Patent US3279391A successfully refreshed from Google Patents.
US3279391A
Expired / Lapsed
US
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Ultra-high pressure piston pump
Assignee: Electronic Communications Inc
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Filing: 1964-06-18
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Granted: 1966-10-18
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Expires: 1984-06-18
Abstract
No abstract record available.
Inventors
- 👤 Anthony J Masciopinto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:22
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/02; F04B1/04; F04B1/0404; F04B1/0426; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18248
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
IN A PUMP, A CAST METAL PUMP BODY CYLINDRICALLY APERTURED FROM TOP TO BOTTOM TO DEFINE A PUMP CHAMBER, A DOUBLE ENDED ONE-PIECE PISTON MOUNTED FOR RECIPROCTION IN THE PUMP CHAMBER INCLUDING UPPER AND LOWER PISTON HEADS AND AN APERTURED WEB JOINING THEM, A DRIVE SHAFT EXTENDING THROUGH THE PUMP BODY ACROSS THE PUMP CHAMBER AND THROUGH THE APERTURE IN THE WEB, BEARINGS ON OPPOSITE SIDES OF THE PUMP BODY FOR SAID SHAFT, ECCENTRIC DRIVING MEANS BETWEEN THE SHAFT AND THE PISTON ON BOTH SIDES OF THE WEB.
Claim 2
Dependent Claim
88 words
IN A PUMP, A CAST METAL PUMP BODY CYLINDRICALLY APERTURED FROM TOP TO BOTTOM TO DEFINE A PUMP CHAMBER, A DOUBLE ENDED ONE-PIECE PISTON MOUNTED FOR RECIPROCTION IN THE PUMP CHAMBER INCLUDING UPPER AND LOWER PISTON HEADS AND AN APERTURED WEB JOINING THEM, A DRIVE SHAFT EXTENDING THROUGH THE PUMP BODY ACROSS THE PUMP CHAMBER AND THROUGH THE APERTURE IN THE WEB, BEARINGS ON OPPOSITE SIDES OF THE PUMP BODY FOR SAID SHAFT, ECCENTRIC DRIVING MEANS BETWEEN THE SHAFT AND THE PISTON ON BOTH SIDES OF THE WEB.
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |