USRE37483E1 - Cylinder liner securing apparatus - Google Patents
Cylinder liner securing apparatus Download PDFInfo
- Publication number
- USRE37483E1 USRE37483E1 US09/190,799 US19079998A USRE37483E US RE37483 E1 USRE37483 E1 US RE37483E1 US 19079998 A US19079998 A US 19079998A US RE37483 E USRE37483 E US RE37483E
- Authority
- US
- United States
- Prior art keywords
- cylinder
- piston
- cylinder liner
- arrangements
- pumping module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
- F04B53/166—Cylinder liners
- F04B53/168—Mounting of cylinder liners in cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/60—Assembly methods
- F04C2230/603—Centering; Aligning
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
- Y10S411/916—Bolt having tension feature
Definitions
- This invention is in the field of reciprocating pumps and particularly relates to a means for aligning and securing the cylinder liners of such pumps to their respective pumping modules.
- the means is also adapted to energise energize the seals of such liners.
- Reciprocating pumps are well-known and a particular example discussed in the present specification is oil-field mud pumps.
- the invention is not, however, limited to mud pumps but finds application in a variety of reciprocating or positive displacement pumps.
- a means for securing cylinder liners to pumping modules in reciprocating pumps wherein said means includes a plurality of arrangements having a piston slidable within a hydraulic cylinder, said pistons having a rod adapted to receive a nut, said rods extending outwith their respective cylinders and being passed through respective apertures in a member adapted to grip said cylinder liner, wherein retraction of said piston and nut causes said member to forcibly compel said cylinder liner towards said pumping module.
- said arrangements are fastened to said pumping module.
- said arrangements also include a spring or springs for location between the top of said cylinder and the piston. Hydraulic fluid can be inserted between the piston and the cylinder base by an external pressure source.
- said means further includes non-rotational apparatus for preventing rotation of said pistons within said cylinders, wherein said non-rotational apparatus preferably includes one or more dowel rods which extend between said pistons and said cylinder base.
- said member comprises a clamping ring having corresponding apertures for receiving said piston rods.
- FIG. 1 is a sectional view of a cylinder liner and pump module incorporating the invention.
- FIG. 2 is an end view of the securing means illustrated in FIG. 1 .
- a reciprocating pump generally described at 1 comprises a module 2 and cylinder liner 3 . It is desirable that the cylinder liner 3 is securely held up against the face 4 of the module 2 . Between the cylinder liner 3 and the module 2 there is-provided a seal 5 which, in its unenergized (i.e., uncompressed) state, usually requires to must be compressed by the cylinder liner 3 , therebyto close a gap is created between the adjacent faces of the module 2 and cylinder liner 3 .
- the securing means 6 comprises a plurality of assemblies or arrangements 20 , wherein each assembly includes a cylinder 7 adapted to house a slidable piston 8 , a plug 9 and clamping springs 10 .
- the piston 8 is further provided with a rod 11 which extends outwith the cylinder 7 .
- the rod 11 is provided with a threaded portion 21 adapted to receive the nut 12 . Furthermore, the rod 11 passes through the shoulder or clamping ring 13 which circumnavigates the cylinder liner 3 and is pressed up against the lug 14 on the cylinder liner 3 . In a preferable embodiment of the invention, there is provided one or more dowels 15 which engage both piston end plug in each arrangement for the purpose of preventing rotation of the piston.
- the securing means 6 includes four or more arrangements 20 having the aforesaid components 7 , 8 , 9 , 10 , 11 , 12 . These arrangements 20 are permanently bolted by the bolts 22 to the module 2 , although the nuts 12 are detachable, thereby allowing removal of the cylinder liner 3 .
- the invention thus provides components which are considerably lighter than comparative components used heretobefore. In view of it negating the requirement of heavy tooling or handling, the components are less likely to be damaged during the removal or securing of cylinder liners and thus the invention permits greater repeatability and reliability. Furthermore, the need for intensive manual or skilled labour by operators is also mitigated. Similarly, there is a reduced danger of injury to operators or by-standers during such operational and maintenance functions.
- a further advantage of the invention is that the clamping pressure may be predetermined by the springs and it is possible to achieve uniform pressure around the periphery of the liner, which enables perfect liner alignment.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
A device for securing a cylinder liner (3) to a respective pumping module (2) in a reciprocating pump has a set of arrangements each with a hydraulically activated piston (8), a rod (11) of which is adapted to receive a nut (12), the retraction of which forcibly compels in attraction the cylinder liner (3) and the pumping (2).
Description
This invention is in the field of reciprocating pumps and particularly relates to a means for aligning and securing the cylinder liners of such pumps to their respective pumping modules. The means is also adapted to energise energize the seals of such liners.
Reciprocating pumps are well-known and a particular example discussed in the present specification is oil-field mud pumps. The invention is not, however, limited to mud pumps but finds application in a variety of reciprocating or positive displacement pumps.
In the past, there have been several different types of ways to attach cylinder liners to their respective pumping modules and these may vary according to make of pump in which they are used. One embodiment presently known employs a tapered concentric clamp, whale while another uses a concentric screw clamping arrangement.
It is important that the means for aligning and securing the cylinder liners may be implemented without undue effort and down-time. Cylinder liners are required to be changed frequently and this causes considerable inconvenience if the means and method for releasing the old cylinder liners and fitting the replacement cylinder liners are slow or difficult to operate. It has been found that existing systems or means for securing cylinder liners to respective pumping modules have been difficult to operate for a plurality of reasons, including the involvement of heavy components, the handling of which may be dangerous for operators. These systems also require considerable strength, skill and reliability of operators, together with the use of heavy tools in confined spaces. Yet further, the securing force is dependent on the extent of wear and the general condition of a plurality of the securing components.
According to the invention, there is provided a means for securing cylinder liners to pumping modules in reciprocating pumps, wherein said means includes a plurality of arrangements having a piston slidable within a hydraulic cylinder, said pistons having a rod adapted to receive a nut, said rods extending outwith their respective cylinders and being passed through respective apertures in a member adapted to grip said cylinder liner, wherein retraction of said piston and nut causes said member to forcibly compel said cylinder liner towards said pumping module.
Preferably, said arrangements are fastened to said pumping module. Preferably, said arrangements also include a spring or springs for location between the top of said cylinder and the piston. Hydraulic fluid can be inserted between the piston and the cylinder base by an external pressure source.
Preferably, there are four or more said arrangements spaced at intervals about and externally of the circumference of the cylinder liner.
Preferably, said means further includes non-rotational apparatus for preventing rotation of said pistons within said cylinders, wherein said non-rotational apparatus preferably includes one or more dowel rods which extend between said pistons and said cylinder base.
Preferably said member comprises a clamping ring having corresponding apertures for receiving said piston rods.
An example embodiment of the invention will now be described by way example only, with reference to the accompanying Figures, in which:
FIG. 1 is a sectional view of a cylinder liner and pump module incorporating the invention; and
FIG. 2 is an end view of the securing means illustrated in FIG. 1.
A reciprocating pump generally described at 1 comprises a module 2 and cylinder liner 3. It is desirable that the cylinder liner 3 is securely held up against the face 4 of the module 2. Between the cylinder liner 3 and the module 2 there is-provided a seal 5 which, in its unenergized (i.e., uncompressed) state, usually requires to must be compressed by the cylinder liner 3, therebyto close a gap is created between the adjacent faces of the module 2 and cylinder liner 3.
In order to prevent the existence of this gap, it is necessary to forcibly push the cylinder liner 3 against the module 2 and this is achieved by securing means, generally described at 6. The effect of compressing the cylinder liner 3 against the face 4 of the module 2 is to energise energize or compress the seal 5. This compression is of course desirable to increase the effectiveness and efficiency of the seal 5. The securing means 6 comprises a plurality of assemblies or arrangements 20, wherein each assembly includes a cylinder 7 adapted to house a slidable piston 8, a plug 9 and clamping springs 10. The piston 8 is further provided with a rod 11 which extends outwith the cylinder 7. The rod 11 is provided with a threaded portion 21 adapted to receive the nut 12. Furthermore, the rod 11 passes through the shoulder or clamping ring 13 which circumnavigates the cylinder liner 3 and is pressed up against the lug 14 on the cylinder liner 3. In a preferable embodiment of the invention, there is provided one or more dowels 15 which engage both piston end plug in each arrangement for the purpose of preventing rotation of the piston.
In the embodiment shown, the securing means 6 includes four or more arrangements 20 having the aforesaid components 7, 8, 9, 10, 11, 12. These arrangements 20 are permanently bolted by the bolts 22 to the module 2, although the nuts 12 are detachable, thereby allowing removal of the cylinder liner 3.
In use, when a cylinder liner 3 is positioned against or nearly against the module 2, the shoulder or clamping ring 13 is then fitted over each of the piston rods 11. The nuts 12 are then threadably applied to the rods 11. The method of forcibly securing the cylinder liner 3 to the pumping module 2 is then implemented. This involves inserting hydraulic fluid 25 23between the piston head 8 and the cylinder base, such that the piston is extended to a greater extent outwith the cylinder 7 and the nut 12 is given freedom to be tightened by further rotation along the piston rod 11 towards the clamping ring 13. Preferably, this process is performed with all of the securing arrangements 20 simultaneously. It should be noted that the apparatus and method described herein allows the nuts 12 to be tightened by hand. It will be appreciated that this is a considerable advantage over the requirement of using heavy tools which has been the practice in the past.
The invention thus provides components which are considerably lighter than comparative components used heretobefore. In view of it negating the requirement of heavy tooling or handling, the components are less likely to be damaged during the removal or securing of cylinder liners and thus the invention permits greater repeatability and reliability. Furthermore, the need for intensive manual or skilled labour by operators is also mitigated. Similarly, there is a reduced danger of injury to operators or by-standers during such operational and maintenance functions.
A further advantage of the invention is that the clamping pressure may be predetermined by the springs and it is possible to achieve uniform pressure around the periphery of the liner, which enables perfect liner alignment.
Other advantages of the invention will become apparent to operators and associated personnel involved in the implementation and operation of the invention, including the fact that reduced time is required to affect the replacement of a cylinder liner.
Further modifications and improvements may be incorporated without departing from the spirit or scope of the invention.
Claims (7)
1. An apparatus for securing a cylinder liner to a pumping module in a reciprocating pump, said apparatus comprising a plurality of one or more arrangements each fastened to said pumping module and each having a piston slidable within a hydraulic cylinder, said piston having being provided with a rod having a threaded portion adapted to receive a nut, said rod extending away from said pumping module beyond its respective cylinder and said threaded portion being passed through a respective aperture in a member adapted to grip said cylinder liner, said nut being received on said threaded portion, wherein retraction of said piston and nut towards said pumping module causes said member to forcibly compel said cylinder liner towards said pumping module.
2. An apparatus as claimed in claim 1wherein the saidfurther comprising a plurality of arrangements areeach fastened to said pumping module.
3. An apparatus as claimed in claim 1 wherein each said plurality of arrangements each include arrangement includes at least one spring located between the top of said cylinder and the piston.
4. An apparatus as claimed in claim 1 wherein the piston and the cylinder base define a space for accommodating hydraulic fluid.
5. An apparatus as claimed in claim 1 wherein said plurality of arrangement one or more arrangements comprise at least four arrangements spaced at intervals about and externally of the circumference of the cylinder liner.
6. An apparatus as claimed in claim 1 further including non-rotational means for preventing rotation of said piston within said cylinder, wherein said non-rotational means includes at least one dowel rod which extends between said piston and said cylinder base.
7. An apparatus as claimed in claim 1 wherein said member comprises a clamping ring having said aperture for receiving said rod.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/190,799 USRE37483E1 (en) | 1993-12-11 | 1998-11-12 | Cylinder liner securing apparatus |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9325388 | 1993-12-11 | ||
GB939325388A GB9325388D0 (en) | 1993-12-11 | 1993-12-11 | Apparatus for reciprocating pumps |
US08/353,512 US5572920A (en) | 1993-12-11 | 1994-12-09 | Cylinder liner securing apparatus |
US09/190,799 USRE37483E1 (en) | 1993-12-11 | 1998-11-12 | Cylinder liner securing apparatus |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/353,512 Reissue US5572920A (en) | 1993-12-11 | 1994-12-09 | Cylinder liner securing apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE37483E1 true USRE37483E1 (en) | 2001-12-25 |
Family
ID=10746468
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/353,512 Ceased US5572920A (en) | 1993-12-11 | 1994-12-09 | Cylinder liner securing apparatus |
US09/190,799 Expired - Lifetime USRE37483E1 (en) | 1993-12-11 | 1998-11-12 | Cylinder liner securing apparatus |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/353,512 Ceased US5572920A (en) | 1993-12-11 | 1994-12-09 | Cylinder liner securing apparatus |
Country Status (2)
Country | Link |
---|---|
US (2) | US5572920A (en) |
GB (2) | GB9325388D0 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004106743A1 (en) * | 2003-05-29 | 2004-12-09 | Spicket Valves And Pumps Limited | Liner retention system |
GB2409709A (en) * | 2003-12-30 | 2005-07-06 | Spicket Valves & Pumps Ltd | Cylinder liner retention system |
US20070209473A1 (en) * | 2003-10-08 | 2007-09-13 | Spicket Valves And Pumps Limited | Piston Rod Assembly |
US20100275774A1 (en) * | 2009-04-30 | 2010-11-04 | Tsc Offshore Group Limited | Biaxial alignment assembly for force delivery device |
US20100275773A1 (en) * | 2009-04-30 | 2010-11-04 | Tsc Offshore Group Limited | Pump liner retention device |
US20110236238A1 (en) * | 2008-12-08 | 2011-09-29 | Bentec Gmbh Drilling & Oilfield Systems | Clamping device for cylinder sleeves and use thereof, and mud pump having a clamping |
DE102011056712A1 (en) * | 2011-12-20 | 2013-06-20 | Bentec Gmbh Drilling & Oilfield Systems | Clamping device for valve cover at scavenge pump for deep drilling operation, has stud bolt provided for attachment of blank holder at adjusting ring and comprising measuring unit for measuring or controlling extension tension of stud bolt |
US9995300B2 (en) | 2015-12-02 | 2018-06-12 | Forum Us, Inc. | Cartridge retention system |
US10041594B2 (en) | 2014-12-15 | 2018-08-07 | Forum Us, Inc. | Energized screw gland |
US10252405B2 (en) | 2016-05-19 | 2019-04-09 | Forum Us, Inc. | Bolt tensioning system |
US11454321B2 (en) | 2019-05-01 | 2022-09-27 | Gd Energy Products, Llc | Hydraulic fluid pump and stuffing box assembly for same |
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GB9522117D0 (en) * | 1995-10-28 | 1996-01-03 | Kennedy T M & Company Ltd | Reciprocating pump modification |
US6000916A (en) * | 1998-02-06 | 1999-12-14 | Optimize Technologies, Inc. | Pump head quick connect assembly |
US6209445B1 (en) * | 1998-09-03 | 2001-04-03 | Southwest Oilfield Products, Inc. | Liner retainer assembly |
DE10023849B4 (en) * | 2000-05-16 | 2005-11-17 | Brueninghaus Hydromatik Gmbh | Piston engine with displaceably mounted in guide bushes of a cylinder drum piston and guide bushing for such a piston engine |
GB0030997D0 (en) * | 2000-12-20 | 2001-01-31 | Quip Ltd P | Apparatus for connecting flanged pipes |
US6588318B2 (en) * | 2001-03-09 | 2003-07-08 | National-Oilwell, L.P. | Hydraulic retention system for reciprocating pump cylinder liner |
US7003877B2 (en) * | 2002-04-12 | 2006-02-28 | Spx Corporation | Cylinder liner remover |
US7287460B2 (en) * | 2003-10-23 | 2007-10-30 | National-Oilwell Varco, L.P. | Hydraulic retention system for reciprocating pump cylinder liner |
US7234388B2 (en) * | 2004-04-13 | 2007-06-26 | Helmerich & Payne, Inc. | Liner retention system |
EP2106547B1 (en) * | 2007-01-09 | 2019-10-30 | Optimize Technologies, Inc. | High pressure connect fitting |
US9670666B1 (en) | 2008-11-20 | 2017-06-06 | Emseal Joint Sytstems Ltd. | Fire and water resistant expansion joint system |
US8365495B1 (en) | 2008-11-20 | 2013-02-05 | Emseal Joint Systems Ltd. | Fire and water resistant expansion joint system |
US10316661B2 (en) | 2008-11-20 | 2019-06-11 | Emseal Joint Systems, Ltd. | Water and/or fire resistant tunnel expansion joint systems |
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US9200437B1 (en) | 2008-12-11 | 2015-12-01 | Emseal Joint Systems Ltd. | Precompressed foam expansion joint system transition |
US9739050B1 (en) | 2011-10-14 | 2017-08-22 | Emseal Joint Systems Ltd. | Flexible expansion joint seal system |
US9631362B2 (en) | 2008-11-20 | 2017-04-25 | Emseal Joint Systems Ltd. | Precompressed water and/or fire resistant tunnel expansion joint systems, and transitions |
US11180995B2 (en) | 2008-11-20 | 2021-11-23 | Emseal Joint Systems, Ltd. | Water and/or fire resistant tunnel expansion joint systems |
US10851542B2 (en) | 2008-11-20 | 2020-12-01 | Emseal Joint Systems Ltd. | Fire and water resistant, integrated wall and roof expansion joint seal system |
US10066387B2 (en) | 2008-12-11 | 2018-09-04 | Emseal Joint Systems, Ltd. | Precompressed foam expansion joint system transition |
US8813450B1 (en) | 2009-03-24 | 2014-08-26 | Emseal Joint Systems Ltd. | Fire and water resistant expansion and seismic joint system |
US8341908B1 (en) | 2009-03-24 | 2013-01-01 | Emseal Joint Systems Ltd. | Fire and water resistant expansion and seismic joint system |
US8317444B1 (en) * | 2009-03-24 | 2012-11-27 | Emseal Joint Systems LTD | Movement-compensating plate anchor |
US9068297B2 (en) | 2012-11-16 | 2015-06-30 | Emseal Joint Systems Ltd. | Expansion joint system |
US10400511B2 (en) | 2014-01-22 | 2019-09-03 | Cameron Rig Solutions Llc | Hydraulically deactivated clamp |
US20170107983A1 (en) * | 2015-10-14 | 2017-04-20 | Forum Us, Inc | Valve cover and liner retainer for a fluid end of a pump |
US11421680B1 (en) * | 2020-06-30 | 2022-08-23 | Vulcan Industrial Holdings, LLC | Packing bore wear sleeve retainer system |
US11421679B1 (en) | 2020-06-30 | 2022-08-23 | Vulcan Industrial Holdings, LLC | Packing assembly with threaded sleeve for interaction with an installation tool |
US11384756B1 (en) | 2020-08-19 | 2022-07-12 | Vulcan Industrial Holdings, LLC | Composite valve seat system and method |
US11391374B1 (en) | 2021-01-14 | 2022-07-19 | Vulcan Industrial Holdings, LLC | Dual ring stuffing box |
US11434900B1 (en) * | 2022-04-25 | 2022-09-06 | Vulcan Industrial Holdings, LLC | Spring controlling valve |
US11920684B1 (en) | 2022-05-17 | 2024-03-05 | Vulcan Industrial Holdings, LLC | Mechanically or hybrid mounted valve seat |
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US3435777A (en) * | 1966-05-20 | 1969-04-01 | Wirth Co Kg Masch Bohr | Pump,particularly hydraulic pump for drilling plant |
US3438334A (en) * | 1966-05-20 | 1969-04-15 | Wirth Co Kg Masch Bohr | Pumps,in particular scavenging pumps for use in drilling operations |
US3635616A (en) * | 1969-09-18 | 1972-01-18 | Western Electric Co | Pressure vessel |
US3842718A (en) * | 1973-04-12 | 1974-10-22 | W Malchow | Bolted connection including a stud |
DE2356604A1 (en) | 1973-11-13 | 1975-05-15 | Wagner Maschf Paul Heinz | Hydraulic bolt tensioning mechanism - pulls on nut to allow insertion of distance pieces underneath it |
DE2411927A1 (en) | 1973-11-13 | 1975-05-22 | Schwermasch Liebknecht Veb K | DEVICE FOR TENSIONING, IN PARTICULAR PRESSURE SLEEVES |
DE2855454A1 (en) | 1978-02-14 | 1979-08-16 | Stork Werkspoor Diesel Bv | Diesel engine head clamping bolt preloading tool - has hollow piston whose movement is limited by channel connected to low pressure chamber |
GB1584158A (en) | 1976-05-13 | 1981-02-04 | Sulzer Ag | Tensioning device for tensioning a rod |
DE3218000A1 (en) | 1982-05-13 | 1983-11-24 | Wirth Maschinen- und Bohrgeräte-Fabrik GmbH, 5140 Erkelenz | Clamping device for a pump cylinder liner |
US4566372A (en) * | 1982-08-12 | 1986-01-28 | A. Zeitlin & Associates | Pressure seal for ultra-high pressure apparatus |
-
1993
- 1993-12-11 GB GB939325388A patent/GB9325388D0/en active Pending
-
1994
- 1994-12-06 GB GB9424576A patent/GB2285489B/en not_active Expired - Lifetime
- 1994-12-09 US US08/353,512 patent/US5572920A/en not_active Ceased
-
1998
- 1998-11-12 US US09/190,799 patent/USRE37483E1/en not_active Expired - Lifetime
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US3435777A (en) * | 1966-05-20 | 1969-04-01 | Wirth Co Kg Masch Bohr | Pump,particularly hydraulic pump for drilling plant |
US3438334A (en) * | 1966-05-20 | 1969-04-15 | Wirth Co Kg Masch Bohr | Pumps,in particular scavenging pumps for use in drilling operations |
US3635616A (en) * | 1969-09-18 | 1972-01-18 | Western Electric Co | Pressure vessel |
US3842718A (en) * | 1973-04-12 | 1974-10-22 | W Malchow | Bolted connection including a stud |
DE2356604A1 (en) | 1973-11-13 | 1975-05-15 | Wagner Maschf Paul Heinz | Hydraulic bolt tensioning mechanism - pulls on nut to allow insertion of distance pieces underneath it |
DE2411927A1 (en) | 1973-11-13 | 1975-05-22 | Schwermasch Liebknecht Veb K | DEVICE FOR TENSIONING, IN PARTICULAR PRESSURE SLEEVES |
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Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2417296B (en) * | 2003-05-29 | 2007-11-14 | Spicket Valves & Pumps Ltd | Liner retention system |
WO2004106743A1 (en) * | 2003-05-29 | 2004-12-09 | Spicket Valves And Pumps Limited | Liner retention system |
GB2417296A (en) * | 2003-05-29 | 2006-02-22 | Spicket Valves & Pumps Ltd | Liner retention system |
US20070006726A1 (en) * | 2003-05-29 | 2007-01-11 | Spicket Valves And Pumps Limited | Liner retention system |
US8186263B2 (en) | 2003-05-29 | 2012-05-29 | Spicket Valves & Pumps Ltd. | Liner retention system |
US7748310B2 (en) | 2003-05-29 | 2010-07-06 | Spickey Valves and Pumps Limited | Liner retention system |
US20100236402A1 (en) * | 2003-05-29 | 2010-09-23 | Spicket Valves And Pumps Limited | Liner Retention System |
US20080279683A1 (en) * | 2003-05-29 | 2008-11-13 | Spicket Valves And Pumps Limited | Liner retention system |
US8225694B2 (en) | 2003-10-08 | 2012-07-24 | Spicket Valves And Pumps Limited | Piston rod assembly |
US20070209473A1 (en) * | 2003-10-08 | 2007-09-13 | Spicket Valves And Pumps Limited | Piston Rod Assembly |
GB2409709A (en) * | 2003-12-30 | 2005-07-06 | Spicket Valves & Pumps Ltd | Cylinder liner retention system |
GB2409709B (en) * | 2003-12-30 | 2007-04-11 | Spicket Valves & Pumps Ltd | Improved liner retention system |
US8511218B2 (en) | 2008-12-08 | 2013-08-20 | Bentec Gmbh Drilling & Oilfield Systems | Clamping device for cylinder sleeves and use thereof, and mud pump having a clamping |
US20110236238A1 (en) * | 2008-12-08 | 2011-09-29 | Bentec Gmbh Drilling & Oilfield Systems | Clamping device for cylinder sleeves and use thereof, and mud pump having a clamping |
US20100275774A1 (en) * | 2009-04-30 | 2010-11-04 | Tsc Offshore Group Limited | Biaxial alignment assembly for force delivery device |
US20100275773A1 (en) * | 2009-04-30 | 2010-11-04 | Tsc Offshore Group Limited | Pump liner retention device |
US8522667B2 (en) | 2009-04-30 | 2013-09-03 | Tsc Offshore Group Limited | Pump liner retention device |
DE102011056712A1 (en) * | 2011-12-20 | 2013-06-20 | Bentec Gmbh Drilling & Oilfield Systems | Clamping device for valve cover at scavenge pump for deep drilling operation, has stud bolt provided for attachment of blank holder at adjusting ring and comprising measuring unit for measuring or controlling extension tension of stud bolt |
DE102011056712B4 (en) | 2011-12-20 | 2023-03-16 | Bentec Gmbh Drilling & Oilfield Systems | Valve cover for a mud pump in deep drilling operations |
US10041594B2 (en) | 2014-12-15 | 2018-08-07 | Forum Us, Inc. | Energized screw gland |
US9995300B2 (en) | 2015-12-02 | 2018-06-12 | Forum Us, Inc. | Cartridge retention system |
US10252405B2 (en) | 2016-05-19 | 2019-04-09 | Forum Us, Inc. | Bolt tensioning system |
US11454321B2 (en) | 2019-05-01 | 2022-09-27 | Gd Energy Products, Llc | Hydraulic fluid pump and stuffing box assembly for same |
Also Published As
Publication number | Publication date |
---|---|
GB2285489B (en) | 1997-05-21 |
GB9325388D0 (en) | 1994-02-16 |
GB9424576D0 (en) | 1995-01-25 |
GB2285489A (en) | 1995-07-12 |
US5572920A (en) | 1996-11-12 |
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