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Oil seal
PATENTS Heat sealable seal Applicant: Manufacture Generale de Joints, France A heat-sealable seal for the mouth of a vessel is described. It includes a substrate made of an expanded polyester layer, connected by adhesive to a lid that includes an aluminium foil and a heat-sealable film. The aluminium foil and the film are connected by a binder. Publication number: WO/2008/125784 Inventors: S. Triquet et al. Publication date: 23 October 2008
Novel secondary seal for containers Applicant: Manufacture Generale de Joints, France This invention relates to a secondary seal to be inserted under a plug or a cap. It comprises a bearing made of an expanded polyester foam and may be optionally covered on one face thereof with a film of polymer material other than polyethylene. Publication number: WO/2008/125785 Inventors: S. Triquet et al. Publication date: 23 October 2008
The rotary shaft lip seal described in WO/2008/126478 has an intermediate seal section (10) which has a screw feature (11) designed to suck lubricant into the dynamic sealing surface.
ensuring intimate contact with the circumferential surface of the mating shaft. Publication number: WO/2008/126478 Inventors: H. Matsui et al. Publication date: 23 October 2008
Sealing structure and gasket
section contiguous to the bottom surface section. The irregularly shaped section is easily separably secured to an irregularly shaped groove formed in a predetermined portion of a resin film. The gasket is produced in such a way that a resin film is inserted between a pair of dies, either of which has a groovelike cavity having an irregular cross-sectional shape. The dies are closed and thermoplastic elastomer is injected from the resin film side toward the irregularly shaped cavity to form an irregularly shaped groove and to simultaneously form the irregularly shaped gasket. The gasket and the resin film are secured together under conditions where the film is not fusion bonded to the gasket. Alternatively vacuum moulding can be used for the process. Publication number: WO/2008/126618 Inventors: K. Kusakawa et al. Publication date: 23 October 2008 Editor’s comment: I have included most of the English abstract, hopefully it will mean something to those skilled in the art of elastomer moulding techniques.
Method of forming a seal to a gap, and use in hose portion and hose arrangement Applicant: Bau-How AS, Norway A seal arrangement for use between adjoining constructional sections is described. A hollow hose section is used as a seal. It is assembled to be an interference both radially and longitudinally and additionally contains a viscous filler material that can ‘set’. Considerable detail on the design and assembly with various optional sections are illustrated. Publication number: WO/2008/125960 Inventor: H.-B. Klersy Publication date: 23 October 2008
Oil seal Applicant: NOK Corporation, Japan A rotary shaft lip seal with hydrodynamic aids designed to improve the lubrication of the seal. It has a conventional hydrodynamic aid on the atmospheric side of the seal (9). There is then what is defined as a intermediate surface (10) between the oil side and atmospheric side slopes (7, 8). This surface has an oppositely threaded screw section (11), designed to suck the sealed fluid in to the intermediate surface. The threaded section (11) does not reach the boundary (13) between the intermediate surface (10) and the atmospheric side slope (8) 14
Sealing Technology
An example of the variable section gasket with transition sections described in WO/2008/126597.
Applicant: NOK Corporation, Japan This patent describes a gasket that is designed to be used in a situation where only some sections are fitted in a groove. Sections fitted in a groove may have a deep section (111) and stabilising features (151). Other sections may fit over a part of the component (120). There are transition sections between the various portions of the gasket (150). Publication number: WO/2008/126597 Inventors: S. Yoshitsune et al. Publication date: 23 October 2008
Irregularly shaped gasket temporarily integral with film, and production method Applicant: NHK Spring Co Ltd, Japan An irregularly shaped elastic gasket includes a cross-sectional shape having a flat bottom surface section and an irregularly shaped
An irregular shaped elastomer gasket as manufactured by the process described in WO/2008/126618.
Container and lid combination with sealing gasket and closing ring Applicant: Rieke Corporation, USA A new design that can be applied to the sealing of drums used for containing viscous materials and powders etc is described. It is applicable to all sizes from 5litres up to industrial sized drums. The geometry of the drum lip and the clamp have been modified. The seal may be either of dual density or hollow. The purpose is to provide reliable re-sealing of the lid with a lower clamping force. The seal can be used with conventional drums and other seals may be used with the re-designed drums. Publication number: WO/2008/127788 Inventor: G.M. Baughman Publication date: 23 October 2008
February 2009
Novel secondary seal for containers Applicant: Manufacture Generale de Joints, France This invention relates to a secondary seal to be inserted under a plug or a cap. It comprises a bearing made of an expanded polyester foam and may be optionally covered on one face thereof with a film of polymer material other than polyethylene. Publication number: WO/2008/125785 Inventors: S. Triquet et al. Publication date: 23 October 2008
The rotary shaft lip seal described in WO/2008/126478 has an intermediate seal section (10) which has a screw feature (11) designed to suck lubricant into the dynamic sealing surface.
ensuring intimate contact with the circumferential surface of the mating shaft. Publication number: WO/2008/126478 Inventors: H. Matsui et al. Publication date: 23 October 2008
Sealing structure and gasket
section contiguous to the bottom surface section. The irregularly shaped section is easily separably secured to an irregularly shaped groove formed in a predetermined portion of a resin film. The gasket is produced in such a way that a resin film is inserted between a pair of dies, either of which has a groovelike cavity having an irregular cross-sectional shape. The dies are closed and thermoplastic elastomer is injected from the resin film side toward the irregularly shaped cavity to form an irregularly shaped groove and to simultaneously form the irregularly shaped gasket. The gasket and the resin film are secured together under conditions where the film is not fusion bonded to the gasket. Alternatively vacuum moulding can be used for the process. Publication number: WO/2008/126618 Inventors: K. Kusakawa et al. Publication date: 23 October 2008 Editor’s comment: I have included most of the English abstract, hopefully it will mean something to those skilled in the art of elastomer moulding techniques.
Method of forming a seal to a gap, and use in hose portion and hose arrangement Applicant: Bau-How AS, Norway A seal arrangement for use between adjoining constructional sections is described. A hollow hose section is used as a seal. It is assembled to be an interference both radially and longitudinally and additionally contains a viscous filler material that can ‘set’. Considerable detail on the design and assembly with various optional sections are illustrated. Publication number: WO/2008/125960 Inventor: H.-B. Klersy Publication date: 23 October 2008
Oil seal Applicant: NOK Corporation, Japan A rotary shaft lip seal with hydrodynamic aids designed to improve the lubrication of the seal. It has a conventional hydrodynamic aid on the atmospheric side of the seal (9). There is then what is defined as a intermediate surface (10) between the oil side and atmospheric side slopes (7, 8). This surface has an oppositely threaded screw section (11), designed to suck the sealed fluid in to the intermediate surface. The threaded section (11) does not reach the boundary (13) between the intermediate surface (10) and the atmospheric side slope (8) 14
Sealing Technology
An example of the variable section gasket with transition sections described in WO/2008/126597.
Applicant: NOK Corporation, Japan This patent describes a gasket that is designed to be used in a situation where only some sections are fitted in a groove. Sections fitted in a groove may have a deep section (111) and stabilising features (151). Other sections may fit over a part of the component (120). There are transition sections between the various portions of the gasket (150). Publication number: WO/2008/126597 Inventors: S. Yoshitsune et al. Publication date: 23 October 2008
Irregularly shaped gasket temporarily integral with film, and production method Applicant: NHK Spring Co Ltd, Japan An irregularly shaped elastic gasket includes a cross-sectional shape having a flat bottom surface section and an irregularly shaped
An irregular shaped elastomer gasket as manufactured by the process described in WO/2008/126618.
Container and lid combination with sealing gasket and closing ring Applicant: Rieke Corporation, USA A new design that can be applied to the sealing of drums used for containing viscous materials and powders etc is described. It is applicable to all sizes from 5litres up to industrial sized drums. The geometry of the drum lip and the clamp have been modified. The seal may be either of dual density or hollow. The purpose is to provide reliable re-sealing of the lid with a lower clamping force. The seal can be used with conventional drums and other seals may be used with the re-designed drums. Publication number: WO/2008/127788 Inventor: G.M. Baughman Publication date: 23 October 2008
February 2009