US3414004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film injector
Assignee: Pan American Petroleum Corp
•
Filing: 1966-05-16
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Granted: 1968-12-03
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Expires: 1986-05-16
Abstract
No abstract record available.
Inventors
- 👤 Dale M Bankston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:15
CPC Classifications
F; F15; F15D; F15D1/00; F15D1/02; F15D1/06; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0391; Y10T137/4238
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
APPARATUS FOR FORMING FILM OF A FIRST LIQUID ON THE INTERNAL SURFACE OF A CONDUIT THROUGH WHICH A SECOND LIQUID FLOWS, SAID APPARATUS COMPRISING: AN OUTER HOUSING CONNECTED INTO AND ALIGNED WITH A STRAIGHT SECTION OF SAID CONDUIT, A SLEEVE WITHIN SAID HOUSING, SAID SLEEVE BEING OF SUBSTANTIALLY UNIFORM DIAMETER, BEING OPEN TO THE FLOW OF SAID SECOND LIQUID THROUGH SAID SLEEVE, AND BEING SPACED FROM AND SUBSTANTIALLY PARALLEL TO THE INNER SURFACE OF SAID HOUSING, AT LEAST NEAR DOWNSTREAM END OF SAID SLEEVE, TO FORM AN ANNULAR CHANNEL BETWEEN SAID SLEEVE AND SAID HOUSING AT THE UPA SEAL BETWEEN SAID SLEEVE AND SAID HOUSING AT THE UPSTREAM END OF SAID SLEEVE, AND MEANS FOR INTRODUCING SAID FIRST LIQUID INTO SAID ANNULAR CHANNEL AND CAUSING FLOW OF SAID FIRST LIQUID THROUGH SAID FLOW CHANNEL, THE DOWNSTREAM END OF SAID SLEEVE BEING PARALLEL TO SAID HOUSING FOR A DISTANCE EQUAL TO AT LEAST THE INTERNAL DIAMETER OF SAID SLEEVE TO CAUSE SUBSTANTIALLY PARALLEL FLOW OF SAID FIRST AND SECOND LIQUIDS AT THE DOWNSTREAM END OF SAID SLEEVE WHERE THE LIQUIDS MEET.
Claim 2
Dependent Claim
180 words
APPARATUS FOR FORMING FILM OF A FIRST LIQUID ON THE INTERNAL SURFACE OF A CONDUIT THROUGH WHICH A SECOND LIQUID FLOWS, SAID APPARATUS COMPRISING: AN OUTER HOUSING CONNECTED INTO AND ALIGNED WITH A STRAIGHT SECTION OF SAID CONDUIT, A SLEEVE WITHIN SAID HOUSING, SAID SLEEVE BEING OF SUBSTANTIALLY UNIFORM DIAMETER, BEING OPEN TO THE FLOW OF SAID SECOND LIQUID THROUGH SAID SLEEVE, AND BEING SPACED FROM AND SUBSTANTIALLY PARALLEL TO THE INNER SURFACE OF SAID HOUSING, AT LEAST NEAR DOWNSTREAM END OF SAID SLEEVE, TO FORM AN ANNULAR CHANNEL BETWEEN SAID SLEEVE AND SAID HOUSING AT THE UPA SEAL BETWEEN SAID SLEEVE AND SAID HOUSING AT THE UPSTREAM END OF SAID SLEEVE, AND MEANS FOR INTRODUCING SAID FIRST LIQUID INTO SAID ANNULAR CHANNEL AND CAUSING FLOW OF SAID FIRST LIQUID THROUGH SAID FLOW CHANNEL, THE DOWNSTREAM END OF SAID SLEEVE BEING PARALLEL TO SAID HOUSING FOR A DISTANCE EQUAL TO AT LEAST THE INTERNAL DIAMETER OF SAID SLEEVE TO CAUSE SUBSTANTIALLY PARALLEL FLOW OF SAID FIRST AND SECOND LIQUIDS AT THE DOWNSTREAM END OF SAID SLEEVE WHERE THE LIQUIDS MEET.
References Cited (Backward Citations)
US2821205A
Cited
US3040760A
Cited
US2924950A
Cited
US3196947A
Cited
US3175571A
Cited
US3307567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |