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System for sealing wires, tubes and conduits penetrating a wall member
PATENTS toroidal sealing member (or O-ring). The effect of this is that the O-ring is not deformed by pressure from the spring member and thus a relatively stiff O-ring can be used. Patent number: 7"ÉÓä£{Éänä£ÈÎ Inventor: T. Broadbent Publication date: 30 May 2014
Spherical band seal Applicant: Oiles Corp, Japan This invention relates to a spherical annular seal member that is designed to be used in a spherical pipe joint on a car exhaust pipe. The seal is used in an exhaust pipe coupling, and is provided with: a spherical band base, defined by a cylindrical inner surface, a partially convex spherical surface, and annular end-surfaces at the large-diameter and small-diameter ends of the partially convex spherical surface; and an outer layer, integrally formed on the partially convex spherical surface of the spherical band base. Patent number:Ê7"ÉÓä£{ÉänäÈ££ Inventors: K. Kurose, T. Shimura and O. Miyashita Publication date: 30 May 2014
System for sealing wires, tubes and conduits penetrating a wall member Applicant: National Oilwell Varco Lp, USA This patent describes sealing systems, but in particular a system for sealing at least one flexible longitudinal member, such as an insulated wire, a conductor, a conduit, a pipe, or a tube penetrating a wall member. In one embodiment, the system includes a sealing member that has at first set of apertures, a second set of apertures and inner and outer interface surfaces. The system also includes a clamping member, which also contains a first set of apertures and an interface surface. The set of apertures in the clamping member is configured to align with the first set of apertures in the sealing member. The first sets of apertures are configured to receive at least one flexible longitudinal member. The interface surface of the clamping member is configured to abut the inner interface surface of the sealing member. The system also includes at least one threaded blind bore in the interface surface of the clamping member, and at least one fastener, configured to draw the clamping member into engagement with the sealing member. Patent number\Ê7"ÉÓä£{Éän£ÇΣ Inventors: R.P. Munroe, L.E. Wells and A.W. Braman Publication date: 30 May 2014
March 2015
Inner seal collar with improved locking mechanism Applicant: Graf Patentverwertungs Gbr, Germany An inner seal collar that is inserted into pipes in order to seal leakage points (in the pipes) forms the subject of this patent. It consists of an expandable strip that is bent into the shape of a ring and which is preferably made of steel sheet. Parts of this strip at least partly overlap in the circumferential direction. Also incorporated is a locking device, which has at least two parallel rows of teeth, wherein a separate clamping pinion engages at least two of the rows of teeth. A characteristic of this design is the separate blocking pinion, which is paired with each of at least two clamping pinions. The blocking pinion pushes against the corresponding clamping pinion, via a respective spring element, and engages with it (clamping pinion). In addition, each of the blocking pinions also engages with the corresponding row of teeth. Patent number:Ê7"ÉÓä£{ÉäÇxx Inventors: J. Graf and J. Graf Publication date: 30 May 2014
Shaft sealing device for a hydroelectric power generator Applicant: National University Corp Kumamoto University, Japan Details are provided of a shaft seal. It is equipped with a sealing member that possesses low frictional resistance and high abrasion resistance, and creates an excellent liquid-tight seal. It is disposed around a shaft that is supported so as to enable rotation or reciprocation, but creates a liquid-tight seal (around the shaft). According to the patent, the sealing member is a porous material formed from a hydrophilic polymer resin in which the chains are cross-linked. The device described is also characterised in that the shaft creates a “bridge” between a liquid phase region and a gas phase region. The sealing member limits leakage of liquid from the liquid phase region to the gas phase region and is impregnated with an aqueous lubricating solution prepared by adding a water-soluble thickener. Patent number:Ê7"ÉÓä£{Éän{ÓxÇ Inventor: Y. Nakanishi Publication date: 5 June 2014
Cartridge valve for coolant circuit pump Applicant: Industrie Saleri Italo Spa, Italy This invention relates to a valve group for a pump that is part of a cooling circuit – in par-
ticular, for vehicles, such as motor vehicles or motorcycles. The cooling pump and the components from which it is composed, are the most important elements contained in a cooling circuit for thermal engines, especially in automotive applications. Therefore, great attention is paid to the correct design of such components and to continual improvement of their performance. According to the inventors, embodiments, typical of the prior art, are spoiled by the fact that they do not efficiently obstruct the passage of cooling liquid – specifically in the zones between the valve group itself and the pump. One of the main problems of this type of product is that of avoiding the leakage of cooling liquid between the valve group and pump. The purpose of this invention is to create a valve group that is particularly suitable for use in the cooling pump, involving a specific anti-leakage projection that minimises leakage of coolant between the valve group and pump. Patent number:Ê7"ÉÓä£{ÉänÎ{{£ Inventor: G. Tebaldini Publication date: 5 June 2014
Cover for preventing electrolyte leakage from a battery Applicant: Global Battery Co Ltd, Korea A cover has been designed to prevent an electrolyte from leaking from a battery. In particular, this invention relates to a cover for preventing electrolyte leakage. According to the patent, the upper and lower covers are coupled to each other so as to seal the case of the battery by forming a labyrinth structure in which the electrolyte flows in the vertical direction – thereby enhancing electrolyte leakage resistance. A gas-discharge hole and a fine hole are formed in the cover so as to smoothly discharge gas that is generated inside the battery. The position of the cover is aligned so as to prevent electrolyte leakage even when the battery is turned over or tilted. Patent number:Ê7"ÉÓä£{Éän{{ÎÇ Inventors: H.R. Kim, S.B. Park and K.H. Lee Publication date: 5 June 2014
Mechanical pipe coupling assembly without using adhesive or a bonding agent Applicant: Charlotte Pipe and Foundry Co, USA The subject of this patent is a mechanical coupling between a straight pipe-end and a socket fitting, which comprises a seal ring and a locking ring disposed within the interior of the socket.
Sealing Technology
13
Spherical band seal Applicant: Oiles Corp, Japan This invention relates to a spherical annular seal member that is designed to be used in a spherical pipe joint on a car exhaust pipe. The seal is used in an exhaust pipe coupling, and is provided with: a spherical band base, defined by a cylindrical inner surface, a partially convex spherical surface, and annular end-surfaces at the large-diameter and small-diameter ends of the partially convex spherical surface; and an outer layer, integrally formed on the partially convex spherical surface of the spherical band base. Patent number:Ê7"ÉÓä£{ÉänäÈ££ Inventors: K. Kurose, T. Shimura and O. Miyashita Publication date: 30 May 2014
System for sealing wires, tubes and conduits penetrating a wall member Applicant: National Oilwell Varco Lp, USA This patent describes sealing systems, but in particular a system for sealing at least one flexible longitudinal member, such as an insulated wire, a conductor, a conduit, a pipe, or a tube penetrating a wall member. In one embodiment, the system includes a sealing member that has at first set of apertures, a second set of apertures and inner and outer interface surfaces. The system also includes a clamping member, which also contains a first set of apertures and an interface surface. The set of apertures in the clamping member is configured to align with the first set of apertures in the sealing member. The first sets of apertures are configured to receive at least one flexible longitudinal member. The interface surface of the clamping member is configured to abut the inner interface surface of the sealing member. The system also includes at least one threaded blind bore in the interface surface of the clamping member, and at least one fastener, configured to draw the clamping member into engagement with the sealing member. Patent number\Ê7"ÉÓä£{Éän£ÇΣ Inventors: R.P. Munroe, L.E. Wells and A.W. Braman Publication date: 30 May 2014
March 2015
Inner seal collar with improved locking mechanism Applicant: Graf Patentverwertungs Gbr, Germany An inner seal collar that is inserted into pipes in order to seal leakage points (in the pipes) forms the subject of this patent. It consists of an expandable strip that is bent into the shape of a ring and which is preferably made of steel sheet. Parts of this strip at least partly overlap in the circumferential direction. Also incorporated is a locking device, which has at least two parallel rows of teeth, wherein a separate clamping pinion engages at least two of the rows of teeth. A characteristic of this design is the separate blocking pinion, which is paired with each of at least two clamping pinions. The blocking pinion pushes against the corresponding clamping pinion, via a respective spring element, and engages with it (clamping pinion). In addition, each of the blocking pinions also engages with the corresponding row of teeth. Patent number:Ê7"ÉÓä£{ÉäÇxx Inventors: J. Graf and J. Graf Publication date: 30 May 2014
Shaft sealing device for a hydroelectric power generator Applicant: National University Corp Kumamoto University, Japan Details are provided of a shaft seal. It is equipped with a sealing member that possesses low frictional resistance and high abrasion resistance, and creates an excellent liquid-tight seal. It is disposed around a shaft that is supported so as to enable rotation or reciprocation, but creates a liquid-tight seal (around the shaft). According to the patent, the sealing member is a porous material formed from a hydrophilic polymer resin in which the chains are cross-linked. The device described is also characterised in that the shaft creates a “bridge” between a liquid phase region and a gas phase region. The sealing member limits leakage of liquid from the liquid phase region to the gas phase region and is impregnated with an aqueous lubricating solution prepared by adding a water-soluble thickener. Patent number:Ê7"ÉÓä£{Éän{ÓxÇ Inventor: Y. Nakanishi Publication date: 5 June 2014
Cartridge valve for coolant circuit pump Applicant: Industrie Saleri Italo Spa, Italy This invention relates to a valve group for a pump that is part of a cooling circuit – in par-
ticular, for vehicles, such as motor vehicles or motorcycles. The cooling pump and the components from which it is composed, are the most important elements contained in a cooling circuit for thermal engines, especially in automotive applications. Therefore, great attention is paid to the correct design of such components and to continual improvement of their performance. According to the inventors, embodiments, typical of the prior art, are spoiled by the fact that they do not efficiently obstruct the passage of cooling liquid – specifically in the zones between the valve group itself and the pump. One of the main problems of this type of product is that of avoiding the leakage of cooling liquid between the valve group and pump. The purpose of this invention is to create a valve group that is particularly suitable for use in the cooling pump, involving a specific anti-leakage projection that minimises leakage of coolant between the valve group and pump. Patent number:Ê7"ÉÓä£{ÉänÎ{{£ Inventor: G. Tebaldini Publication date: 5 June 2014
Cover for preventing electrolyte leakage from a battery Applicant: Global Battery Co Ltd, Korea A cover has been designed to prevent an electrolyte from leaking from a battery. In particular, this invention relates to a cover for preventing electrolyte leakage. According to the patent, the upper and lower covers are coupled to each other so as to seal the case of the battery by forming a labyrinth structure in which the electrolyte flows in the vertical direction – thereby enhancing electrolyte leakage resistance. A gas-discharge hole and a fine hole are formed in the cover so as to smoothly discharge gas that is generated inside the battery. The position of the cover is aligned so as to prevent electrolyte leakage even when the battery is turned over or tilted. Patent number:Ê7"ÉÓä£{Éän{{ÎÇ Inventors: H.R. Kim, S.B. Park and K.H. Lee Publication date: 5 June 2014
Mechanical pipe coupling assembly without using adhesive or a bonding agent Applicant: Charlotte Pipe and Foundry Co, USA The subject of this patent is a mechanical coupling between a straight pipe-end and a socket fitting, which comprises a seal ring and a locking ring disposed within the interior of the socket.
Sealing Technology
13