US3783440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical connector
Assignee: Hitachi Cable Ltd
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Filing: 1972-05-30
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Granted: 1974-01-01
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Expires: 1992-05-30
Abstract
Abstract An electrical connector for connection to a lead wire comprising at least one terminal including a male or female contact portion at one end thereof, a resilient bellmouth-shaped portion interposed between the contact portion and the end of the terminal adapted for connection to the lead wire, and an engaging portion; and a connector body including a terminal-receiving aperture with its internal surface partly or wholly tapered and a portion for holding the terminal by engagement with the engaging portion of the terminal; the engaging portion of the terminal being inserted into the terminal-receiving aperture to such an extent as to engage with the holding portion, the bellmouthshaped portion of the terminal being resiliently pressed against the internal surface of the tapered portion thereby to support the electrical connector.
Inventors
- 👤 S Karube
- 👤 Y Hamada
- 👤 Y Suganuma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:52
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/40; H01R13/42; H01R13/428; H01R13/46; H01R13/50
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
204 words
An electrical connector comprising at least one terminal having a substantially tubular shape with a narrow gap extending longitudinally from one end to the other end thereof, said at least one terminal including a contact portion at one end, a resilient bellmouth-shaped portion formed at a middle portion and at least one resilient hook positioned at a smaller-diameter side of said bellmouth-shaped portion, said at least one hook projecting radially from said bellmouth-shaped portion; and a connector body including at least one internal bore for receiving said terminal, said at least one bore having a tapered portion with a circular cross-section on at least a part of the internal surface of the bore, said tapered portion decreasing in diameter uniformly in the radial direction along its axis from a largerdiameter end and a holding portion disposed at a smaller-diameter end of said tapered portion, said terminal being inserteD into said bore from the larger-diameter end of said tapered portion to such an extent that said hook passes said smaller-diameter end of said tapered portion, such that said hook is held by said holding portion and said bellmouth shaped portion is resiliently pressed in a surface contact against the internal surface of said tapered portion.
Claim 2
Dependent Claim
204 words
An electrical connector comprising at least one terminal having a substantially tubular shape with a narrow gap extending longitudinally from one end to the other end thereof, said at least one terminal including a contact portion at one end, a resilient bellmouth-shaped portion formed at a middle portion and at least one resilient hook positioned at a smaller-diameter side of said bellmouth-shaped portion, said at least one hook projecting radially from said bellmouth-shaped portion; and a connector body including at least one internal bore for receiving said terminal, said at least one bore having a tapered portion with a circular cross-section on at least a part of the internal surface of the bore, said tapered portion decreasing in diameter uniformly in the radial direction along its axis from a largerdiameter end and a holding portion disposed at a smaller-diameter end of said tapered portion, said terminal being inserteD into said bore from the larger-diameter end of said tapered portion to such an extent that said hook passes said smaller-diameter end of said tapered portion, such that said hook is held by said holding portion and said bellmouth shaped portion is resiliently pressed in a surface contact against the internal surface of said tapered portion.
Claim 3
Dependent Claim
23 words
An electrical connector according to claim 1, wherein said contact portion includes one of a male contact portion and a female contact portion.
Claim 4
Dependent Claim
29 words
An electrical connector according to claim 1, wherein said at least one resilient hook is formed of a resilient finger having one end extending outwardly from said bellmouth-shaped portion.
Claim 5
Dependent Claim
37 words
An electrical connector according to claim 1, wherein at least one resilient finger extending outwardly from a larger-diameter side of said bellmouth-shaped portion is provided to obtain resilient contact with the internal surface of said tapered portion.
Claim 6
Dependent Claim
30 words
An electrical connector according to claim 1, wherein at least one protrusion is formed on said bellmouth-shaped portion to provide resilient contact with the internal surface of said tapered portion.
References Cited (Backward Citations)
US2359634A
Cited
US3178673A
Cited
US3543226A
Cited
US3474398A
Cited
US3659254A
Cited
US3588789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |