US3240152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve apparatus
Assignee: PANTHER PUMPS AND EQUIPMENT CO
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Filing: 1964-02-21
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Granted: 1966-03-15
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Expires: 1984-02-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Frank A Bower
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:21
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/0009; F04B43/0054; F04B43/02; F04B43/06; F04B43/067
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
THE COMBINATION IN A PISTON DRIVEN DIAPHRAGM PUMP OF THE CHARACTER DESCRIBED, OF MEANS FORMING A PUMPING LIQUID AND PUMPED FLUID CHAMBERS SEPARATED BY THE DIAPHRAGM, AND PUMPING LIQUID CONTROL VALVE MEANS FOR SAID LIQUID CHAMBER MOUNTED ON THE DIAPHRAGM AND BEING MOUNTED ADJACENT THE PERIPHERY THEREOF FOR CAUSING A SUBSTANCE TO LEAVE SAID PUMPING CHAMBER PRIOR TO THE PUMPING LIQUID IN RESPONSE TO A PRESSURE DECREASE IN THE PUMPING LIQUID CHAMBER.
Claim 2
Dependent Claim
72 words
THE COMBINATION IN A PISTON DRIVEN DIAPHRAGM PUMP OF THE CHARACTER DESCRIBED, OF MEANS FORMING A PUMPING LIQUID AND PUMPED FLUID CHAMBERS SEPARATED BY THE DIAPHRAGM, AND PUMPING LIQUID CONTROL VALVE MEANS FOR SAID LIQUID CHAMBER MOUNTED ON THE DIAPHRAGM AND BEING MOUNTED ADJACENT THE PERIPHERY THEREOF FOR CAUSING A SUBSTANCE TO LEAVE SAID PUMPING CHAMBER PRIOR TO THE PUMPING LIQUID IN RESPONSE TO A PRESSURE DECREASE IN THE PUMPING LIQUID CHAMBER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |