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Screw-connection pipe fitting with elastomer seal
PATENTS Screw-connection pipe fitting with elastomer seal Applicant: Legris Sas, France A screw-connection pipe fitting with an elastomer seal forms the subject of this patent. The main feature of the design is that a series of grooves and fluid passages are used to ensure that the seal is pressurised by the fluid pressure in the pipe. This includes a groove in the threaded section of the fitting and various designs of groove or ‘castellation’ around the seal groove. The pressure is fed to the back side of the seal to ensure that it is energised against the fitting flange face. A number of seal design options including O-ring, Quad Ring and other shapes are illustrated. Patent number: WO/2010/081958 Inventor: P. Le Quere Publication date: 22 July 2010
A taper screw-thread pipe joint is described in which the threads are designed to ensure that sealing is performed by the seal (52). Alternative sealing arrangements are also illustrated, showing face seals on a flange with various geometries. Patent number: WO/2010/082534 Inventors: S. Joh and Y. Saito Publication date: 22 July 2010
Fuel-cell seal Applicant: UTC Power Corp, USA This seal – for fuel-cell plates – is moulded around the periphery of the plate such that it can seal the periphery and the two opposing faces of the plate. Patent number: WO/2010/082934 Inventor: K. Ridgeway Publication date: 22 July 2010
Barrier seal Applicants: Schlumberger Canada Ltd, Canada; Services Petroliers Schlumberger, France; Schlumberger Holdings Ltd, Virgin (British) Islands; and Schlumberger Technology Bv, The Netherlands This invention concerns an assembly that is designed to securely contain ‘feed-throughs’ for down-hole instrumentation. A flange contains the connections for the instrumentation. The outside diameter of the flange is designed to be sealed in a clamp-type metal pipe fitting. The main purpose is to ensure that the instrumentation connections are handled reliably. Patent number: WO/2010/082186 Inventors: N. Kathol, V.J. Nguy and C.V. Popilian Publication date: 22 July 2010
Pipe joint Applicant: SMC Kabushiki Kaisha, Japan
A pipe joint seal that is designed to ensure sealing by the O-ring (52) is detailed by patent WO/2010/082534.
14
Sealing Technology
RFID-tagged seal Applicant: Parker-Hannifin Corp, USA A method is described by which a radio-frequency identification (RFID) tag is included in the pre-form of an elastomer seal and moulded into place (embedded in the seal). O-rings and alternative cross-sections are illustrated. The RFID transponder may be generally centred in the seal cross-section. In this way, the transponder may be entirely encased within the seal body so that it does not interfere with the proper functioning of the seal when it is placed in service. Patent number: WO/2010/082945 Inventors: S.F. Stewart, E.J. Banks and D.H. Ewing Publication date: 22 July 2010
Dynamic seal for a moulding process Applicant: Pilkington Group Ltd, UK This invention relates to a mould seal. It improves a method used to mould a polymeric material onto a portion of the periphery of a glass window for a vehicle. Common moulding methods include reaction injection moulding (RIM) and injection moulding. Such mouldedon members have become increasingly complex and, as a result, the moulding apparatus used to make such moulded-on members have also become more complicated. A method of moulding that requires a single, soft seal, and which would permit complex moulded profiles extending to (and even beyond) the edge of a major surface of the substrate to be created, has been developed. The flexible arm is capable of movement because of the presence of an ‘elbow’. This enables the flexible arm to move into and out of sealing contact with at least a portion of a peripheral edge of the sheet of substrate material. At the same time, the straight arm portion is adapted to engage – creating a seal – with at least a portion of a major surface of the substrate material. Patent number: WO/2010/083027 Inventors: C. Sitterlet and R.R. Frutig Publication date: 22 July 2010
Sealing and attachment for fluid filter Applicant: Cummins Filtration Ip Inc, USA The sealing and attachment configuration that is described is designed to make it easier to install a fluid filter. This is achieved by providing an in-line connection and an inline seal that separates the ‘dirty’ fluid (to be filtered) from ‘clean’, filtered fluid. This unit is located on an end-face of the filter nut plate and the attachment configuration resides on an external surface of the nut plate. One application that is noted for this design is a spin-on-type filter. A pair of concentric seals separate the fluids and seal against the mounting flange. Patent number: WO/2010/083005 Inventors: I.C. Bagci and T.W. Shults Publication date: 22 July 2010
An arrangement for moulding a seal onto the edge of an automotive window is detailed by patent WO/2010/083027. The approach described uses a dynamic mould seal to control the elastomer flow around the glass edge.
Seal with stress-control groove Applicant: Cameron International Corp, USA This design is specifically targeted at seals used in oil production applications, involving a Christmas tree, a casing hanger, a casing head, a casing string, a tubing hanger, a tubing head, a tubing string, a running tool or a blow-out preventer. The seal has one
November 2010
A taper screw-thread pipe joint is described in which the threads are designed to ensure that sealing is performed by the seal (52). Alternative sealing arrangements are also illustrated, showing face seals on a flange with various geometries. Patent number: WO/2010/082534 Inventors: S. Joh and Y. Saito Publication date: 22 July 2010
Fuel-cell seal Applicant: UTC Power Corp, USA This seal – for fuel-cell plates – is moulded around the periphery of the plate such that it can seal the periphery and the two opposing faces of the plate. Patent number: WO/2010/082934 Inventor: K. Ridgeway Publication date: 22 July 2010
Barrier seal Applicants: Schlumberger Canada Ltd, Canada; Services Petroliers Schlumberger, France; Schlumberger Holdings Ltd, Virgin (British) Islands; and Schlumberger Technology Bv, The Netherlands This invention concerns an assembly that is designed to securely contain ‘feed-throughs’ for down-hole instrumentation. A flange contains the connections for the instrumentation. The outside diameter of the flange is designed to be sealed in a clamp-type metal pipe fitting. The main purpose is to ensure that the instrumentation connections are handled reliably. Patent number: WO/2010/082186 Inventors: N. Kathol, V.J. Nguy and C.V. Popilian Publication date: 22 July 2010
Pipe joint Applicant: SMC Kabushiki Kaisha, Japan
A pipe joint seal that is designed to ensure sealing by the O-ring (52) is detailed by patent WO/2010/082534.
14
Sealing Technology
RFID-tagged seal Applicant: Parker-Hannifin Corp, USA A method is described by which a radio-frequency identification (RFID) tag is included in the pre-form of an elastomer seal and moulded into place (embedded in the seal). O-rings and alternative cross-sections are illustrated. The RFID transponder may be generally centred in the seal cross-section. In this way, the transponder may be entirely encased within the seal body so that it does not interfere with the proper functioning of the seal when it is placed in service. Patent number: WO/2010/082945 Inventors: S.F. Stewart, E.J. Banks and D.H. Ewing Publication date: 22 July 2010
Dynamic seal for a moulding process Applicant: Pilkington Group Ltd, UK This invention relates to a mould seal. It improves a method used to mould a polymeric material onto a portion of the periphery of a glass window for a vehicle. Common moulding methods include reaction injection moulding (RIM) and injection moulding. Such mouldedon members have become increasingly complex and, as a result, the moulding apparatus used to make such moulded-on members have also become more complicated. A method of moulding that requires a single, soft seal, and which would permit complex moulded profiles extending to (and even beyond) the edge of a major surface of the substrate to be created, has been developed. The flexible arm is capable of movement because of the presence of an ‘elbow’. This enables the flexible arm to move into and out of sealing contact with at least a portion of a peripheral edge of the sheet of substrate material. At the same time, the straight arm portion is adapted to engage – creating a seal – with at least a portion of a major surface of the substrate material. Patent number: WO/2010/083027 Inventors: C. Sitterlet and R.R. Frutig Publication date: 22 July 2010
Sealing and attachment for fluid filter Applicant: Cummins Filtration Ip Inc, USA The sealing and attachment configuration that is described is designed to make it easier to install a fluid filter. This is achieved by providing an in-line connection and an inline seal that separates the ‘dirty’ fluid (to be filtered) from ‘clean’, filtered fluid. This unit is located on an end-face of the filter nut plate and the attachment configuration resides on an external surface of the nut plate. One application that is noted for this design is a spin-on-type filter. A pair of concentric seals separate the fluids and seal against the mounting flange. Patent number: WO/2010/083005 Inventors: I.C. Bagci and T.W. Shults Publication date: 22 July 2010
An arrangement for moulding a seal onto the edge of an automotive window is detailed by patent WO/2010/083027. The approach described uses a dynamic mould seal to control the elastomer flow around the glass edge.
Seal with stress-control groove Applicant: Cameron International Corp, USA This design is specifically targeted at seals used in oil production applications, involving a Christmas tree, a casing hanger, a casing head, a casing string, a tubing hanger, a tubing head, a tubing string, a running tool or a blow-out preventer. The seal has one
November 2010