Patent US3604904A successfully refreshed from Google Patents.
US3604904A
Expired / Lapsed
US
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Monitoring device
Assignee: Radex Corp
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Filing: 1969-02-06
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Granted: 1971-09-14
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Expires: 1989-02-06
Abstract
Abstract A monitoring device specially adapted for production control purpose by providing one count for each workpiece produced by a machine, such as a forge hammer or the like, which requires an indefinite number of strokes or motions in order to produce a finished workpiece. The total energy consumed by the machine for producing a finished workpiece is transduced into an electrical signal comprising a first train of electrical pulses of a first amplitude duration ratio, corresponding to the working cycle of the machine, followed by a second train of second electrical pulses of a lower amplitude duration ratio, corresponding to the idling cycle of the machine. Those signals are integrated by appropriate means supplying at its output a voltage level varying between a maximum level corresponding to the first train of pulses and a minimum level corresponding to the second train of pulses. The minimum voltage level is used to set a control means which is in turn activated by a voltage level corresponding to approximately the maximum level, and each time the control means is activated, a count is registered. Additionally, diverse indicators are provided for monitoring production cycles of the machine, down time cycles, and for providing a permanent record of production rates.
Inventors
- 👤 Ariel I Stiebel
- 👤 Seymour A Lippmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:42
CPC Classifications
G; G07; G07C; G07C3/00; G07C3/08; G07C3/10
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
210 words
A monitoring device for giving one count for each occurrence of a first train of electrical pulses of a predetermined amplitude duration ratio followed by a second train of electrical pulses of a lower amplitude duration ratio, said device comprising integrating means adapted to accept said pulses at its input and to supply at its output a voltage level increasing to a maximum level corresponding to the occurrence of said first train of pulses and decreasing to a minimum level corresponding to the occurrence of said second train of pulses, normally off switch means connected to the output of said integrating means, said switch means being adapted to be set at a voltage slightly above said minimum level, to be turned on at a voltage slightly below said maximum level and to be turned off at a voltage slightly below said minimum level, counting means activated by said switch means for registering one count each time said switch means is turned on, normally on indicator means operatively connected with said counter means, a normally charged capacitor adapted to be discharged each time said counter means is operated, and control means connected across said capacitor for turning said indicator means off when the voltage across said capacitor reaches a predetermined value.
Claim 2
Dependent Claim
210 words
A monitoring device for giving one count for each occurrence of a first train of electrical pulses of a predetermined amplitude duration ratio followed by a second train of electrical pulses of a lower amplitude duration ratio, said device comprising integrating means adapted to accept said pulses at its input and to supply at its output a voltage level increasing to a maximum level corresponding to the occurrence of said first train of pulses and decreasing to a minimum level corresponding to the occurrence of said second train of pulses, normally off switch means connected to the output of said integrating means, said switch means being adapted to be set at a voltage slightly above said minimum level, to be turned on at a voltage slightly below said maximum level and to be turned off at a voltage slightly below said minimum level, counting means activated by said switch means for registering one count each time said switch means is turned on, normally on indicator means operatively connected with said counter means, a normally charged capacitor adapted to be discharged each time said counter means is operated, and control means connected across said capacitor for turning said indicator means off when the voltage across said capacitor reaches a predetermined value.
Claim 3
Dependent Claim
42 words
The monitoring device of claim 5 wherein said integrating means comprises essentially a capacitor adapted to be charged by said electrical pulses and to discharge through a resistor network comprising an adjustable resistor for adjusting the time constant of said integrating means.
Claim 4
Dependent Claim
41 words
The monitoring device of claim 1 further comprising normally off indicator means and control means for said normally off indicator means connected across said capacitor for turning said indicator means on when the voltage across said capacitor reaches a predetermined value.
Claim 5
Dependent Claim
25 words
The monitoring device of claim 3 further comprising normally off cummulative elapse time recording means operatively adapted to be turned on by said control means.
Claim 6
Dependent Claim
28 words
The monitoring device of claim 1 wherein the amplitude of said first train of electrical pulses is equal to the amplitude of said second train of electrical pulse.
Claim 7
Dependent Claim
247 words
A production-monitoring device for giving one count for each workpiece produced by a machine whose operation for producing a workpiece results in the occurrence of a first train of electrical pulses of a predetermined amplitude duration ratio followed by a second train of electrical pulses of a lower amplitude duration ratio, said device comprising integrating means comprising essentially a capacitor adapted to be charged by said pulses and to be discharged through a resistor network for defining a voltage level increasing to a maximum level corresponding to the occurrence of said first train of pulses and decreasing to a minimum level corresponding to the occurrence of said second train of pulses, voltage sensitive control means connected to the output of said integrating means, said control means being adapted to be set at a voltage slightly above said minimum level, to be actuated at a voltage slightly below said maximum level and to be turned off at a voltage slightly below said minimum level, counting means activated by said control means for registering one count each time said control means is actuated, normally on indicator means operatively connected with said counter means, a normally charged capacitor adapted to be discharged each time said counter means is operated, and control means connected across said capacitor for turning said indicator means off when the voltage across said capacitor reaches a predetermined value, whereby said indicator means remains on as long as said counter means is operated above a predetermined rate.
Claim 8
Dependent Claim
247 words
A production-monitoring device for giving one count for each workpiece produced by a machine whose operation for producing a workpiece results in the occurrence of a first train of electrical pulses of a predetermined amplitude duration ratio followed by a second train of electrical pulses of a lower amplitude duration ratio, said device comprising integrating means comprising essentially a capacitor adapted to be charged by said pulses and to be discharged through a resistor network for defining a voltage level increasing to a maximum level corresponding to the occurrence of said first train of pulses and decreasing to a minimum level corresponding to the occurrence of said second train of pulses, voltage sensitive control means connected to the output of said integrating means, said control means being adapted to be set at a voltage slightly above said minimum level, to be actuated at a voltage slightly below said maximum level and to be turned off at a voltage slightly below said minimum level, counting means activated by said control means for registering one count each time said control means is actuated, normally on indicator means operatively connected with said counter means, a normally charged capacitor adapted to be discharged each time said counter means is operated, and control means connected across said capacitor for turning said indicator means off when the voltage across said capacitor reaches a predetermined value, whereby said indicator means remains on as long as said counter means is operated above a predetermined rate.
Claim 9
Dependent Claim
34 words
The device of claim 6 wherein said integrating means comprises essentially a capacitor is adapted to discharge through a resistor network comprising an adjustable resistor for adjusting the time constant of said integrating means.
Claim 10
Dependent Claim
57 words
The device of claim 6, further comprising normally off indicator means and control means for said normally off indicator means connected across said capacitor for turning said indicator means on when the voltage across said capacitor reaches a predetermined value, whereby said indicator means is turned on hen said counter means is operated below a predetermined rate.
Claim 11
Dependent Claim
36 words
The device of claim 8 further comprising normally off cummulative elapse time recording means operatively adapted to be turned on by said control means, whereby said elapse time recording means provides an indication of nonproductive time.
Claim 12
Dependent Claim
21 words
The device of claim 9 further comprising additional recording means providing a permanent graphic record each time a count is registered.
Claim 13
Dependent Claim
28 words
The monitoring device of claim 6 wherein the amplitude of said first train of electrical pulses is equal to the amplitude of sAid second train of electrical pulse.
Claim 14
Dependent Claim
193 words
A production-monitoring device for a machine whose operation for producing a workpiece results in the occurrence of a first train of electrical pulses of a predetermined amplitude duration ratio followed by a second train of electrical pulses of a lower amplitude duration ratio, said device comprising integrating means comprising essentially a capacitor adapted to be charged by said pulses and to be discharged through a resistor network for defining a voltage level increasing to a maximum level corresponding to the occurrence of said first train of pulses and decreasing to a minimum level corresponding to the occurrence of said second train of pulses, normally off switch means at the output of said integrating means, enabling means for said switch means, low-voltage sensing means at the output of said integrating means for activating said enabling means upon sensing a voltage slightly above said minimum level and for turning off said switch means upon sensing a voltage slightly below said minimum level, high-voltage sensing means at the output of said integrating means for turning on said switch means upon sensing a voltage slightly below said maximum level, and utilization means activated by said switching means.
Claim 15
Dependent Claim
193 words
A production-monitoring device for a machine whose operation for producing a workpiece results in the occurrence of a first train of electrical pulses of a predetermined amplitude duration ratio followed by a second train of electrical pulses of a lower amplitude duration ratio, said device comprising integrating means comprising essentially a capacitor adapted to be charged by said pulses and to be discharged through a resistor network for defining a voltage level increasing to a maximum level corresponding to the occurrence of said first train of pulses and decreasing to a minimum level corresponding to the occurrence of said second train of pulses, normally off switch means at the output of said integrating means, enabling means for said switch means, low-voltage sensing means at the output of said integrating means for activating said enabling means upon sensing a voltage slightly above said minimum level and for turning off said switch means upon sensing a voltage slightly below said minimum level, high-voltage sensing means at the output of said integrating means for turning on said switch means upon sensing a voltage slightly below said maximum level, and utilization means activated by said switching means.
Claim 16
Dependent Claim
29 words
The production monitoring device of claim 12 wherein the amplitude of said first train of electrical pulses is equal to the amplitude of said second train of electrical pulses.
Claim 17
Dependent Claim
34 words
The device of claim 12 wherein said integrating means comprising essentially a capacitor is adapted to discharge through a resistor network comprising an adjustable resistor for adjusting the time constant of said integrating means.
Claim 18
Dependent Claim
12 words
The device of claim 12 wherein said utilization means comprises counting means.
Claim 19
Dependent Claim
31 words
The device of claim 12 wherein said utilization means comprises normally on indicator means adapted to be turned off when said switch means remains off for a predetermined period of time.
Claim 20
Dependent Claim
33 words
The device of claim 12 wherein said utilization means comprises normally off second indicator means adapted to be turned on when said switch means is turned on and off below a predetermined rate.
Claim 21
Dependent Claim
47 words
The device of claim 12 wherein said low voltage sensing means is a first relaxation oscillator biased to oscillate when said voltage reaches said low level, and said high voltage sensing means is a second relaxation oscillator biased to oscillate when said voltage reaches said high level.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |