US3587782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic fluid injector
Assignee: Olin Corp
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Filing: 1969-03-07
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Granted: 1971-06-28
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Expires: 1989-03-07
Abstract
Abstract A FLUID INJECTOR INCLUDING A HOUSING HAVING A PISTON THEREIN DIVIDING THE INTERIOR OF THE HOUSING INTO FIRST AND SECOND CHAMBERS. THE HOUSING INCLUDES A FIRST PORT ADAPTED TO NECTION WITH THE FIRST CHAMBER AND A SECOND PORT ADAPTED TO COMMUNICATE WITH THE SECOND CHAMBER. A VALVE IS INCLUDED FOR PROVIDING COMMUNICATION BETWEEN THE TWO CHAMBERS AS THE PISTON MOVES FROM ITS FIRST NORMAL POSITION TO ITS SECOND DRIVEN POSITION. ADDITIONAL VALVE MEANS ARE PROVIDED IN THE HOUSING BETWEEN THE SECOND PORT AND THE SECOND CHAMBER PROVIDE COMMUNICATION THEREBETWEEN WHEN THE PISTON MOVES FROM ITS DRIVEN POSITION TO ITS FIRST NORMAL POSITION.
Inventors
- 👤 Lowell L Russell
- 👤 Donald E Bender
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:14
CPC Classifications
F; F02; F02N; F02N7/00; F02N7/08; F01; F01M; F01M1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |