circuit board, and is to be electrically connected to a conductor on the printed circuit board by soldering its soldering portion to the conductor. The soldering portion comprises a flat foot and a leg, which is integrally connected to and rising from the midportion of said foot. The relatively large foot has an effect of causing substantial reduction of the load per unit of solder upon application of an undesired force to the terminal, and of increasing the resistivity of the solder against removal from the conductor of the printed circuit board.
Inventors
- 👤 Shoji Yamada
- 👤 Tomoo Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:39
CPC Classifications
H; H01; H01R; H01R12/00; H01R12/50; H01R12/51; H01R12/55; H01R12/57; H01R4/00; H01R4/02; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/341; H05K3/3421; H05K3/3426; H01R12/70; H01R12/71; H01R12/72; H01R12/73; H01R12/735; H01R12/737; H05K2201/00; H05K2201/10; H05K2201/10613; H05K2201/10742; H05K2201/1075; H05K2201/10818; Y; Y02; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
84 words
Surface-mounted component's contact having a soldering portion, which contact is to be mounted to the surface of a printed circuit board 6 and is to be electrically connected to a conductor, characterized in that said soldering portion 12 comprises a flat foot 17 and a leg 18, which is integrally connected to and rising from the midportion of said foot 17, generally shaped in the form of an inverted "T", said soldering portion 12 being a metal piece made by stamping a metal blank.
Claim 2
Dependent Claim
84 words
Surface-mounted component's contact having a soldering portion, which contact is to be mounted to the surface of a printed circuit board 6 and is to be electrically connected to a conductor, characterized in that said soldering portion 12 comprises a flat foot 17 and a leg 18, which is integrally connected to and rising from the midportion of said foot 17, generally shaped in the form of an inverted "T", said soldering portion 12 being a metal piece made by stamping a metal blank.
Claim 3
Dependent Claim
52 words
Surface-mounted component's contact according to claim 1 wherein said flat foot 17 of said soldering portion 12 is rectangular, and said leg 18 is integrally connected to the midportion of said rectangular foot to rise upright therefrom, said leg 18 having a width equal to the short side of said rectangular foot.
Claim 4
Dependent Claim
37 words
Surface-mounted component's contact according to claim 1 wherein said leg 18 is integrally connected to a trunk 13 which is integrally connected to a contact piece 14, thereby constituting together a terminal 11 of an electric connector.
Claim 5
Dependent Claim
48 words
Surface-mounted component's contact according to claim 3 wherein said trunk 13 has an arm 16 extending parallel to said contact piece 14 and integrally connected to said trunk 13, said extending arm 16 being adapted to be inserted in a selected slot 15 of an elongated body 4.
Claim 6
Dependent Claim
48 words
Surface-mounted component's contact according to claim 4 wherein said soldering portion 12 comprising said flat, rectangular foot 17 and said leg 18, said trunk 13, said contact piece 14 and said extended arm 16 are integrally connected together in a unitary form stamped out from a metal sheet.
Claim 7
Dependent Claim
47 words
Surface-mounted component's contact according to claim 2 wherein a pair of terminals 11 each stamped out from a metal sheet are arranged with their contact pieces 14 facing each other at a predetermined interval, and their feet soldered to a conductor on said printed circuit board 6.
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) | 1993-09-10 | 1994-03-12 | 1994-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-10 | 1998-03-12 | 1998-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-10 | 2002-03-12 | 2002-09-11 | $7700.00 | Window Closed / Lapsed |