US3821672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnet arrangement for data processing devices
Assignee: TA Triumph-Adler GmbH
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Filing: 1973-10-01
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Granted: 1974-06-28
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Expires: 1993-10-01
Abstract
Abstract An electro-magnet device in which U-shaped magnetic core plates are provided and arranged one behind the other in staggered relation. Electric coils are placed over the legs of the core plates which are nearest each other. The stacked core plates with the respective coils are disposed adjacent corresponding armatures which are tiltably mounted on a support shaft extending perpendicular to the core plates. The electro-magnet arrangement is particularly useful for use with digital processing devices, especially for actuating the printing wheels thereof.
Inventors
- 👤 K Sturm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:32
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/14; B; B41; B41J; B41J7/00; B41J7/48
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
160 words
In a magnet arrangement, especially for data processing devices; a plurality of electric coils having the axes parallel and disposed in two rows with the coils in one row staggered relative to those in the other row, the coils in each row being in side by side relation and the rows being adjacent, generally U-shaped core plate means for each coil and each core plate means having one leg extending axially through a respective coil in one row of coils and the other leg extending axially along the outer side of the other row of coils, the free ends of said legs forming pole faces, an armature disposed near the free ends of the legs of each core plate means and operatively associated with the pole faces of the respective core plate means, and a single shaft member extending parallel to said rows of coils and at right angles to the axes of said coils and pivotally supporting said armatures.
Claim 2
Dependent Claim
160 words
In a magnet arrangement, especially for data processing devices; a plurality of electric coils having the axes parallel and disposed in two rows with the coils in one row staggered relative to those in the other row, the coils in each row being in side by side relation and the rows being adjacent, generally U-shaped core plate means for each coil and each core plate means having one leg extending axially through a respective coil in one row of coils and the other leg extending axially along the outer side of the other row of coils, the free ends of said legs forming pole faces, an armature disposed near the free ends of the legs of each core plate means and operatively associated with the pole faces of the respective core plate means, and a single shaft member extending parallel to said rows of coils and at right angles to the axes of said coils and pivotally supporting said armatures.
Claim 3
Dependent Claim
21 words
A magnet arrangement according to claim 1 which includes housing means in which said coils and core plate means are mounted.
Claim 4
Dependent Claim
60 words
A magnet arrangement according to claim 1 in which the said other legs of each core plate means at the free ends thereof extend toward the said one leg of the respective core plate means into adjacent relation with the free ends of the legs of the core plate means which extend through coils adjacent the respective said other legs.
Claim 5
Dependent Claim
35 words
A magnet arrangement according to claim 1 in which each said coil is rectangular in transverse cross section, the larger dimension of each coil being parallel to the plane of the pertaining core plate means.
Claim 6
Dependent Claim
42 words
A magnet arrangement according to claim 4 in which the longer sides of the coils abut one another in each row while the shorter sides of the coils in each row abut the shorter sides of the coils in the other row.
Claim 7
Dependent Claim
37 words
A magnet arrangement according to claim 4 in which the distance between the centers of the adjacent coils in a row is greater than twice the thickness of a core plate means measured in the same direction.
Claim 8
Dependent Claim
32 words
A magnet arrangement according to claim 1 in which the coils in one row are polarized in a direction opposite to the coils in the other row when the coils are energized.
Claim 9
Dependent Claim
64 words
A magnet arrangement according to claim 1 in which each armature has end surfaces opposed to the pole faces of the respective core plate means, said pole faces and the respective end surfaces being so disposed relative to said shaft that equal torques are exerted on the armature by said end surfaces upon energization of the coil pertaining to the respective core plate means.
Claim 10
Dependent Claim
96 words
A magnet arrangement according to claim 1 in which each armature has end surfaces opposed to the pole faces of the respective core plate means, said end surfaces being flat and angularly related, said end surfaces cooperating with said pole faces to develop torque on said armature upon energization of the coil pertaining to the respective core plate means, a perpendicular erected from the center of each said end surface and representing the effective line of action of the magnetic force on each end surface passing by said shaft at one and the same radial distance.
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) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |