US3739467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fabrication of a wired magnetic memory plane
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
•
Filing: 1971-05-17
•
Granted: 1973-06-19
•
Expires: 1991-05-17
Abstract
Abstract The method consists in forming a layer of substantially parallel lead-wires which are insulated with respect to each other and in forming by molding between the two faces of said layer which is folded in two a series of housings in the form of tunnels which are substantially parallel to each other but perpendicular to said lead-wires and are each adapted to accommodate a magnetic wire.
Inventors
- 👤 G Antier
- 👤 G Nicolas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:29
CPC Classifications
G; G11; G11C; G11C5/00; G11C5/02; G11C5/04; G11C11/00; G11C11/02; G11C11/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49069
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
166 words
A method of fabrication of a wired magnetic memory plane comprising the steps of forming a layer of substantially parallel lead conductors which are insulated with respect to each other, placing said layer of parallel electric lead conductors on a support, winding and bonding an assembly of parallel and adherent spacer threads onto said layer of conductors such that said assembly covers a maximum of one-half the area of said layer of lead conductors, said spacer threads forming housings for parallel magnetic wires, cutting said assembly along a straight line not parallel to said spacer threads, folding said layer of lead conductors onto and around said assembly with said spacer threads perpendicular to said lead conductors so that each of said lead conductors forms at least one loop which surrounds said Spacer threads, bonding said spacer threads to said lead conductors, inserting magnetic wires into said housings, said assembly of spacer threads and said electric lead conductors being maintained together by adherence of said spacer threads.
Claim 2
Independent Claim
166 words
A method of fabrication of a wired magnetic memory plane comprising the steps of forming a layer of substantially parallel lead conductors which are insulated with respect to each other, placing said layer of parallel electric lead conductors on a support, winding and bonding an assembly of parallel and adherent spacer threads onto said layer of conductors such that said assembly covers a maximum of one-half the area of said layer of lead conductors, said spacer threads forming housings for parallel magnetic wires, cutting said assembly along a straight line not parallel to said spacer threads, folding said layer of lead conductors onto and around said assembly with said spacer threads perpendicular to said lead conductors so that each of said lead conductors forms at least one loop which surrounds said Spacer threads, bonding said spacer threads to said lead conductors, inserting magnetic wires into said housings, said assembly of spacer threads and said electric lead conductors being maintained together by adherence of said spacer threads.
Claim 3
Dependent Claim
34 words
A method according to claim 1, said magnetic wires being positioned in said housings prior to folding of said layer of electric lead conductors and said housings being grooves between two adjacent spacer threads.
Claim 4
Dependent Claim
35 words
A method according to claim 1, said magnetic wires being inserted into said housings after said folding step, said housings being tunnels constituted by the walls of said spacer threads and by said lead conductors.
Claim 5
Dependent Claim
23 words
A method according to claim 1, said spacer threads being wound contiguously and said housings being formed by removal of alternate spacer threads.
Claim 6
Dependent Claim
35 words
A method according to claim 1, said spacer threads being wound with a pitch so that the free space between two adjacent spacer threads is at least equal to the diameter of said magnetic wires.
Claim 7
Dependent Claim
32 words
A method according to claim 1 said folding step being followed by a step of pressing between two flat surfaces said layer of spacer threads between said layer of folded lead conductors.
Claim 8
Dependent Claim
66 words
A method according to claim 2 including the step of curving the extremities of the spacer threads which project beyond said layer of lead conductors prior to folding said layer of lead conductors by pressing them between two male and female surfaces and then positioning said magnetic wires in said housings in the form of grooves each constituted by the walls of two adjacent spacer threads.
Claim 9
Dependent Claim
33 words
A method according to claim 1 including the step of forming said layer of parallel, electric lead conductors by an adherent and electrically inSulated lead conductor wound onto and bonded to said support.
Claim 10
Dependent Claim
41 words
A method according to claim 1, said bonding step being carried out by passing said adherent wire through a solvent prior to winding and then blowing hot air onto said adherent wire after winding to activate the evaporation of said solvent.
Claim 11
Dependent Claim
19 words
A method according to claim 1, said bonding step being performed by heating said adherent wires by Joule effect.
Claim 12
Dependent Claim
16 words
A method according to claim 1, said bonding step being performed by heating in an oven.
Claim 13
Dependent Claim
37 words
A method according to claim 1, said layer of lead conductors being folded a number of times on each side of said assembly of spacer threads, each lead conductor forming a plurality of continuous loops in series.
Claim 14
Dependent Claim
14 words
A method according to claim 1, said winding step being performed on a drum.
References Cited (Backward Citations)
US3448514A
Cited
US3534471A
Cited
US3538599A
Cited
US3495228A
Cited
US3501830A
Cited
US3631592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |