US4266845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient contact member of jack for use in conjunction with a pin-plug
Assignee: IIZUKA ELECTRIC IND CO Ltd
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Filing: 1979-08-30
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Granted: 1981-05-12
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Expires: 1999-08-30
Abstract
Abstract A resilient contact member to be installed in a jack for use in conjunction with a pin-plug comprising a fixed leg portion to be fixed to an inner wall of a housing of the jack, a movable leg portion having a portion which is to be engaged with a pin portion of the pin-plug inserted into the jack to make an electrical connection between the jack and pin-plug, a substantially U-shaped portion for connecting the fixed and movable leg portions to each other at their one ends, said fixed and movable leg portions extending in parallel with each other, and a projection integrally formed with the fixed leg portion or the movable leg portion and extending toward the movable leg portion or the fixed leg portion. The projection has such a length that the movable leg portion could not be displaced beyond an elastic limit of the U-shaped portion. The fixed and movable leg portions, U-shaped portion and projection are all formed integrally with each other by punching a thin metal plate.
Inventors
- 👤 Kazuhiro Ishikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:21
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/02; H01R13/26; H01R13/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
173 words
A resilient contact member of an electrical jack for use in conjunction with a pin-plug comprising: a fixed leg portion for securing the contact member to a housing of the jack; a movable leg portion extending substantially in parallel with a fixed leg portion and including a semicircularly bent portion projecting in a direction opposite to the fixed leg portion; a substantially U-shaped portion for coupling one end of the fixed and one end of the movable leg portions with each other; and a projection extending from the fixed leg portion toward the semicircularly bent portion of the movable leg portion and having such a length that an excessive deformation of the movable leg portion can be prevented by an engagement of a free end of the projection with the semicircularly bent portion of the movable leg portion; wherein said fixed leg portion, movable leg portion, U-shaped portion and projection are integrally formed by punching a metal plate and said movable leg portion is resiliently bent in a plane of the metal plate.
Claim 2
Dependent Claim
173 words
A resilient contact member of an electrical jack for use in conjunction with a pin-plug comprising: a fixed leg portion for securing the contact member to a housing of the jack; a movable leg portion extending substantially in parallel with a fixed leg portion and including a semicircularly bent portion projecting in a direction opposite to the fixed leg portion; a substantially U-shaped portion for coupling one end of the fixed and one end of the movable leg portions with each other; and a projection extending from the fixed leg portion toward the semicircularly bent portion of the movable leg portion and having such a length that an excessive deformation of the movable leg portion can be prevented by an engagement of a free end of the projection with the semicircularly bent portion of the movable leg portion; wherein said fixed leg portion, movable leg portion, U-shaped portion and projection are integrally formed by punching a metal plate and said movable leg portion is resiliently bent in a plane of the metal plate.
Claim 3
Dependent Claim
29 words
A resilient contact member according to claim 1, wherein said projection is formed as a semicircular sector which has a contour corresponding to that of the semicircularly bent portion.
Claim 4
Dependent Claim
168 words
A resilient contact member of an electrical jack for use in conjunction with a pin-plug comprising: a fixed leg portion for securing the contact member to a housing of the jack; a movable leg portion extending substantially in parallel with the fixed leg portion and including a semicircularly bent portion projecting in a direction opposite to the fixed leg portion; a substantially U-shaped portion for coupling one end of the fixed and one end of the movable leg portions with each other; and a projection extending from the semicircularly bent portion of the movable leg portion toward the fixed leg portion and having such a length that an excessive deformation of the movable leg portion can be prevented by an engagement of the free end of the projection with the fixed leg portion; wherein said fixed leg portion, movable leg portion, U-shaped portion and projection are integrally formed by punching a metal plate and said movable leg portion is resiliently bent in a plane of the metal plate.
Claim 5
Dependent Claim
168 words
A resilient contact member of an electrical jack for use in conjunction with a pin-plug comprising: a fixed leg portion for securing the contact member to a housing of the jack; a movable leg portion extending substantially in parallel with the fixed leg portion and including a semicircularly bent portion projecting in a direction opposite to the fixed leg portion; a substantially U-shaped portion for coupling one end of the fixed and one end of the movable leg portions with each other; and a projection extending from the semicircularly bent portion of the movable leg portion toward the fixed leg portion and having such a length that an excessive deformation of the movable leg portion can be prevented by an engagement of the free end of the projection with the fixed leg portion; wherein said fixed leg portion, movable leg portion, U-shaped portion and projection are integrally formed by punching a metal plate and said movable leg portion is resiliently bent in a plane of the metal plate.
Claim 6
Dependent Claim
37 words
A resilient contact member according to any of claims 1 and 3, wherein said projection is formed as a rod-like strip which extends substantially in parallel with a direction of the deformation of the movable leg portion.
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) | 1984-05-11 | 1984-11-10 | 1985-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-11 | 1988-11-10 | 1989-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-11 | 1992-11-10 | 1993-05-12 | $7700.00 | Window Closed / Lapsed |