Patent US3093397A successfully refreshed from Google Patents.
US3093397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flange connector
Assignee: FMC Corp
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Filing: 1960-02-15
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Granted: 1963-06-11
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Expires: 1980-02-15
Abstract
No abstract record available.
Inventors
- 👤 John R Yancey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:17
CPC Classifications
F; F16; F16L; F16L39/00; E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B43/00; E21B43/14; F16L23/00; F16L23/02; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87153
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
IN A MULTIPLE TUBING STRING WELL INSTALLATION, A TUBING HEAD BONNET HAVING AN UPPER FLAT SURFACE AND A PLURALITY OF FLUID PASSAGEWAYS OPENING THROUGH SAID SURFACE AND BEING SUBSTANTIALLY EQUALLY RADIALLY SPACED FROM A PREDETERMINED CENTER; SECTOR-SHAPED FLANGES, EACH FLANGE BEING OF INTEGRAL CONSTRUCTION AND HAVING UPPER AND LOWER SURFACES, AN OUTER ARCUATE EDGE, SIDE EDGES CONVERGING FROM SAID OUTER EDGE TO AN INNER APEX, AND AN ARCUATE SHOULDER PROJECTING DOWNWARD FROM SAID OUTER EDGE, SAID FLANGES INDIVIDUALLY OVERLYING SAID PASSAGEWAYS AND BEING ASSEMBLED IN CIRCULAR FORMATION WITH SAID LOWER SURFACES SPACED UPWARDLY FROM SAID FLAT SURFACE, WITH ADJACENT SIDE EDGES OF ADJACENT FLANGES CONFRONTING EACH OTHER, WITH SAID APIECES MEETING AT SAID CENTER, AND WITH SAID SHOULDERS ENGAGING SAID FLAT SURFACE AND BEING CONCENTRIC WITH THE PASSAGEWAYS OVERLAID BY THEIR RESPECTIVE FLANGES; A VALVE TUBE CONNECTED TO EACH FLANGE CLOSELY ADJACENT TO
Claim 2
Dependent Claim
143 words
IN A MULTIPLE TUBING STRING WELL INSTALLATION, A TUBING HEAD BONNET HAVING AN UPPER FLAT SURFACE AND A PLURALITY OF FLUID PASSAGEWAYS OPENING THROUGH SAID SURFACE AND BEING SUBSTANTIALLY EQUALLY RADIALLY SPACED FROM A PREDETERMINED CENTER; SECTOR-SHAPED FLANGES, EACH FLANGE BEING OF INTEGRAL CONSTRUCTION AND HAVING UPPER AND LOWER SURFACES, AN OUTER ARCUATE EDGE, SIDE EDGES CONVERGING FROM SAID OUTER EDGE TO AN INNER APEX, AND AN ARCUATE SHOULDER PROJECTING DOWNWARD FROM SAID OUTER EDGE, SAID FLANGES INDIVIDUALLY OVERLYING SAID PASSAGEWAYS AND BEING ASSEMBLED IN CIRCULAR FORMATION WITH SAID LOWER SURFACES SPACED UPWARDLY FROM SAID FLAT SURFACE, WITH ADJACENT SIDE EDGES OF ADJACENT FLANGES CONFRONTING EACH OTHER, WITH SAID APIECES MEETING AT SAID CENTER, AND WITH SAID SHOULDERS ENGAGING SAID FLAT SURFACE AND BEING CONCENTRIC WITH THE PASSAGEWAYS OVERLAID BY THEIR RESPECTIVE FLANGES; A VALVE TUBE CONNECTED TO EACH FLANGE CLOSELY ADJACENT TO
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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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |