US3665428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Keepered plated-wire memory
Assignee: 3M Co
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Filing: 1970-10-16
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Granted: 1972-05-23
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Expires: 1990-10-16
Abstract
Abstract A plated-wire memory array, and a method of making the same, including a flexible integrally molded grooved keeper and word conductor combination having reinforcing material molded to the base of the keeper, plated bit wires in intimate contact with the keeper, and a ground plate.
Inventors
- 👤 Murray Olyphant Jr
- 👤 Michael David Cartier
- 👤 Charles Robert Freeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:20
CPC Classifications
G; G11; G11C; G11C5/00; G11C5/02; G11C5/04; G11C11/00; G11C11/02; G11C11/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
150 words
An integrally molded keeper and word conductor combination having particular utility in a plated-wire memory array, said combination comprising A. a molded keeper of a flexible solid dielectric material loaded with magnetically soft ferrite particles and having a base and at least two longitudinal parallel ridges upwardly projecting from the base defining a parallel groove therebetween; B. a word drive conductor molded within said keeper between said ridges to form the bottom of said groove to precisely establish a desired distance from the top of said conductor to a plane defined by the upper surfaces of the two adjacent said ridges, said conductor being wider then the immediately adjacent width of said groove so that said conductor extends into adjacent said ridges to interlock said conductor into said keeper; and C. reinforcing material affixed to said base to maintain the lateral dimensions of said keeper when subjected to external forces.
Claim 2
Dependent Claim
150 words
An integrally molded keeper and word conductor combination having particular utility in a plated-wire memory array, said combination comprising A. a molded keeper of a flexible solid dielectric material loaded with magnetically soft ferrite particles and having a base and at least two longitudinal parallel ridges upwardly projecting from the base defining a parallel groove therebetween; B. a word drive conductor molded within said keeper between said ridges to form the bottom of said groove to precisely establish a desired distance from the top of said conductor to a plane defined by the upper surfaces of the two adjacent said ridges, said conductor being wider then the immediately adjacent width of said groove so that said conductor extends into adjacent said ridges to interlock said conductor into said keeper; and C. reinforcing material affixed to said base to maintain the lateral dimensions of said keeper when subjected to external forces.
Claim 3
Dependent Claim
48 words
An integrally molded keeper and word conductor combination according to claim 1 wherein each of said two longitudinal parallel ridges includes at least one notch, both of said notches extending downwardly from said plane to receive and align bit wires substantially orthogonal relative to said word drive conductor.
Claim 4
Dependent Claim
72 words
a word drive conductor molded within said keeper between said ridges to form the bottom of said groove to precisely establish the desired distance from the top of said conductor to a plane defined by the upper surfaces of the two adjacent said ridges, said conductor being wider than the immediately adjacent width of said groove so that said conductor extends into adjacent said ridges to interlock said conductor into said keeper;
Claim 5
Dependent Claim
72 words
a word drive conductor molded within said keeper between said ridges to form the bottom of said groove to precisely establish the desired distance from the top of said conductor to a plane defined by the upper surfaces of the two adjacent said ridges, said conductor being wider than the immediately adjacent width of said groove so that said conductor extends into adjacent said ridges to interlock said conductor into said keeper;
Claim 6
Dependent Claim
64 words
reinforcing material affixed to said base to maintain the lateral dimensions of said keeper when subjected to external forces; B. a ground plane positioned adjacent to said plane and electrically connected to said word drive conductor; and C. at least one bit wire positioned between said keeper and word-strap combination and said ground plane and aligned substantially orthogonally relative to said word drive conductor.
Claim 7
Dependent Claim
64 words
reinforcing material affixed to said base to maintain the lateral dimensions of said keeper when subjected to external forces; B. a ground plane positioned adjacent to said plane and electrically connected to said word drive conductor; and C. at least one bit wire positioned between said keeper and word-strap combination and said ground plane and aligned substantially orthogonally relative to said word drive conductor.
Claim 8
Dependent Claim
31 words
An integrally molded keeper and word conductor combination according to claim 1 wherein said top of said conductor is a uniform distance from said plane for the length of said conductor.
Claim 9
Dependent Claim
34 words
An integrally molded keeper and word conductor combination according to claim 1 wherein said top of said conductor defines a sinuous surface having depressed areas adjacent to bit wires in a plated-wire memory array.
Claim 10
Dependent Claim
15 words
A plated-wire memory array comprising A. an integrally molded keeper and word conductor combination including
Claim 11
Dependent Claim
15 words
A plated-wire memory array comprising A. an integrally molded keeper and word conductor combination including
Claim 12
Dependent Claim
42 words
A plated-wire memory array according to claim 5 wherein each of said two longitudinal parallel ridges includes at least one notch, said notches extending downwardly from said plane to receive and align bit wires substantially orthogonal relative to said word drive conductor.
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) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |