US3818393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control unit for electronic system
Assignee: Wincor Nixdorf International GmbH
•
Filing: 1973-09-25
•
Granted: 1974-06-18
•
Expires: 1993-09-25
Abstract
Abstract A control unit for use in an electronic system such as a matrixshaped control field characterized by the control unit having a housing supporting a circuit board on which control elements including at least two reed switches are mounted. A shaft is supported in the housing between the pair of reed switches and supports a permanent magnet which has two pairs of poles arranged in mirror symmetry to each other. The shaft is connected by a gear arrangement to external means such as a pushbutton to rotate the shaft and the magnet in a step-wise manner between positions opening the reed switches and positions closing the switches.
Inventors
- 👤 H Morgott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:12
CPC Classifications
H; H01; H01H; H01H36/00; H01H36/0006; H01H36/0013
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
162 words
In a control unit for an electronic apparatus such as in a matrix-forming operating field, the control unit including conductor means mounted within a housing and supporting inductively excitable switching means, means for mounting said housing and for connecting the switching means to an electronic circuit to be controlled thereby, means supporting a permanent magnet in operative adjacency to the switching means, pole means fixed with relation to the housing and related to the magnet to normally retain the magnet in predetermined rest positions, and means for rotating said supporting means in a step-like manner to effect movement of said magnet in a step-like manner between the rest positions and relative to said switching means to provide a magnetic shunt for exciting the switching means, the improvement comprising the permanent magnet having two pairs of poles which are arranged in mirror symmetry to each other relative to the support means, said poles being distributed evenly on the periphery of the permanent magnet.
Claim 2
Dependent Claim
162 words
In a control unit for an electronic apparatus such as in a matrix-forming operating field, the control unit including conductor means mounted within a housing and supporting inductively excitable switching means, means for mounting said housing and for connecting the switching means to an electronic circuit to be controlled thereby, means supporting a permanent magnet in operative adjacency to the switching means, pole means fixed with relation to the housing and related to the magnet to normally retain the magnet in predetermined rest positions, and means for rotating said supporting means in a step-like manner to effect movement of said magnet in a step-like manner between the rest positions and relative to said switching means to provide a magnetic shunt for exciting the switching means, the improvement comprising the permanent magnet having two pairs of poles which are arranged in mirror symmetry to each other relative to the support means, said poles being distributed evenly on the periphery of the permanent magnet.
Claim 3
Dependent Claim
89 words
A magnetically controlled switch unit comprising conductor means for supporting an inductively excitable siwtching element, a permanent magnet, means supporting the permanet magnet for rotation about an axis adjacent the switching means, said permanent magnet having a first and second pair of poles, each of said poLes of the first pair lying on a line extending through the axis of rotation with the angle between the pair of lines being substantially 90*, and the poles of the second pair being in mirror symmetry to the first pair of poles.
Claim 4
Dependent Claim
89 words
A magnetically controlled switch unit comprising conductor means for supporting an inductively excitable siwtching element, a permanent magnet, means supporting the permanet magnet for rotation about an axis adjacent the switching means, said permanent magnet having a first and second pair of poles, each of said poLes of the first pair lying on a line extending through the axis of rotation with the angle between the pair of lines being substantially 90*, and the poles of the second pair being in mirror symmetry to the first pair of poles.
Claim 5
Dependent Claim
89 words
A switch unit according to claim 2, which further includes a second inductively excitable switching element extending parallel to the first mentioned switching element on an opposite side of the axis of rotation for said magnet so that when the magnet is in one position relative to the switching elements, a pair of poles is adjacent to each of the switching elements which inductively shunts the field thereof and when the magnet is rotated 90* from one position, the switching means are unaffected by the field of the magnet.
References Cited (Backward Citations)
US3403363A
Cited
US3401366A
Cited
US3514729A
Cited
US3636485A
Cited
US3652963A
Cited
US3652964A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |