US3269319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic accumulator actuated pump control means
Assignee: Catalent Pharma Solutions Inc
•
Filing: 1964-04-30
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Granted: 1966-08-30
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Expires: 1984-04-30
Abstract
No abstract record available.
Inventors
- 👤 Adam P Dargas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:13
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/20; F04B11/00; F04B11/0008; F04B11/0033; F04B49/02; F04B49/022; F04B49/22; F04B49/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
AUTOMATIC ACCUMULATOR ACTUATED PUMP CONTROL MEANS OF THE CHARACTER DESCRIBED COMPRISING A VARIABLE VOLUME ACCUMULATOR RECEIVING LIQUID FROM A PUMP WHICH HAS A MOTOR FOR OPERATING THE PUMP, SAID ACCUMULATOR INCLUDING A CYLINDER RECEIVING THE LIQUID, A PISTON IN SAID CYLINDER, PRELOADED SPRING MEANS BIASING SAID PISTON TO A POSITION OF MINIMUM VOLUME, A NORMALLY OPEN LIMIT SWITCH ADAPTED TO BE CLOSED BY PREDETERMINED MOVEMENT OF SAID PISTON IN OPPOSITION TO THE BIAS OF SAID SPRING MEANS, SAID LIMIT SWITCH BEING IN CIRCUIT WITH THE MOTOR, A STARTING SWITCH SHUNTING SAID LIMIT SWITCH, SAID ACCUMULATOR HAVING A SECOND PISTON OPPOSED TO SAID FIRST MENTIONED PISTON, AND A SECOND PRELOADED SPRING MEANS BIASING SAID SECOND PISTON TO THE MINIMUM-VOLUME POSITION.
Claim 2
Dependent Claim
119 words
AUTOMATIC ACCUMULATOR ACTUATED PUMP CONTROL MEANS OF THE CHARACTER DESCRIBED COMPRISING A VARIABLE VOLUME ACCUMULATOR RECEIVING LIQUID FROM A PUMP WHICH HAS A MOTOR FOR OPERATING THE PUMP, SAID ACCUMULATOR INCLUDING A CYLINDER RECEIVING THE LIQUID, A PISTON IN SAID CYLINDER, PRELOADED SPRING MEANS BIASING SAID PISTON TO A POSITION OF MINIMUM VOLUME, A NORMALLY OPEN LIMIT SWITCH ADAPTED TO BE CLOSED BY PREDETERMINED MOVEMENT OF SAID PISTON IN OPPOSITION TO THE BIAS OF SAID SPRING MEANS, SAID LIMIT SWITCH BEING IN CIRCUIT WITH THE MOTOR, A STARTING SWITCH SHUNTING SAID LIMIT SWITCH, SAID ACCUMULATOR HAVING A SECOND PISTON OPPOSED TO SAID FIRST MENTIONED PISTON, AND A SECOND PRELOADED SPRING MEANS BIASING SAID SECOND PISTON TO THE MINIMUM-VOLUME POSITION.
References Cited (Backward Citations)
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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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |