US3126827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bridge plugs
Assignee: —
•
Filing: —
•
Granted: 1964-03-31
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Expires: 1981-03-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:39
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/13; E21B33/136
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A BRIDGE PLUG FOR THE BORE HOLE OF A WELL, WHICH BRIDGE PLUG COMPRISES: (A) A FORMABLE WALL ENGAGING ELEMENT OF IMPERVIOUS MATERIAL, WHICH ELEMENT IS OF A DIAMETER AT LEAST THE DIAMETER OF THE BORE HOLE IN WHICH IT IS TO BE USED, (1) SAID FORMABLE WALL ENGAGING ELEMENT BEING CENTRALLY APERTURED TO RECEIVE A BRIDGE PLUG MOVING MEANS, (B) RESILIENT WALL ENGAGING TINES SECURED TO SAID FORMABLE WALL ENGAGING ELEMENT, WHICH RESILIENT WALL ENGAGING TINES NORMALLY EXTEND OUTWARDLY AND DOWNWARDLY THEREFROM (C) BRIDGE PLUG MOVING MEANS ATTACHABLY CONNECTED TO SAID BRIDGE PLUG TO MOVE SAID BRIDGE PLUG INTO THE BORE HOLE OF A WELL, (D) MEANS ON THE LOWER ENDS OF SAID WALL ENGAGING TINES TO ENGAGE SAID BRIDGE PLUG MOVING MEANS TO RETAIN SAID TINES OUT OF ENGAGEMENT WITH THE WALL OF SAID BORE HOLE WHEN SAID BRIDGE PLUG MOVING MEANS IS IN ONE POSITION AND TO RELEASE SAID TINES WHEN SAID BRIDGE PLUG MOVING MEANS IS MOVED UPWARD RELATIVE TO SAID FORMABLE WALL ENGAGING ELEMENT SO AS TO RELEASE SAID TINES TO ENGAGE THE WALL OF THE BORE HOLE.
Claim 2
Dependent Claim
183 words
A BRIDGE PLUG FOR THE BORE HOLE OF A WELL, WHICH BRIDGE PLUG COMPRISES: (A) A FORMABLE WALL ENGAGING ELEMENT OF IMPERVIOUS MATERIAL, WHICH ELEMENT IS OF A DIAMETER AT LEAST THE DIAMETER OF THE BORE HOLE IN WHICH IT IS TO BE USED, (1) SAID FORMABLE WALL ENGAGING ELEMENT BEING CENTRALLY APERTURED TO RECEIVE A BRIDGE PLUG MOVING MEANS, (B) RESILIENT WALL ENGAGING TINES SECURED TO SAID FORMABLE WALL ENGAGING ELEMENT, WHICH RESILIENT WALL ENGAGING TINES NORMALLY EXTEND OUTWARDLY AND DOWNWARDLY THEREFROM (C) BRIDGE PLUG MOVING MEANS ATTACHABLY CONNECTED TO SAID BRIDGE PLUG TO MOVE SAID BRIDGE PLUG INTO THE BORE HOLE OF A WELL, (D) MEANS ON THE LOWER ENDS OF SAID WALL ENGAGING TINES TO ENGAGE SAID BRIDGE PLUG MOVING MEANS TO RETAIN SAID TINES OUT OF ENGAGEMENT WITH THE WALL OF SAID BORE HOLE WHEN SAID BRIDGE PLUG MOVING MEANS IS IN ONE POSITION AND TO RELEASE SAID TINES WHEN SAID BRIDGE PLUG MOVING MEANS IS MOVED UPWARD RELATIVE TO SAID FORMABLE WALL ENGAGING ELEMENT SO AS TO RELEASE SAID TINES TO ENGAGE THE WALL OF THE BORE HOLE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-31 | 1967-09-30 | 1968-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-31 | 1971-09-30 | 1972-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-31 | 1975-09-30 | 1976-03-31 | $7700.00 | Window Closed / Lapsed |