Claims
- 1. An improved ram seal for a ram type blowout preventer having reciprocating ram means operably carrying the improved ram seal apparatus, said improved ram seal apparatus comprising a resilient ram seal body for blocking undesired flow through the flow passage of the blowout preventer, wherein the improvement comprises:
- means with said ram seal body for releasably securing said ram seal body to the blowout preventer ram means from inside the flow passage of the blowout preventer.
- 2. The improved ram seal as set forth in claim 1, wherein:
- said means for releasable securing including attaching plates secured above and below the inner sealing surface of the ram seal body.
- 3. The improved ram seal as set forth in claim 2, wherein:
- each of said plates having attaching means for releasably attaching said ram seal body to catch means on a movable ram means.
- 4. The improved ram seal as set forth in claim 2, wherein:
- each of said plates having means for engagement by a retrieving tool.
- 5. The improved ram seal as set forth in claim 2, including:
- each of said plates having means for engagement by a retrieving tool to actuate said means for releasably securing to enable said improved ram seal apparatus to be retrieved from said ram member while inside the blowout preventer.
- 6. The improved ram seal as set forth in claim 1, wherein:
- said means for releasably securing having projections engageable with a catch means on the ram means for resisting release of said improved ram seal apparatus from the ram means.
- 7. The improved ram seal as set forth in claim 1, wherein:
- said means for releasable securing with the ram means actuated by movement of the ram means for securing the improved ram seal apparatus with the ram means.
- 8. The improved ram seal as set forth in claim 1, wherein:
- said means for releasable securing with the ram means actuated when the ram means is reciprocated to a position blocking the flow passage of the blowout preventer to secure the improved ram seal apparatus with the ram means.
- 9. An improved ram seal for a ram type blowout preventer having a reciprocating ram means carrying a resilient ram seal for blocking undesired flow through the flow passage of the blowout preventer, wherein the improvement comprises:
- a pair of plates secured to a resilient seal;
- each of said plates having means for releasably securing the improved ram seal apparatus with the ram means; and
- each of said plates having means for engagement from inside the flow passage by a retrieving tool for actuating said means for releasably securing to release the improved ram seal apparatus from the ram means.
- 10. The improved ram seal as set forth in claim 9, wherein:
- said pair of plates are secured on opposide sides of said resilient ram seal to enable said resilient seal to be compressed between said plates.
- 11. The ram seal as set forth in claim 9, wherein:
- said means for engagement having a projection on each of said plates for engagement by the retrieving tool for compressing the resilient ram seal to release said means for releasably securing.
- 12. A blowout preventer ram seal adapted for releasably securing with ram means of a ram type blowout preventer from inside a flow passage formed through the blowout preventer, the ram means mounted with the blowout preventer for reciprocating movement to and from a first position disposed in said flow passage for blocking flow of fluid through the flow passage and a second position disposed outwardly of the flow passage for enabling flow of fluid through the flow passage, comprising:
- a resilient ram seal body having a sealing surface; and
- means with said ram seal body for releasably securing said ram seal body to the ram means from inside the flow passage of the ram type blowout preventer.
- 13. The apparatus as set forth in claim 12, wherein:
- the releasable securing means having means for releasably attaching the ram seal apparatus with the ram means by movement of the ram means. pg,25
- 14. The apparatus as set forth in claim 12, wherein:
- the releasable securing means having means for releasably attaching the ram seal apparatus with the ram means reciprocally moved to the first operating position within a ram-type blowout preventer from the second position.
- 15. The ram seal as set forth in claim 12, wherein:
- said releasable securing means includes attaching plates secured above and below the inner sealing surface of the ram seal body.
- 16. The ram seal as set forth in claim 15, wherein:
- each plate having attaching means for releasably attaching said ram seal body to catch means on a movable ram means.
- 17. The ram seal as set forth in claim 15, wherein:
- said ram seal body having retrieving means on each of said plates for engagement by a retrieving tool.
- 18. The ram seal as set forth in claim 15, including:
- retrieving projections on each of said plates for engagement by a retrieving tool to compress said seal body and the attaching plates to a height less than the distance between upper and lower surfaces of a ram recess mean to thereby enable said seal to be retrieved from inside a blowout preventer.
- 19. The ram seal as set forth in claim 16, wherein:
- said attaching means having projections engageable with the catch means on the ram means for resisting release of said seal means from the ram means.
- 20. A blowout preventer ram seal for removal from and insertion into a recess in the movable flow blocking ram of a ram blowout preventer from inside the blowout preventer, comprising:
- a resilient ram seal body having an inner sealing surface;
- releasable attachment means with said ram seal body for releasably attaching said body to the ram while the ram is inside the blowout preventer;
- said ram also has catch means engageable by said releasable attachment means when said seal is positioned in said ram recess;
- said attachment means includes attaching plates secured above and below said ram seal body;
- each of said plates and said catch means having co-acting projections engageable with each other for resisting release of said seal from said ram;
- said catch means includes upper and lower catch projections;
- said co-acting projections have tapered co-acting guide surfaces for squeezing said seal body between said plates as said ram seal is forced into said recess to a height which is less than the distance between said upper and lower catch projections; and
- said co-acting projections have co-acting retaining surfaces which engage each other to prevent removal of said ram seal from said ram until said surfaces are disengaged by a compression of at least a portion of said seal body to reduce the height thereof to less than the distance between said upper and lower catch projections.
- 21. A blowout preventer ram seal apparatus having means enabling seal removal from and insertion into a controlled reciprocating flow blocking ram of a ram type blowout preventer from inside the flow passage which extends through the ram type blowout preventer, comprising:
- a blowout preventer ram means mounted for reciprocating movement inside a ram-type blowout preventer to and from a first operating position disposed in said flow passage for blocking flow of fluid through the blowout preventer and a second operating position outwardly of said flow passage for enabling flow of fluid through the blowout preventer;
- a resilient ram seal body having an inner sealing surface; and
- means with said ram seal body for releasably attaching said ram seal body to said movable ram from inside the flow passage while said ram means is reciprocally moved to the first operating position within the ram-type blowout preventer from the second operating position.
- 22. The ram seal set forth in claim 21, wherein:
- said releasable attaching means includes attaching plates secured above and below the inner sealing surface of the ram seal body and each plate having attaching means for releasably attaching said ram seal body to said movable ram.
- 23. The apparatus set forth in claim 22, wherein:
- said ram seal body having retrieving means on each of said plates for engagement by a retrieving tool.
- 24. The apparatus set forth in claim 22, wherein:
- said ram means having catch means for releasably securing with said attaching means.
- 25. Improved apparatus for blocking undesired flow through the flow passage of a ram blowout preventer, wherein the improvement comprises:
- a blowout preventer ram body reciprocally mountable in a ram type blowout preventer for movement to and from a first operating position disposed in the flow passage for blocking flow of fluid through the flow passage and a second position disposed outwardly of the flow passage for enabling flow of fluid through the flow passage;
- a resilient ram seal having a fluid sealing surface; and
- means with said resilient ram seal for releasably securing said resilient ram seal with the blowout preventer ram body from inside the flow passage of the ram type blowout preventer.
- 26. The improved apparatus of claim 25, wherein:
- said means for releasable securing is actuated by movement of said ram body.
- 27. The improved apparatus of claim 25, wherein:
- said means for releasably securing the ram seal with the ram body is actuated by movement of the ram body toward the first position for blocking the flow passage of the blowout preventer.
- 28. The improved apparatus as set forth in claim 25, wherein:
- said ram body having a recess for receiving said resilient ram seal from inside the flow passage wherein said resilient ram seal is secured with said ram body.
- 29. The improved apparatus as set forth in claim 25, wherein:
- said ram seal having a plate member secured with said resilient seal.
- 30. The improved apparatus as set forth in claim 29, wherein:
- said plate member mounts said means for releasably securing said ram seal with the ram body from inside the flow passage when the ram body is mounted in the blowout preventer.
- 31. The improved apparatus as set forth in claim 25, wherein:
- said ram body having catch means for coacting with said means for releasably securing the ram seal with the ram body from inside the flow passage for effecting securing when said ram seal is received in said ram body.
- 32. The improved apparatus as set forth in claim 31, wherein:
- said ram seal having means for engagement by a retrieving tool disposed in the flow passage for releasing said ram seal from said ram body.
- 33. A blowout preventer ram seal apparatus for removal from and insertion into a controlled reciprocating flow blocking ram of a ram type blowout preventer from inside the flow passage which extends through the ram type blowout preventer, comprising:
- a blowout preventer ram means mounted for reciprocating movement inside a ram-type blowout preventer to and from a first operating position disposed in said flow passage for blocking flow of fluid through the blowout preventer and a second operating position outwardly of said flow passage for enabling flow of fluid through the blowout preventer;
- a resilient ram seal body having an inner sealing surface;
- means with said ram seal body for releasably attaching said ram seal body to said movable ram from inside the flow passage while said ram means is reciprocally moved to the first operating position within the ram-type blowout preventer from the second operating position;
- said releasable attaching means includes attaching plates secured above and below the inner sealing surface of the ram seal body and each plate having attaching means for releasably attaching said ram seal body to said movable ram;
- said ram seal body having retrieving means on each of said plates for engagement by a retrieving tool;
- said ram means having catch means for releasably securing with said attaching means; and
- said attaching means and said catch means having co-acting projections engageable with each other for resisting release of said seal from said ram.
- 34. The structure set forth in claim 33, including:
- retrieving projections on each of said plates for engagement by a retrieving tool to compress said seal body to a height less than the distance between said upper and lower catch projections to thereby enable said seal to be retrieved from the recess in the ram.
- 35. An improved ram means for a ram type blowout preventer for releasably receiving a resilient retrievable sealing means from inside the flow passage of the blowout preventer, wherein the improvement comprises:
- a blowout preventer ram body mountable in a ram type blowout preventer; and
- said ram body having means for releasably receiving the resilient sealing means for securing with the ram body through the flow passage of the blowout preventer.
- 36. The improved ram means as set forth in claim 35, wherein:
- said ram body having a recess for operably receiving the retrievable resilient sealing means.
- 37. The improved ram means as set forth in claim 35, wherein:
- the ram means having a guide means for positioning the resilient sealing means relative to the ram means when releasably securing the resilient sealing means with the ram means.
- 38. The improved ram means as set forth in claim 35, wherein:
- the ram body having a recess for operably receiving the retrievable resilient sealing means by movement of the ram inside the flow passage.
- 39. The improved ram means of claim 38, wherein:
- said recess forming upper and lower surface having catch means on the upper and lower surfaces of the recess to which means for releasably securing carried on the resilient sealing means engage for securing.
- 40. The ram as set forth in claim 39, wherein:
- the catch means having projections on the upper and lower surfaces releasably securable with attachment means on a ram seal when the ram is in the first position.
- 41. An improved ram means for a ram type blowout preventer, said ram means reciprocally movable to block a flow passage through the blowout preventer as desired, the improvement comprising:
- a ram body having means for receiving a resilient ram seal from inside the flow passage when said ram body is operably mounted in the ram type blowout preventer; and
- means with said ram body for aligning the resilient ram seal with said ram body for installing or retrieving the resilient ram seal apparatus from inside the flow passage while the ram body is operably mounted in the ram type blowout preventer.
- 42. The improved ram means as set forth in claim 41, wherein:
- said means for aligning comprising a slot formed in said ram body for receiving a lug from a tool apparatus for aligning the ram seal tool apparatus with said ram body for installing or retrieving the resilient ram seal with the ram body from inside the flow passage.
- 43. The improved apparatus of claim 41, wherein:
- said means for aligning means comprising a surface on said ram body for engagement by the tool apparatus for aligning the tool apparatus in the blowout preventer flow passage to install or retrieve the resilient ram seal.
- 44. A ram means adapted for use in a ram type blowout preventer forming a flow passage, said ram means having attachably thereto a resilient sealing means thereto from inside the flow passage while said ram means is operably disposed in the ram type blowout preventer, comprising:
- a blowout preventer ram body mountable in a ram type blowout preventer for reciprocating operating movement substantially transverse to the blowout preventer flow passage to and from a first position disposed in said flow passage for blocking flow of fluid through the blowout preventer and a second position outwardly of said flow passage for enabling flow of fluid through the flow passage; and
- means with said ram body for releasably receiving and having secured with said ram body a resilient sealing means disposed within the flow passage while said ram body is operably disposed in the ram type blowout preventer.
- 45. The ram means as set forth in claim 44, wherein:
- said releasable securing means having means for securing the ram means with the resilient sealing means by operating movement of said ram body.
- 46. The ram means as set forth in claim 44, wherein:
- said releasable securing means having means for securing the ram means with the resilient sealing means by movement of the ram means to a position blocking the flow passage of the blowout preventer.
- 47. The ram means as set forth in claim 44, wherein:
- said ram body means having a recess for receiving the resilient sealing means through the flow passage.
- 48. The ram means as set forth in claim 47, wherein:
- said recess is substantially a semi-annular groove for receiving the resilient sealing means.
- 49. The ram means as set forth in claim 47, wherein:
- said recess having a guide groove to center and properly position the resilient sealing means.
- 50. The ram means as set forth in claim 44, wherein:
- said releasable securing means having catch means for releasably securing with the resilient sealing means.
- 51. The ram means as set forth in claim 50, wherein:
- said catch means having projections engageable with co-acting projections formed on the resilient sealing means for releasably securing said sealing means in said ram groove.
- 52. A blowout preventer ram seal for removal from and insertion into a movable flow blocking ram means of a ram blowout preventer from inside the blowout preventer, comprising:
- a resilient ram seal body having an inner sealing surface;
- attaching plates secured to the ram seal body above and below said ram seal body for releasably attaching said body to the ram means disposed inside the blowout preventer;
- each of said plates having projections engageable with projections formed on the ram means for resisting release of said seal body from the ram means; and
- said plate projections having tapered guide surfaces for enabling the projections formed on said plates to move relative to the projections on the ram means into engagement for resisting release of said seal body from the ram means wherein said ram seal apparatus is secured to the ram means.
- 53. A ram means for use in a ram type blowout preventer, said ram means having a recess for receiving a ram seal apparatus having a resilient ram seal body and releasable securing means for releasably attaching said resilient ram seal body to said ram means while said ram means is operably disposed within the blowout preventer, comprising:
- a ram means forming a recess and having catch means engageable by releasable attachment means on a ram seal apparatus when a said ram seal apparatus is positioned in said ram recess;
- said catch means having upper and lower projections engageably co-acting with the ram seal apparatus for resisting release of the ram seal apparatus from said ram means; and
- said catch means projections have retaining surfaces which engage on the ram seal apparatus to prevent removal of the ram seal apparatus from said ram recess until surfaces on the ram seal apparatus is disengaged from said upper and lower catch projections.
CROSS-REFERENCE TO RELATED APPLICATIONS
This is a continuation of application Ser. No. 327,627 filed Jan. 29, 1973 now abandoned, which was a division of Ser. No. 127,881, filed Mar. 25, 1971, now U.S. Pat. No. 3,737,974.
US Referenced Citations (8)
Divisions (1)
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Number |
Date |
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Parent |
127881 |
Mar 1971 |
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Continuations (1)
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Number |
Date |
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Parent |
327627 |
Jan 1973 |
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