US5014419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Twisted wire jumper electrical interconnector and method of making
Assignee: MEDALLION TEHNOLOGY LLC
•
Filing: 1989-05-04
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Granted: 1991-05-14
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Expires: 2009-05-04
Abstract
Abstract A method and apparatus for interconnecting electronic circuit boards through the use of twisted wire jumpers which are formed from multifilament wire and which have enlarged bird cages formed along the pins. The pins are drawn through a stack of circuit boards to position the cages in contact with interconnection apertures located in the printed circuit boards. The frictional engagement of the cages in the apertures provides both electrical inter connection of, and mechanical coupling between the printed circuit boards.
Inventors
- 👤 Seymour R. Cray
- 👤 Nicholas J. Krajewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:06
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/099; H01; H01R; H01R12/00; H01R12/50; H01R12/51; H01R12/52; H01R12/523; H05; H05K; H05K3/00; H05K3/30; H05K3/306; H05K3/308; H05K3/32; H05K3/328; H05K3/36; H05K2201/00; H05K2201/09; H05K2201/09209; H05K2201/095; H05K2201/096; H05K2201/10; H05K2201/10431; H05K2201/1059; H05K2201/10613; H05K2201/10742; H05K2201/1075; H05K2201/10818; H05K2201/10825; H05K2201/10886; H05K2201/10909; H05K2201/10946; H05K2203/00; H05K2203/04; H05K2203/0495; H05K3/368; H10W46/00; H10W72/00; H10W72/01; H10W72/012; H10W72/01204; H10W72/01221; H10W72/01225; H10W72/01251; H10W72/071; H10W72/075; H10W72/07551; H10W72/07554; H10W72/20; H10W72/251; H10W72/252; H10W72/50; H10W72/541; H10W72/547; H10W72/551; H10W72/552; H10W72/5522; H10W72/5525; H10W72/90; H10W72/941; H10W72/944; H10W72/9445; H10W72/951; H10W72/952; H10W90/00; H10W90/20; H10W90/284; H10W90/288; H10W90/297; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49126; Y10T29/4913; Y10T29/49139; Y10T29/4914; Y10T29/49144; Y10T29/49147; Y10T29/49151; Y10T29/49153
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
106 words
Interconnection apparatus comprising: a plurality of electronic assemblies positioned in a stack, each electronic assembly having an interconnection aperture, each interconnection aperture having an inner contact surface at the periphery of the aperture, the interconnection apertures of each electronic assembly aligning with the interconnection apertures of all the other electronic assemblies positioned in the stack; and an elongated twisted wire jumper extending within the aligned interconnection apertures of the stacked electronic assemblies, the jumper having a plurality of cage members positioned therealong, each cage member resiliently and conductively engaging the inner contact surface to electrically interconnect and mechanically couple the electronic assemblies together in the stack.
Claim 2
Dependent Claim
106 words
Interconnection apparatus comprising: a plurality of electronic assemblies positioned in a stack, each electronic assembly having an interconnection aperture, each interconnection aperture having an inner contact surface at the periphery of the aperture, the interconnection apertures of each electronic assembly aligning with the interconnection apertures of all the other electronic assemblies positioned in the stack; and an elongated twisted wire jumper extending within the aligned interconnection apertures of the stacked electronic assemblies, the jumper having a plurality of cage members positioned therealong, each cage member resiliently and conductively engaging the inner contact surface to electrically interconnect and mechanically couple the electronic assemblies together in the stack.
Claim 3
Dependent Claim
19 words
The apparatus of claim 1 wherein said plurality of electronic assemblies further comprises: at least one power distribution plate.
Claim 4
Dependent Claim
25 words
The apparatus of claim 1 wherein said plurality of electronic assemblies further comprises: at least one circuit board carrying at least one active integrated circuits.
Claim 5
Dependent Claim
19 words
The apparatus of claim 1 wherein said plurality of electronic assemblies further comprises: at least one logic interconnection plate.
Claim 6
Dependent Claim
116 words
The apparatus of claim 1 further comprising: three or more electronic assemblies positioned in a stack, each assembly having a plurality of interconnection apertures, the electronic assemblies positioned in the stack with groups of interconnection apertures in alignment in the stack, each interconnection aperture having an inner contact surface at the periphery of each said interconnection aperture; a plurality of twisted wire jumpers, each jumper extending through one group of aligned interconnection holes in the stacked assemblies, each jumper having a plurality of cage members positioned along the length of the jumper for compressive engagement with the contact surfaces of the interconnection apertures of each group to electrically interconnect and mechanically couple the stacked assemblies together.
Claim 7
Dependent Claim
58 words
The apparatus of claim 1 or 5 wherein said twisted wire jumper further comprises: a central core strand; a plurality of coil strand wound in a sheath surrounding said central core stand; and wherein each cage member comprises a plurality of resilient coil strands from the sheath formed generally into a barrel shape spaced from the core strand.
Claim 8
Dependent Claim
18 words
The apparatus of claim 6 wherein said coil strands and said core strand have the same strand diameter.
Claim 9
Dependent Claim
15 words
The apparatus of claim 6 wherein said coil strand diameter exceeds the core strand diameter.
Claim 10
Dependent Claim
17 words
The apparatus of claim 6 wherein said coil strand diameter is less than the core strand diameter.
Claim 11
Dependent Claim
19 words
The apparatus of claim 6 wherein said sheath comprises six coil strands helically wound around a single core strand.
Claim 12
Dependent Claim
65 words
The apparatus of claim 1 or 5 wherein said twisted wire jumper further comprises: a central core strand; a plurality of coil strands surrounding said core strand and forming said cage members in a bulged shape for resilient frictional engagement with and compression against the inner contact surfaces of said interconnection apertures, the cage members providing electrical interconnection and releasable mechanical connection between said assemblies.
Claim 13
Dependent Claim
98 words
The apparatus of claim 1 or 5 wherein said twisted jumper further comprises: a central core strand having a head portion and having a tail portion; a plurality of coil strands wound surrounding the core strand, the coil strands wound to form a sequence of the bulged cage members at predetermined locations for contacting the inner contact surfaces to electrically connect and mechanically releasably connect the assemblies, the coil strands also wound to form a sequence of sections between the cage members for electrically coupling of the cage members and for the mechanical support of the cage members.
Claim 14
Dependent Claim
25 words
The apparatus of claim 12 wherein the bulged cage members are separated from said sections by crimping the coil strands to the central core strand.
Claim 15
Dependent Claim
26 words
The apparatus of claim 12 wherein the bulged cage members are separated from said sections by laser welding the coil strands to the central core strands.
Claim 16
Dependent Claim
19 words
The apparatus of claim 12 wherein the twisted wire jumper further includes a head section having a blunt nose.
Claim 17
Dependent Claim
19 words
The apparatus of claim 12 wherein the twisted wire jumper further includes a tail section having a blunt nose.
Claim 18
Dependent Claim
82 words
The apparatus of claim 1 or 5 wherein said twisted wire jumper further comprises: a plurality of cylindrical portions, each cylindrical portion separating and connecting a pair of cage members, each cylindrical portion comprising a center core strand and a plurality of helically wound coil strands formed in a sheath surrounding said central core strand; and wherein: each of the plurality of cage members comprise a plurality of coil strands of a resilient characteristic formed by untwisting selected stands of the sheath.
Claim 19
Independent Claim
112 words
A method of electrically interconnecting a plurality of electronic assemblies, each assembly having an interconnection aperture with an inner contact surface at the periphery of the interconnection aperture, comprising the steps of: stacking said assemblies to align said interconnection apertures of all the assemblies in the stack; inserting a twisted wire jumper in the aligned interconnection apertures, the jumper having a plurality of resilient bulged cage members for frictional engagement with the inner contact surface of said interconnection apertures; and drawing said twisted wire jumper within said aligned interconnection apertures to position the bulged cage members in resilient frictional mechanical and electrical engagement with the inner contact surface of said interconnection apertures.
Claim 20
Independent Claim
112 words
A method of electrically interconnecting a plurality of electronic assemblies, each assembly having an interconnection aperture with an inner contact surface at the periphery of the interconnection aperture, comprising the steps of: stacking said assemblies to align said interconnection apertures of all the assemblies in the stack; inserting a twisted wire jumper in the aligned interconnection apertures, the jumper having a plurality of resilient bulged cage members for frictional engagement with the inner contact surface of said interconnection apertures; and drawing said twisted wire jumper within said aligned interconnection apertures to position the bulged cage members in resilient frictional mechanical and electrical engagement with the inner contact surface of said interconnection apertures.
Claim 21
Dependent Claim
73 words
The method of claim 18 further comprising forming said twisted wire jumper by steps comprising: clamped a multiple strand helically wound wire to place it under tension; melting said wire to form a blunt nose; crimping said wire at first and second locations to form a pair of crimp collars; rotating said wire at the first and second locations in an antihelical direction to form the bulged cage members between the crimp collars.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-13 | 1994-11-12 | 1995-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-13 | 1998-11-12 | 1999-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-13 | 2002-11-12 | 2003-05-14 | $7700.00 | Window Closed / Lapsed |