US5082460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical terminal with frangible mounting leg and method of forming the same
Assignee: Zierick Manufacturing Corp
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Filing: 1990-12-31
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Granted: 1992-01-21
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Expires: 2010-12-31
Abstract
Abstract A solid single leg terminal includes an electrical conductor end portion at one end and an opposing substantially solid mounting end portion for mounting through a whole other printed circuit board. The mounting end portion forms an elongate mounting leg of substantially uniform cross-section and defines a longitudinal axis. The mounting leg is dimensioned to be substantially fully receivable within the whole from one side of the printed circuit board through to the other side of the printed circuit board. At least one elongate indentation is provided in the mounting end portion substantially parallel to the longitudinal axis to facilitate splitting of the mounting leg along the indentation into two half leg portions and splaying same into abutment against the other side of the printed circuit board to secure the position of the terminal on the printed circuit board. A method of forming the terminals is also described.
Inventors
- 👤 Janos Legrady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:51
CPC Classifications
H; H01; H01R; H01R12/00; H01R12/50; H01R12/51; H01R12/55; H01R12/58; H01R13/00; H01R13/40; H01R13/405; H01R13/415; H01R43/00; H01R43/20; H01R43/205; H05; H05K; H05K3/00; H05K3/30; H05K3/306; H05K3/308; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
151 words
A solid single leg terminal comprising an electrical conductor end portion at one end and an opposing substantially solid mounting end portion for mounting through a hole of a printed circuit board, said mounting end portion forming an elongated mounting leg of substantially uniform cross-section and defining a longitudinal axis, said mounting leg being dimensioned to be substantially freely receivable within the hole from one side of the printed circuit board through to the other side of the printed circuit board, two indentations being provided on opposite sides of said mounting end portion substantially parallel to the longitudinal axis and each defining a frangible line substantially parallel to the longitudinal axis, said frangible lines of said indentations together comprising a frangible web of minimum thickness material, each of said indentations having triangular cross-sections of decreasing dimensions in the direction of said connector end portion in planes normal to said longitudinal axis.
Claim 2
Dependent Claim
151 words
A solid single leg terminal comprising an electrical conductor end portion at one end and an opposing substantially solid mounting end portion for mounting through a hole of a printed circuit board, said mounting end portion forming an elongated mounting leg of substantially uniform cross-section and defining a longitudinal axis, said mounting leg being dimensioned to be substantially freely receivable within the hole from one side of the printed circuit board through to the other side of the printed circuit board, two indentations being provided on opposite sides of said mounting end portion substantially parallel to the longitudinal axis and each defining a frangible line substantially parallel to the longitudinal axis, said frangible lines of said indentations together comprising a frangible web of minimum thickness material, each of said indentations having triangular cross-sections of decreasing dimensions in the direction of said connector end portion in planes normal to said longitudinal axis.
Claim 3
Dependent Claim
25 words
A terminal as defined in claim 1, wherein said elongate mounting leg has a substantially uniform rectangular cross-section in planes normal to said longitudinal axis.
Claim 4
Dependent Claim
12 words
A terminal as defined in claim 2, wherein said cross-section is square.
Claim 5
Dependent Claim
41 words
A terminal as defined in claim 1, further comprising at least one central shoulder intermediate said connector and mounting end portions serving as a stop to limit excessive passage through and fix the position of said mounting leg within the hole.
Claim 6
Dependent Claim
19 words
A terminal as defined in claim 4, wherein two central shoulders are provided on opposite sides of the terminal.
Claim 7
Dependent Claim
31 words
A terminal as defined in claim 5, wherein a plurality of terminals are connected at said central shoulders to provide a continuous carrier strip from which individual terminals can be severed.
Claim 8
Dependent Claim
23 words
A terminal as defined in claim 1, wherein frangible lines of opposite indentations are aligned in a common plane parallel to said axis.
Claim 9
Dependent Claim
29 words
A terminal as defined in claim 1, wherein frangible lines of opposite indentations are offset from each other in relation to a plane of symmetry passing through said axis.
Claim 10
Dependent Claim
52 words
A terminal as defined in claim 1, wherein the hole in the printed circuit board defines a circular ridge in said one side of the printed circuit board, further comprising intermediate abutment portions on said mounting leg for positioning and aligning said mounting leg in a position to be split and splayed.
Claim 11
Dependent Claim
23 words
A terminal as defined in claim 9, wherein said abutment portions comprising, outwardly tapered seats arranged on opposite sides of said mounting leg.
Claim 12
Dependent Claim
54 words
A terminal as defined in claim 1, further comprising lead-in coins at the free ends of said mounting leg to reduce the cross-sectional area of said mounting leg at the portion thereof first entering the hole of the printed circuit board thereby facilitating the guidance and insertion of said mounting leg into the hole.
Claim 13
Dependent Claim
18 words
A terminal as defined in claim 11, wherein said lead in coins comprise a plurality of tapered surfaces.
Claim 14
Dependent Claim
47 words
A terminal as defined in claim 1, wherein said indentations are formed in opposite surfaces of said mounting end portion having pre-determined widths and having maximum width dimensions in said surfaces of said mounting leg which are within the range of approximately 25%-35% of said predetermined width.
Claim 15
Dependent Claim
36 words
A terminal as defined in claim 1, wherein the concentrated stresses between said indentations is greater than the yield strength and just below the ultimate tensile strength of the material at the hardest cold worked state.
Claim 16
Dependent Claim
28 words
A terminal as defined in claim 1, wherein said mounting leg has an octagonal cross-section to facilitate insertion thereof into a circular hole of a printed circuit board.
Claim 17
Dependent Claim
59 words
A terminal as defined in claim 1, wherein a plurality of like terminals are provided connected end-to-end, each two adjacent terminals being connected at a frangible connecting portion sufficiently flexible to permit the coiling of a string or series of terminals on a spool on which said terminals can be stored and from which the terminals can be dispensed.
Claim 18
Independent Claim
79 words
A method of coining a solid single leg terminal having a rectangular cross-section comprising the steps of pre-coining a pair of opposite surfaces of the leg with substantially V-shaped indentations substantially aligned along a line normal to said opposite leg surfaces; deepening said indentations while supporting the other pair of opposite surfaces to prevent widening of the leg, said indentations being formed about said normal line; and pressing any resulting bulging to produce a leg of substantially rectangular cross-section.
Claim 19
Independent Claim
79 words
A method of coining a solid single leg terminal having a rectangular cross-section comprising the steps of pre-coining a pair of opposite surfaces of the leg with substantially V-shaped indentations substantially aligned along a line normal to said opposite leg surfaces; deepening said indentations while supporting the other pair of opposite surfaces to prevent widening of the leg, said indentations being formed about said normal line; and pressing any resulting bulging to produce a leg of substantially rectangular cross-section.
Claim 20
Dependent Claim
52 words
A method as defined in claim 17, wherein said step of deepening comprises the step of forming the indentations to produce stresses between the two opposite coined indentations higher than the yield strength of the terminal material just below the ultimate tensile strength of the material at the hardest cold worked state.
Claim 21
Dependent Claim
21 words
A method as defined in claim 17, further comprising the step of shearing pre-coined portions from a continuous strip of material.
Claim 22
Independent Claim
95 words
A method of coining a solid single leg terminal having a rectangular cross-section comprising the steps of precoining a pair of opposite surfaces of the leg with substantially V-shaped indentations each offset to a side of a line normal to said opposite leg surfaces; depending said indentations while supporting the other pair of opposite surfaces to prevent widening of the leg, said indentations being formed on opposite sides of said normal line; and pressing any resulting bulging to produce a leg of substantially rectangular cross-section whereby said indentations are formed assymetrically about said normal line.
Claim 23
Independent Claim
95 words
A method of coining a solid single leg terminal having a rectangular cross-section comprising the steps of precoining a pair of opposite surfaces of the leg with substantially V-shaped indentations each offset to a side of a line normal to said opposite leg surfaces; depending said indentations while supporting the other pair of opposite surfaces to prevent widening of the leg, said indentations being formed on opposite sides of said normal line; and pressing any resulting bulging to produce a leg of substantially rectangular cross-section whereby said indentations are formed assymetrically about said normal line.
References Cited (Backward Citations)
US2811702A
Cited
US2914745A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-01-20 | 1995-07-22 | 1996-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-20 | 1999-07-22 | 2000-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-20 | 2003-07-22 | 2004-01-21 | $7700.00 | Window Closed / Lapsed |