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| Number | Title | Issue Date |
| 7434849 | Pipe joint for refrigeration cycle The front end portion of a fitting projection from the portion on which a backup ring is mounted to the front end, has a diameter smaller than the inner diameter of the backup ring. The backup ring is endless in the circumferential direction thereof. The backup ring... | 10/14/2008 |
| 7419189 | Hydraulic fitting A high pressure hydraulic fitting (300) includes a body (302) having a central passage (322), a channel (304), a threaded section (314), and an extension section (310), wherein the threaded section (314) is disposed b... | 09/02/2008 |
| 6811189 | Corrosion seal for threaded connections The threaded connection between the pin and the box ends of two pipes is sealed externally and internally to protect the threads in the connection from exposure to corrosive fluids. Seals are provided at each axial end of the threads. The external seals may be forme... | 11/02/2004 |
| 6810865 | Exhaust gas recycle (EGR) assembly An exhaust gas recycle (EGR) isolation flange that includes an annular body that defines a central aperture therethrough and a plurality of axially extending bosses that extend from the body is disclosed. Additionally, a method for coupling an exhaust gas recycle fl... | 11/02/2004 |
| 6778792 | Low pressure air duct seal assembly A low pressure air duct seal assembly for an electrophotographic reproduction machine is disclosed, which has a pair of air duct pieces. One of the air duct pieces has an end portion, an outer surface, and a circumferential groove formed on the outer surface and dis... | 08/17/2004 |
| 6688653 | Fitting assembly for fluid and vapor connection A fitting assembly for fluid and vapor connection comprising a first tube, a second tube and a thin strip of polymeric material. A male member is formed at the end of the first tube. A hollow female body is formed at end of the second tube. The male membe... | 02/10/2004 |
| 6540264 | Quick connector for piping In a quick connector for piping 10 for detachably connecting a male member 12 to a female member 11, an O-ring 15 is interposed between the female member 11 and the male member 12 so as to form a seal therebetween, and the O-ring 15 is subjected to a low-... | 04/01/2003 |
| 6523863 | Coupling for fluid pipes Provided is a coupling for fluid pipes, comprising a plug and a socket. The socket includes a socket body, a sleeve slidably fitted on the outer peripheral surface of the socket body and urged toward the distal end thereof, and a plurality of locking memb... | 02/25/2003 |
| 6517118 | Hose device for fuel transportation A hose device for fuel transportation having superior methanol permeation resistance, methanol resistance, non-extractability with methanol, water resistance, heat resistance, pressure resistance, etc., when methanol is used as a fuel. The hose device for... | 02/11/2003 |
| 6447028 | Joint fitting A fitting for connecting two components is described. The fitting may be explosion proof for use in hazardous environments. The fitting may swivel allowing fast and easy connection to fixed components, thus minimizing the time required for installation an... | 09/10/2002 |
| 6443502 | Leakage restriction device for refrigeration cycle A leakage restriction device for a refrigeration cycle of a vehicle air conditioner in which refrigerant flows has first and second rubber gaskets. The first and second gaskets are disposed between a pipe and a pipe joint of the refrigeration cycle for re... | 09/03/2002 |
| 6419282 | Compliant zero evaporative fuel connection A fluid assembly is disclosed. The fluid assembly includes a first conduit having a generally annular first body and a first longitudinal channel extending therethrough and a second conduit having a generally annular second body disposed over a portion of... | 07/16/2002 |
| 6367850 | Fitting assembly for fluid and vapor connection A fitting assembly for fluid and vapor connection comprising a first tube, a second tube and a ring. The first tube has a male member at the end of the first tube and a radially enlarged upset formed at a distance from the end of the first tube. The secon... | 04/09/2002 |
| 6286877 | Dual seal pipe coupling An improved dual seal pipe coupling is provided of the type having matingly interfitting male and female pipe fittings formed on adjacent ends of a pair of conduit members, wherein at least one of a pair of seal rings is vented at low pressure to prevent ... | 09/11/2001 |
| 6260851 | Composite gasket and assembly comprising such a gasket A composite gasket (1) arranged to be frictionally fitted around a rigid tube end (2) is designed for insertion into a part (3) provided with an aperture (4) in the form of a cylindrical bore for coupling with the tube end. The gasket includes at least on... | 07/17/2001 |
| 6260891 | Press-fitting for non removable tube coupling A press fitting for producing a nondetachable tight connection of smooth-ended pipes which has at least one portion receiving a toroidal sealing element and an adjoining cylindrical area extending in the longitudinal direction, and is provided with a shou... | 07/17/2001 |
| 6073976 | Screwed pipe joint with cutting ring for metal tubes A pipe fitting (1) for connecting a metallic pipe line (10), including a pipe union (4), which contains a receiving opening (8) for the pipe line (10), a swivel nut (6), which can be threadedly connected with the pipe union (4), as well as metallic cuttin... | 06/13/2000 |
| 6045166 | High pressure plug/port assembly A high pressure plug/port assembly includes a plug having a head portion at one end, a guide portion at the other end and an O-ring portion therebetween. An annular plug seat surface extends radially inward from the head portion to the O-ring portion at t... | 04/04/2000 |
| 6027144 | Plug-in connector for pressure medium systems The present invention relates to a pressure medium plug-in connector, consisting of two connector parts, i.e. a housing part (2) and a plug part (4), wherein the plug part (4) with a plug shaft (6), via at least one peripheral seal (10) located in an annu... | 02/22/2000 |
| 6010161 | Plug connection for pressure systems A plug connection for a pressure system comprising a receptacle part and a plug part, the plug part is inserted into the receptacle part and retained therein by a locking device which forms a prelocked, unsealed connection and a locked, sealed connection ... | 01/04/2000 |
| 5904382 | Aseptic seal An aseptic or sanitary pipe or tube fitting including a first ferrule having an outer radial surface, a counterbore and an inner annular surface, and a second ferrule having an inner radial surface, an outer radial surface and an outer annular surface mat... | 05/18/1999 |
| 5845945 | Tubing interconnection system with different size snap ring grooves A threadless interconnection system for sections of pipe as provided by a male/female interconnection in which the male member and female members have mating tapered surfaces providing both the camming action for inset snap rings that engage concurrently ... | 12/08/1998 |
| 5797603 | Sealing ring and a method of mounting it The present invention relates mainly to a sealing ring and to a method of mounting it in a groove. According to the present invention, the sealing ring is twisted before being mounted in the groove so that the reaction forces retain it therein. The retent... | 08/25/1998 |
| 5746273 | Pitless well adapter In a pitless well adapter, an adapter insert from which a flow pipe and pump depends, is normally vertically, slidably and removably held by wedge ribs in an adapter housing. The top surfaces of the adapter insert and adapter housing are similarly formed ... | 05/05/1998 |
| 5683120 | Releasable push-to-connect tube fitting A fitting assembly for a releasable connection with a distal tubing end. The fitting includes a generally annular body formed as having an internal bore with a radial surface describing an internal gland having a forward end wall defining a contact edge w... | 11/04/1997 |
| 5617879 | Sealing arrangement for a coolant union having a floating seal assembly A sealing arrangement for a rotating coolant union for preventing leakage forward between the outer surface of a seal carrier of a floating seal assembly of the coolant union and the inner wall of the housing, includes an O-ring seal and an annular back-u... | 04/08/1997 |
| 5599600 | Nozzle repair shield Nozzle repair shields and methods for installing them are provided by this invention. The nozzle repair shield includes a cylindrical body portion having an annular flange disposed from the top end and at least one sealing lip disposed at its lower end. T... | 02/04/1997 |
| 5516122 | Ultra high vacuum elastomer seal An ultra high vacuum (UHV) joint is scaled by an elastomer O-ring (7) between adjacent flanges (3,4), fitting in a seal cavity formed by grooves (41,42) in the flange (3,4) surfaces. The groove surfaces (41,42) are highly polished and shaped such that the... | 05/14/1996 |
| 5433183 | Connection system for connecting a pipe carrying a hot fluid to a plastic member and its use in an internal combustion engine A sealed connection system for connecting a pipe carrying a hot fluid to a plastic member. The plastic member has a wall having an orifice extending therethrough. The sealed connection includes an internal projection formed in the wall and projecting into... | 07/18/1995 |
| 5423577 | Tubing connector An inventive tubing connector includes a tube (22) having an upset portion (24) receiving within a housing (26). a retainer (30) is positioned between an outer end of the housing and the upset portion to prevent tube removal. A seal (48) within the housin... | 06/13/1995 |
| 5314213 | Pipe coupling A pipe coupling, comprising a sleeve having at least one end adapted for the insertion of a pipe and being provided with a substantially conically shaped supporting surface for a sealing ring. A compression ring is provided by which the sealing ring may b... | 05/24/1994 |
| 5277849 | Rapid absorption steam humidifying system An improved apparatus for introducing steam into an airstream in heating, ventilating and air conditioning system includes a supply header, steam dispersing structure and structure for collecting condensation from the steam dispersing structure. The suppl... | 01/11/1994 |
| 5217236 | O-ring seal of geared-motor An O-ring seal configuration between a motor unit and a reduction gear head of a geared-motor is improved. An, O-ring holder is defined by a flange face of a bracket, which is fit to a frame of the motor unit and a guide groove, which is formed on an oute... | 06/08/1993 |
| 5197769 | Adjustable O-ring port fitting for a hydraulic coupling The present invention is a hydraulic coupling and method of making the same. The coupling includes a male fitting, a female port, and a lock nut. The male fitting has external threads which receive the female port and the lock nut. The female port has an ... | 03/30/1993 |
| 5188495 | Fastener assembly useful as drain plug A fastener assembly comprises a metal screw and a sealing ring made from an elastomeric material and is useful, in an exemplary application, as a drain plug for an oil pan for an internal combustion engine. The screw head has an undercut, annular recess, ... | 02/23/1993 |
| 5161806 | Spring-loaded, hollow, elliptical ring seal A canted-coil spring-loaded ring seal assembly including a plurality of coils having a major and a minor axis and canted along a center line defined by an intersection of the major and minor axes along with an elastic material, disposed around and between... | 11/10/1992 |
| 5141262 | Means of lowering the operational temperature for elastomeric seals A means is disclosed by which the operational temperature of a sealed relatively rotating device may be achieved at lower than recommended operational temperatures for the elastomer compound used as the sealing material.... | 08/25/1992 |
| 5131694 | Joint seal between valve body and removable port An angle valve has a side port bore with a cylindrical inner seal surface chamfered at its outer end and a removable port fitting receivable in the port bore and having a cylindrical outer seal surface in which are formed two axially spaced-apart circumfe... | 07/21/1992 |
| 5118141 | Union joint A union joint capable of perfectly hermetically connecting pipes so that a gas passing the pipes never leaks from the junction of the pipes even if the pressure of the gas is as high as 150 kg/cm2. The union joint comprises a first sleeve herme... | 06/02/1992 |
| 5096231 | Flexible fluid conduit assembly An improved hose fitting assembly is disclosed which is designed for use in automotive air conditioning systems and is particularly well suited for use in such systems employing recently developed composite type hose which incorporates an inner liner of a... | 03/17/1992 |
