US3128678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus
Assignee: Honeywell Inc
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Filing: 1962-07-11
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Granted: 1964-04-14
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Expires: 1982-07-11
Abstract
No abstract record available.
Inventors
- 👤 Keith C Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:07
CPC Classifications
F; F41; F41G; F41G7/00; F41G7/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
IN A DUAL SECTION PNEUMATIC SERVOMOTOR EACH SECTION HAVING A THREE WAY VALVE BIASED TO A NORMALLY OPEN POSITION TO VENT EACH SERVOMOTOR SECTION TO ATMOSPHERE AND OPERABLE TO ANOTHER POSITION FOR APPLYING PRESSURE TO SAID SERVOMOTOR SECTION, A SOURCE OF CONTROL SIGNAL; OPERATING MEANS FOR EACH VALVE; A SOURCE OF PULSE WIDTH MODULATED ENERGY RESPONSIVE TO SAID CONTROL SIGNAL FOR ENERGIZING THE OPERATING MEANS OF SAID VALVES ALTERNATELY, A LEVER MOUNTED ON A MOVABLE PIVOT INTERMEDIATE CONNECTIONS FROM SAID LEVER TO EACH VALVE; AND MEANS SHIFTING SAID PIVOT JOINTLY ENERGIZED CONCURRENTLY WITH THE ENERGIZATION OF A VALVE OPERATING MEANS.
Claim 2
Dependent Claim
100 words
IN A DUAL SECTION PNEUMATIC SERVOMOTOR EACH SECTION HAVING A THREE WAY VALVE BIASED TO A NORMALLY OPEN POSITION TO VENT EACH SERVOMOTOR SECTION TO ATMOSPHERE AND OPERABLE TO ANOTHER POSITION FOR APPLYING PRESSURE TO SAID SERVOMOTOR SECTION, A SOURCE OF CONTROL SIGNAL; OPERATING MEANS FOR EACH VALVE; A SOURCE OF PULSE WIDTH MODULATED ENERGY RESPONSIVE TO SAID CONTROL SIGNAL FOR ENERGIZING THE OPERATING MEANS OF SAID VALVES ALTERNATELY, A LEVER MOUNTED ON A MOVABLE PIVOT INTERMEDIATE CONNECTIONS FROM SAID LEVER TO EACH VALVE; AND MEANS SHIFTING SAID PIVOT JOINTLY ENERGIZED CONCURRENTLY WITH THE ENERGIZATION OF A VALVE OPERATING MEANS.
References Cited (Backward Citations)
US2423935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |