Patent US3357635A successfully refreshed from Google Patents.
US3357635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure and temperature responsive pump control
Assignee: Ford Motor Co
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Filing: 1965-12-30
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Granted: 1967-12-12
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Expires: 1985-12-30
Abstract
No abstract record available.
Inventors
- 👤 Fred E Ullery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:47
CPC Classifications
F; F04; F04D; F04D27/00; F04D27/02; F04D27/0207; F04D27/0215; F04D27/008; F04D27/0292
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A CENTRIFUGAL PUMP HAVING A BLADED ROTOR MEMBER, A HOLLOW STATOR MEMBER COOPERATING THEREWITH TO DEFINE AN ANNULAR FLUID FLOW CHAMBER THEREBETWEEN, SAID STATOR MEMBER HAVING A FLUID INLET AND OUTLET TO SAID CHAMBER, A SOURCE OF FLUID CONNECTED TO SAID INLET, AND FLUID BYPASS CONTROL MEANS IN SAID STATOR CHAMBER MOVABLE BETWEEN POSITIONS BLOCKING OR PREMITTING FLOW BETWEEN SAID INLET AND OUTLET IN ONE DIRECTION, AND MEANS FOR CONTROLLING THE MOVEMENT OF SAID BYPASS CONTROL MEANS, SAID LASTMENTIONED MEANS INCLUDING SPRING MEANS BIASING SAID CONTROL MEANS TO A FLUID BLOCKING POSITION, SAID CONTROL MEANS BEING ACTED UPON BY THE FLUID UNDER PRESSURE AT SAID OUTLET AND MOVED ABOVE A PREDETERMINED FLUID PRESSURE TOWARDS THE BYPASS FLUID FLOW-PERMITTING POSITION, AND TEMPERATURE RESPONSIVE MEANS MOVABLE IN RESPONSE TO A RISE IN TEMPERATURE OF SAID FLUID TO DECREASE THE FORCE OF SAID SPRING MEANS AND PERMIT A PRESSURE LOWER THAN SAID PREDETERMINED FLUID PRESSURE TO MOVE SAID CONTROL MEANS TO ITS BYPASS FLOW-PERMITTING POSITION.
Claim 2
Dependent Claim
162 words
A CENTRIFUGAL PUMP HAVING A BLADED ROTOR MEMBER, A HOLLOW STATOR MEMBER COOPERATING THEREWITH TO DEFINE AN ANNULAR FLUID FLOW CHAMBER THEREBETWEEN, SAID STATOR MEMBER HAVING A FLUID INLET AND OUTLET TO SAID CHAMBER, A SOURCE OF FLUID CONNECTED TO SAID INLET, AND FLUID BYPASS CONTROL MEANS IN SAID STATOR CHAMBER MOVABLE BETWEEN POSITIONS BLOCKING OR PREMITTING FLOW BETWEEN SAID INLET AND OUTLET IN ONE DIRECTION, AND MEANS FOR CONTROLLING THE MOVEMENT OF SAID BYPASS CONTROL MEANS, SAID LASTMENTIONED MEANS INCLUDING SPRING MEANS BIASING SAID CONTROL MEANS TO A FLUID BLOCKING POSITION, SAID CONTROL MEANS BEING ACTED UPON BY THE FLUID UNDER PRESSURE AT SAID OUTLET AND MOVED ABOVE A PREDETERMINED FLUID PRESSURE TOWARDS THE BYPASS FLUID FLOW-PERMITTING POSITION, AND TEMPERATURE RESPONSIVE MEANS MOVABLE IN RESPONSE TO A RISE IN TEMPERATURE OF SAID FLUID TO DECREASE THE FORCE OF SAID SPRING MEANS AND PERMIT A PRESSURE LOWER THAN SAID PREDETERMINED FLUID PRESSURE TO MOVE SAID CONTROL MEANS TO ITS BYPASS FLOW-PERMITTING POSITION.
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) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |