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Seal-application system
PATENTS Each one of the pair of side surfaces and the surrounding surface are moulded. Patent number: WO/2012/157383 Inventor: T. Mouri Publication date: 22 November 2012
Patent number: WO/2012/161099 Inventors: K. Odagiri and Y. Hattori Publication date: 29 November 2012
Inventors: T. Yamamoto, T. Katayama, R. Yokota and C. Asanuma Publication date: 29 November 2012
Seal-application system
Sealing lip
Borehole seal back-up
Applicant: Mitsubishi Heavy Industries Ltd, Japan The seal-application system detailed by this patent is provided with a sealant-discharge device that has a discharge-punch drive unit which presses a discharge punch into a seal cartridge filled with sealant. The force with which the discharge-punch drive unit presses the discharge punch into the cartridge is varied in order to keep the sealant discharge rate constant. This configuration also makes it possible to keep the rate constant even when a sealant, which increases in viscosity over time, is used. Patent number: WO/2012/161169 Inventors: Y. Ikeda, T. Funato, T. Inagaki, M. Nakamura, Y. Ikeda, K. Kuroi, A. Suzuki, Y. Kondo and T. Yamashita Publication date: 29 November 2012
Applicant: Aktiebolaget SKF, Sweden The sealing lip (170) detailed by this patent is used to seal a first space (250) from a second space (260), with respect to a liquid medium present in the first space. According to this patent, a bearing surface (210) is designed to rest against the sealing surface (220) of a component (230) which can be moved relative to the sealing lip (170) in a specific direction (240). The patent describes a groove (270) in the bearing surface (210) that conducts the liquid medium to the first space (250) through a shift in the direction of movement when the liquid medium penetrates the groove (270). The groove runs entirely within the bearing surface (and is surrounded by the bearing surface). In this way, the sealing effect of the lip is optionally improved. Patent number: WO/2012/160148 Inventors: H. Benedix, J. Kurth, J. Netzer, C. Passow and W. Seewald Publication date: 29 November 2012
Applicant: Baker Hughes Inc, USA In down-hole drilling operations, packers or seal elements are ubiquitously used for a myriad sealing and inhibition applications. This patent provides details of a method and assembly for reducing the radial gap between (radially) proximate components. These include a setting member that has a first dimension which partially defines the radial gap. The setting member includes a circumferential groove extending radially from the first dimension, and a first toroid having a second dimension. The setting member is arranged to engage with the first toroid, enabling the boundary dimension of the assembly to be extended towards the radial gap, reducing it. The circumferential groove is arranged to catch the first toroid when the setting member is fully engaged. Patent number: WO/2012/162159 Inventors: A.L. Farrar, E.T Wood, G.C. Badke, R.O. Castillo and A.P. Foster Publication date: 29 November 2012
Composite seal member for an electronic device Applicant: Polymatech Co Ltd, Japan In this invention, a seal member (11) is used in a battery cover (12) that is fitted into a casing (13) of an electronic device. The seal member is configured from a silicone gel moulding. The compression set (JIS K6262 (ISO 815)) – measured under the condition that the silicone gel moulding is left as it is for 22 hours at 70°C, with a compressibility of 50–80% – is 5% or less. Penetration (JIS K2220 (ISO 2137)) falls within the range of 60–130. The seal member, which improves the sealing action between the battery cover and the casing, prevents water from entering the battery and also prevents the cover and the casing from being deformed and broken.
A composite seal member for the battery cover of an electronic device forms the subject of patent WO/2012/161099.
14
Sealing Technology
Vacuum seal arrangement for use in a plasma-processing chamber Applicant: Lam Research Corp, USA The vacuum seal arrangement described by this patent consists of a one-piece elastomeric gasket that has a set of (first and second) O-rings interconnected by a planar web. A first part has a planar sealing surface, containing a dove-tail groove to hold the first O-ring, and a square-walled groove for retaining the second O-ring. This part further includes at least one passage in the planar sealing surface surrounded by the first O-ring, or second O-ring. Patent number: WO/2012/162051 Inventor: H. Singh Publication date: 29 November 2012
Seal member Applicant: Uchiyama Manufacturing Corp, Japan The seal member described consists of a rubber base that includes a surface which is in elastic, sliding contact with a partner member. It contains a large number of small holes, with a depth of 3–20 μm and an opening size of not more than 70 μm. These are formed using a laser. The percentage of the area occupied by these openings is set at 5–50%. According to the inventors, this produces a low-friction seal material. When used in automotive applications – for example, as a seal ring in a wheel bearing – it will reduce rotational torque and help to lower fuel consumption. Patent number: WO/2012/161259
The lip structure that provides enhanced sealing, which is detailed by patent WO/2012/160148.
Turbine seals Applicant: Siemens Energy Inc, USA This invention relates to seals between components in a combustion turbine engine, but particularly to seals between air-cooled components along the combustion gas flow-path in the turbine section. Gas turbine engines are designed to extract energy
March 2013
Patent number: WO/2012/161099 Inventors: K. Odagiri and Y. Hattori Publication date: 29 November 2012
Inventors: T. Yamamoto, T. Katayama, R. Yokota and C. Asanuma Publication date: 29 November 2012
Seal-application system
Sealing lip
Borehole seal back-up
Applicant: Mitsubishi Heavy Industries Ltd, Japan The seal-application system detailed by this patent is provided with a sealant-discharge device that has a discharge-punch drive unit which presses a discharge punch into a seal cartridge filled with sealant. The force with which the discharge-punch drive unit presses the discharge punch into the cartridge is varied in order to keep the sealant discharge rate constant. This configuration also makes it possible to keep the rate constant even when a sealant, which increases in viscosity over time, is used. Patent number: WO/2012/161169 Inventors: Y. Ikeda, T. Funato, T. Inagaki, M. Nakamura, Y. Ikeda, K. Kuroi, A. Suzuki, Y. Kondo and T. Yamashita Publication date: 29 November 2012
Applicant: Aktiebolaget SKF, Sweden The sealing lip (170) detailed by this patent is used to seal a first space (250) from a second space (260), with respect to a liquid medium present in the first space. According to this patent, a bearing surface (210) is designed to rest against the sealing surface (220) of a component (230) which can be moved relative to the sealing lip (170) in a specific direction (240). The patent describes a groove (270) in the bearing surface (210) that conducts the liquid medium to the first space (250) through a shift in the direction of movement when the liquid medium penetrates the groove (270). The groove runs entirely within the bearing surface (and is surrounded by the bearing surface). In this way, the sealing effect of the lip is optionally improved. Patent number: WO/2012/160148 Inventors: H. Benedix, J. Kurth, J. Netzer, C. Passow and W. Seewald Publication date: 29 November 2012
Applicant: Baker Hughes Inc, USA In down-hole drilling operations, packers or seal elements are ubiquitously used for a myriad sealing and inhibition applications. This patent provides details of a method and assembly for reducing the radial gap between (radially) proximate components. These include a setting member that has a first dimension which partially defines the radial gap. The setting member includes a circumferential groove extending radially from the first dimension, and a first toroid having a second dimension. The setting member is arranged to engage with the first toroid, enabling the boundary dimension of the assembly to be extended towards the radial gap, reducing it. The circumferential groove is arranged to catch the first toroid when the setting member is fully engaged. Patent number: WO/2012/162159 Inventors: A.L. Farrar, E.T Wood, G.C. Badke, R.O. Castillo and A.P. Foster Publication date: 29 November 2012
Composite seal member for an electronic device Applicant: Polymatech Co Ltd, Japan In this invention, a seal member (11) is used in a battery cover (12) that is fitted into a casing (13) of an electronic device. The seal member is configured from a silicone gel moulding. The compression set (JIS K6262 (ISO 815)) – measured under the condition that the silicone gel moulding is left as it is for 22 hours at 70°C, with a compressibility of 50–80% – is 5% or less. Penetration (JIS K2220 (ISO 2137)) falls within the range of 60–130. The seal member, which improves the sealing action between the battery cover and the casing, prevents water from entering the battery and also prevents the cover and the casing from being deformed and broken.
A composite seal member for the battery cover of an electronic device forms the subject of patent WO/2012/161099.
14
Sealing Technology
Vacuum seal arrangement for use in a plasma-processing chamber Applicant: Lam Research Corp, USA The vacuum seal arrangement described by this patent consists of a one-piece elastomeric gasket that has a set of (first and second) O-rings interconnected by a planar web. A first part has a planar sealing surface, containing a dove-tail groove to hold the first O-ring, and a square-walled groove for retaining the second O-ring. This part further includes at least one passage in the planar sealing surface surrounded by the first O-ring, or second O-ring. Patent number: WO/2012/162051 Inventor: H. Singh Publication date: 29 November 2012
Seal member Applicant: Uchiyama Manufacturing Corp, Japan The seal member described consists of a rubber base that includes a surface which is in elastic, sliding contact with a partner member. It contains a large number of small holes, with a depth of 3–20 μm and an opening size of not more than 70 μm. These are formed using a laser. The percentage of the area occupied by these openings is set at 5–50%. According to the inventors, this produces a low-friction seal material. When used in automotive applications – for example, as a seal ring in a wheel bearing – it will reduce rotational torque and help to lower fuel consumption. Patent number: WO/2012/161259
The lip structure that provides enhanced sealing, which is detailed by patent WO/2012/160148.
Turbine seals Applicant: Siemens Energy Inc, USA This invention relates to seals between components in a combustion turbine engine, but particularly to seals between air-cooled components along the combustion gas flow-path in the turbine section. Gas turbine engines are designed to extract energy
March 2013