US4431247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated terminal and module
Assignee: 3M Co
•
Filing: 1982-04-23
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Granted: 1984-02-14
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Expires: 2002-04-23
Abstract
Abstract An electrical terminal having a supporting body, a transversely perforate cap, and an enclosed tubular contact member having a bifurcate contact element in line with a wire cutting edge. Contact is established and excess wire removed by a twisting motion applied to the cap. Modular cross connect structure employing such terminals is described.
Inventors
- 👤 Sherif Abdullah
- 👤 Gary A. Baribeau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:20
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/24; H01R4/2416; H01R4/242; H01R4/2437; H01R4/2441
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
108 words
An electrical terminal comprising: a cylindrical contact member having an open longitudinal seam, transversely slotted from one side of said seam to form and isolate an open mouthed bifurcate contact element, having a concavity at the other side of said seam opposite said element and forming with said open mouth a wire entry passage, and a perforate opposite said wire entry passage to form a wire exit passage having a wire cutting edge; and a cap member rotatably associated with said cylindrical member and channeled in line with said passages for receiving a wire and forcing said wire into said contact element and against said wire cutting edge.
Claim 2
Dependent Claim
108 words
An electrical terminal comprising: a cylindrical contact member having an open longitudinal seam, transversely slotted from one side of said seam to form and isolate an open mouthed bifurcate contact element, having a concavity at the other side of said seam opposite said element and forming with said open mouth a wire entry passage, and a perforate opposite said wire entry passage to form a wire exit passage having a wire cutting edge; and a cap member rotatably associated with said cylindrical member and channeled in line with said passages for receiving a wire and forcing said wire into said contact element and against said wire cutting edge.
Claim 3
Dependent Claim
27 words
Terminal of claim 1 wherein said cap is enlarged and chamfered at the wire entry end of said transverse perforations for facilitating insertion of a wire end.
Claim 4
Dependent Claim
32 words
Terminal of claim 1 wherein said contact member includes a contact tab extending across the central axis beneath said wire passages and said cap is axially perforate in alignment with said tab.
Claim 5
Dependent Claim
26 words
Terminal of claim 1 wherein said contact member is rigidly supported within a body member and includes a second contact member extending from said body member.
Claim 6
Dependent Claim
30 words
Terminal of claim 4 wherein is included means for restricting rotation of said cap to the degree necessary to establish electrical connection with an inserted wire while severing excess wire.
Claim 7
Dependent Claim
11 words
Terminal of claim 4 wherein said second contact member is bifurcate.
Claim 8
Dependent Claim
36 words
Terminal of claim 6 wherein said terminal is a unit of a modular structure containing a plurality of said terminals disposed in rows and columns with the body members being combined in a unitary base structure.
Claim 9
Dependent Claim
29 words
Terminal of claim 7 wherein each said terminal is preconnected to a separate segment of insulated wire at its said second contact member and all said connections are sealed.
References Cited (Backward Citations)
US4283104A
Cited
US4283105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-13 | 1987-08-15 | 1988-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-13 | 1991-08-15 | 1992-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-13 | 1995-08-15 | 1996-02-14 | $7700.00 | Window Closed / Lapsed |