US3697779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Function control
Assignee: Electro Corp
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Filing: 1969-07-18
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Granted: 1972-10-10
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Expires: 1989-07-18
Abstract
Abstract A control circuit which responds to plural characteristics of an apparatus. When synchronism of the characteristics is lost for a period of time, a signal is given to turn the apparatus off.
Inventors
- 👤 Gordon E Gee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:58
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/0175; H03K19/017545; G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/048
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
124 words
A control responsive to physical position characteristics of two moving elements being operated by at least a portion of an apparatus, each characteristic being capable of assuming one or the other of two conditions, said control comprising: means for sensing the position of each element for determining the condition of each characteristic of said elements; means responsive to said sensing means for comparing the conditions of each characteristic of said elements; and means responsive to a difference in condition among said characteristics for generating a warning signal, said comparing means including an EXCLUSIVE-OR circuit responsive to one of the conditions of each characteristic to actuate said warning signal generating means to inhibit operation of the apparatus in the absence of correspondence among the characteristics.
Claim 2
Dependent Claim
124 words
A control responsive to physical position characteristics of two moving elements being operated by at least a portion of an apparatus, each characteristic being capable of assuming one or the other of two conditions, said control comprising: means for sensing the position of each element for determining the condition of each characteristic of said elements; means responsive to said sensing means for comparing the conditions of each characteristic of said elements; and means responsive to a difference in condition among said characteristics for generating a warning signal, said comparing means including an EXCLUSIVE-OR circuit responsive to one of the conditions of each characteristic to actuate said warning signal generating means to inhibit operation of the apparatus in the absence of correspondence among the characteristics.
Claim 3
Dependent Claim
34 words
The control of claim 1 in which said means for generating warning signal includes AND means responsive to the output of said EXCLUSIVE-OR circuit and to one of the two conditions of the characteristics.
Claim 4
Dependent Claim
23 words
The control of claim 1 including time delay means connected between the output of said EXCLUSIVE-OR means and said warning signal generating means.
Claim 5
Dependent Claim
159 words
A control responsive to physical position characteristics of a plurality of moving elements being operated by at least a portion of an apparatus, each characteristic being capable of assuming one or the other of two conditions, said control comprising: means for sensing the position of each element for determining the condition of each characteristic of said elements; means responsive to said sensing means for comparing the conditions of each characteristic of said elements; means responsive to a difference in condition among said characteristics for generating a warning signal; means responsive to said sensing means for generating signals representing one condition of each characteristic; means responsive to said sensing means for generating signals representing the other condition of each characteristic; AND means responsive to the signals representing said one condition of said characteristics; AND means responsive to the signals representing the other condition of said characteristics; said means for generating a warning signal being responsive to both said AND means.
Claim 6
Dependent Claim
159 words
A control responsive to physical position characteristics of a plurality of moving elements being operated by at least a portion of an apparatus, each characteristic being capable of assuming one or the other of two conditions, said control comprising: means for sensing the position of each element for determining the condition of each characteristic of said elements; means responsive to said sensing means for comparing the conditions of each characteristic of said elements; means responsive to a difference in condition among said characteristics for generating a warning signal; means responsive to said sensing means for generating signals representing one condition of each characteristic; means responsive to said sensing means for generating signals representing the other condition of each characteristic; AND means responsive to the signals representing said one condition of said characteristics; AND means responsive to the signals representing the other condition of said characteristics; said means for generating a warning signal being responsive to both said AND means.
Claim 7
Dependent Claim
161 words
A control responsive to physical position characteristics of a plurality of moving elements being operated by at least a portion of an apparatus, each characteristic being capable of assuming one or the other of two conditions, said control comprising: means for sensing the position of each element for determining the condition of each characteristic of said elements; means responsive to said sensing means for comparing the conditions of each characteristic of said elements; means responsive to a difference in condition among said characteristics for generating a warning signal; means for generating signals representing one condition of each characteristic; AND means responsive to the signal representing said one condition; said means for generating a warning signal being responsive to said AND means; and time delay means connected between said AND means and said warning signal generating means, said time delay having a period sufficiently long that transient position characteristics of said elements will not result in the generation of said warning signal.
Claim 8
Dependent Claim
161 words
A control responsive to physical position characteristics of a plurality of moving elements being operated by at least a portion of an apparatus, each characteristic being capable of assuming one or the other of two conditions, said control comprising: means for sensing the position of each element for determining the condition of each characteristic of said elements; means responsive to said sensing means for comparing the conditions of each characteristic of said elements; means responsive to a difference in condition among said characteristics for generating a warning signal; means for generating signals representing one condition of each characteristic; AND means responsive to the signal representing said one condition; said means for generating a warning signal being responsive to said AND means; and time delay means connected between said AND means and said warning signal generating means, said time delay having a period sufficiently long that transient position characteristics of said elements will not result in the generation of said warning signal.
Claim 9
Dependent Claim
35 words
ThE control of claim 4 wherein each of said AND means includes a transistor switch and the means for generating the warning signal includes a bistable flip-flop network connected with the outputs of said transistors.
Claim 10
Dependent Claim
20 words
The control circuit of claim 6 including time delay means connected between said transistors and said warning signal generating means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |