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| Number | Title | Issue Date |
| 7984930 | Preconditioned air connector assembly for aircraft In certain embodiments, a PCA connector has a nylon body, wherein the nylon is durable, corrosion resistant, and exhibits excellent strength over a large range of temperature and moisture conditions. The nylon body may be described as a single structure with integra... | 07/26/2011 |
| 7976072 | Receptacle with rotating release lock A connector for a high amperage, AC or DC connection comprises a plug and a receptacle configured to a securely mate and lock with each other. Connector receptacles comprise a locking mechanism having a bottom latch bracket having two slots, a top latch bracket havi... | 07/12/2011 |
| 7543857 | Self-locking roller cam for hose and pipe coupling A coupling for joining conduits together is disclosed, the coupling having male and female fitting portions held in engagement by a self-locking roller cam positioned on the female portion. The roller cam has a cam body rotatable about an axis offset from the center... | 06/09/2009 |
| 7520538 | Orbital tube welding purge adaptor A purge gas introduction system for an orbital tube welding setup is provided, configured to inject high purity inert purge gas to the interior volume of a tube or tubular component. An o-ring is interposed between an annular base and an annular ring, their junction... | 04/21/2009 |
| 7434781 | Remotely actuated quick connect/disconnect coupling A water flushing system for a pressurized subterranean water distribution system includes an inlet conduit for receiving pressurized water from the subterranean water distribution system; an outlet fluidly connected to the inlet conduit for discharging pressurized w... | 10/14/2008 |
| 7354077 | Quick connect/disconnect coupler with locking strap A coupler with an elongated inner member with an axial channel therethrough that is adapted to be removably disposed within a passage extending through an outer member. The inner member has a surface at one end that is adapted to engage and seal on a surface of the ... | 04/08/2008 |
| 7273238 | Duct coupler apparatus with compressible seals An apparatus for joining the ends of a pair of ribbed ducts together has a collar with an interior suitable for receiving the ends of the pair of ducts therein, a first coupler element translatably secured adjacent a first end of the collar, a compressible seal disp... | 09/25/2007 |
| 7267375 | Duct coupler apparatus An apparatus for joining ends of a pair of ducts together in end-to-end relationship has a collar with a first end portion and a second end portion, a first coupler element translatably secured to an exterior of the collar for moving the first end portion between fi... | 09/11/2007 |
| 7210201 | Clamp coupling for pipes The invention concerns a clamp coupling for coupling pairs of pipes. Such clamp couplings are used, for example, for coupling concrete conduits from concrete pumps. This clamp coupling (10) comprises two clamp shells (16, 18) which, in the coupling sta... | 05/01/2007 |
| 7207605 | Tube coupling Coupling components which prevent relative rotation between tubular members when break away torque forces are applied to the tubular members. In one embodiment, the invention is a locking ring for preventing relative axial rotation between two generally tubular memb... | 04/24/2007 |
| 7168451 | Removable hose cover A removable hose cover comprises a hose cover which is adapted to telescopically receive a hose therein. The hose cover has at least one hose cover end fitting on one end thereof and the hose has at least one end fitting on one end thereof, The hose cover end fittin... | 01/30/2007 |
| 7152886 | Preconditioned air connector assembly for aircraft A connector for coupling a preconditioned air source to an aircraft is provided. The connector comprises actuating members rotatably secured to a body. In one embodiment, the actuating members are supported, at least partially, by an integrated bearing assembly. The... | 12/26/2006 |
| 7093609 | Air inflation tube of a mini-size air pump An air inflation tube of a mini-size air pump is disclosed. The air inflation tube of the air pump has a dual direction air inflation capability, that is, inflation and deflation, and the pressure releasing and air pumping are done by the same tubular body to solve ... | 08/22/2006 |
| 7083201 | Junction plate assembly for undersea hydraulic couplings An apparatus for simultaneously moving male and female coupling members attached to manifold or junction plates together or apart includes sloped cam surfaces on the first or rear junction plate, a central shaft having cam followers that move up the sloped cam surfa... | 08/01/2006 |
| 7055864 | Pneumatic coupling A pneumatic coupling is provided. The pneumatic coupling is configured to couple a plurality of pneumatic lines together. According to the preferred embodiment of the present disclosure, the pneumatic coupling includes first and second housings and a plurality of fi... | 06/06/2006 |
| 6791031 | Electrical conduit fitting and method A fitting for an electrical conduit uses a cam lock arrangement. The fitting has an annular pocket for receiving the end of a conduit section. An opening through the wall of the fitting intersects the pocket. The cam lock is mounted so that a cam portion projects th... | 09/14/2004 |
| 6752434 | Tube expansion joint A junction for connecting first and second adjacent sections in a guideway carrying pressurized fluid comprises female end portions on a first section, male end portions on a second section partially received within the female end portions, and a vessel. The vessel ... | 06/22/2004 |
| 6543812 | Self-locking quick release coupler adapted to a groove adapter A self-locking quick release coupler includes a handle and a lever. The first distal end of the handle is adapted to be secured to a side face of the groove adapter. The handle has a head formed on the first distal end thereof. The head is extendable into... | 04/08/2003 |
| 6508274 | Fitting dust plug The present invention is directed towards a dust plug for insertion into a fluid conduit system. The dust plug is comprised of an insertion end, removal means, and a hollow central body located between the insertion end and the removal means. The insertio... | 01/21/2003 |
| 6505861 | Rotatable swivel elbow The invention relates to a swivel adapter-coupler that is to be positioned between a conventional fixed drop elbow on the end of a hose of a tanker truck for an underground storage tank. The other end of the swivel adapter-coupler attaches to the pipe ada... | 01/14/2003 |
| 6447016 | Passive locking cam and groove coupling A passive locking Cam & Groove female coupling, consisting of a locking latch mounted straddling the exterior of each cam arm attached to the coupling. The latch interlocks with a stop on the coupling body to provide a passive lock when the arm is closed.... | 09/10/2002 |
| 6412827 | Lockable quick connect/disconnect coupling A QCD coupling in which a rotating subsidiary locking means is provided which is both positive in its locking action, locks all of the levers simultaneously, and does not involve any small or readily losable parts, as the subsidiary locking means is itsel... | 07/02/2002 |
| 6371523 | Position-recoverable pulling device adapted for use in a fitting that couples two tubular members A position-recoverable pulling device is adaptable for attachment to a lock bolt of a fitting for coupling two tubular members, and includes an anchoring member with a cam surface, and a coiled pulling member including a plurality of loops which are biase... | 04/16/2002 |
| 6364369 | Tube connecting device A tube connecting device comprises a housing, a socket formed in the housing for receipt of a pipe to be releasably secured therein and a securing arm pivotally mounted to the housing. The securing arm is pivotable from a first, locked position in which a... | 04/02/2002 |
| 6290267 | Cam-lock fitting The invention is an improved cam-lock fitting having grooves in the outer surface of the fitting for accepting cams of a mating fitting. The grooves are provided without forming indentations or obstructions in the interior flow through passage of the fitt... | 09/18/2001 |
| 6224113 | Locking device for a quick release coupling A locking device for a quick release coupling includes a coupling, a lever and a sleeve containing an arcuate groove therein. The sleeve is attached to the coupling and the lever is pivotally mounted on the coupling. The coupling includes at least two pai... | 05/01/2001 |
| 6206431 | Safety locking coupling assembly A safety locking coupling assembly in which pull rings on the female coupling unit of a male coupling unit/female coupling unit assembly serve both to release the coupling assembly and to maintain the coupling assembly locked against unintentional disconn... | 03/27/2001 |
| 6155611 | Removable tube connectors gas tight at high temperatures, tube connection process and usage A connector (1) for connecting two tubes (5, 6) by cooperation between a first element (3) fixed to a first tube (6) and a second tube (2) forming a sleeve for a second element (5) fitted at its end with a flared part (50, 51, 52, 53) by a claw (4) includ... | 12/05/2000 |
| 6120065 | Quick coupling An improved structure of quick coupling comprises mainly a main connecting body, press rods, stoppers and flange press portions. Each of two lateral sides of the main connecting body is extended to form a pair of flanges, which is provided with circular h... | 09/19/2000 |
| 6099044 | Clamping device, in particular for a male coupling The invention relates to a clamping device, in particular for a male coupling, with a substantially cylindrical housing, a clamping member mounted to be axially displaceable therein, and an actuation member which is arranged on the rear end of the housing... | 08/08/2000 |
| 6089619 | Locking cam-type coupling A locking cam-type coupling for rapidly coupling two pipe sections together. A spring-biased lock pin is provided for each cam lever arm that has a positive locking action when the cam lever arm is moved to the closed position. Each cam lever arm is groov... | 07/18/2000 |
| 6053540 | Fluid conducting coupling Fluid conducting coupling includes a coupler having a first end, a second end for receiving a free end of a connector having a catch disposed on the free end, a flow passageway extending through the first and second ends of the coupler, and a side opening... | 04/25/2000 |
| 6047995 | Pipe connector A pipe connector comprises a plug having a groove on the outer periphery of the distal end portion thereof, a socket having an axial hole to receive the distal end portion of the plug and a radial hole, a sealing member attached to the socket and sealing ... | 04/11/2000 |
| 6015168 | Pivotal lock for coupling cam arms A locking mechanism for securing a cam arm of a coupling member in a locked position to prevent inadvertent rotation of the cam arm. The locking mechanism includes a locking member that is pivotally connected to the cam arm and is adapted to selectively i... | 01/18/2000 |
| 5988693 | Safety locking coupling assembly A safety locking coupling assembly in which pull rings on the female coupling unit of a male coupling unit/female coupling unit assembly serve both to release the coupling assembly and to maintain the coupling assembly locked against unintentional disconn... | 11/23/1999 |
| 5984371 | Hydraulic coupling device In the device, the male connection members (3) are carried by a plate (11) provided with a pair of identical downwardly-extending side prongs, each of the prongs being provided with a recess (101) having a forwardly-facing shaped edge, whereas the female ... | 11/16/1999 |
| 5967174 | Spill containment system The patent discloses apparatus for removing and containing spills occurring upon filling of a delivery tank truck. The spill catching basin and more particularly the drains mounted to the tops of tanks are modified to deliver liquid spilled into the basin... | 10/19/1999 |
| 5954373 | Duct coupler apparatus A coupler apparatus for use with ducts is used on a multi-strand post-tensioning system. The coupler includes a tubular body with an interior passageway between a first open end and a second open end. A shoulder is formed within the tubular body between t... | 09/21/1999 |
| 5947530 | Live swivel coupling Live swivel coupling has a hollow first housing and a hollow second housing, each of which is open on opposing ends in a main axial direction. The first has a generally radially symmetrical inner surface and an indentation in the inner surface, and the se... | 09/07/1999 |
| 5927760 | Hose coupling protector A female hose coupling comprises a rigid sleeve for receiving a conduit stub on a liquid tank. The female hose coupling includes a smaller diameter conduit which slips inside a flexible hose. A pair of pivoted levers are mounted on the exterior of the rig... | 07/27/1999 |
