Patent US3887904A successfully refreshed from Google Patents.
US3887904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire mass termination
Assignee: Electronic Memories and Magnetics Corp
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Filing: 1973-08-22
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Granted: 1975-06-03
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Expires: 1993-08-22
Abstract
Abstract Electrical wires extending through magnetic cores on a circuit board are fixed near their ends to the board by projecting portions of the wires through holes in the board to form wire loops in the holes, and retaining the loops in place temporarily prior to soldering them in place. Temporary retention of the wire loops can be accomplished with retainers mounted on the lower side of the board, each retainer being a sheet-like portion of conductive material with a large diameter central hole and a pair of narrow slits extending in opposite directions from the central hole. A plunger forces the wires down through the holes in the board and the central hole in the retainer, while the wires are maintained in tension, so that the wires enter the slits in the retainer and are captured therein. In another method, the wire loops are held by adhesive or are bent over to temporarily hold them in place.
Inventors
- 👤 Niels Krag
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:48
CPC Classifications
G; G11; G11C; G11C5/00; G11C5/12; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49069; Y10T29/49117; Y10T29/49124; Y10T29/49155; Y10T29/49162; Y10T29/49165
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
73 words
A circuit assembly comprising: an insulating board having a Plurality of holes; a pad of conductive material surrounding each of said holes in the board, each pad having a slit with a portion lying within the boundary of a corresponding hole; a plurality of electrical devices mounted on said board; a plurality of wires coupled to said electrical devices and extending over a face of the board and through said holes and slits.
Claim 2
Dependent Claim
73 words
A circuit assembly comprising: an insulating board having a Plurality of holes; a pad of conductive material surrounding each of said holes in the board, each pad having a slit with a portion lying within the boundary of a corresponding hole; a plurality of electrical devices mounted on said board; a plurality of wires coupled to said electrical devices and extending over a face of the board and through said holes and slits.
Claim 3
Dependent Claim
73 words
A circuit assembly comprising: an insulating board having a Plurality of holes; a pad of conductive material surrounding each of said holes in the board, each pad having a slit with a portion lying within the boundary of a corresponding hole; a plurality of electrical devices mounted on said board; a plurality of wires coupled to said electrical devices and extending over a face of the board and through said holes and slits.
Claim 4
Dependent Claim
73 words
A circuit assembly comprising: an insulating board having a Plurality of holes; a pad of conductive material surrounding each of said holes in the board, each pad having a slit with a portion lying within the boundary of a corresponding hole; a plurality of electrical devices mounted on said board; a plurality of wires coupled to said electrical devices and extending over a face of the board and through said holes and slits.
Claim 5
Dependent Claim
36 words
The assembly described in claim 1 including: solder disposed in the holes and on the conductive pads, the solder being disposed also about the wire portions extending through the slits to hold the wires in place.--
Claim 6
Dependent Claim
134 words
A circuit comprising: an insulating board having a plurality of holes; a plurality of electrical devices mounted on said board; a plurality of wires coupled to said devices and extending over a first face of the board; a plurality of electrically conductive retainers, each including a thin sheet of electrically conductive material with a hole therein aligned with the hole in said insulating board, said hole in said retainer including a first portion of a width larger than the diameter of said wires and a narrow slit extending from at least one side of the first hole portion at a region which lies within the boundaries of one of said holes in the board; each of said wires passing through one of said holes in the board and through a slit in a retainer.
Claim 7
Dependent Claim
134 words
A circuit comprising: an insulating board having a plurality of holes; a plurality of electrical devices mounted on said board; a plurality of wires coupled to said devices and extending over a first face of the board; a plurality of electrically conductive retainers, each including a thin sheet of electrically conductive material with a hole therein aligned with the hole in said insulating board, said hole in said retainer including a first portion of a width larger than the diameter of said wires and a narrow slit extending from at least one side of the first hole portion at a region which lies within the boundaries of one of said holes in the board; each of said wires passing through one of said holes in the board and through a slit in a retainer.
Claim 8
Dependent Claim
23 words
The circuit assembly described in claim 3 wherein: said slits in the retainers are of smaller width than the diameter of said wires.
Claim 9
Dependent Claim
14 words
The circuit assembly described in claim 3 wherein: said slits have a sinuous form.
Claim 10
Dependent Claim
34 words
The circuit assembly described in claim 3 including: a quantity of solder joining each of said wires to its respective retainer at the location where the wire passes through the slit in the retainer.
Claim 11
Dependent Claim
96 words
The circuit assembly described in claim 3 wherein: each retainer hole has a pair of slits, said pair of slits extending from opposite sides of the first hole portion of the retainer, and the wire passing down through one of said slits, around a return loop, up through the other slit and up through the hole in the board, said slits being narrower than the wire passing therethrough to retain the wire in place, and including a quantity of solder joining said wire to the retainer at the locations where the wire passes through the slits.
Claim 12
Dependent Claim
106 words
A magnetic core assembly comprising: an insulative substrate having a plurality of holes; a plurality of magnetic cores mounted on a first face of said substrate; a plurality of wires extending through different sets of said cores and through said holes in said substrate; and a plurality of electrically conductive retainers mounted on said substrate, each having a hole with a first portion larger than the cross section of said wire and aligned with a hole in the substrate, and each retainer hole having a narrow slit extending therefrom; each of said wires extending through a hole in the substrate and through one of the slits.
Claim 13
Dependent Claim
106 words
A magnetic core assembly comprising: an insulative substrate having a plurality of holes; a plurality of magnetic cores mounted on a first face of said substrate; a plurality of wires extending through different sets of said cores and through said holes in said substrate; and a plurality of electrically conductive retainers mounted on said substrate, each having a hole with a first portion larger than the cross section of said wire and aligned with a hole in the substrate, and each retainer hole having a narrow slit extending therefrom; each of said wires extending through a hole in the substrate and through one of the slits.
Claim 14
Dependent Claim
98 words
The circuit assembly described in claim 8 wherein: each hole in a retainer has a pair of slits, said pair of slits extending from opposite sides of the first hole portion of the retainer, and the wire passing down through one of said slits, around a return loop, up through the other slit and up through the hole in the board, said slits being narrower than the wire passing therethrough to retain the wire in place, and including a quantity of solder joining said wire to the retainer at each location where the wire passes through a slit.
Claim 15
Dependent Claim
108 words
The circuit assembly described in claim 8 including: a printed circuit on the second face of the substrate, said printed circuit including a plurality of thin conductors extending to positions near the holes in the substrate; and a sheet-like retainer carrier with a first face disposed against a second face of the substrate, said retainers mounted on a second face of the carrier opposite the first face thereof, and each retainer having an end portion extending beyond an edge of the carrier and bent around the edge so its extreme end lies against the first carrier face and against one of said thin conductors of the printed circuit.
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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |