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Seal for a gas turbine combustor
PATENTS Methods and apparatuses for generating a seal between a conduit and a reservoir well Applicant: SmithKline Beecham Corporation, USA This patent is concerned with the sealing of microbiological samples, and the prevention of carry over between samples during operations, such as sampling with a
pipette or the introduction of a pipe or conduit. However, it is rather difficult to extract any technical detail. Patent number: WO 2007/021864 Inventors: G.A. Votaw et al. Publication date: 22 February 2007
Inner guide seal assembly for a ram type bop Applicant: National-Oilwell DHT LP, USA An improved ram inner seal assembly used in ram-type blow out preventers (BOPs) is disclosed. A new design of inner guide seal assembly comprises a guide body and specially shaped sealing element. When
Seal for a gas turbine combustor Applicant: Mitsubishi Heavy Industries Ltd, Japan A seal for gas turbine combustor tail tubes is described. It is designed to provide good sealing performance over a long period without producing wear and deterioration due to thermal deformation and vibration at high temperatures. There are recessed grooves in the
opposed faces of the flanges. The seal comprises a seal member and a plate spring. The plate spring energizes the seal into contact with the gas passage side faces. A number of alternatives geometries for the seal and plate spring are shown. Patent number: WO 2007/023734 Inventors: N. Kunitake et al. Publication date: 1 March 2007
the BOP is closed the wireline is centralized by an inner guide seal which helps ensure a positive seal and prevent potential damage to the wireline. Patent number: WO 2007/024372 Inventors: C.S. Isaacks et al. Publication date: 1 March 2007
Valve stem seal Applicant: Zhejiang China Valve Co Ltd, China A stem seal for valve applications such as ball valves is described. The seal is of triangular section when new, although it may become
truncated with wear. The housing and gland follower are matched to the triangular seal. Patent number: WO 2007/022721 Inventor: C. Xu Publication date: 1 March 2007
Rod guide seal
Barrier gasket Applicant: Freudenberg-NOK GP, USA A barrier gasket that uses two different materials for the seal is described. The outer material can be selected to provide low permeation, chemical resistance to the fluid and temperature resistance. As this may be a high cost material, and also of inferior
An example of the gas turbine combustor tube seal with plate spring energizer.
mechanical properties, a lower cost and more resilient seal with improved long term properties can be provided by using a core of alternative elastomer. A number of alternative configurations are illustrated. Patent number: WO 2007/024212 Inventor: C.D. Spurrell Publication date: 1 March 2007
Applicant: Tenneco Automotive Operating Co Inc, USA A design for the rod bearing and seal arrangement of vehicle shock absorbers is described. A feature is that there are two guide bearings for the rod. The seal may be located either between the two
bearings or outside the bearings and adjacent to one of them. No particular seal designs are described. Patent number: WO 2007/027693 Inventors: D.T. Keil, M. Roessle and L. Miller Publication date: 8 March 2007
Threaded joint for steel pipes Applicants: Sumitomo Metal Industries Ltd, Japan and Vallourec Mannesmann Oil & Gas France, France A threaded joint for oil and gas well steel pipes is described which is designed for installations using either ‘green dope’ or without any further lubrication. The threaded joint has an initial plating layer of either Sn-Bi
or Sn-Bi-Cu alloy on the contact surface of at least one component of the pin and box of the joint. A second plating layer of Sn, Cu or Ni may also be used. This will be covered with a lubricating coating, and particularly a solid lubricating coating. Patent number: WO 2007/026970 Inventors: S. Nagasaku et al. Publication date: 8 March 2007
Low stress to seal EPTFE gasket material
An example of the automotive barrier seal design that uses an outer layer of material that can be selected for low permeation or good fluid resistance with a core material selected for mechanical properties.
Sealing Technology June 2007
Applicant: Gore Enterprise Holdings Inc, USA A low stress-to-seal gasket material is described manufactured from a minimum of two tapes of porous PTFE with a substantially air impermeable layer at the interface of the two tape layers. The
tape layers each have a non-porous region extending the tape length and separating two porous regions. The non-porous regions of the individual tape layers are not aligned. Patent number: WO 2007/024382 Inventor: K.E. Dove Publication date: 1 March 2007 13
pipette or the introduction of a pipe or conduit. However, it is rather difficult to extract any technical detail. Patent number: WO 2007/021864 Inventors: G.A. Votaw et al. Publication date: 22 February 2007
Inner guide seal assembly for a ram type bop Applicant: National-Oilwell DHT LP, USA An improved ram inner seal assembly used in ram-type blow out preventers (BOPs) is disclosed. A new design of inner guide seal assembly comprises a guide body and specially shaped sealing element. When
Seal for a gas turbine combustor Applicant: Mitsubishi Heavy Industries Ltd, Japan A seal for gas turbine combustor tail tubes is described. It is designed to provide good sealing performance over a long period without producing wear and deterioration due to thermal deformation and vibration at high temperatures. There are recessed grooves in the
opposed faces of the flanges. The seal comprises a seal member and a plate spring. The plate spring energizes the seal into contact with the gas passage side faces. A number of alternatives geometries for the seal and plate spring are shown. Patent number: WO 2007/023734 Inventors: N. Kunitake et al. Publication date: 1 March 2007
the BOP is closed the wireline is centralized by an inner guide seal which helps ensure a positive seal and prevent potential damage to the wireline. Patent number: WO 2007/024372 Inventors: C.S. Isaacks et al. Publication date: 1 March 2007
Valve stem seal Applicant: Zhejiang China Valve Co Ltd, China A stem seal for valve applications such as ball valves is described. The seal is of triangular section when new, although it may become
truncated with wear. The housing and gland follower are matched to the triangular seal. Patent number: WO 2007/022721 Inventor: C. Xu Publication date: 1 March 2007
Rod guide seal
Barrier gasket Applicant: Freudenberg-NOK GP, USA A barrier gasket that uses two different materials for the seal is described. The outer material can be selected to provide low permeation, chemical resistance to the fluid and temperature resistance. As this may be a high cost material, and also of inferior
An example of the gas turbine combustor tube seal with plate spring energizer.
mechanical properties, a lower cost and more resilient seal with improved long term properties can be provided by using a core of alternative elastomer. A number of alternative configurations are illustrated. Patent number: WO 2007/024212 Inventor: C.D. Spurrell Publication date: 1 March 2007
Applicant: Tenneco Automotive Operating Co Inc, USA A design for the rod bearing and seal arrangement of vehicle shock absorbers is described. A feature is that there are two guide bearings for the rod. The seal may be located either between the two
bearings or outside the bearings and adjacent to one of them. No particular seal designs are described. Patent number: WO 2007/027693 Inventors: D.T. Keil, M. Roessle and L. Miller Publication date: 8 March 2007
Threaded joint for steel pipes Applicants: Sumitomo Metal Industries Ltd, Japan and Vallourec Mannesmann Oil & Gas France, France A threaded joint for oil and gas well steel pipes is described which is designed for installations using either ‘green dope’ or without any further lubrication. The threaded joint has an initial plating layer of either Sn-Bi
or Sn-Bi-Cu alloy on the contact surface of at least one component of the pin and box of the joint. A second plating layer of Sn, Cu or Ni may also be used. This will be covered with a lubricating coating, and particularly a solid lubricating coating. Patent number: WO 2007/026970 Inventors: S. Nagasaku et al. Publication date: 8 March 2007
Low stress to seal EPTFE gasket material
An example of the automotive barrier seal design that uses an outer layer of material that can be selected for low permeation or good fluid resistance with a core material selected for mechanical properties.
Sealing Technology June 2007
Applicant: Gore Enterprise Holdings Inc, USA A low stress-to-seal gasket material is described manufactured from a minimum of two tapes of porous PTFE with a substantially air impermeable layer at the interface of the two tape layers. The
tape layers each have a non-porous region extending the tape length and separating two porous regions. The non-porous regions of the individual tape layers are not aligned. Patent number: WO 2007/024382 Inventor: K.E. Dove Publication date: 1 March 2007 13