- Email: [email protected]
Battery gasket
PATENTS overlapping bands and a channel on the underside of a band that includes a seal. Anchor points are included to ensure that the two segments of the band slide correctly. It is also intended for use in applications where multiple pipes are in close proximity, such as in diesel particulate filters used on trucks. Patent number: WO/2011/091135 Inventors: B.T. Geese and B.T. Ignaczak Publication date: 28 July 2011
Production method for fuel-cell separator gasket Applicant: Panasonic Electric Works Co Ltd, Japan A production method is described for a fuel-cell separator. It is used to impart high hydrophilic properties to a surface, which are retained over a long period and which enable the fuel cell to operate efficiently. A moulding composition is formed that consists of a thermosetting resin, containing an epoxy resin; a curing agent, containing a phenol compound; and graphite particles. The equivalent ratio of the epoxy resin to the phenol compound falls within 0.8–1.2. Surface treatment, which includes a wet, blast process and a subsequent remote-type atmospheric-pressure plasma process, is carried out on the surface of the resulting moulded article. Patent number: WO/2011/089758 Inventors: H. Yamamoto and T. Ito Publication date: 28 July 2011
Piston ring Applicant: Nippon Piston Ring Co Ltd, Japan This patent details a process that is applied to a piston ring in a diesel engine. The aim is to sufficiently inhibit adhesive wear. The ring groove in the piston is formed from steel or cast iron. The load length ratio Rmr2 (in accordance with JIS B 0601: 2001) of the top surface and bottom surface of the piston ring satisfies each of the following conditions: Rmr2 (0.5%, 0.3 μm) t 20% and Rmr2 (0.5%, 0.4 μm) t 40%. The surface-texture profile
February 2012
is discussed in detail and a keystone-type piston ring is illustrated. Patent number: WO/2011/093464 Inventors: M. Ito, N. Akimoto, I. Hiraishi, M. Kajiwara and A. Chiba Publication date: 4 August 2011
‘‘Wax-less’’ toilet gasket Applicant: Sani-Seal Llc, USA A ‘‘wax-less’’ toilet gasket is provided that is formed from an open-cell foam which has a hydrophobic skin, layer, coating or covering. To this end, the gasket may be formed from a self-skinning polyurethane, a polyurethane with an in-mould coating, or a polyurethane that contains a waterproof agent. Patent number: WO/2011/094468 Inventors: J.D. Miller and R.M. Grimmett Publication date: 4 August 2011
Head gasket Applicant: Donga Manufacturing Corp, Korea This invention relates to a bead-stopper integrated head-gasket and the associated method of manufacturing it. According to the patent, a bead plate is formed with a shim plate stopper by carrying out laserwelding along the edge of the plate. This is done in such a way that the plate’s surface contacts one surface of the bead plate to which it will be integrated, so that the shim stopper plate does not need any additional fixture-type protrusion. The coating layers of the plate surface may be reduced from four to three steps. Patent number: WO/2011/093546 Inventors: K.S. Yeom and J.S. Lee Publication date: 4 August 2011
are on the end of one side of the piston ring, and a convex semi-step and a semistep, which are on the end of the other side of the piston ring. The patent claims that gas inside the cylinder will no longer leak from the joint of the two ends of the notch of the piston ring during compression and working strokes of the internal combustion engine. ‘‘Airtightness’’, the service life of the piston ring and the heat utilisation rate are improved. Patent number: WO/2011/094906 Publication date: 11 August 2011
Battery gasket Applicant: FDK Energy Co Ltd, Japan Details are provided of a gasket for use in a cylindrical battery. It is designed to allow for sufficient internal volume within the battery, while not diminishing its ability to absorb radial stress when sealing the battery. The stress-damping component (37) has a first bent part (37a) and a second bent part (37b). These are bent at acute angles. The component is located closer to the centre of the positive electrode canister (11) than a positive electrode mixture (12) when installed on the positive electrode canister. A number of alternative designs are also illustrated. Patent number: WO/2011/102557 Inventors: T. Yamazaki, S. Murakami and H. Tsuzuki Publication date: 28 August 2011
Abrasion-resistant piston ring Applicants/Inventors: X. Li and X. Li – China A stepped lap joint piston ring forms the subject of this patent. The design described includes a concave semi-step, a concave semistep upper side wall, and an upper closure side wall and lower closure side wall, which
Patent WO/2011/102557 provides details of a gasket for use in a cylindrical battery. This figure shows an example of a cell battery – which uses this gasket – with stress-relieving convolutions.
Sealing Technology
15
Production method for fuel-cell separator gasket Applicant: Panasonic Electric Works Co Ltd, Japan A production method is described for a fuel-cell separator. It is used to impart high hydrophilic properties to a surface, which are retained over a long period and which enable the fuel cell to operate efficiently. A moulding composition is formed that consists of a thermosetting resin, containing an epoxy resin; a curing agent, containing a phenol compound; and graphite particles. The equivalent ratio of the epoxy resin to the phenol compound falls within 0.8–1.2. Surface treatment, which includes a wet, blast process and a subsequent remote-type atmospheric-pressure plasma process, is carried out on the surface of the resulting moulded article. Patent number: WO/2011/089758 Inventors: H. Yamamoto and T. Ito Publication date: 28 July 2011
Piston ring Applicant: Nippon Piston Ring Co Ltd, Japan This patent details a process that is applied to a piston ring in a diesel engine. The aim is to sufficiently inhibit adhesive wear. The ring groove in the piston is formed from steel or cast iron. The load length ratio Rmr2 (in accordance with JIS B 0601: 2001) of the top surface and bottom surface of the piston ring satisfies each of the following conditions: Rmr2 (0.5%, 0.3 μm) t 20% and Rmr2 (0.5%, 0.4 μm) t 40%. The surface-texture profile
February 2012
is discussed in detail and a keystone-type piston ring is illustrated. Patent number: WO/2011/093464 Inventors: M. Ito, N. Akimoto, I. Hiraishi, M. Kajiwara and A. Chiba Publication date: 4 August 2011
‘‘Wax-less’’ toilet gasket Applicant: Sani-Seal Llc, USA A ‘‘wax-less’’ toilet gasket is provided that is formed from an open-cell foam which has a hydrophobic skin, layer, coating or covering. To this end, the gasket may be formed from a self-skinning polyurethane, a polyurethane with an in-mould coating, or a polyurethane that contains a waterproof agent. Patent number: WO/2011/094468 Inventors: J.D. Miller and R.M. Grimmett Publication date: 4 August 2011
Head gasket Applicant: Donga Manufacturing Corp, Korea This invention relates to a bead-stopper integrated head-gasket and the associated method of manufacturing it. According to the patent, a bead plate is formed with a shim plate stopper by carrying out laserwelding along the edge of the plate. This is done in such a way that the plate’s surface contacts one surface of the bead plate to which it will be integrated, so that the shim stopper plate does not need any additional fixture-type protrusion. The coating layers of the plate surface may be reduced from four to three steps. Patent number: WO/2011/093546 Inventors: K.S. Yeom and J.S. Lee Publication date: 4 August 2011
are on the end of one side of the piston ring, and a convex semi-step and a semistep, which are on the end of the other side of the piston ring. The patent claims that gas inside the cylinder will no longer leak from the joint of the two ends of the notch of the piston ring during compression and working strokes of the internal combustion engine. ‘‘Airtightness’’, the service life of the piston ring and the heat utilisation rate are improved. Patent number: WO/2011/094906 Publication date: 11 August 2011
Battery gasket Applicant: FDK Energy Co Ltd, Japan Details are provided of a gasket for use in a cylindrical battery. It is designed to allow for sufficient internal volume within the battery, while not diminishing its ability to absorb radial stress when sealing the battery. The stress-damping component (37) has a first bent part (37a) and a second bent part (37b). These are bent at acute angles. The component is located closer to the centre of the positive electrode canister (11) than a positive electrode mixture (12) when installed on the positive electrode canister. A number of alternative designs are also illustrated. Patent number: WO/2011/102557 Inventors: T. Yamazaki, S. Murakami and H. Tsuzuki Publication date: 28 August 2011
Abrasion-resistant piston ring Applicants/Inventors: X. Li and X. Li – China A stepped lap joint piston ring forms the subject of this patent. The design described includes a concave semi-step, a concave semistep upper side wall, and an upper closure side wall and lower closure side wall, which
Patent WO/2011/102557 provides details of a gasket for use in a cylindrical battery. This figure shows an example of a cell battery – which uses this gasket – with stress-relieving convolutions.
Sealing Technology
15