Patent US3226677A successfully refreshed from Google Patents.
US3226677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse ratio control system
Assignee: Individual
•
Filing: 1962-12-14
•
Granted: 1965-12-28
•
Expires: 1982-12-14
Abstract
No abstract record available.
Inventors
- 👤 Jay W Forrester
- 👤 William M Pease
- 👤 James O Mcdonough
- 👤 Alfred K Susskind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:16
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/60; G06F7/68; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/21; G05B19/25; G05B19/251; G05B19/253; G05B2219/00; G05B2219/30; G05B2219/34; G05B2219/34034
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
IN A CONTROL SYSTEM, A SEQUENTIAL SERIES OF PULSE SCALING ELEMENTS HAVING A COMMON INPUT AND AN OUTPUT ASSOCIATED WITH EACH OF SAID SCALING ELEMENTS TO PROVIDE A PLURALITY OF PULSE TRAINS OF SUCCESSIVELY DECREASING FREQUENCY AT EACH SAID OUTPUT IN INVERSE PROPORTION TO THE NUMBER OF PULSE SCALING ELEMENTS INTERPOSED BETWEEN SAID INPUT AND AN OUTPUT, AT LEAST TWO SERIES OF OUTPUT PULSE TRAIN SWITCH MEANS EACH HAVING A COMMON OUTPUT, WITH EACH SWITCH MEANS OF SAID SERIES HAVING ITS INPUT CONNECTED TO ONE ONLY OF SAID SCALING ELEMENT OUTPUTS, AND MEANS FOR SELECTIVELY OPERATING EACH OF SAID SERIES OF OUTPUT PULSE TRAIN SWITCH MEANS TO MAINTAIN EACH OF SAID SWITCH MEANS THEREOF IN A PRESELECTED CONDITION PROVIDING SUBSTANTIALLY SIMULTANEOUSLY AND INDEPENDENTLY FROM EACH OF THE OUTPUTS OF SAID SERIES OF SWITCH MEANS A SERIES OF PULSES DECREASED IN FREQUENCY RELATIVELY TO THE INPUT PULSES FED TO SAID SERIES OF PULSE SCALING ELEMENTS BY A RATIO ESTABLISHED BY THE CONDITION OF SAID SWITCH MEANS OF EACH OF SAID SERIES THEREOF.
Claim 2
Dependent Claim
171 words
IN A CONTROL SYSTEM, A SEQUENTIAL SERIES OF PULSE SCALING ELEMENTS HAVING A COMMON INPUT AND AN OUTPUT ASSOCIATED WITH EACH OF SAID SCALING ELEMENTS TO PROVIDE A PLURALITY OF PULSE TRAINS OF SUCCESSIVELY DECREASING FREQUENCY AT EACH SAID OUTPUT IN INVERSE PROPORTION TO THE NUMBER OF PULSE SCALING ELEMENTS INTERPOSED BETWEEN SAID INPUT AND AN OUTPUT, AT LEAST TWO SERIES OF OUTPUT PULSE TRAIN SWITCH MEANS EACH HAVING A COMMON OUTPUT, WITH EACH SWITCH MEANS OF SAID SERIES HAVING ITS INPUT CONNECTED TO ONE ONLY OF SAID SCALING ELEMENT OUTPUTS, AND MEANS FOR SELECTIVELY OPERATING EACH OF SAID SERIES OF OUTPUT PULSE TRAIN SWITCH MEANS TO MAINTAIN EACH OF SAID SWITCH MEANS THEREOF IN A PRESELECTED CONDITION PROVIDING SUBSTANTIALLY SIMULTANEOUSLY AND INDEPENDENTLY FROM EACH OF THE OUTPUTS OF SAID SERIES OF SWITCH MEANS A SERIES OF PULSES DECREASED IN FREQUENCY RELATIVELY TO THE INPUT PULSES FED TO SAID SERIES OF PULSE SCALING ELEMENTS BY A RATIO ESTABLISHED BY THE CONDITION OF SAID SWITCH MEANS OF EACH OF SAID SERIES THEREOF.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |