Patent US20050149022A1 successfully refreshed from Google Patents.
US3935372A
Expired / Lapsed
US
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Method and apparatus for modifying wire-wrapped back planes
Assignee: Unisys Corp
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Filing: 1974-08-02
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Granted: 1976-01-27
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Expires: 1994-08-02
Abstract
Abstract An improved circuit modification method is provided for wire-wrapped electrical back planes such that changes in the back plane circuitry may be accomplished in areas remote from a production facility where wire-wrap equipment and highly skilled technicians may not be available, such method involving the preparation of a slip-on, post-terminal-compatible printed circuit board at the production facility, delivery of the printed circuit board to the remote area, and the slip-on attachment of the printed circuit board onto the post terminals of the back plane by a repairman who may be unfamiliar with the intricacies of the back plane and its wire-wrapped interconnections, said slip-on printed circuit board being inherently provided with whatever guidance may be required by the repairman in effectuating its installation on the back plane.
Inventors
- 👤 Triplett: Gerald H.
- 👤 Edward A. Nicol
- 👤 William G. Klehm, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:08
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/22; H05K3/222; H05K7/00; H05K7/02; H05K7/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
285 words
The method of effecting wiring changes in the interconnection of the post terminals in a back plane, to thereby modify the operational characteristics of the back plane, said method comprising the steps of: a. forming a matrix of apertures in a board suitable for receiving a printed circuit, said matrix corresponding to the plurality of post terminals on the back plane, b. forming a printed circuit on the surface of said board including a plurality of circuit segments, each of said circuit segments partially spanning the distance between a pair of selected apertures corresponding to a pair of post terminals requiring interconnection, c. forming a pair of circuit terminals at the terminal ends of each of said circuit segments, d. applying a pair of graphic pathways on the surface of said board for each of said circuit segments, each of said pairs of graphic pathways leading from the circuit terminals of a circuit segment to the said pair of selected apertures partially spanned thereby, each of said pairs of graphic pathways terminating at and serving to identify a pair of selected apertures corresponding to a pair of post terminals requiring interconnection, e. affixing one end of a jumper wire to each of said circuit terminals, f. mounting said board with said printed circuit, said jumper wires and said graphic pathways onto the post terminals of the back plane with each aperture of said matrix of apertures being received over its corresponding post terminal of the back plane, and g. electrically connecting the free end of each of said jumper wires to the post terminal receivably disposed within the selected aperture identified by the graphic pathway leading from the circuit terminal to which it is affixed.
Claim 2
Independent Claim
285 words
The method of effecting wiring changes in the interconnection of the post terminals in a back plane, to thereby modify the operational characteristics of the back plane, said method comprising the steps of: a. forming a matrix of apertures in a board suitable for receiving a printed circuit, said matrix corresponding to the plurality of post terminals on the back plane, b. forming a printed circuit on the surface of said board including a plurality of circuit segments, each of said circuit segments partially spanning the distance between a pair of selected apertures corresponding to a pair of post terminals requiring interconnection, c. forming a pair of circuit terminals at the terminal ends of each of said circuit segments, d. applying a pair of graphic pathways on the surface of said board for each of said circuit segments, each of said pairs of graphic pathways leading from the circuit terminals of a circuit segment to the said pair of selected apertures partially spanned thereby, each of said pairs of graphic pathways terminating at and serving to identify a pair of selected apertures corresponding to a pair of post terminals requiring interconnection, e. affixing one end of a jumper wire to each of said circuit terminals, f. mounting said board with said printed circuit, said jumper wires and said graphic pathways onto the post terminals of the back plane with each aperture of said matrix of apertures being received over its corresponding post terminal of the back plane, and g. electrically connecting the free end of each of said jumper wires to the post terminal receivably disposed within the selected aperture identified by the graphic pathway leading from the circuit terminal to which it is affixed.
Claim 3
Dependent Claim
31 words
The method defined in claim 1 wherein said step of forming a printed circuit and the circuit segments thereof on the surface of said board is accomplished by an etching process.
Claim 4
Dependent Claim
39 words
The method defined in claim 1 wherein the graphic pathways leading from said circuit terminals to the selected apertures partially spanned by said circuit segments are produced by an etching process in the form of broken or dotted lines.
Claim 5
Dependent Claim
31 words
The method defined in claim 1 wherein the step of affixing one end of a jumper wire to each of said circuit terminals is effected by soldering said one end thereto.
Claim 6
Dependent Claim
85 words
The method defined in claim 1 wherein said step of electrically connecting the free end of each of said jumper wires to the post terminal receivably disposed within the selected aperture identified by the graphic pathway leading from each of said circuit terminals is effected by: a. connecting a slip-on terminal connector to each of said free ends of said jumper wires, and b. forceably attaching said slip-on terminal connectors to the post terminals receivably disposed within said selected apertures identified by said graphic pathways.
Claim 7
Dependent Claim
214 words
Apparatus for use in effecting wiring changes in the interconnection of the post terminals in a back plane to thereby modify the operational characteristics thereof, said apparatus comprising: a. a printed circuit board having a matrix of apertures corresponding to the post terminals of the back plane, said printed circuit board including a plurality of circuit segments each partially spanning a pair of selected apertures corresponding to a pair of post terminals that require interconnection, b. a pair of circuit terminals connectably disposed at the terminal ends of each of said circuit segments, c. a plurality of graphic pathways leading from said circuit terminals and terminating at and identifying selected apertures corresponding to the post terminals to be connected thereto, and d. a plurality of jumper wires attached at one end to each of said circuit terminals and having at their free ends a slip-on terminal connector, whereby upon installation of said printed circuit board on the post terminals of the back plane and the forceable attachment of each of said slip-on terminal connectors to the post terminals receivably disposed within said selected apertures identified by said graphic pathways, the interconnection of the post terminals requiring interconnection according to the desired modification of the operational characteristics of the back plane will have been made.
Claim 8
Dependent Claim
214 words
Apparatus for use in effecting wiring changes in the interconnection of the post terminals in a back plane to thereby modify the operational characteristics thereof, said apparatus comprising: a. a printed circuit board having a matrix of apertures corresponding to the post terminals of the back plane, said printed circuit board including a plurality of circuit segments each partially spanning a pair of selected apertures corresponding to a pair of post terminals that require interconnection, b. a pair of circuit terminals connectably disposed at the terminal ends of each of said circuit segments, c. a plurality of graphic pathways leading from said circuit terminals and terminating at and identifying selected apertures corresponding to the post terminals to be connected thereto, and d. a plurality of jumper wires attached at one end to each of said circuit terminals and having at their free ends a slip-on terminal connector, whereby upon installation of said printed circuit board on the post terminals of the back plane and the forceable attachment of each of said slip-on terminal connectors to the post terminals receivably disposed within said selected apertures identified by said graphic pathways, the interconnection of the post terminals requiring interconnection according to the desired modification of the operational characteristics of the back plane will have been made.
Claim 9
Dependent Claim
206 words
A printed circuit board effective for modifying the operational characteristics of a wire-wrapped back plane by effecting wiring changes therein relative to the post terminals thereof, said printed circuit board comprising: a. a matrix of apertures corresponding to the post terminals of the wire-wrapped back plane, b. a plurality of circuit segments each partially spanning a pair of selected apertures corresponding to a pair of post terminals that require interconnection, c. a pair of circuit terminals connectably disposed at the terminal ends of each of said circuit segments, d. a plurality of graphic pathways leading from said circuit terminals and terminating at and identifying selected apertures corresponding to the post terminals to be connected thereto, and e. a plurality of jumper wires attached at one end to each of said circuit terminals and having at their free ends a slip-on terminal connector, whereby upon installation of said printed circuit board on the post terminals of the wire-wrapped back plane and the forceable attachment of each of said slip-on terminal connectors to the post terminals receivably disposed within said selected apertures identified by said graphic pathways, the wiring changes required of a desired modification in the operational characteristics of a wire-wrapped back plane will have been made.
Claim 10
Dependent Claim
206 words
A printed circuit board effective for modifying the operational characteristics of a wire-wrapped back plane by effecting wiring changes therein relative to the post terminals thereof, said printed circuit board comprising: a. a matrix of apertures corresponding to the post terminals of the wire-wrapped back plane, b. a plurality of circuit segments each partially spanning a pair of selected apertures corresponding to a pair of post terminals that require interconnection, c. a pair of circuit terminals connectably disposed at the terminal ends of each of said circuit segments, d. a plurality of graphic pathways leading from said circuit terminals and terminating at and identifying selected apertures corresponding to the post terminals to be connected thereto, and e. a plurality of jumper wires attached at one end to each of said circuit terminals and having at their free ends a slip-on terminal connector, whereby upon installation of said printed circuit board on the post terminals of the wire-wrapped back plane and the forceable attachment of each of said slip-on terminal connectors to the post terminals receivably disposed within said selected apertures identified by said graphic pathways, the wiring changes required of a desired modification in the operational characteristics of a wire-wrapped back plane will have been made.
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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) | 1979-01-26 | 1979-07-28 | 1980-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-26 | 1983-07-28 | 1984-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-26 | 1987-07-28 | 1988-01-27 | $7700.00 | Window Closed / Lapsed |