US3292428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Test instrument for a pump
Assignee: Marquette Corp
•
Filing: 1965-07-15
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Granted: 1966-12-20
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Expires: 1985-07-15
Abstract
No abstract record available.
Inventors
- 👤 Daniel M Motl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:20
CPC Classifications
F; F02; F02D; F02D33/00; F02D33/003; F02M; F02M37/00; F02M37/0011; F02M37/0023; F02M37/0047; F04; F04B; F04B51/00; F02M37/0041; F04B2205/00; F04B2205/05; F04B2205/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A TEST INSTRUMENT FOR A FUEL PUMP FOR AN INTERNAL COMBUSTION ENGINE, SAID INSTRUMENT COMPRISING: A CASING HAVING A SINGLE PRESSURE RESPONSIVE GAUGE CALIBRATED TO INDICATE EITHER FUEL PUMP PRESSURE OR FUEL FLOW, SAID CASING HAVING A FIRST INLET PASSAGE CONNECTED TO SAID GAUGE AND ADAPTED TO BE CONNECTED TO THE OUTLET OF A FUEL PUMP TO BE TESTED, AND SAID CASING HAVING AN OUTLET PASSAGE ADAPTED TO BE CONNECTED TO AN AREA AT SUBSTANTIALLY ATMOSPHERIC PRESSURE AND CONNECTED TO SAID FIRST PASSAGE THROUGH A FIXED RESTRICTION AND A MANUALLY OPERABLE VALVE IN SERIES WITH EACH OTHER, THE SIZE OF THE RESTRICTION BEING SO RELATED TO THE CALIBRATIONS OF FUEL FLOW ON SAID PRESSURE GAUGE THAT WHEN SAID MANUALLY OPERABLE VALVE IS OPEN, SAID GAUGE INDICATES THE AMOUNT OF FUEL FLOW, SAID INSTRUMENT BEING EFFECTIVE WHEN SAID MANUALLY OPERABLE VALVE IS CLOSED TO PREVENT PASSAGE OF FUEL TO SAID OUTLET PASSAGE TO CAUSE THE PRESSURE IN SAID INLET PASSAGE AND HENCE THAT APPLIED TO SAID GAUGE TO ASSUME PUMP OUTLET PRESSURE TO CAUSE SAID GAUGE TO INDICATE PUMP OUTLET PRESSURE.
Claim 2
Dependent Claim
180 words
A TEST INSTRUMENT FOR A FUEL PUMP FOR AN INTERNAL COMBUSTION ENGINE, SAID INSTRUMENT COMPRISING: A CASING HAVING A SINGLE PRESSURE RESPONSIVE GAUGE CALIBRATED TO INDICATE EITHER FUEL PUMP PRESSURE OR FUEL FLOW, SAID CASING HAVING A FIRST INLET PASSAGE CONNECTED TO SAID GAUGE AND ADAPTED TO BE CONNECTED TO THE OUTLET OF A FUEL PUMP TO BE TESTED, AND SAID CASING HAVING AN OUTLET PASSAGE ADAPTED TO BE CONNECTED TO AN AREA AT SUBSTANTIALLY ATMOSPHERIC PRESSURE AND CONNECTED TO SAID FIRST PASSAGE THROUGH A FIXED RESTRICTION AND A MANUALLY OPERABLE VALVE IN SERIES WITH EACH OTHER, THE SIZE OF THE RESTRICTION BEING SO RELATED TO THE CALIBRATIONS OF FUEL FLOW ON SAID PRESSURE GAUGE THAT WHEN SAID MANUALLY OPERABLE VALVE IS OPEN, SAID GAUGE INDICATES THE AMOUNT OF FUEL FLOW, SAID INSTRUMENT BEING EFFECTIVE WHEN SAID MANUALLY OPERABLE VALVE IS CLOSED TO PREVENT PASSAGE OF FUEL TO SAID OUTLET PASSAGE TO CAUSE THE PRESSURE IN SAID INLET PASSAGE AND HENCE THAT APPLIED TO SAID GAUGE TO ASSUME PUMP OUTLET PRESSURE TO CAUSE SAID GAUGE TO INDICATE PUMP OUTLET PRESSURE.
References Cited (Backward Citations)
US2720782A
Cited
US2515394A
Cited
US2701968A
Cited
US2859611A
Cited
US2924971A
Cited
US3208721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |