US3148622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water system
Assignee: Ametek Inc
•
Filing: 1960-12-16
•
Granted: 1964-09-15
•
Expires: 1980-12-16
Abstract
No abstract record available.
Inventors
- 👤 Ambrose E Van Le
- 👤 Siegfried H A Schmaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:00
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/16; F04D15/00; F04D15/02; F04D15/0209
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
IN A PRESSURIZED FLUID SUPPLY SYSTEM HAVING A MOTOR AND A PUMP DRIVEN BY SAID MOTOR FOR SUPPLYING FLUID TO SAID SYSTEM, A POWER SUPPLY TO SAID MOTOR, A SWITCH FOR ENERGIZING SAID MOTOR UPON AN INDICATION OF FLUID NEED IN SAID SYSTEM, A SECOND SWITCH IN THE POWER SUPPLY TO SAID MOTOR AND WHICH IS NORMALLY CLOSED AND A PUMPED FLUID DELIVERY INDICATOR IN SAID SYSTEM ON THE DISCHARGE SIDE OF SAID PUMP, THE INVENTION COMPRISING MEANS ACTUATED BY SAID INDICATOR AND AFTER A TIME DELAY FOR PERIODICALLY OPENING SAID SECOND SWITCH AND STOPPING SAID MOTOR ON A PREDETERMINED SCHEDULE CONTINUOUSLY REPEATED SO LONG AS THERE IS A NEED OF FLUID IN SAID SYSTEM, SAID MEANS INCLUDING A MOTOR DRIVEN CAM AND FOLLOWER ARRANGED TO CONTINUOUSLY OPEN AND CLOSE SAID SECOND SWITCH ON SAID PREDETERMINED SCHEDULE.
Claim 2
Dependent Claim
137 words
IN A PRESSURIZED FLUID SUPPLY SYSTEM HAVING A MOTOR AND A PUMP DRIVEN BY SAID MOTOR FOR SUPPLYING FLUID TO SAID SYSTEM, A POWER SUPPLY TO SAID MOTOR, A SWITCH FOR ENERGIZING SAID MOTOR UPON AN INDICATION OF FLUID NEED IN SAID SYSTEM, A SECOND SWITCH IN THE POWER SUPPLY TO SAID MOTOR AND WHICH IS NORMALLY CLOSED AND A PUMPED FLUID DELIVERY INDICATOR IN SAID SYSTEM ON THE DISCHARGE SIDE OF SAID PUMP, THE INVENTION COMPRISING MEANS ACTUATED BY SAID INDICATOR AND AFTER A TIME DELAY FOR PERIODICALLY OPENING SAID SECOND SWITCH AND STOPPING SAID MOTOR ON A PREDETERMINED SCHEDULE CONTINUOUSLY REPEATED SO LONG AS THERE IS A NEED OF FLUID IN SAID SYSTEM, SAID MEANS INCLUDING A MOTOR DRIVEN CAM AND FOLLOWER ARRANGED TO CONTINUOUSLY OPEN AND CLOSE SAID SECOND SWITCH ON SAID PREDETERMINED SCHEDULE.
References Cited (Backward Citations)
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US1784205A
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US2707440A
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US2981195A
Cited
US3050003A
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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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |