US3848209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic field coil assembly for a magnetic bubble domain device
Assignee: Bull HN Information Systems Italia SpA
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Filing: 1974-01-02
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Granted: 1974-11-12
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Expires: 1994-01-02
Abstract
Abstract A modular orthogonal coil assembly for providing propagating magnetic fields for magnetic bubble domains has upper and lower boards and interconnecting side sheets, all of which carry etched sets of conductors. Conductors on the upper board are tied to conductors on the lower board through conductors on the interconnecting sheets to form coil turns. Removable connectors hold the interconnecting sheets in place relative to the upper and lower boards.
Inventors
- 👤 F Lee
- 👤 J Vysniauskas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:15
CPC Classifications
H; H01; H01F; H01F13/00; H01R; H01R12/00; H01R12/70; H01R12/77; H01R12/79
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
108 words
An orthogonal coil assembly for establishing a propogation field for magnetic bubble domains comprising: a. first and second generally rectangular planar boards, each having orthogonal sets of parallel conductors extending across the major surfaces; b. four generally rectangular interconnecting sheets, each having a set of parallel conductors extending across its surface, the conductors on said interconnecting sheets being spaced at the same intervals as the conductors on said planar boards; and c. a plurality of removable connectors for securing the conductors at the edges of said planar boards in registration with the conductors at the edges of said interconnecting sheets to form orthogonal sets of electrically conducting coils.
Claim 2
Dependent Claim
108 words
An orthogonal coil assembly for establishing a propogation field for magnetic bubble domains comprising: a. first and second generally rectangular planar boards, each having orthogonal sets of parallel conductors extending across the major surfaces; b. four generally rectangular interconnecting sheets, each having a set of parallel conductors extending across its surface, the conductors on said interconnecting sheets being spaced at the same intervals as the conductors on said planar boards; and c. a plurality of removable connectors for securing the conductors at the edges of said planar boards in registration with the conductors at the edges of said interconnecting sheets to form orthogonal sets of electrically conducting coils.
Claim 3
Dependent Claim
30 words
An orthogonal coil assembly as recited in claim 1 wherein the conductors extending across the surfaces of said planar boards and said interconnecting sheets are deposited strips of conductive material.
Claim 4
Dependent Claim
16 words
A magnetic field coil assembly as recited in claim 2 wherein said interconnecting sheets are flexible.
Claim 5
Dependent Claim
110 words
A magnetic field coil assembly as recited in claim 3 wherein each of said connectors includes: a. a male part having a base and a pair of upstanding wall members defining a central recess across which a portion of an interconnecting sheet may be positioned and into which one edge of a planar board may be inserted; and b. a female part having rectangular side walls defining a central cavity for accepting the wall members of said male part and a bar extending between opposite sidewalls in alignment with the central recess of said male part, said bar serving to hold the interconnecting sheet in place within the central recess.
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) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |