Patent US4848948A successfully refreshed from Google Patents.
Patent US5957737A successfully refreshed from Google Patents.
US5957737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connection portion of contact
Assignee: DDK Ltd
•
Filing: 1997-12-22
•
Granted: 1999-09-28
•
Expires: 2017-12-22
Abstract
Abstract A connection portion of a contact for use in an electrical connector or the like. The connection portion is in the form of a substantially U-shaped groove, to which is connected an exposed conductor of an electric wire. The connection portion includes on both sides bending pieces forming the walls of the U-shaped groove and asymmetrically arranged. With this construction, a relatively deep and wide groove of the connection portion is obtained even if the contact itself is small.
Inventors
- 👤 Kazuyuki Ozai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:57
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/10; H01R4/18; H01R4/183; H01R4/184; H01R13/00; H01R13/646; H01R13/6473; H01R13/6474; H01R4/02; H01R4/023; H01R43/00; H01R43/16
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
162 words
An electrical terminal having a connection portion of a deformable contact which is in a form of a substantially U-shaped groove defined by an interconnection of a pair of side walls between which is positioned an exposed conductor of an electric wire, wherein said side walls include bending portions above the U-shaped groove of the connection portion and are asymmetrically formed with respect to a longitudinal center line of said connection portion and wherein each of said bending portions are trapezoidal in shape, a shorter portion of the one trapezoidal bending portion is opposite to a longer base of the other trapezoidal bending portion at one end of the U-shaped groove and the shorter base of the other trapezoidal bending portion is opposite to the longer base of the other trapezoidal bending portion at the other end of the U-shaped groove, whereby to enhance a gripping function of the connection portion to the conductor by a diagonal grip line across the conductor.
Claim 2
Dependent Claim
162 words
An electrical terminal having a connection portion of a deformable contact which is in a form of a substantially U-shaped groove defined by an interconnection of a pair of side walls between which is positioned an exposed conductor of an electric wire, wherein said side walls include bending portions above the U-shaped groove of the connection portion and are asymmetrically formed with respect to a longitudinal center line of said connection portion and wherein each of said bending portions are trapezoidal in shape, a shorter portion of the one trapezoidal bending portion is opposite to a longer base of the other trapezoidal bending portion at one end of the U-shaped groove and the shorter base of the other trapezoidal bending portion is opposite to the longer base of the other trapezoidal bending portion at the other end of the U-shaped groove, whereby to enhance a gripping function of the connection portion to the conductor by a diagonal grip line across the conductor.
Claim 3
Dependent Claim
139 words
A connection portion of a contact which is in a form of a substantially U-shaped groove within which is positioned an exposed conductor of an electric wire, and including deformable bending pieces defining the U-shaped groove of the connection portion which are asymmetrically formed and are deformed toward each other along a longitudinal axis of the contact to contain the conductor therebetween, and wherein each of said bending pieces forms a part of a rhomboid defining a U-shaped groove therebetween, and wherein each rhomboid portion includes a highest portion located at one end of the U-shaped groove, and the highest portion of the other rhombic portion is opposite to a lowest rhombic portion of the other bending piece, whereby to enhance a gripping function of the connection portion to the conductor by a diagonal grip line across the conductor.
Claim 4
Dependent Claim
139 words
A connection portion of a contact which is in a form of a substantially U-shaped groove within which is positioned an exposed conductor of an electric wire, and including deformable bending pieces defining the U-shaped groove of the connection portion which are asymmetrically formed and are deformed toward each other along a longitudinal axis of the contact to contain the conductor therebetween, and wherein each of said bending pieces forms a part of a rhomboid defining a U-shaped groove therebetween, and wherein each rhomboid portion includes a highest portion located at one end of the U-shaped groove, and the highest portion of the other rhombic portion is opposite to a lowest rhombic portion of the other bending piece, whereby to enhance a gripping function of the connection portion to the conductor by a diagonal grip line across the conductor.
Claim 5
Dependent Claim
77 words
The connection portion of a contact as defined by claim 2, wherein said bending pieces each forms a part of a rhomboid defining a U-shaped groove therebetween and which when deformed to enclose said conductor will define a pair of complementary longitudinal edges extending along an axis angularly related to the longitudinal axis of said conductor, whereby to enhance the gripping function of the connection portion to the conductor by the diagonal grip line across the conductor.
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) | 2002-09-27 | 2003-03-29 | 2003-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-09-27 | 2007-03-29 | 2007-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-09-27 | 2011-03-29 | 2011-09-28 | $7700.00 | Window Closed / Lapsed |