US3189044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure differential operated safety valve
Assignee: Individual
•
Filing: 1963-04-09
•
Granted: 1965-06-15
•
Expires: 1983-04-09
Abstract
No abstract record available.
Inventors
- 👤 Phillip S Sizer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:59
CPC Classifications
E; E21; E21B; E21B34/00; E21B34/06; E21B34/08; E21B2200/00; E21B2200/04; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7785
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
A WELL TOOL FOR CONTROLLING FLOW OF FLUIDS INCLUDING: AN ELONGATE BODY HAVING A LONGITUDINAL FLOW PASSAGE; AN ACTUATING SLEEVE DISPOSED IN THE FLOW PASSAGE OF THE BODY FOR LIMITED LONGITUDINAL MOVEMENT THEREIN; A BALL VALVE ROTATABLY MOUNTED IN THE BODY AND HAVING A FLOW PASSAGE THERETHROUGH; MEANS PIVOTALLY CONNECTING SAID BALL VALVE WITH SAID BODY ECCENTRICALLY OF THE LONGITUDINAL AXIS THEREOF; MEANS OPERATIVELY CONNECTING THE BALL VALVE TO THE ACTUATING SLEEVE WHEREBY WHEN THE ACTUATING SLEEVE MOVES TO ONE EXTREME LONGITUDINAL POSITION IN THE BODY THE BALL VALVE IS ROTATED; SEAT MEANS SLIDABLE LONGITUDINALLY IN THE BODY AND OPERATIVELY ENGAGING THE BALL VALVE FOR CO-ACTING THEREWITH THE FLOW PASSSAGE THEREOF WHEN THE BALL VALVE IS ROTATED TO CONTROL FLOW OF FLUID THROUGH THE FLOW PASSAGE OF THE BODY; MEANS IN THE BODY BIASING THE ACTUATING SLEEVE TO ANOTHER EXTREME POSITION SPACED LONGITUDINALLY FROM SAID ONE POSITION, THE ACTUATING SLEEVE HAVING A RESTRICTED ORIFICE UPSTREAM OF THE BALL VALVE WHEREBY WHEN THE PRESSURE DIFFERENTIAL BETWEEN THE UPSTREAM SIDE OF THE ACTUATING SLEEVE AND THE FLOW PASSAGE EXCEEDS A PREDETERMINED VALUE, THE ACTUATING SLEEVE MOVES TO SAID ONE EXTREME POSITION.
Claim 2
Dependent Claim
189 words
A WELL TOOL FOR CONTROLLING FLOW OF FLUIDS INCLUDING: AN ELONGATE BODY HAVING A LONGITUDINAL FLOW PASSAGE; AN ACTUATING SLEEVE DISPOSED IN THE FLOW PASSAGE OF THE BODY FOR LIMITED LONGITUDINAL MOVEMENT THEREIN; A BALL VALVE ROTATABLY MOUNTED IN THE BODY AND HAVING A FLOW PASSAGE THERETHROUGH; MEANS PIVOTALLY CONNECTING SAID BALL VALVE WITH SAID BODY ECCENTRICALLY OF THE LONGITUDINAL AXIS THEREOF; MEANS OPERATIVELY CONNECTING THE BALL VALVE TO THE ACTUATING SLEEVE WHEREBY WHEN THE ACTUATING SLEEVE MOVES TO ONE EXTREME LONGITUDINAL POSITION IN THE BODY THE BALL VALVE IS ROTATED; SEAT MEANS SLIDABLE LONGITUDINALLY IN THE BODY AND OPERATIVELY ENGAGING THE BALL VALVE FOR CO-ACTING THEREWITH THE FLOW PASSSAGE THEREOF WHEN THE BALL VALVE IS ROTATED TO CONTROL FLOW OF FLUID THROUGH THE FLOW PASSAGE OF THE BODY; MEANS IN THE BODY BIASING THE ACTUATING SLEEVE TO ANOTHER EXTREME POSITION SPACED LONGITUDINALLY FROM SAID ONE POSITION, THE ACTUATING SLEEVE HAVING A RESTRICTED ORIFICE UPSTREAM OF THE BALL VALVE WHEREBY WHEN THE PRESSURE DIFFERENTIAL BETWEEN THE UPSTREAM SIDE OF THE ACTUATING SLEEVE AND THE FLOW PASSAGE EXCEEDS A PREDETERMINED VALUE, THE ACTUATING SLEEVE MOVES TO SAID ONE EXTREME POSITION.
References Cited (Backward Citations)
US3035808A
Cited
US2894715A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |