Patent US4540233A successfully refreshed from Google Patents.
US4540233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Female electrical terminal having improved contactor block structure
Assignee: Sumitomo Wiring Systems Ltd
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Filing: 1984-08-29
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Granted: 1985-09-10
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Expires: 2004-08-29
Abstract
Abstract A single sheet material is punched and bent to form an improved female terminal comprising a contactor block including a resilient contact piece a bottom plate and an upper plate having an extension bent toward the bottom plate to form a protective guide tag at an end opening of the contactor block through which a male terminal is inserted into the contactor block. The protective guide tag corrects insertion posture of the male terminal, thereby preventing degradation in resiliency of the resilient contact piece of the contactor block and improving electrical connection between the male terminal and the female terminal.
Inventors
- 👤 Eiji Saijo
- 👤 Shigekazu Wakata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:57
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/02; H01R13/10; H01R13/11
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
88 words
A female terminal fabricated by bending a single sheet material comprising: a contactor block having an end opening through which a male terminal is inserted into said contactor block so as to make contact therewith, said contactor block including an upper plate, a bottom plate, and side plates; a resilient contact piece disposed between said upper plate and bottom plate; and a protective guide tag formed of an extension of said upper plate which is bent, at said end opening of said contactor block, toward said bottom plate.
Claim 2
Dependent Claim
88 words
A female terminal fabricated by bending a single sheet material comprising: a contactor block having an end opening through which a male terminal is inserted into said contactor block so as to make contact therewith, said contactor block including an upper plate, a bottom plate, and side plates; a resilient contact piece disposed between said upper plate and bottom plate; and a protective guide tag formed of an extension of said upper plate which is bent, at said end opening of said contactor block, toward said bottom plate.
Claim 3
Dependent Claim
30 words
A female terminal according to claim 1, wherein said resilient contact piece takes the form of a cantilever having a stationary end at said end opening of said contactor block.
Claim 4
Dependent Claim
26 words
A female terminal according to claim 2, wherein said resilient contact piece in the form of the cantilever is arcuately curved to oppose said bottom plate.
Claim 5
Dependent Claim
36 words
A female terminal according to claim 2, wherein said upper plate has a rear spring portion having a free end which overlaps a free end of said resilient contact piece in the form of the cantilever.
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) | 1988-09-09 | 1989-03-11 | 1989-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-09 | 1993-03-11 | 1993-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-09 | 1997-03-11 | 1997-09-10 | $7700.00 | Window Closed / Lapsed |