US3191969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flange coupling
Assignee: —
•
Filing: —
•
Granted: 1965-06-29
•
Expires: 1982-06-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:03
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/02; F16L23/036; F16L23/04; F16L23/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A FLANGE COUPLING FOR PIPES COMPRISING IN COMBINATION A PAIR OF FLANGES AT LEAST ONE HAVING SPACED HOLES THEREIN, A YOKE MEMBER AT EACH OF SID SPACED HOLES HAVING A CONICAL NECK ADAPTED TO ENTER SID HOLES, AN EXPANISBLE ANNULAR TOOTHED RING SURROUNDING THE CONICAL NECK AND HAVING A DIAMETER SLIGHTLY SMALLER THAN THE BOLT HOLE, MEANS ON THE NECK FOR URGING THE ANNULAR RING ONTO THE CONICAL NECK TO EXPAND THE RING INTO ENGAGMENT WITH THE INTERIOR OF THE BOLT HOLE, A C-CLAMP MEMBER PIVOTED AT ONE LEG IN EACH YOKE ADAPTED TO PIVOT OVER THE FLANGES WITH A LEG ON EACH OPPOSITE SIDE OF THE PAIR OF FLANGES AND SCREW MEANS IN THE OTHER LEG OF THE CCLAMP MEMBER MOVABLE ON THE AXIS OF THE BOLT HOLE TO EXERT PRESSURE BETWEEN THE LEGS OF THE C-CLAMP ON THE TWO FLANGES TO URGE THEM TOGETHER.
Claim 2
Dependent Claim
146 words
A FLANGE COUPLING FOR PIPES COMPRISING IN COMBINATION A PAIR OF FLANGES AT LEAST ONE HAVING SPACED HOLES THEREIN, A YOKE MEMBER AT EACH OF SID SPACED HOLES HAVING A CONICAL NECK ADAPTED TO ENTER SID HOLES, AN EXPANISBLE ANNULAR TOOTHED RING SURROUNDING THE CONICAL NECK AND HAVING A DIAMETER SLIGHTLY SMALLER THAN THE BOLT HOLE, MEANS ON THE NECK FOR URGING THE ANNULAR RING ONTO THE CONICAL NECK TO EXPAND THE RING INTO ENGAGMENT WITH THE INTERIOR OF THE BOLT HOLE, A C-CLAMP MEMBER PIVOTED AT ONE LEG IN EACH YOKE ADAPTED TO PIVOT OVER THE FLANGES WITH A LEG ON EACH OPPOSITE SIDE OF THE PAIR OF FLANGES AND SCREW MEANS IN THE OTHER LEG OF THE CCLAMP MEMBER MOVABLE ON THE AXIS OF THE BOLT HOLE TO EXERT PRESSURE BETWEEN THE LEGS OF THE C-CLAMP ON THE TWO FLANGES TO URGE THEM TOGETHER.
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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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |