US3593289A
Expired / Lapsed
US
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Electronic programmer for machine-control systems having simultaneous plural inputs
Assignee: Mannesmann Demag Krauss Maffei GmbH
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Filing: 1968-10-01
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Granted: 1971-07-13
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Expires: 1988-10-01
Abstract
Abstract An electronic programming arrangement for machine operation in a system in which a switch arrangement has a condition in which it represents a predetermined prior condition and is adapted to control an element, e.g. relay, electromagnetic valve or motor. The system has an amplifying transistor and circuitry for maintaining the transistor normally at a predetermined bias; the transistor being effectively connected with the machine-control element for operation thereof only upon the attainment of a predetermined operating bias. The switch arrangement includes a plurality of resistors in circuit with the transistor and the respective switch, each of which must be rendered effective before the transistor initiates the control operation. The switch arrangement may include a set of switch contacts in circuit with a DC source and the resistors in a crossbar array while the transistor operatable by each set of switches becomes effective only when all of them have been set in a predetermined condition. The transistor serves as the input to a bistable switch device (e.g. a multivibrator flip-flop) which can operate an output transistor arrangement as part of a switch system with similar crossbar arrays of resistors. A time delay network is provided between each of the transistors and the respective bistable multivibrators.
Inventors
- 👤 Gerhard Lerch
- 👤 Egon Penzkofer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:06
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/08
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
165 words
A system for programming a machine to activate a plurality of machine-control elements in response to respective predetermined prior conditions, said system comprising: a respective set of switching devices associated with each of said elements and operable in toto to initiate activation thereof while representing said condition, thereby initiating a machine operation; respective transistor-amplifier means between each of said sets of switching devices and the respective element and effective upon the attainment of a predetermined bias condition to actuate said respective element; circuit means normally maintaining said transistor-amplifier means under a bias other than said predetermined bias condition; and respective means connected in circuit with each said transistoramplifier means and the respective set and including respective bias resistors between the base of said transistor and said switching devices and effective only upon the attainment of said predetermined coNdition of said switching devices as represented by actuation of the entire set for applying said predetermined bias condition to said transistor-amplifier means, thereby activating the respective element.
Claim 2
Independent Claim
165 words
A system for programming a machine to activate a plurality of machine-control elements in response to respective predetermined prior conditions, said system comprising: a respective set of switching devices associated with each of said elements and operable in toto to initiate activation thereof while representing said condition, thereby initiating a machine operation; respective transistor-amplifier means between each of said sets of switching devices and the respective element and effective upon the attainment of a predetermined bias condition to actuate said respective element; circuit means normally maintaining said transistor-amplifier means under a bias other than said predetermined bias condition; and respective means connected in circuit with each said transistoramplifier means and the respective set and including respective bias resistors between the base of said transistor and said switching devices and effective only upon the attainment of said predetermined coNdition of said switching devices as represented by actuation of the entire set for applying said predetermined bias condition to said transistor-amplifier means, thereby activating the respective element.
Claim 3
Dependent Claim
50 words
The system defined in claim 1, further comprising a direct-current source, respective first transistors connected in series with each of said devices across said source, the respective first-mentioned resistors being connected between the base of said transistor and the respective switching device between the latter and the corresponding second resistor.
Claim 4
Dependent Claim
81 words
The system defined in claim 2, further comprising a crossbar matrix for said first resistors, said matrix comprising a plurality of mutually parallel transversely spaced conductors connected to the respective switching devices, and an orthogonal array of mutually parallel transversely spaced conductors respectively connected to the bases of corresponding transistors, said first resistors of said set of devices bridging the conductor associated with the respective transistor and the conductors associated with the respective switching device at the intersections of said conductors.
Claim 5
Dependent Claim
37 words
The system defined in claim 3 wherein said conductors are formed on the opposite sides of a nonconductive plate provided with holes at said intersections, said first resistors being removably soldered to said conductors through said holes.
Claim 6
Dependent Claim
27 words
The system defined in claim 2, further comprising at least one bistable multivibrator between each said transistor amplifier means and the respective said element for activating same.
Claim 7
Dependent Claim
54 words
The system defined in claim 5 wherein a plurality of bistable multivibrators is provided, each operable by corresponding transistors of said transistor-amplifier means to initiate successive machine operations, each of said multivibrators engaged in a presetting operation being connected to a transistor of said transistor-amplifier means of a successively operating multivibrator for enabling same.
Claim 8
Dependent Claim
32 words
The system defined in claim 6, further comprising a time-delay network between each of said transistors and the respective multivibrator for preventing premature energization thereof by electrical transients produced by said devices.
Claim 9
Dependent Claim
44 words
The system defined in claim 7, further comprising respective amplifying transistors connected in circuit with each of said elements and bias-resistor means connected between the respective multivibrator and the amplifying transistors of said elements for selectively energizing same in accordance with a predetermined program.
Claim 10
Dependent Claim
66 words
The system defined in claim 1 wherein at least one of the switching devices of each set is a bistable multivibrator, said transistor-amplifier means including a respective transistor associated with each set of switching devices and operable only upon the actuation of all of said devices to establish a prearranged condition of the respective set, said transistor being connected with a respective element for actuating same.
Claim 11
Dependent Claim
82 words
The system defined in claim 9, further comprising a crossbar matrix for said bias resistors, said matrix comprising a plurality of mutually parallel transversely spaced conductors connected to the respective switching device and an orthogonal array of mutually parallel transversely spaced conductors respectively connected to the bases of the corresponding transistors, said resistors of each set of said devices bridging the conductor associated with the respective transistor and the conductors associated with the respective switching devices at the intersection of said conductors.
Claim 12
Dependent Claim
36 words
The system defined in claim 10 wherein said conductors are formed on the opposite sides of a nonconductive plate provided with holes at said intersections, said resistors being removably soldered to said conductors through said holes.
Claim 13
Dependent Claim
33 words
The system defined in claim 10 wherein at least one of the switching devices of each of said sets is a manually operable switch settable to enable the operation of the respective transistoR.
Claim 14
Dependent Claim
39 words
The system defined in claim 12 wherein some of said bistable multivibrators are adapted to initiate operations subsequent to the operations of prior-operating bistable multivibrators, said prior-operating bistable multivibrators being connected to the subsequently operating multivibrators for enabling same.
Claim 15
Dependent Claim
125 words
The system defined in claim 13 wherein: a plurality of input switching devices is provided in sets operably to initiate a succession of machine operations; said transistor-amplifier means includes a respective input transistor associated with each set of input switching devices and operable only upon the actuation of all of said input devices of the corresponding set to establish a prearranged condition thereof; and said means connected in circuit with said transistor-amplifier means comprises respective first input bias resistors between the base of each input transistor and the respective input switching device of the corresponding set for applying a predetermined bias condition to the respective input transistor, each of said input transistors being connected to at least one of said bistable multivibrators for energizing same.
Claim 16
Dependent Claim
21 words
The system defined in claim 14, further comprising time-delay means between each of said input transistors and the respective bistable multivibrator.
Claim 17
Dependent Claim
35 words
The system defined in claim 15 wherein each of said multivibrators, an amplifier transistor energized thereby, a respective time-delay network and at least one input transistor form a plug-in circuit component assemblable in said system.
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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |