US3573810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanically actuated magnetic switch arrangement
Assignee: Nixdorf Computer AG
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Filing: 1968-11-12
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Granted: 1971-04-06
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Expires: 1988-11-12
Abstract
Abstract A mechanically actuated magnetic switch arrangement includes a plurality of closed magnetic cores and a plurality of windings on each core. A magnetic saturation element is near each core, and means respond to actuation of a switch lever associated with each core for permitting or preventing saturation of that core. A rest-position loop is connected to one winding on each core and delivers an input signal to an amplifier. The output of the amplifier is connected to an electronic lock for preventing more than one signal at a time from emanating from the switch arrangement.
Inventors
- 👤 Lorenz Hanewinkel
- 👤 Winfried Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:07
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/94; H03K17/965; H03K17/97; H03K17/972
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
140 words
A mechanically actuated magnetic switch arrangement, comprising a plurality of closed magnetic cores, a plurality of windings on each core, each core being able to transmit a signal from one of its windings to another only when it is unsaturated, a magnetic saturation element near each of said cores, a switch lever associated with each core, means responsive to actuation of each switch lever for alternatively permitting or preventing saturation of its respective core by the magnetic saturation Element near that core, a rest-position loop connected to one of said windings on each of said cores, and an amplifier connected to said rest-position loop so as to receive an input signal from the latter, the output of said amplifier being connected to an electronic lock for preventing more than one signal at a time from emanating from said switch arrangement.
Claim 2
Dependent Claim
140 words
A mechanically actuated magnetic switch arrangement, comprising a plurality of closed magnetic cores, a plurality of windings on each core, each core being able to transmit a signal from one of its windings to another only when it is unsaturated, a magnetic saturation element near each of said cores, a switch lever associated with each core, means responsive to actuation of each switch lever for alternatively permitting or preventing saturation of its respective core by the magnetic saturation Element near that core, a rest-position loop connected to one of said windings on each of said cores, and an amplifier connected to said rest-position loop so as to receive an input signal from the latter, the output of said amplifier being connected to an electronic lock for preventing more than one signal at a time from emanating from said switch arrangement.
Claim 3
Dependent Claim
61 words
A mechanically actuated magnetic switch arrangement as defined in claim 1 including a plurality of said rest-position loops, the windings connected to each loop being on cores different from the cores of windings connected to the other loop or loops, a separate amplifier connected to each of said loops, the outputs of all said amplifiers being connected to an OR circuit.
Claim 4
Dependent Claim
85 words
A mechanically actuated magnetic switch arrangement as defined in claim 1 wherein each of said cores carries a primary winding and at least some of said cores carry a plurality of secondary windings, the secondary windings of different cores being connected together in series to define predetermined coded loops, each of said coded loops having a complementary loop, each of said coded loops and its complementary loop being connected to a separate AND circuit, and all said AND circuits being connected to an OR circuit.
Claim 5
Dependent Claim
82 words
A mechanically actuated magnetic switch arrangement as defined in claim 1 wherein each of said cores carries a primary winding and at least some of said cores carry a plurality of secondary windings, the secondary windings of different cores being connected together in series to define predetermined coded loops, half the windings of each coded loop being wound in a direction with respect to the primary flow different from the direction in which the other half of said loop windings are wound.
Claim 6
Dependent Claim
24 words
A mechanically actuated magnetic switch arrangement as defined in claim 1 wherein the material from which said cores are made has a square-wave characteristic.
Claim 7
Dependent Claim
66 words
A mechanically actuated magnetic switch arrangement as defined in claim 1 wherein each of said magnetic saturation elements is carried by and movable with its respective switch lever, said lever being normally positioned to locate said saturation element close enough to its respective core to saturate the latter, movement of said lever causing movement of said saturation element away from said core to unsaturate the latter.
Claim 8
Dependent Claim
50 words
A mechanically actuated magnetic switch arrangement as defined in claim 1 wherein each of said cores and its respective magnetic saturation element is separated by a space, and including a screening element carried by said switch lever and movable upon actuation of the latter into or out of said space.
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) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |