Abstract: A pusher assembly for a stent delivery device includes a distal end of an elongate member and a stent-engaging member having proximal and distal ends. The proximal end of the stent-engaging member is mechanically coupled to the distal end of the inner member by a connector, or the proximal end of the stent-engaging member is at least partially inside the distal end of the elongate inner member. The stent-engaging member includes a portion that radially outwardly extends towards the distal end of the stent-engaging member, or the stent-engaging member includes a portion that radially outwardly extends towards the distal end of the stent-engaging member. The stent-engaging member is configured to move a stent when distally advanced and configured to not move a stent when proximally retracted. A stent delivery device includes an elongate outer member, an elongate inner member coaxially positioned within the outer member, and the pusher assembly.

Abstract: A method for installing a flange on the end of a tubular member lined with a thermoplastic liner is provided. The flange is formed with a groove having extrusion openings extending from the front to the rear surface of the flange, the groove for receiving the reformed end of the liner which is forced into the extrusion openings and extends above the front surface of the flange to provide a surface for securing with a corresponding flange.

Abstract: The present invention is generally characterized in an angled rotary tissue cutting instrument including an outer blade assembly, having a rigid tubular member with proximal and distal portions connected by a bend, and an inner blade assembly rotatably disposed within the outer blade assembly and including a tubular drive shaft at a proximal end, a cutting tip at a distal end, and a flexible coupling disposed between the drive shaft and the cutting tip. The drive shaft and cutting tip include neck portions which are disposed telescopically within proximal and distal ends of the coupling.

Abstract: An assembly for attaching a new hose to an existing fitting includes an expandable split ring having an internal diameter less than the diameter of a preformed radially outwardly extending annular wall on the fitting, and a collar that is positionable over the fitting and the expandable split ring. The collar has a radially inwardly extending wall portion and a deformable sleeve portion. The split ring is positionable adjacent the annular wall on the fitting, and the radially inwardly extending wall portion of the collar is positionable in an abutting relationship with the expandable split ring. The deformable sleeve portion of the collar is inwardly deformable to provide retention of the collar, split ring, and hose on the fitting. The present invention solves the problem of the need for new fittings when modifying existing refrigeration systems to accept new refrigerants.

Abstract: When drilling in soil and simultaneous loading of casing tube, it is desirable to be able to use casing tubes of plastic material such as PEH-plastic. This is made possible by a special design of a casing shoe giving a strong joint between the casing shoe and the casing tube. The casing shoe is made of metal and has a part which is perforated with holes filled with the plastic material. Tube couplings between the casing tubes can also be joined to the tubes in the same way as the casing shoe. In other words, they can be made of metal and each have one part perforated with holes filled with the plastic material.

Abstract: A waterproof coupling between at least one tube and at least one endpiece by means of a molded portion secured to the tube and providing means that provide sealing between the tube and the endpieces, wherein said portion which is made of a material of the elastomer type or of a material having analogous properties, and that has been vulcanized or cross-linked after molding, is also secured, after vulcanization or cross-linking, to a ring or sleeve by means of which the tube is suitable for being assembled to the endpiece.

Abstract: A hose coupling for use with flexible hose comprises a biconical fitting which is inserted into a hose end and a frusto-conical locking sleeve located about the hose portion which grips the rearward conical section of the fitting. Sealing arrangements for specific embodiments of hose are disclosed. The double included angle of the conical portion of the sleeve and fitting, which engages the hose, is between one degree but less than ten degrees.

Abstract: An improved connecting device for of securing a pipe fitting of one material to a pipe of another. This invention provides a connector body with an insert fitting which does not leak therebetween. Further, the invented device has an integral annular flange, which extends into the surrounding body thereby preventing the body from expanding with heat and slipping with relation to the insert upon engaging the fitting with a nipple or other pipe material, and twisting forcefully.

Abstract: A fitting for installing on the terminus of large scale industrial hoses and method of making it and installing it, in which two annular steel rings are welded onto a cylinder formed of expanded metal, which subassembly is then mounted over an extruded rubber tube and is then wrapped with a friction layer of rubber, a braided textile reinforcement layer, steel cable reinforcement, and a wrapped or extruded rubber outer cover. A hump is built up over the annular ring welded on closest to the end of the expanded metal cylinder, and a flange is then butted up adjacent to this hump to effect installation of the end of the hose. During curing, rubber freely flows through the expanded metal cylinder, securely embedding the fitting within the hose.

Abstract: Coupling components are disclosed for coupling together tubes and the like including male and female coupling components. The female coupling component described herein includes inner and outer tubular sections, and the inner tubular section includes an orifice having a size adapted to frictionally engage a male coupling component inserted therein. The outer tubular section is adapted to frictionally engage the outer surface of the inner tubular section, and the outer tubular section is substantially rigid, while the inner tubular section is substantially flexible as compared to the outer tubular section, so that axial movement of the outer tubular section when it is being coupled to the male coupling component carries the inner tubular section therewith.

Abstract: A connection assembly is particularly useful for positively connecting a flexible hose member with an inlet plug for a suction source while being adapted for subsequent disconnection without requiring any specialized tools. In connecting operation, an integral extension portion of a flexible hose member is telescopically inserted into an inlet plug to a predetermined longitudinal stopping point therein, and then rotated so as to cause engagement of projections formed on the extension portion and projection-receiving holes formed in the inlet plug. Such engagement rotatably and longitudinally secures the flexible hose relative the inlet plug. Slots are formed in the inlet plug for guiding the hose member projections during longitidinal movement of the hose member. The hose member may be selectively withdrawn by reverse rotation of the hose extension portion and longitudinal removal thereof from the inlet plug.

Abstract: A hose fitting for use with high pressure hoses and/or hoses with large diameter with reinforcement layers incorporated into the hose material consists in a metal nipple to which, on the one hand, each reinforcement layer is individually fixed, and which, on the other hand, is connected in seal-tight manner and firmly with the inner and covering layers of the hose. So that the strength of the hose construction in the area of the fitting should not be reduced, and in particular the internal pressure resistance should not be lowered, the nipple has a plurality of concentric shells which are firmly connected with the nipple and are disposed in a radial direction at a distance one from the other, so that radial clearances between adjoining shells are produced. The fixing ends of the reinforcement layers engage into the clearances between the shells, each reinforcement layer being fixed to at least one shell surface.

Abstract: A connection (20) for oilwell tubular joints (8 and 9) to effect a fluid tight conduit wherein one of two cooperating stop shoulders (19) of limited dimension is formed with peaks (22) and valleys (24) such that the peaks contact the other stop shoulder (18) upon full make-up of the connection so as to provide channels (24) for the escape of lubricant from between the shoulders and thereby effect a higher overload torque capacity for the connection, without sacrificing other characteristics of the connection.

Abstract: Coupling apparatus for forming a fluid tight connection with a hose. The coupling apparatus circumferentially sealingly engages a first section in the end portion of a hose when the hose end is pushed into contact with the apparatus. When the hose end is, after being initially pushed into sealing engagement with the coupling apparatus, pulled in a direction away from the apparatus, the apparatus circumferentially sealingly engages a second section of the end portion of the hose.

Abstract: A coupling is set forth for joining a beaded end and a plain end glass pipe together, wherein an outer clamping band retains an elastomeric sleeve therewithin and inhibits the longitudinal flow thereof by means of openings and projections formed in the outer periphery of the band, and said elastomeric sleeve is provided with varying diameters and recesses for providing unequal force distribution across the coupling while limiting the longitudinal expansion of the elastomeric sleeve.

Abstract: The present invention is generally characterized in an angled rotary tissue cutting instrument including an outer blade assembly, having a rigid tubular member with proximal and distal portions connected by a bead, and an inner blade assembly rotatably disposed within the outer blade assembly and including a tubular drive shaft at a proximal end, a cutting tip at a distal end, and a flexible coupling disposed between the drive shaft and the cutting tip. The drive shaft and cutting tip include neck portions which are disposed telescopically within proximal and distal ends of the coupling.