Patent US3339804A successfully refreshed from Google Patents.
US3339804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plural source fluid metering assembly with discharge assistant for each source
Assignee: York Instrument Corp
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Filing: 1965-09-17
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Granted: 1967-09-05
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Expires: 1985-09-17
Abstract
No abstract record available.
Inventors
- 👤 Robert E Bader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:50
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; G01N1/38; G01N2001/382
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A METERING ASSEMBLY COMPRISING A CYLINDER HAVING SIDE WALLS DEFINING A CHAMBER AND HAVING AN INLET TO SAID CHAMBER, A FIRST PISTON MOVABLE IN DIRECTIONS INTO AND OUT FROM SAID CHAMBER, A SECOND PISTON MOVABLE THROUGH SAID FIRST PISTON IN DIRECTIONS INTO AND OUT FROM SAID CHAMBER MEANS FOR SEALING SAID FIRST PISTON RELATIVE TO SAID CYLINDER AND SEALING SAID SECOND PISTON RELATIVE TO SAID FIRST PISTON, A VALVE MEANS IN FLUID COMMUNICATION WITH SAID INLET, MEANS CONNECTING SAID VALVE MEANS TO FIRST AND SECOND SUPPLY TUBES RESPECTIVELY, SAID VALVE MEANS CONNECTING SAID INLET TO SAID FIRST AND SECOND SUPPLY TUBES RESPECTIVELY IN ACCORDANCE WITH A PREDETERMINED SCHEDULE, AND MEANS FOR MOVING SAID FIRST AND SECOND PISTONS RESPECTIVELY IN ACCORDANCE WITH A PREDETERMINED SCHEDULE.
Claim 2
Dependent Claim
124 words
A METERING ASSEMBLY COMPRISING A CYLINDER HAVING SIDE WALLS DEFINING A CHAMBER AND HAVING AN INLET TO SAID CHAMBER, A FIRST PISTON MOVABLE IN DIRECTIONS INTO AND OUT FROM SAID CHAMBER, A SECOND PISTON MOVABLE THROUGH SAID FIRST PISTON IN DIRECTIONS INTO AND OUT FROM SAID CHAMBER MEANS FOR SEALING SAID FIRST PISTON RELATIVE TO SAID CYLINDER AND SEALING SAID SECOND PISTON RELATIVE TO SAID FIRST PISTON, A VALVE MEANS IN FLUID COMMUNICATION WITH SAID INLET, MEANS CONNECTING SAID VALVE MEANS TO FIRST AND SECOND SUPPLY TUBES RESPECTIVELY, SAID VALVE MEANS CONNECTING SAID INLET TO SAID FIRST AND SECOND SUPPLY TUBES RESPECTIVELY IN ACCORDANCE WITH A PREDETERMINED SCHEDULE, AND MEANS FOR MOVING SAID FIRST AND SECOND PISTONS RESPECTIVELY IN ACCORDANCE WITH A PREDETERMINED SCHEDULE.
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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |