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Form seal for a process sensor
PATENTS of the magnetic force to provide pressure capability but is less susceptible to axial movement of the shaft than opposed knife edges. Patent number: WO/2007/129148 Inventor: Z. Li Publication date: 15 November 2007
Seal of a guide carriage of a linear guide Applicant: Schaeffler KG. Germany This invention relates to a seal for a linear guide rail. To improve sealing of the guide carriage, the U section seal is mounted partly on lateral external faces of the guide carriage. At least one sealing lip contacts the connecting structure that is joined to the guide rail. Patent number: WO/2007/125068 Inventors: R. Moseberg, K. Schwarz and T. Habelitz Publication date: 8 November 2007
Permanently lubricated film gasket Applicant: Springseal, Inc. USA A seal for connectors used for corrugated pipe is described. The seal is a hollow moulding that fits into a corrugation in the pipe. The outer surface of the seal has a coating that contains a permanent lubricant which assists assembly of the pipe and seal into a parallel bore of a fitting. The outside diameter sealing lip that contacts the fitting bore has a relatively narrow section to provide flexibility. Patent number: WO/2007/130044 Inventor: M. Knapp Publication date: 15 November 2007
Seal assembly for relieving pressure Applicant: Trelleborg Sealing Solutions Germany GmbH. Germany A co-axial design of elastomer energised plastic seal that is designed to relieve inter seal pressure build up in a tandem cylinder seal arrangement. Either an axial groove or cross drilling is provided in the plastic sealing element that is positioned such that interseal pressure will move the energising O-ring towards the system pressure and open a relief port in the plastic component of the seal to vent any pressure build up between primary and secondary rod seals. A variety of potential geometries for the seal and vent are disclosed. A commercial version of this seal is illustrated in December 2007 Sealing Technology. Patent number: WO/2007/131468 Inventor: H. Jordan Publication date: 22 November 2007
March 2008
An example of the double spiral configurations illustrated in WO/2007/132747 for the moulding of large diameter seals in a confined space.
Mold for gasket, method for manufacturing and the gasket Applicant: NOK Corp. Japan This patent describes a method of moulding a large diameter endless elastomer gasket without requiring a large mould platen. The mould is designed as a double interconnected spiral enabling a long endless seal to be moulded. A number of variations of the mould spiral are illustrated. Patent number: WO/2007/132747 Inventors: K. Asai, D. Shojima and K. Kohatsu Publication date: 22 November 2007
Door seal profile Applicant: Rehau AG + Co. Germany A refrigerator door seal section is described that is designed to be held firmly in place and provide a reliable seal. One face of the seal has a projecting profile that is designed to be retained in a groove on the sealing face, for retention of the seal. A hollow section provides resilience and conformability. Patent number: WO/2007/134724 Inventors: K. Rühling and H. Hanna Publication date: 29 November 2007
Form seal for a process sensor Shaft seal Applicant: Gurtec GmbH. Germany This invention is intended to provide an improved bearing seal that will be reliable with highly loaded bearings. The basic design configuration is similar to labyrinth type bearing seals. To ensure a close clearance and avoid damage and high friction that can occur when the seal is distorted under bearing load two of the radial labyrinth plates have a triangular nose that can contact the opposing surface if relative movement of the shaft and bearing housing occur. These can then rapidly wear to a slight clearance without causing high friction. The mating parts of the seal are manufactured from different materials. Patent number: WO/2007/134576 Inventor: B. Hofmayer Publication date: 29 November 2007
The bearing labyrinth seal with a wear nose on sections of the seal to provide a close clearance and potential rubbing without high friction.
Applicant: Endress+Hauser Conducta Gesellschaft für Mess- und Regeltechnik MBH + CO. KG. Germany A seal design for process sensors is described in which two sections of seal have interlocking geometries. Patent number: WO/2007/135143 Inventors: T. Pechstein and R. Scholz Publication date: 29 November 2007
The interlocking sections of a process seal described in WO/2007/135143.
Sealing Technology
13
Seal of a guide carriage of a linear guide Applicant: Schaeffler KG. Germany This invention relates to a seal for a linear guide rail. To improve sealing of the guide carriage, the U section seal is mounted partly on lateral external faces of the guide carriage. At least one sealing lip contacts the connecting structure that is joined to the guide rail. Patent number: WO/2007/125068 Inventors: R. Moseberg, K. Schwarz and T. Habelitz Publication date: 8 November 2007
Permanently lubricated film gasket Applicant: Springseal, Inc. USA A seal for connectors used for corrugated pipe is described. The seal is a hollow moulding that fits into a corrugation in the pipe. The outer surface of the seal has a coating that contains a permanent lubricant which assists assembly of the pipe and seal into a parallel bore of a fitting. The outside diameter sealing lip that contacts the fitting bore has a relatively narrow section to provide flexibility. Patent number: WO/2007/130044 Inventor: M. Knapp Publication date: 15 November 2007
Seal assembly for relieving pressure Applicant: Trelleborg Sealing Solutions Germany GmbH. Germany A co-axial design of elastomer energised plastic seal that is designed to relieve inter seal pressure build up in a tandem cylinder seal arrangement. Either an axial groove or cross drilling is provided in the plastic sealing element that is positioned such that interseal pressure will move the energising O-ring towards the system pressure and open a relief port in the plastic component of the seal to vent any pressure build up between primary and secondary rod seals. A variety of potential geometries for the seal and vent are disclosed. A commercial version of this seal is illustrated in December 2007 Sealing Technology. Patent number: WO/2007/131468 Inventor: H. Jordan Publication date: 22 November 2007
March 2008
An example of the double spiral configurations illustrated in WO/2007/132747 for the moulding of large diameter seals in a confined space.
Mold for gasket, method for manufacturing and the gasket Applicant: NOK Corp. Japan This patent describes a method of moulding a large diameter endless elastomer gasket without requiring a large mould platen. The mould is designed as a double interconnected spiral enabling a long endless seal to be moulded. A number of variations of the mould spiral are illustrated. Patent number: WO/2007/132747 Inventors: K. Asai, D. Shojima and K. Kohatsu Publication date: 22 November 2007
Door seal profile Applicant: Rehau AG + Co. Germany A refrigerator door seal section is described that is designed to be held firmly in place and provide a reliable seal. One face of the seal has a projecting profile that is designed to be retained in a groove on the sealing face, for retention of the seal. A hollow section provides resilience and conformability. Patent number: WO/2007/134724 Inventors: K. Rühling and H. Hanna Publication date: 29 November 2007
Form seal for a process sensor Shaft seal Applicant: Gurtec GmbH. Germany This invention is intended to provide an improved bearing seal that will be reliable with highly loaded bearings. The basic design configuration is similar to labyrinth type bearing seals. To ensure a close clearance and avoid damage and high friction that can occur when the seal is distorted under bearing load two of the radial labyrinth plates have a triangular nose that can contact the opposing surface if relative movement of the shaft and bearing housing occur. These can then rapidly wear to a slight clearance without causing high friction. The mating parts of the seal are manufactured from different materials. Patent number: WO/2007/134576 Inventor: B. Hofmayer Publication date: 29 November 2007
The bearing labyrinth seal with a wear nose on sections of the seal to provide a close clearance and potential rubbing without high friction.
Applicant: Endress+Hauser Conducta Gesellschaft für Mess- und Regeltechnik MBH + CO. KG. Germany A seal design for process sensors is described in which two sections of seal have interlocking geometries. Patent number: WO/2007/135143 Inventors: T. Pechstein and R. Scholz Publication date: 29 November 2007
The interlocking sections of a process seal described in WO/2007/135143.
Sealing Technology
13