US3285182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm metering pump
Assignee: Individual
•
Filing: 1964-12-17
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Granted: 1966-11-15
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Expires: 1984-12-17
Abstract
No abstract record available.
Inventors
- 👤 Harry E Pinkerton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:39
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/02; F04B43/06; F04B43/067; F04B49/00; F04B49/22; F04B49/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A HYDRAULICALLY ACTUATED DIAPHRAGM PUMP COMPRISING: A PUMP HOUSING INCLUDING A DIAPHRAGM CHAMBER, AN INTERCONNECTION PISTON CYLINDER CHAMBER AND A PUMP LIQUID RESERVOIR ADAPTED TO BE CONNECTED WITH BOTH OF THE CHAMBERS, A PUMPING HEAD COUPLED WITH THE DIAPHRAGM CHAMBER, A FLEXIBLE DIAPHRAGM EXTENDED ACROSS THE DIAPHRAGM CHAMBER AND ADAPTED TO BE FLEXED IN A PUMPING DIRECTION A PUMP A SOLUTION FROM THE PUMPING HEAD AND IN A SUCTION DIRECTION TO SUCH THE SOLUTION INTO THE PUMPING HEAD, A PISTON ASSEMBLY EXTENDING INTO THE PUMP LIQUID RESERVOIR RECIPROCALLY MOUNTED IN THE PISTON CYLINDER AND ADAPTED TO BE RECIPROCATED IN A FORWARD DIRECTION
Claim 2
Dependent Claim
102 words
A HYDRAULICALLY ACTUATED DIAPHRAGM PUMP COMPRISING: A PUMP HOUSING INCLUDING A DIAPHRAGM CHAMBER, AN INTERCONNECTION PISTON CYLINDER CHAMBER AND A PUMP LIQUID RESERVOIR ADAPTED TO BE CONNECTED WITH BOTH OF THE CHAMBERS, A PUMPING HEAD COUPLED WITH THE DIAPHRAGM CHAMBER, A FLEXIBLE DIAPHRAGM EXTENDED ACROSS THE DIAPHRAGM CHAMBER AND ADAPTED TO BE FLEXED IN A PUMPING DIRECTION A PUMP A SOLUTION FROM THE PUMPING HEAD AND IN A SUCTION DIRECTION TO SUCH THE SOLUTION INTO THE PUMPING HEAD, A PISTON ASSEMBLY EXTENDING INTO THE PUMP LIQUID RESERVOIR RECIPROCALLY MOUNTED IN THE PISTON CYLINDER AND ADAPTED TO BE RECIPROCATED IN A FORWARD DIRECTION
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |