US3211102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self priming pump and automatic primer valve therefor
Assignee: Hudson Engineering Co
•
Filing: 1963-07-18
•
Granted: 1965-10-12
•
Expires: 1983-07-18
Abstract
No abstract record available.
Inventors
- 👤 Donald J Keehan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:37
CPC Classifications
F; F04; F04D; F04D9/00; F04D9/007; F16; F16K; F16K15/00; F16K15/02; F16K15/03; F16K15/14; F16K15/1401; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7847; Y10T137/7898
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
AN AUTOMATIC PRIMER VALVE FOR USE ON A LIQUID PUMP COMPRISING, (A) A VALVE HOUSING ADAPTED TO BE MOUNTED TO THE OUTLET OF PUMP, (B) SAID HOUSING BEING FORMED OF COMPLEMENTARY SECTIONS DEFINING DISCHARGE PASSAGEWAY IN COMMUNICATION WITH THE PUMP OUTLET, (C) MEANS DEFINING A PORT EXTENDING THROUGH A WALL PORTION OF EACH SECTION, (D) SAID PORT BEING IN COMMUNICATION WITH SAID DISCHARGE PASSAGEWAY OF SAID HOUSING, (E) AND VALVING MEANS PIVOTALLY MOUNTED TO EACH SECTIION WITHIN THE PASSAGEWAY DEFINED THEREBY FOR VALVING SAID PORTS SUBSTANTIALLY CLOSED DURING THE NORMAL PUMPING OPERATION OF THE PUMP AND FOR VALVING SAID PASSAGEWAY CLOSE AND OPENING SAID PORTS UPON CEASATION OF A NORMAL PUMPING OPERATION SO AS TO EFFECT A PRIMING OF THE PUMP.
Claim 2
Dependent Claim
121 words
AN AUTOMATIC PRIMER VALVE FOR USE ON A LIQUID PUMP COMPRISING, (A) A VALVE HOUSING ADAPTED TO BE MOUNTED TO THE OUTLET OF PUMP, (B) SAID HOUSING BEING FORMED OF COMPLEMENTARY SECTIONS DEFINING DISCHARGE PASSAGEWAY IN COMMUNICATION WITH THE PUMP OUTLET, (C) MEANS DEFINING A PORT EXTENDING THROUGH A WALL PORTION OF EACH SECTION, (D) SAID PORT BEING IN COMMUNICATION WITH SAID DISCHARGE PASSAGEWAY OF SAID HOUSING, (E) AND VALVING MEANS PIVOTALLY MOUNTED TO EACH SECTIION WITHIN THE PASSAGEWAY DEFINED THEREBY FOR VALVING SAID PORTS SUBSTANTIALLY CLOSED DURING THE NORMAL PUMPING OPERATION OF THE PUMP AND FOR VALVING SAID PASSAGEWAY CLOSE AND OPENING SAID PORTS UPON CEASATION OF A NORMAL PUMPING OPERATION SO AS TO EFFECT A PRIMING OF THE PUMP.
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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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |