Patent US3446211A successfully refreshed from Google Patents.
Patent US3085549A successfully refreshed from Google Patents.
US3085549A
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Apparatus for introducing fluids into pipes
Assignee: Jones and Laughlin Steel Corp
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Filing: 1961-02-15
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Granted: 1963-04-16
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Expires: 1981-02-15
Abstract
No abstract record available.
Inventors
- 👤 Kacsuta George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:01
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/14; F16K15/141; F16K15/142; B; B05; B05B; B05B13/00; B05B13/06; Y; Y10; Y10S; Y10S118/00; Y10S118/10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/788
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
107 words
APPARATUS FOR PROGRESSIVELY APPLYING FLUID TO THE INTERIOR WALLS OF SUCCESSIVE PIPE LENGTHS COMPRISING A HOLLOW MANDREL BEING LONGER THAN A LENGTH OF PIPE, FLUID DISCHARGE OPENINGS IN THE MANDREL ADJACENT TO ITS ENTRY END, A FIRST PORT IN THE MANDREL WALL SPACED FROM THE FLUID DISCHARGE MEANS, A SECOND PORT IN THE MANDREL WALL SPACED FROM THE FIRST OPENING A DISTANCE GREATER THAN A LENGTH OF PIPE, AN INTERNAL SEAL FOR THE FIRST PORT OF RESILIENT FLEXIBLE FLUID-TIGHT MATERIAL BONDED TO THE MANDREL WALL ON THE SIDE OF ITS PORT REMOTE FROM THE FLUID DISCHARGE OPENINGS AND UNDERLYING THE PORT SO AS TO FIT CLOSELY AGAINST
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |