| Patents for F16J 9 - Piston-rings, seats therefor; Ring sealings of similar construction in general (4,592) |
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| 11/18/2009 | CN201347914Y Hydraulic cylinder with floating clearance rod seal structure |
| 11/18/2009 | CN201347813Y Strengthened type oil ring structure |
| 11/18/2009 | CN101581365A Internal compression-type sealing ring |
| 11/18/2009 | CN101581259A Method for establishing piston ring mechanism for sealing single-ring piston engine |
| 11/18/2009 | CN100561021C Combination oil ring |
| 11/12/2009 | US20090278320 Piston ring with chromium nitride coating for internal combustion engines |
| 11/12/2009 | DE10252795B4 Kombinierter Stahlölabstreifring Combined Stahlölabstreifring |
| 11/11/2009 | CN201344071Y Elastic force balanced type wear-resistant piston ring |
| 11/11/2009 | CN101576161A Steel ladle long nozzle sealing ring |
| 11/11/2009 | CN101576019A Engine piston ring |
| 11/11/2009 | CN101576018A Sealing device of engine cylinder |
| 11/05/2009 | US20090273142 Combined oil ring |
| 11/04/2009 | EP2113690A1 Combined oil ring |
| 11/03/2009 | CA2436938C High and low temperature gas actuated cylinder |
| 10/29/2009 | DE112007002854T5 Kolbenring Piston ring |
| 10/28/2009 | CN101566540A Hermetical structure of novel rock test piece |
| 10/27/2009 | US7607901 Wear rings for downhole pump |
| 10/22/2009 | WO2009065205A3 Piston packing |
| 10/22/2009 | DE102008016864B3 Kolbenring Piston ring |
| 10/15/2009 | DE102008017583A1 Piston ring for internal combustion engine e.g. petrol engine, has wear-protection layer consisting of material that possesses reduced specific elasticity modulus, where elasticity modulus is calculated using specific equation |
| 10/14/2009 | CN100549471C Piston ring and method for producing the same |
| 10/13/2009 | US7600761 Sealing collar |
| 10/08/2009 | WO2009121719A2 Piston ring |
| 10/08/2009 | WO2009121443A1 Structured chrome solid particle layer and method for the production thereof |
| 10/08/2009 | US20090250880 Oil-control ring for an internal combustion engine |
| 10/08/2009 | DE102008017035A1 Vorrichtung zum Abdichten eines Hydraulikkolbens An apparatus for sealing a hydraulic piston |
| 10/07/2009 | CN101551012A A carbonaceous silicon carbide sealed ring and preparation method thereof |
| 10/01/2009 | WO2009119388A1 Piston ring material for internal combustion engine |
| 10/01/2009 | US20090243225 Wire material for coil expander and coil expander |
| 10/01/2009 | US20090243224 Resin seal ring and manufacturing method |
| 09/24/2009 | DE102008010908A1 Kolbendichtelement und Verzögerungsvorrichtung mit Kolbendichtelement Piston sealing element and deceleration device with piston sealing element |
| 09/23/2009 | CN201314376Y 活塞环 Piston Ring |
| 09/23/2009 | CN101542168A Piston ring |
| 09/16/2009 | EP2101090A2 Piston ring |
| 09/16/2009 | CN201310621Y Double thin special-shaped piston ring |
| 09/16/2009 | CN101531331A Novel hydraulic lifting jack |
| 09/10/2009 | US20090226304 Adjusting shaft arrangement of a turbocharger |
| 09/03/2009 | US20090217891 Reciprocating piston machine |
| 09/03/2009 | DE102008004029B3 Method for manufacturing piston ring, involves cutting laminated composite material to produce inner peripheral surface, outer peripheral surface, upper flank surface and lower flank surface |
| 09/02/2009 | EP2094998A1 Piston ring for internal combustion engines |
| 09/02/2009 | CN201301954Y Aluminum coagulation resistant piston ring |
| 09/02/2009 | CN201301953Y Sprayed molybdenum piston ring |
| 09/02/2009 | CN100535425C Oil ring for piston structure and manufacturing method thereof |
| 08/27/2009 | WO2009104031A2 Split sealing ring for pistons |
| 08/27/2009 | DE102008010242A1 High pressure generator for use in e.g. fuel injection system in diesel engine, has piston interfused by cross hole in transverse direction, where hole opens into groove at end turned towards chamber and is connected to piston front surface |
| 08/26/2009 | EP1963721B1 Piston ring for internal combustion engines |
| 08/26/2009 | EP1776487B1 High-strength, wear-resistant, corrosion-resistant cast iron material |
| 08/26/2009 | CN101514750A Nano-carbon fiber complex silicon carbide ceramics ring and preparation method thereof |
| 08/20/2009 | DE102008014945B3 Verschleissfestes Bauteil Abrasion component |
| 08/20/2009 | DE102008014800B3 Verfahren und Vorrichtung zur Herstellung eines dispersionsgehärteten Gegenstandes, der Carbid-Nanopartikel enthält Includes method and apparatus for producing a dispersion-hardened article, the carbide nanoparticles |
| 08/20/2009 | DE102008008983A1 Bilateral gas tight piston ring for expansion pistons or compression pistons of four-cycle engine, has ring segment, in which opposite segment ends are provided, such that end is formed as sliding bracket and other end as T-profile |
| 08/19/2009 | EP2089644A2 Piston ring for internal combustion engines |
| 08/19/2009 | EP2089643A2 Piston ring for internal combustion engines |
| 08/13/2009 | WO2009097667A1 A piston ring, an expander element and an internal combustion engine |
| 08/11/2009 | US7572344 Rectangular ring is formed and subsequently nitrided on all sides; ring consists of steel strip having rectangular cross-section as base material; ring is subsequently brought into final shape and geometry by means of machining of surfaces and exposed base material |
| 08/05/2009 | CN201284828Y Piston ring used in push slab cylinder of environmental sanitation vehicle |
| 08/05/2009 | CN101498256A Chromium based diamond composite chrome plating coating piston ring and method of processing the same |
| 08/05/2009 | CN101498255A Side rapid chrome plating piston ring and processing method |
| 07/30/2009 | WO2009092300A1 Multi-seal n-type sealing arrangement |
| 07/29/2009 | CN201281125Y Built-in piston ring of air bubble |
| 07/29/2009 | CN100520125C Energized piston seal ring |
| 07/22/2009 | CN201277322Y 活塞环 Piston Ring |
| 07/22/2009 | CN101490450A Mechanical seal assembly |
| 07/21/2009 | US7563079 Bore and shaft assembly |
| 07/16/2009 | WO2009088741A1 Lateral side protection of a piston ring with a thermally sprayed coating |
| 07/16/2009 | US20090179386 Gastight piston ring arrangement |
| 07/15/2009 | EP2078887A1 Gas-proof piston ring assembly |
| 07/14/2009 | US7559555 Resin seal ring and manufacturing method |
| 07/09/2009 | US20090174150 Lateral side protection of a piston ring with a thermally sprayed coating |
| 07/09/2009 | US20090173309 Piston For an Internal Combustion Engine Having Two Ring Grooves Wherein One Ring Groove Has A Ring Carrier |
| 07/09/2009 | US20090173224 Upper part of a composite piston |
| 07/08/2009 | CN100510483C Oil ring for internal combustion engine |
| 07/08/2009 | CN100510368C Wire material for coil expander and coil expander |
| 07/01/2009 | CN201265648Y 气体氮化活塞环 Gas nitriding piston ring |
| 06/25/2009 | WO2009033115A3 High efficiency piston ring |
| 06/25/2009 | DE102007060091A1 Oil scraper ring for use in combustion chamber of engine, has profile running conically at angle and inserted into outer periphery surface of bearing surface bars for forming oil-space provided sharp stripping edge |
| 06/24/2009 | CN201262227Y Novel piston guide ring |
| 06/24/2009 | CN100504122C Oil scraper ring groove arrangement for pistons of internal combustion engines |
| 06/18/2009 | DE102007059205A1 Oil control ring has slots, which are provided in area of outer peripheral surface of base body based on respective front edge of impact opening for holding or guiding end areas of sealing element |
| 06/17/2009 | EP2071215A1 Seal installation for valve |
| 06/17/2009 | CN101460769A Piston e.g. for internal combustion engine with two annular groves, has ring, box with several piston ring grooves on upper part and under part |
| 06/17/2009 | CN100501199C Side rail for reduction of oil consumption and combined oil control ring incorporated with the side rails |
| 06/16/2009 | US7547201 Compact simplified compressor apparatus |
| 06/11/2009 | US20090145296 Angled slot foam dispenser |
| 06/10/2009 | DE102007059206B3 Oil scraper ring for internal combustion engine, has closed sealing ring cooperating with nose-shaped attachment piece at side of opening, where points of attachment piece penetrate and are engaged into opening |
| 06/10/2009 | CN101451614A O shaped ring and production mould thereof |
| 06/04/2009 | WO2009069762A1 Steel products for piston rings and piston rings |
| 06/04/2009 | WO2009069703A1 Combination structure of piston ring and cylinder liner of internal combustion engine |
| 06/04/2009 | WO2009068125A1 Functionally optimized design of the piston-ring field region in steel pistons |
| 06/04/2009 | DE102008017270B3 Strukturierte Chrom-Feststoffpartikel-Schicht und Verfahren zu deren Herstellung sowie beschichtetes Maschinenelement Structured chrome solid particle layer and method for their preparation and coated machine element |
| 06/04/2009 | DE102007057959A1 Piston ring i.e. oil scraper ring, for use in internal combustion engine, has bending provided in area of each joint end and running transverse to bar, where passage opening is attached to bending |
| 06/04/2009 | DE102007057958A1 Piston ring e.g. oil scarper piston ring, producing method for combustion engine, involves conically forming lateral surfaces of lobe shaped sections during punching of metal steel tape in cross section |
| 06/04/2009 | DE102007057956A1 Piston ring i.e. oil scraper piston ring, manufacturing method for internal combustion engine, involves forming partially bent upward sections by punching flat metal spring band, where lateral surface of each section is formed in bend form |
| 06/04/2009 | DE10134293B4 Gekühlter Ringträger für einen Kolben Cooled ring carrier for a piston |
| 06/03/2009 | CN201250904Y V-shaped canvas filler grommet |
| 06/03/2009 | CN201250903Y Sealing piston ring |
| 05/28/2009 | DE102007056651A1 Ring seal for sealing piston of e.g. hydraulic brake system, has circulating bulge provided at outer circumference of sealing back of seal base body, and resting against cylinder-inner wall in installation position |
| 05/27/2009 | EP1904768B1 Upper sealing segment |
| 05/27/2009 | CN201246466Y Elliptical seal ring |
| 05/27/2009 | CN201246228Y Seal piston gas ring |