Patent US3174679A successfully refreshed from Google Patents.
US3174679A
Expired / Lapsed
US
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Ejecting apparatus
Assignee: Ingersoll Rand Co
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Filing: 1963-04-04
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Granted: 1965-03-23
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Expires: 1983-04-04
Abstract
No abstract record available.
Inventors
- 👤 Robert J Stoker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:10
CPC Classifications
F; F04; F04F; F04F5/00; F04F5/44; F04F5/46; F04F5/467; F04F5/464; F04F5/466
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
AN EJECTING APPARATUS COMPRISING: (A) A FIRST EJECTOR HAVING AN INNER WALL FORMING A CONVERGENT-DIVERGENT PASSAGE FOR FLUID, (B) A SECOND EJECTOR POSITIONED ABOUT SAID FIRST EJECTOR AND HAVING AN INNER WALL FORMED TO COOPERATE WITH THE OUTER WALL OF SAID FIRST EJECTOR TO FORM A CONVERGENT-DIVERGENT PASSAGE FOR FLUID ABOUT SAID FIRST EJECTOR, (C) EACH OF SAID CONVERGENT-DIVERGENT PASSAGES HAVING AN INLET END AND A DISCHARGE END AND POSITIONED SUCH THAT THE INLET END OF SAID FIRST EJECTOR IS ADJACENT TO THE DISCHARGE END OF SAID SECOND EJECTOR, (D) WALL MEANS TO DEFINE WITH SAID FIRST AND SAID SECOND EJECTORS A PASSAGE COMMUNICATING THE DISCHARGE END OF THE FIRST EJECTOR WITH THE INLET END OF THE SECOND EJECTOR TO CONVEY THE FLOW OF FLUID FROM THE FIRST EJECTOR TO THE SECOND EJECTOR, AND (E) MEANS FOR SUPPLYING MOTIVE FLUID TO EACH OF SAID FIRST AND SECOND EJECTORS.
Claim 2
Dependent Claim
148 words
AN EJECTING APPARATUS COMPRISING: (A) A FIRST EJECTOR HAVING AN INNER WALL FORMING A CONVERGENT-DIVERGENT PASSAGE FOR FLUID, (B) A SECOND EJECTOR POSITIONED ABOUT SAID FIRST EJECTOR AND HAVING AN INNER WALL FORMED TO COOPERATE WITH THE OUTER WALL OF SAID FIRST EJECTOR TO FORM A CONVERGENT-DIVERGENT PASSAGE FOR FLUID ABOUT SAID FIRST EJECTOR, (C) EACH OF SAID CONVERGENT-DIVERGENT PASSAGES HAVING AN INLET END AND A DISCHARGE END AND POSITIONED SUCH THAT THE INLET END OF SAID FIRST EJECTOR IS ADJACENT TO THE DISCHARGE END OF SAID SECOND EJECTOR, (D) WALL MEANS TO DEFINE WITH SAID FIRST AND SAID SECOND EJECTORS A PASSAGE COMMUNICATING THE DISCHARGE END OF THE FIRST EJECTOR WITH THE INLET END OF THE SECOND EJECTOR TO CONVEY THE FLOW OF FLUID FROM THE FIRST EJECTOR TO THE SECOND EJECTOR, AND (E) MEANS FOR SUPPLYING MOTIVE FLUID TO EACH OF SAID FIRST AND SECOND EJECTORS.
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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |