US4229063A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure terminal for use with aluminum wire
Assignee: Yazaki Corp
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Filing: 1978-12-15
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Granted: 1980-10-21
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Expires: 1998-12-15
Abstract
Abstract A pressure terminal for use with aluminum electric wire is formed with inwardly folded contact portions provided with pointed projections having an elasticity in the direction perpendicular to the axial direction, thereby securing a substantially constant pressure between the aluminum conductor and the terminal even in the presence of changes in strain and stress and, at the same time, preventing the reproduction of oxide films on the contacting surfaces of the conductor and terminal after connecting the terminal and the electric wire.
Inventors
- 👤 Masaaki Yoshizawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:36
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/58; H01R4/62; H01R4/10; H01R4/18; H01R4/183; H01R4/184; H01R4/28; H01R4/48
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
97 words
A pressure terminal for use with aluminum electric wire formed of a metal having a hardness characteristic greater than aluminum, comprising an electric contact portion and a pressure-connecting portion, wherein at least one inwardly folded contact plate portion is provided inside said pressure-connecting portion and said inwardly folded contact plate portion is provided with at least one incision circumferentially extending from its inside portion, said incision being defined by two side portions, each said side portions forming a ridge having an elasticity in a direction perpendicular to the axial direction thereby adapted to clampingly bite the wire.
Claim 2
Dependent Claim
97 words
A pressure terminal for use with aluminum electric wire formed of a metal having a hardness characteristic greater than aluminum, comprising an electric contact portion and a pressure-connecting portion, wherein at least one inwardly folded contact plate portion is provided inside said pressure-connecting portion and said inwardly folded contact plate portion is provided with at least one incision circumferentially extending from its inside portion, said incision being defined by two side portions, each said side portions forming a ridge having an elasticity in a direction perpendicular to the axial direction thereby adapted to clampingly bite the wire.
Claim 3
Dependent Claim
19 words
A pressure terminal as claimed in claim 1, wherein each incision is deepest in the lower or innermost end.
Claim 4
Dependent Claim
24 words
A pressure terminal as claimed in claim 1 wherein mirror-image inwardly folded contact plate portions are provided on opposite sides of a longitudinal centerline.
Claim 5
Dependent Claim
53 words
A pressure terminal for use with aluminum electric wire according to claim 1, wherein a plurality of said pointed projections are provided in such a manner that those projections at a farther site from said electrical contact portion are formed smaller than those projections at a nearer site to said electrical contact portion.
Claim 6
Dependent Claim
24 words
A pressure terminal as claimed in claim 4 wherein mirror-image inwardly folded contact plate portions are provided on opposite sides of a longitudinal centerline.
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) | 1983-10-21 | 1984-04-21 | 1984-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-21 | 1988-04-21 | 1988-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-21 | 1992-04-21 | 1992-10-21 | $7700.00 | Window Closed / Lapsed |