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Methods for bonding or sealing glass pieces used in photovoltaic cell modules
PATENTS move with respect to one another. It is secured to one of these components and is pressed elastically against a run-up face of the other component, and in the case of component movement, runs along the latter. A coating – comprising a metal that is electropositive with respect to iron – is applied to a region of at least one sealing run-up face. Patent number:Ê7"ÉÓä£ÓÉäÇÓÓÇä Inventor: H. Frank Publication date: 7 June 2012
Methods for bonding or sealing glass pieces used in photovoltaic cell modules Applicant: JLN Solar Inc, USA This patent provides details of methods for bonding or sealing pieces of glass used in the construction of photovoltaic cell modules. Compared with existing methods, the suitably engineered (and applied) solder described in this patent bonds or seals the glass pieces – increasing longevity and decreasing susceptibility to degradation from the elements, such as moisture and prolonged exposure to sunlight. Patent number:Ê7"ÉÓä£ÓÉäÇxÎÈÈ Inventors:Ê°Ê ÃÌ]Ê °Ê+> and K. Lu Publication date: 7 June 2012
Contamination-resistant connecting system Applicant: Baker Hughes Inc, USA It can be challenging to make a reliable connection between conduits – such as those used for optical fibres, electrical wiring and hydraulic lines – in a contaminated environment, for example, an earth formation borehole in the drilling and completion industries. Contamination between mating surfaces of the conduits after connections are made can negatively affect any signals that are conveyed between the connected conduits. This patent provides details of contamination-resistant connecting system or connectors. Patent number:Ê7"ÉÓä£ÓÉäÇxäÓ£ Inventors: C.W. Stoesz and L.E. Mendez Publication date: 7 June 2012
Ring seal retainer assembly Applicant: Microflex Technologies Llc, USA This patent describes a retainer for a gasket that is used when piping in a modular gas delivery system is connected to gas-flow controlling components. The design described protects the sealing surface of the gasket from scratches before assembly by suspending it at least 14
Sealing Technology
0.003 inches inside the retainer, regardless of orientation. In addition, a slit in the circumference of the retainer enables the it to flex open for insertion of the seal gasket, and to be compressed to a smaller circumference, for a tight fit inside the sealing counter-bore. A chamfer, located on the inside diameter of the retainer, aids insertion of the seal (into the retainer). In the retainer’s inside diameter, a groove engages a protruding portion of the seal. This groove has a specific depth so that with complete compression of the retainer – where the circumferential gap is completely closed – the protruding edge of the seal still has some clearance. This clearance acts as a stop to prevent the retainer from being overly compressed. Patent number:Ê7"ÉÓä£ÓÉäÇnxnÎ Inventor: G.M. Doyle Publication date: 7 June 2012
Sealing device for use in farm and construction machinery Applicant: NOK Corp, Japan The purpose of this invention is to create a sealing device for use in farm and construction machinery. Designed for use in a limited space, it prevents the ingress of muddy water or dust when used on shaft seal parts that are usually exposed to severe external environments for a long period. This patent describes a device for sealing the gap between a housing and a rotating axis that extends through the housing. It is composed of a sealing member, which is held on the housing side, and a sleeve member, which is held on the rotating axis side. It is composed of a metallic material. A protection ring is held on the sealing member side. A narrow gap is formed between a guard part of the sleeve member and the protection ring. Patent number:Ê7"ÉÓä£ÓÉäÇÇ{äÎ Inventor: N. Nishimura Publication date: 14 June 2012
Inventors: K. Andersen, S.S. Lyng and J. Haugen Publication date: 14 June 2012
Dual-seal tubing hanger Applicant: Petrohawk Properties Lp, USA This invention relates to the field of well-bore equipment, but more specifically to seals for tubing hangers. Conventional sealing systems include one seal, but this approach has a major drawback in that if this single seal fails, the sealing action of the tubing hanger is lost. The accompanying figure illustrates an embodiment of a dual-seal tubing hanger (5). The diagram shows an upper body seal (25), a lower body seal (30) and the hanger body (40). The lower body seal (30) is weight energised, while the upper body seal (25) is energised by the upper body pin (45). A seal may be maintained without a frac valve disposed on top of dual-seal tubing hanger. In some embodiments the upper extended portion (10) is composed of the same material as hanger body (40). In alternative embodiments, the upper extended portion and hanger body are made from different materials. The upper extended portion also may have any configuration that enables it to be attached to equipment, such as a well-head Christmas tree adapter. Patent number:Ê7"ÉÓä£ÓÉäÇn{Σ Inventor: J.L. Kennedy Publication date: 14 June 2012
Seal elements for packer assemblies Applicant: Halliburton Energy Services Inc, USA This disclosure relates generally to equipment used, and operations performed, in a subterranean well. In particular, it provides for extending lines through, and preventing extrusion of, packer seal elements. Improved packer assembly and associated methods are described. In one example, lines are extended longitudinally through a seal element and an end-ring, while in another, extrusion of the seal element is prevented through the use of radially extendable leaves on the end-ring. Patent number:Ê7"ÉÓä£ÓÉäÇn{ÈnÊ
Patent WO/2012/078431 provides details of an improved tubing hanger which, unlike conventional sealing systems used in conjunction with well-bore equipment, has a dual-seal structure.
November 2012
Methods for bonding or sealing glass pieces used in photovoltaic cell modules Applicant: JLN Solar Inc, USA This patent provides details of methods for bonding or sealing pieces of glass used in the construction of photovoltaic cell modules. Compared with existing methods, the suitably engineered (and applied) solder described in this patent bonds or seals the glass pieces – increasing longevity and decreasing susceptibility to degradation from the elements, such as moisture and prolonged exposure to sunlight. Patent number:Ê7"ÉÓä£ÓÉäÇxÎÈÈ Inventors:Ê°Ê ÃÌ]Ê °Ê+> and K. Lu Publication date: 7 June 2012
Contamination-resistant connecting system Applicant: Baker Hughes Inc, USA It can be challenging to make a reliable connection between conduits – such as those used for optical fibres, electrical wiring and hydraulic lines – in a contaminated environment, for example, an earth formation borehole in the drilling and completion industries. Contamination between mating surfaces of the conduits after connections are made can negatively affect any signals that are conveyed between the connected conduits. This patent provides details of contamination-resistant connecting system or connectors. Patent number:Ê7"ÉÓä£ÓÉäÇxäÓ£ Inventors: C.W. Stoesz and L.E. Mendez Publication date: 7 June 2012
Ring seal retainer assembly Applicant: Microflex Technologies Llc, USA This patent describes a retainer for a gasket that is used when piping in a modular gas delivery system is connected to gas-flow controlling components. The design described protects the sealing surface of the gasket from scratches before assembly by suspending it at least 14
Sealing Technology
0.003 inches inside the retainer, regardless of orientation. In addition, a slit in the circumference of the retainer enables the it to flex open for insertion of the seal gasket, and to be compressed to a smaller circumference, for a tight fit inside the sealing counter-bore. A chamfer, located on the inside diameter of the retainer, aids insertion of the seal (into the retainer). In the retainer’s inside diameter, a groove engages a protruding portion of the seal. This groove has a specific depth so that with complete compression of the retainer – where the circumferential gap is completely closed – the protruding edge of the seal still has some clearance. This clearance acts as a stop to prevent the retainer from being overly compressed. Patent number:Ê7"ÉÓä£ÓÉäÇnxnÎ Inventor: G.M. Doyle Publication date: 7 June 2012
Sealing device for use in farm and construction machinery Applicant: NOK Corp, Japan The purpose of this invention is to create a sealing device for use in farm and construction machinery. Designed for use in a limited space, it prevents the ingress of muddy water or dust when used on shaft seal parts that are usually exposed to severe external environments for a long period. This patent describes a device for sealing the gap between a housing and a rotating axis that extends through the housing. It is composed of a sealing member, which is held on the housing side, and a sleeve member, which is held on the rotating axis side. It is composed of a metallic material. A protection ring is held on the sealing member side. A narrow gap is formed between a guard part of the sleeve member and the protection ring. Patent number:Ê7"ÉÓä£ÓÉäÇÇ{äÎ Inventor: N. Nishimura Publication date: 14 June 2012
Inventors: K. Andersen, S.S. Lyng and J. Haugen Publication date: 14 June 2012
Dual-seal tubing hanger Applicant: Petrohawk Properties Lp, USA This invention relates to the field of well-bore equipment, but more specifically to seals for tubing hangers. Conventional sealing systems include one seal, but this approach has a major drawback in that if this single seal fails, the sealing action of the tubing hanger is lost. The accompanying figure illustrates an embodiment of a dual-seal tubing hanger (5). The diagram shows an upper body seal (25), a lower body seal (30) and the hanger body (40). The lower body seal (30) is weight energised, while the upper body seal (25) is energised by the upper body pin (45). A seal may be maintained without a frac valve disposed on top of dual-seal tubing hanger. In some embodiments the upper extended portion (10) is composed of the same material as hanger body (40). In alternative embodiments, the upper extended portion and hanger body are made from different materials. The upper extended portion also may have any configuration that enables it to be attached to equipment, such as a well-head Christmas tree adapter. Patent number:Ê7"ÉÓä£ÓÉäÇn{Σ Inventor: J.L. Kennedy Publication date: 14 June 2012
Seal elements for packer assemblies Applicant: Halliburton Energy Services Inc, USA This disclosure relates generally to equipment used, and operations performed, in a subterranean well. In particular, it provides for extending lines through, and preventing extrusion of, packer seal elements. Improved packer assembly and associated methods are described. In one example, lines are extended longitudinally through a seal element and an end-ring, while in another, extrusion of the seal element is prevented through the use of radially extendable leaves on the end-ring. Patent number:Ê7"ÉÓä£ÓÉäÇn{ÈnÊ
Patent WO/2012/078431 provides details of an improved tubing hanger which, unlike conventional sealing systems used in conjunction with well-bore equipment, has a dual-seal structure.
November 2012