US4442316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crimp connector for electrical wires
Assignee: 3M Co
•
Filing: 1981-11-03
•
Granted: 1984-04-10
•
Expires: 2001-11-03
Abstract
Abstract A crimp connector for electrical wires has two chambers formed from a unitary piece of sheet metal, one chamber for magnet wires and one chamber for connecting wires. Each chamber is formed by a bridge part and a row of a plurality of fingers which depend from the bridge part essentially radially with respect to the axis of the connector and are essentially circularly bent around the bridge part.
Inventors
- 👤 Joerg H. W. Thuermer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:02
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/24; H01R4/2495; H01R4/10; H01R4/18
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
133 words
A crimp connector for electrical wires for interconnecting at least one magnet wire and at least one connecting wire, comprising a unitary piece of sheet metal having a bridge part and a row of a plurality of fingers which depend from the bridge part radially of the axis of the connector, said fingers being bent circularly around the bridge part to form two chambers disposed side by side, one of said chambers being formed to accommodate a said magnet wire and the other chamber being formed to accommodate a said connecting wire, at least the magnet wire chamber having cutting means provided on its interior surface for cutting through insulation on a said magnet wire upon compression of the chamber to make electrical connection with the electrically conductive core of the magnet wire.
Claim 2
Dependent Claim
133 words
A crimp connector for electrical wires for interconnecting at least one magnet wire and at least one connecting wire, comprising a unitary piece of sheet metal having a bridge part and a row of a plurality of fingers which depend from the bridge part radially of the axis of the connector, said fingers being bent circularly around the bridge part to form two chambers disposed side by side, one of said chambers being formed to accommodate a said magnet wire and the other chamber being formed to accommodate a said connecting wire, at least the magnet wire chamber having cutting means provided on its interior surface for cutting through insulation on a said magnet wire upon compression of the chamber to make electrical connection with the electrically conductive core of the magnet wire.
Claim 3
Dependent Claim
33 words
The connector according to claim 1 wherein the fingers extend from their root portions around the bridge part and define both chambers, one on each of the two sides of the bridge part.
Claim 4
Dependent Claim
26 words
The connector according to claim 2 wherein the fingers depend from two opposite edges of the bridge part and are arranged in a mutually staggered pattern.
Claim 5
Dependent Claim
20 words
The connector according to claim 3 wherein the magnet wire chamber is bordered by the root portions of the fingers.
Claim 6
Dependent Claim
24 words
The connector in accordance with claim 2 or 3 wherein the fingers are bent off from the bridge part towards the same side thereof.
Claim 7
Dependent Claim
22 words
The connector in accordance with claim 2 or wherein the fingers are alternatively bent from the bridge part towards opposite sides thereof.
Claim 8
Dependent Claim
19 words
The connector in accordance with claim 1 wherein each said chamber is provided with at least three said fingers.
Claim 9
Dependent Claim
18 words
The connector according to claim 7 wherein each said chamber is provided with five to eight said fingers.
Claim 10
Dependent Claim
21 words
The connector in accordance with claim 1 wherein the cross-sections of the chambers increase towards the entrance area of the lines.
Claim 11
Dependent Claim
19 words
The connector in accordance with claim 1 wherein the cutting means are provided at least on the bridge part.
References Cited (Backward Citations)
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Cited
US3688245A
Cited
US3715705A
Cited
US3814836A
Cited
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Cited
US3916085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-04-10 | 1987-10-10 | 1988-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-10 | 1991-10-10 | 1992-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-10 | 1995-10-10 | 1996-04-10 | $7700.00 | Window Closed / Lapsed |