Quotables
"What, sir, would you make a ship sail against the wind and currents by lighting a bonfire under her deck? I pray you, excuse me, I have not the time to listen to such nonsense."
Napoleon Bonaparte ; When told of the Robert Fulton steamboat
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7240668 | Fuel leak detection apparatus and method Apparatus and method for detecting a fuel leak from a component includes providing a fuel leak enclosure about the component being monitored. ... | 07/10/2007 |
| 7229077 | Ordered elastomeric composite material Ordered elastomeric composites comprise an ordered arrangement of a number of first elastomeric phases distributed uniformly within a continuous matrix second elastomeric phase. The second phase can be formed from an elastomeric material that is relatively harder th... | 06/12/2007 |
| 7217452 | Elastomer-bonded sheet material and process for its production The invention relates to an elastomer-bonded sheet material encompassing vulcanized elastomer content and content composed of at least one filler bonded therein, where the vulcanized elastomer content encompasses, based on the entire elastomer content, from about 25... | 05/15/2007 |
| 7216872 | Seal for use with pipe and flange assemblies The invention relates to a seal for use with a pipe and flange assembly. The seal is intended to prevent leakage during axial movement of the pipe relative to a flange. The invention comprises a central cylindrical elastomeric member located between two circular ela... | 05/15/2007 |
| 7168147 | Method for manufacturing a drilling tool with an elastomer seal having graded properties A method of forming a seal for a subterranean drilling tool employs irradiation. The seal is formed of a single homogeneous elastomeric material. The seal has an exterior surface with at least one portion that is in sliding engagement with part of a seal gland of th... | 01/30/2007 |
| 7021633 | Low friction fluid seal device with additive to rubber compound A fluid seal device for use in sealing an annular space between an internal surface of a cylinder and a member therein having an outer cylindrical surface and being formed at least in part from rubber. An oleamide additive is included in the rubber compound comprisi... | 04/04/2006 |
| 6941827 | Mounting apparatus and method for cylinder position sensor A method and apparatus for detecting the position of a rod member of a cylinder assembly are provided. The cylinder assembly may have a cylinder body with a cylinder chamber therein, a gland member disposed within the cylinder chamber, and a rod member movably arran... | 09/13/2005 |
| 6517080 | Seal material having anisotropic properties A material comprised of two different polymers so that the material exhibits anisotropic properties. The anisotropic properties exhibit hardness and wear resistance along with flexibility. The anisotropic material is made up of a hard segment polymer and ... | 02/11/2003 |
| 6485809 | Low stress to seal gasket A multilayer, unitary gasket including at least one inner layer of expanded PTFE disposed between a first substantially air impermeable outer layer and a second substantially air impermeable outer layer, and a substantially air impermeable region bridging... | 11/26/2002 |
| 6406031 | Shaft seal A seal for a rotary shaft extending from a container containing agitated abrasive particulates through a wall of the container. The seal includes a first polymeric member around the shaft and in engagement with the wall of the container with the shaft rot... | 06/18/2002 |
| 6357755 | Sealing elements for dry running piston compressors A sealing element for a dry running piston compressor, in particular for a dry running oxygen compressor, contains perfluoroalkoxy-copolymer.... | 03/19/2002 |
| 6270083 | Packing yarn made of graphite foil and plastic foil and method of manufacturing a packing yarn A packing yarn and a method of manufacturing a packing yarn utilize at least two bands that are at most 5 mm wide and are joined together by a yarn manufacturing method. The bands are formed of a laminate having at least one layer of flexible graphite foi... | 08/07/2001 |
| 6138585 | Clinker grinder seal in coal-burning utility electrical power generation plant A coal-burning utility electrical power generation plant includes a mill pulverizing coal and supplying same to a boiler for combustion. The boiler has a bottom ash hopper for receiving combustion products including clinkers, and a clinker grinder for gri... | 10/31/2000 |
| 6105596 | Sealing system A sealing assembly with a first molded graphite ring of generally triangular cross section, one side of which is in use perpendicular to the longitudinal axis of a rotatable and/or slidable shaft, the surface of which is to be sealed in an axial direction... | 08/22/2000 |
| 6062570 | Stem sealing system for broad temperature ranges A stem seal having first and second wiping members circumjacent a stem is disposed within a bore. A lubricant-bearing ring is disposed about the stem within the bore between the wiping members, under compression therefrom. Projections from the wiping memb... | 05/16/2000 |
| 6007070 | Pressure actuated packing assembly A pressure actuated packing assembly for use in sealing the annular area of fluid flow devices to provide and maintain an effective, long-term seal therein. The pressure actuated packing assembly is designed for use in chemically hostile environments, and... | 12/28/1999 |
| 5904354 | Mechanically energized element The inventive sealing assembly designed to be set by longitudinal compression is mechanically energized, and comprises an elastomeric sealing element and a flexible member in intimate contact with the sealing element, a flexible portion of the flexible me... | 05/18/1999 |
| 5845909 | Stuffing box with improved packing rings and method A stuffing box 10, 60 designed for sealing engagement with a rod member R includes a plurality of stacked packing rings 32, 110, 150, 210, and a gland member 42, 64 axially moveable relative to the stuffing box body 12, 62 for varying the compressive forc... | 12/08/1998 |
| 5829339 | Crimped sealed adapter bushing assembly for a double diaphragm spring brake actuator A sealed bushing assembly adapted to permit a push rod to pass through an adapter isolating a pressurized chamber, formed by attaching a sleeve to said adapter, inserting a bushing, and crimping the end of said sleeve opposite said adapter to restrain sai... | 11/03/1998 |
| 5788216 | Valve with perfluoroelastomer packing Valves having a stem packing of alternating layers of perfluoroelastomer and high temperature polymer provide outstanding sealing performance against corrosive fluids and high temperatures.... | 08/04/1998 |
| 5687974 | Packing material having expanded graphite dispersed throughout A minimum leakage packing system is provided for sealing pump shafts and the like. The packing is manufactured from twisted, exfoliated extruded, pultruded or slit graphite material that is braided, twisted, laid up or otherwise combined to form mechanica... | 11/18/1997 |
| 5593166 | Low friction packing A two-part, low friction, live loaded packing system for fire safety and low fugitive emission sealing (less than 500 ppm) of a valve stem at operating temperatures up to 450° F. (232° C.). One lower packing ring set around the valve stem has PTFE washe... | 01/14/1997 |
| 5577737 | Method and apparatus for establishing and maintaining a fluid seal around a polishing rod The invention is a sealing apparatus and method of providing a seal for polished rods in oil and gas well applications. The sealing apparatus has a fluid responsive gland which forms a seal between the inner surface of a unitized housing body and a polish... | 11/26/1996 |
| 5549276 | Valve with perfluoroelastomer packing Valves having a stem packing of alternating layers of perfluoroelastomer and high temperature polymer provide outstanding sealing performance against corrosive fluids and high temperatures.... | 08/27/1996 |
| 5542681 | Graphite packing A fluid valve graphite packing assembly with graphite packing rings and thin PTFE disc rings surrounding an operating valve member. Softer graphite packing rings on the interior are bounded by progressively harder graphite packing rings. A PTFE disc ring ... | 08/06/1996 |
| 5538256 | Method for producing a packing arrangement for a hydraulically operated apparatus and a packing arrangement The invention relates to a new method for producing a packing arrangement for a hydraulically operated apparatus. The method comprises the following steps: (a) producing a preshaped plastic piece of seal material; (b) compressing said preshaped piece at r... | 07/23/1996 |
| 5513556 | Packing gland construction An improved packing gland construction for a fluid cylinder that includes an angular elongated resilient sealing member disposed in contact with the piston rod of the cylinder. An end of the sealing member facing the interior of the cylinder is provided w... | 05/07/1996 |
| 5507502 | Packing life extender ring A packing life extender ring assembly which includes a first annular ring and a second annular ring concentrically encircling the first ring, both rings having tapered surfaces matingly engaging one another. The first and second rings are both made of a c... | 04/16/1996 |
| 5493951 | Lubrication and seal ring assembly for pump A fluid end including a cylinder has a bore extending therethrough. A plunger is reciprocally disposed in the bore. A packing element is disposed in the bore to seal the annular space between the plunger and bore and includes a lubrication ring formed of ... | 02/27/1996 |
| 5452904 | Stuffing-box packing A stuffing-box packing for establishing a seal between a housing bore and a rotatable shaft which has at least one packing ring comprising expanded graphite and a pair of disc-shaped stripper elements which are comprised of a suitable plastic or metal. To... | 09/26/1995 |
| 5421547 | Inline valve An inline valve includes a glass body having an upwardly open bore with a tapered seating surface, and colinear inlet and outlet ports having passages intersecting the seating surface. Fluid flow between the ports is regulated by a valve member whose stem... | 06/06/1995 |
| 5306021 | V-shaped seal with anti-extrusion section A dealing device having a body section and an anti-extrusion section is disclosed, the body section being disposed on top of the anti-extrusion section. The body section includes sealing surfaces for enclosures in which the sealing device is located. The ... | 04/26/1994 |
| 5299812 | Graphite packing A fluid valve graphite packing assembly with graphite packing rings and thin PTFE disc rings surrounding an operating valve member. Softer graphite packing rings on the interior are bounded by progressively harder graphite packing rings. A PTFE disc ring ... | 04/05/1994 |
| 5297805 | Sealing ring A sealing ring for a seal assembly used in oil field equipment including an elastomeric body and a reinforced face. The reinforced face is of molded polytetrafluoroethylene and is integral with the elastomeric body to provide improved pressure capability ... | 03/29/1994 |
| 5234194 | Seal for a shaft A seal for a shaft in a structural body. The seal is configured to surround the shaft within said structural body. The seal has a flange making a gasket seal with the structural body. The seal has at least one portion distorted and stretched into a tapere... | 08/10/1993 |
| 5230498 | Live load packing system An improved live load packing system for sealing an operating valve member in a fluid valve A packing follower includes a base and a guide sleeve adapted for slidable engagement on the operating valve member. A series of Belleville disk springs slidably e... | 07/27/1993 |
| 5188376 | Gland packing and method of producing same The packing according to the present invention is composed of a string-like body formed of an elongated tape-like packing material having at least one layer is repeatedly folded in direction at a right angle to the longitudinal direction thereof in a zigz... | 02/23/1993 |
| 5160773 | Encapsulated felt A sealing material of polytetrafluoroethylene felt is encapsulated by a polytetrafluoroethylene sheet coated with a thermoplastic fluoropolymer.... | 11/03/1992 |
| 5131666 | Zero clearance anti-extrusion rings for containment of PTFE packing A packing containment assembly for sealing an operating member such as a shaft or stem in a fluid control valve, particularly where PTFE packing is used. A pair of zero clearance anti-extrusion rings of PEEK material are mounted in the shaft with the PTFE... | 07/21/1992 |
| 5129625 | Live load packing system An improved live load packing system for sealing an operating valve member in a fluid valve. A packing follower includes a base and a guide sleeve with a non-metallic inner liner adapted for slidable engagement on the operating valve member. A series of B... | 07/14/1992 |
