Patent US4288053A successfully refreshed from Google Patents.
Patent US3107623A successfully refreshed from Google Patents.
US3107623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable discharge pump
Assignee: Individual
•
Filing: 1961-08-10
•
Granted: 1963-10-22
•
Expires: 1981-08-10
Abstract
No abstract record available.
Inventors
- 👤 Budzich Tadeusz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:53
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/12; F04B1/26; F04B1/28; F04B1/14; F04B1/18; F04B53/00; F04B53/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN A PUMP HAVING A HOUSING AND AT LEAST ONE CYLINDER BORE, A PISTON ARRANGED FOR RECIPROCATION IN EACH CYLINDER BORE AND DRIVE MEANS TO RECIPROCATE EACH PISTON, A LOW PRESSURE INLET MANIFOLD AND HIGH PRESSURE DISCHARGE MANIFOLD, A PRESSURE RESPONSIVE HIGH PRESSURE MANIFOLD CHECK VALVE BETWEEN EACH CYLINDER BORE AND SAID DISCHARGE MANIFOLD, THE IMPROVEMENT WHICH COMPRISES, FLUID COUNDUCTING MEANS BETWEEN EACH CYLINDER BORE AND SAID LOW PRESSURE INLET MANIFOLD, PRESSURE RESPONSIVE SHUT-OFF MEANS TO CLOSE SAID FLUID CONDUCTING MEANS, CONTROL MEANS INTERPOSED BETWEEN SAID SHUT-OFF MEANS AND SAID LOW PRESSURE MANIFOLD MEANS TO SELECTIVELY ACTUATE SAID PRESSURE RESPONSIVE SHUT-OFF MEANS, AND MEANS OPERATIVELY CONNECTING SAID CONTROL MEANS TO SAID DRIVE MEANS TO TIME THE ACTUATION OF SAID SHUT-OFF
Claim 2
Dependent Claim
120 words
IN A PUMP HAVING A HOUSING AND AT LEAST ONE CYLINDER BORE, A PISTON ARRANGED FOR RECIPROCATION IN EACH CYLINDER BORE AND DRIVE MEANS TO RECIPROCATE EACH PISTON, A LOW PRESSURE INLET MANIFOLD AND HIGH PRESSURE DISCHARGE MANIFOLD, A PRESSURE RESPONSIVE HIGH PRESSURE MANIFOLD CHECK VALVE BETWEEN EACH CYLINDER BORE AND SAID DISCHARGE MANIFOLD, THE IMPROVEMENT WHICH COMPRISES, FLUID COUNDUCTING MEANS BETWEEN EACH CYLINDER BORE AND SAID LOW PRESSURE INLET MANIFOLD, PRESSURE RESPONSIVE SHUT-OFF MEANS TO CLOSE SAID FLUID CONDUCTING MEANS, CONTROL MEANS INTERPOSED BETWEEN SAID SHUT-OFF MEANS AND SAID LOW PRESSURE MANIFOLD MEANS TO SELECTIVELY ACTUATE SAID PRESSURE RESPONSIVE SHUT-OFF MEANS, AND MEANS OPERATIVELY CONNECTING SAID CONTROL MEANS TO SAID DRIVE MEANS TO TIME THE ACTUATION OF SAID SHUT-OFF
References Cited (Backward Citations)
FR436634A
Cited
GB459578A
Cited
US2160978A
Cited
US2845029A
Cited
US2744467A
Cited
US2928352A
Cited
US3029737A
Cited
US2940396A
Cited
US2988010A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |