US3685148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making a wire splice
Assignee: Individual
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Filing: 1970-03-20
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Granted: 1972-08-22
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Expires: 1990-03-20
Abstract
Abstract U-shaped staples of brass strip are crimped about two insulated magnet wires in a die by a ram. The die has a bottom wall and two side walls, and is otherwise open. The bottom wall has a ridge spacedly intermediate the side walls and two concavely arcuate face portions whose axes of curvature are parallel to the ridge, and which connect the same to the side walls. The front face of the ram is convex and cylindrically arcuate about an axis perpendicular to the afore-mentioned axes of curvature. When two magnet wires are placed on the two face portions of the bottom wall and the ram drives a staple into the die cavity, the staple is crimped about the two wires, and ultimately a recess conforming to the front face of the ram is pressed into a face of the crimped staple, causing the metal of the staple and of the crimped wire sections to flow longitudinally of the ridge in the bottom wall, thereby breaking the relatively brittle insulation of the wires and providing direct electrical contact between the connector formed from the staple and the wire ends.
Inventors
- 👤 Jack Garfinkel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:12
CPC Classifications
H; H01; H01R; H01R43/00; H01R43/04; H01R43/048; H01R43/0482; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49194; Y10T29/49201; Y10T29/49202; Y10T29/53; Y10T29/5313; Y10T29/532; Y10T29/53209; Y10T29/53213; Y10T29/53235
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
285 words
A method of splicing two elongated metallic conductors having each a longitudinal axis which comprises: a. juxtaposing respective axial portions of said conductors in a die cavity having a bottom wall and two side walls in a position in which said conductors are contiguously adjacent said bottom wall, the bottom wall being of arcuate cross section, 1. one of said conductors carrying a coating of insulating material, 2. said cavity being open longitudinally of said conductors and having a side open in a direction away from said bottom wall and transverse to the axes of said conductors in said respective portions thereof, 3. said open side being bounded by said side walls; b. driving a staple-shaped, metallic connector member in a direction inward of said open side by means of a ram, 1. said connector member having two leading edge portions respectively following the contour of said side walls and of said bottom wall during said driving and being each formed with ribs and grooves elongated in respective planes transverse to said axes and having sharp edges directed toward said conductor portions during said driving, 2. said sharp edges cutting said coating during said driving, 3. the driving force of said ram being sufficient to clamp said connector member about said portions in a substantially closed loop; and c. further driving said ram in said inward direction until the respective thicknesses of said connector member and of said portions of said conductors in said loop are reduced between said ram and said bottom wall, and the length of said portion of said one conductor is increased sufficiently to disrupt said coating and to establish direct metal-to-metal contact between said one conductor and said connector member.
Claim 2
Independent Claim
285 words
A method of splicing two elongated metallic conductors having each a longitudinal axis which comprises: a. juxtaposing respective axial portions of said conductors in a die cavity having a bottom wall and two side walls in a position in which said conductors are contiguously adjacent said bottom wall, the bottom wall being of arcuate cross section, 1. one of said conductors carrying a coating of insulating material, 2. said cavity being open longitudinally of said conductors and having a side open in a direction away from said bottom wall and transverse to the axes of said conductors in said respective portions thereof, 3. said open side being bounded by said side walls; b. driving a staple-shaped, metallic connector member in a direction inward of said open side by means of a ram, 1. said connector member having two leading edge portions respectively following the contour of said side walls and of said bottom wall during said driving and being each formed with ribs and grooves elongated in respective planes transverse to said axes and having sharp edges directed toward said conductor portions during said driving, 2. said sharp edges cutting said coating during said driving, 3. the driving force of said ram being sufficient to clamp said connector member about said portions in a substantially closed loop; and c. further driving said ram in said inward direction until the respective thicknesses of said connector member and of said portions of said conductors in said loop are reduced between said ram and said bottom wall, and the length of said portion of said one conductor is increased sufficiently to disrupt said coating and to establish direct metal-to-metal contact between said one conductor and said connector member.
Claim 3
Dependent Claim
34 words
said cavity being open longitudinally of said conductors and having a side open in a direction away from said bottom wall and transverse to the axes of said conductors in said respective portions thereof,
Claim 4
Dependent Claim
34 words
said cavity being open longitudinally of said conductors and having a side open in a direction away from said bottom wall and transverse to the axes of said conductors in said respective portions thereof,
Claim 5
Dependent Claim
9 words
said sharp edges cutting said coating during said driving,
Claim 6
Dependent Claim
9 words
said sharp edges cutting said coating during said driving,
Claim 7
Dependent Claim
50 words
A method as set forth in claim 1, which further comprises extruding a portion of the metal of said connector member between said ram and one of said side walls toward said open side during said further driving of said ram until a rib is formed on said connector member.
Claim 8
Dependent Claim
23 words
A method as set forth in claim 1, wherein said insulating material is substantially less ductile than the metal of said one conductor.
Claim 9
Dependent Claim
89 words
the driving force of said ram being sufficient to clamp said connector member about said portions in a substantially closed loop; and c. further driving said ram in said inward direction until the respective thicknesses of said connector member and of said portions of said conductors in said loop are reduced between said ram and said bottom wall, and the length of said portion of said one conductor is increased sufficiently to disrupt said coating and to establish direct metal-to-metal contact between said one conductor and said connector member.
Claim 10
Dependent Claim
89 words
the driving force of said ram being sufficient to clamp said connector member about said portions in a substantially closed loop; and c. further driving said ram in said inward direction until the respective thicknesses of said connector member and of said portions of said conductors in said loop are reduced between said ram and said bottom wall, and the length of said portion of said one conductor is increased sufficiently to disrupt said coating and to establish direct metal-to-metal contact between said one conductor and said connector member.
Claim 11
Dependent Claim
29 words
said open side being bounded by said side walls; b. driving a staple-shaped, metallic connector member in a direction inward of said open side by means of a ram,
Claim 12
Dependent Claim
29 words
said open side being bounded by said side walls; b. driving a staple-shaped, metallic connector member in a direction inward of said open side by means of a ram,
Claim 13
Dependent Claim
39 words
A method as set forth in claim 2, wherein the reduction in the thickness of said connector member is greatest in an axially central part of the connector member and decreases from said central part in both axial directions.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |