Patent US3874769A successfully refreshed from Google Patents.
US3874769A
Expired / Lapsed
US
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Spring contact for establishing electric plug-in connections
Assignee: Individual
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Filing: 1973-04-03
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Granted: 1975-04-01
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Expires: 1993-04-03
Abstract
Abstract A spring contact for establishing electric plug-in connections which is punched out, as a flat metal portion, from a metal strip and can further be processed by bending of special parts to be shaped into an electric contact for being disposed in a housing made of insulating material. The punched out portion in the punched out state comprises a fastening portion for being bent into the shape of a claw for mechanically fastening and electrically connecting a cable end, an adjoining holding portion for mounting the contact in the insulating housing, and a contact portion for being bent into the shape of a spring contact which can provide an electrical contact with other electric components, the contact portion having two spring arms each extending in the punched out state on two sides of the longitudinal axis and at an angle relative thereto and having such a length that they extend beyond said holding portion. The punched out portion in the punched out state is a single piece, or is connected in a symmetrical manner with an outer punched out portion to form one double piece, the spring arms extending symmetrically into opposite directions, or is linked with further punched out portions to form a chain, being one-piece connected via its holding portion, or if necessary via an intermediate link, with the fastening portion of the following punched out portion.
Inventors
- 👤 Hans Simon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:49
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/02; H01R13/10; H01R13/11; H01R13/112
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
219 words
For use in establishing electrical connections, an electrically conductive body of unitary sheet material having a substantially flat base portion terminating at one end in a hook means for engaging a shoulder or the like of an insulating member, said body of sheet material having a pair of springy contact arms both of which have elongated fixed free end regions distant from said hook means, said fixed free end regions of said contact arms being integral with said base portion and bent at substantially right angles thereto, and said fixed free end regions of said contact arms diverging away from each other in a direction toward said hook means situating said fixed free end regions closest to each other at their extremities which are most distant from said hook means, and said springy contact arms respectively having elongated flexible portions separate from said base portion and extending from and beyond said fixed free end regions, said flexible portions having next to said fixed free end regions converging regions which are inclined toward each other in a direction opposite to the direction of inclination of said fixed free end regions of said contact arms, and said flexible portions having beyond said converging regions thereof elongated movable free end regions bent toward each other backwardly with respect to said converging regions.
Claim 2
Dependent Claim
219 words
For use in establishing electrical connections, an electrically conductive body of unitary sheet material having a substantially flat base portion terminating at one end in a hook means for engaging a shoulder or the like of an insulating member, said body of sheet material having a pair of springy contact arms both of which have elongated fixed free end regions distant from said hook means, said fixed free end regions of said contact arms being integral with said base portion and bent at substantially right angles thereto, and said fixed free end regions of said contact arms diverging away from each other in a direction toward said hook means situating said fixed free end regions closest to each other at their extremities which are most distant from said hook means, and said springy contact arms respectively having elongated flexible portions separate from said base portion and extending from and beyond said fixed free end regions, said flexible portions having next to said fixed free end regions converging regions which are inclined toward each other in a direction opposite to the direction of inclination of said fixed free end regions of said contact arms, and said flexible portions having beyond said converging regions thereof elongated movable free end regions bent toward each other backwardly with respect to said converging regions.
Claim 3
Dependent Claim
23 words
The combination of claim 1 and wherein said movable free end regions of said contact arms are situated between said converging regions thereof.
Claim 4
Dependent Claim
23 words
The combination of claim 1 and wherein said converging regions of said contact arms are situated between said movable free end regions thereof.
Claim 5
Dependent Claim
97 words
The combination of claim 1 and wherein said elongated base portion has a transverse line of symmetry extending across said base portion substantially at said extremities of said fixed free end regions of said contact arms where said fixed free end regions are located closest to each other, and the structure on one side of said line of symmetry forming a mirror image of structure on the other side thereof so that said base portion has opposed ends respectively provided with a pair of said hook means and is connected with two pairs of said contact arms.
Claim 6
Dependent Claim
46 words
The combination of claim 1 and wherein said base portion has beyond said fixed free end regions of said contact arms a conductor claw means for engaging a conductor and beyond said conductor claw means an insulation claw means for engaging insulation which surrounds the conductor.
Claim 7
Dependent Claim
54 words
The combination of claim 1 and wherein said movable free end regions of said flexible portions of said springy contact arms are situated between said converging regions thereof and terminate inwardly beyond said converging regions closely adjacent to the fixed free end regions of said contact arms which are integral with said base portion.
Claim 8
Dependent Claim
47 words
The combination of claim 1 and wherein each of said flexible portions of each springy contact arm is formed with a longitudinal slit dividing each flexible portion into a pair of flexible sections extending from said fixed free end region which is integral with said base portion.
Claim 9
Dependent Claim
60 words
The combination of claim 1 and wherein said movable free end regions of said flexible portions of said springy contact arms are situated between said converging regions thereof and respectively have lateral projections to be received in notches formed in opposed side edges of a contact blade which is received between the movable free end regions of said flexible portions.
Claim 10
Dependent Claim
39 words
The combination of claim 1 and wherein an insulating means receives said body of sheet material and has a pair of cam means for engaging said flexible portions of said springy contact arms and camming them toward each other.
Claim 11
Dependent Claim
23 words
The combination of claim 9 and wherein said camming means engages said converging regions of said flexible portions of said springy contact arms.
Claim 12
Dependent Claim
45 words
The combination of claim 9 and wherein said insulating means includes a pair of stop portions for engaging parts of said flexible portions of said springy contact arms where they are bent backwardly to limit axial movement of the sheet material in said insulating means.
Claim 13
Dependent Claim
62 words
The combination of claim 1 and wherein said body of sheet material has in line with said hook means but distant therefrom, beyond said free end regions of said arms which are integral with said base portion, a conductor claw means for engaging a conductor and beyond said conductor claw means an insulation claw means for engaging insulation which surrounds the conductor.
Claim 14
Dependent Claim
85 words
The combination of claim 1 and wherein said base portion has beyond said extremities of said free end regions of said arms which are integral with said base portion a conductor claw means for engaging a conductor and an insulation claw means situated beyond said conductor claw means for engaging insulation which surrounds a conductor, said conductor claw means and insulation claw means being in line with each other and being arranged perpendicularly with respect to a line passing midway between said springy contact arms.
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) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |