Patent US4444267A successfully refreshed from Google Patents.
US4444267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball valve housing
Assignee: Halliburton Co
•
Filing: 1981-12-30
•
Granted: 1984-04-24
•
Expires: 2001-12-30
Abstract
Abstract An improved valve member retention assembly comprising a cage assembly containing the lower valve seat and spherical valve member therein.
Inventors
- 👤 Harold K. Beck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:25
CPC Classifications
E; E21; E21B; E21B34/00; E21B34/06; E21B34/10; E21B47/00; E21B47/10; E21B47/117; E21B2200/00; E21B2200/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
201 words
A well testing apparatus having an annular adapter, annular outer case, annular upper mandrel including an annular recess in the interior in one end thereof, annular power mandrel, an actuation arm having a lug thereon, annular lower mandrel, and a spherical valve member having recesses therein, a bore therethrough, and being restrained from axial movement within said valve testing apparatus between an upper valve seat received and retained in the annular recess in the end of the annular upper mandrel and lower valve seat by a valve cage, said spherical valve member movable within said well testing apparatus by the lug means of said actuation arm engaging the recesses in said spherical valve member, said valve cage comprising: an annular elongated cylindrical member having a lower portion having a bore therethrough, an intermediate portion having said lower valve seat retained therein abutting an annular shoulder in the intermediate portion and an axial recess in the exterior surface thereof slidably retaining said actuation arm therein, a valve portion which slidably receives a portion of said actuation arm therein, and an upper portion releasably secured to said annular upper mandrel to retain said spherical valve member from axial movement within said testing apparatus.
Claim 2
Dependent Claim
201 words
A well testing apparatus having an annular adapter, annular outer case, annular upper mandrel including an annular recess in the interior in one end thereof, annular power mandrel, an actuation arm having a lug thereon, annular lower mandrel, and a spherical valve member having recesses therein, a bore therethrough, and being restrained from axial movement within said valve testing apparatus between an upper valve seat received and retained in the annular recess in the end of the annular upper mandrel and lower valve seat by a valve cage, said spherical valve member movable within said well testing apparatus by the lug means of said actuation arm engaging the recesses in said spherical valve member, said valve cage comprising: an annular elongated cylindrical member having a lower portion having a bore therethrough, an intermediate portion having said lower valve seat retained therein abutting an annular shoulder in the intermediate portion and an axial recess in the exterior surface thereof slidably retaining said actuation arm therein, a valve portion which slidably receives a portion of said actuation arm therein, and an upper portion releasably secured to said annular upper mandrel to retain said spherical valve member from axial movement within said testing apparatus.
Claim 3
Dependent Claim
41 words
The well testing apparatus of claim 1 wherein said cage means further comprises an annular chamfered surface at one end of the bore in the intermediate portion adjacent the end of said lower valve seat which engages said spherical valve member.
Claim 4
Dependent Claim
204 words
A well testing apparatus having an annular adapter, annular outer case, annular upper mandrel, having a recess in the interior in one end thereof, annular power mandrel, actuation arm having a lug thereon, annular lower mandrel, and a spherical valve member having recesses therein, a bore therethrough, and being restrained from axial movement within said valve testing apparatus between an upper valve seat and lower valve seat by a valve cage, said spherical valve member movable within said well testing apparatus by the lug of said actuation arm engaging the recesses in said spherical valve member, said valve cage comprising: an annular cylindrical member having axial recess in the exterior surface thereof slidably retaining said actuation arm therein, having an intermediate portion having a bore therein which receives said lower valve seat therein, an annular shoulder which abuts one end of said lower valve seat, an annular chamfered surface at one end of the bore therein adjacent the end of said lower valve seat which engages said spherical valve member, having a valve portion receiving said spherical valve member therein and an upper portion releasably secured to said annular upper mandrel to retain said spherical valve member from axial movement within said testing tool.
Claim 5
Dependent Claim
204 words
A well testing apparatus having an annular adapter, annular outer case, annular upper mandrel, having a recess in the interior in one end thereof, annular power mandrel, actuation arm having a lug thereon, annular lower mandrel, and a spherical valve member having recesses therein, a bore therethrough, and being restrained from axial movement within said valve testing apparatus between an upper valve seat and lower valve seat by a valve cage, said spherical valve member movable within said well testing apparatus by the lug of said actuation arm engaging the recesses in said spherical valve member, said valve cage comprising: an annular cylindrical member having axial recess in the exterior surface thereof slidably retaining said actuation arm therein, having an intermediate portion having a bore therein which receives said lower valve seat therein, an annular shoulder which abuts one end of said lower valve seat, an annular chamfered surface at one end of the bore therein adjacent the end of said lower valve seat which engages said spherical valve member, having a valve portion receiving said spherical valve member therein and an upper portion releasably secured to said annular upper mandrel to retain said spherical valve member from axial movement within said testing tool.
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) | 1987-04-24 | 1987-10-24 | 1988-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-24 | 1991-10-24 | 1992-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-24 | 1995-10-24 | 1996-04-24 | $7700.00 | Window Closed / Lapsed |