Patent US3594643A successfully refreshed from Google Patents.
US3594643A
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US
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Electrical timing apparatus with interruptible time presentation
Assignee: Data Time Inc
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Filing: 1969-05-22
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Granted: 1971-07-20
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Expires: 1989-05-22
Abstract
Abstract Electronic timing apparatus which, upon being started, maintains and normally presents for observation a running indication of the elapsed time of an event. The apparatus includes circuitry which may be triggered in response to some selected occurrence during the event to produce a short term interruption in the running time presentation, whereby the particular time presentation marking the occurrence is sustained for observation. After such an interruption, the time presentation automatically updates and continues to run.
Inventors
- 👤 Theodore R Hunt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:27
CPC Classifications
G; G04; G04F; G04F10/00; G04F10/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
170 words
Electronic timing apparatus comprising oscillator means for producing electrical pulses; timer means operatively connected to said oscillator means including at least one counting circuit adapted to receive pulses from said oscillator means, and operable to maintain a running count of the number of pulses so received with the particular count existing at any given time stored in the circuit, and an indicator circuit operatively connected to said counting circuit placeable alternately and repeatedly in two different operating conditions during operation of said counting circuit, said indicator circuit when placed in one of said operating conditions presenting a running indication of the current total number of pulses counted by the counting circuit, and when placed in the other operating condition presenting a sustained indication of the total number of pulses counted by the counting circuit up to the time of such placement of the indicator circuit in said other operating condition; and change-condition circuit means operatively connected to said indicator circuit operable to change the operating condition of the indicator circuit.
Claim 2
Dependent Claim
170 words
Electronic timing apparatus comprising oscillator means for producing electrical pulses; timer means operatively connected to said oscillator means including at least one counting circuit adapted to receive pulses from said oscillator means, and operable to maintain a running count of the number of pulses so received with the particular count existing at any given time stored in the circuit, and an indicator circuit operatively connected to said counting circuit placeable alternately and repeatedly in two different operating conditions during operation of said counting circuit, said indicator circuit when placed in one of said operating conditions presenting a running indication of the current total number of pulses counted by the counting circuit, and when placed in the other operating condition presenting a sustained indication of the total number of pulses counted by the counting circuit up to the time of such placement of the indicator circuit in said other operating condition; and change-condition circuit means operatively connected to said indicator circuit operable to change the operating condition of the indicator circuit.
Claim 3
Dependent Claim
85 words
Electronic timing apparatus comprising a pulser for producing electrical pulses, a counter operatively connected to said pulser for receiving pulses therefrom, operable to produce a running count reflecting the total number of pulses received, an indicator, and means for alternatively coupling and uncoupling said indicator and counter, said indicator being constructed to present a running indication of the current count in said counter when coupled to the same, and to present a sustained indication of the last count so indicated when uncoupled from the counter.
Claim 4
Dependent Claim
85 words
Electronic timing apparatus comprising a pulser for producing electrical pulses, a counter operatively connected to said pulser for receiving pulses therefrom, operable to produce a running count reflecting the total number of pulses received, an indicator, and means for alternatively coupling and uncoupling said indicator and counter, said indicator being constructed to present a running indication of the current count in said counter when coupled to the same, and to present a sustained indication of the last count so indicated when uncoupled from the counter.
Claim 5
Dependent Claim
104 words
Electronic timing apparatus comprising a pulser for producing electrical pulses, a counter operatively connected to said pulser for receiving pulses therefrom, operable to produce a running count reflecting the total number of pulses received, and an interruptible, automatically updatable indicator adapted for intermittent coupling to said counter, constructed whereby, during operation of the counter, whenever the indicator is uncoupled from the counter it presents a sustained indication of the last count in the counter at the time of such uncoupling, and whenever the indicator is coupled to the counter it automatically updates and presents a running indication of the current count in the counter.
Claim 6
Dependent Claim
104 words
Electronic timing apparatus comprising a pulser for producing electrical pulses, a counter operatively connected to said pulser for receiving pulses therefrom, operable to produce a running count reflecting the total number of pulses received, and an interruptible, automatically updatable indicator adapted for intermittent coupling to said counter, constructed whereby, during operation of the counter, whenever the indicator is uncoupled from the counter it presents a sustained indication of the last count in the counter at the time of such uncoupling, and whenever the indicator is coupled to the counter it automatically updates and presents a running indication of the current count in the counter.
References Cited (Backward Citations)
US2351707A
Cited
US3263168A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |