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| Number | Title | Issue Date |
| 7398813 | Device for welding plastic tubes Plastic tubes are welded by first placing the plastic tubes across aligned tube slots in a pair of side by side tube holders. The tubes are clamped to create a fluid free area. The clamps in one of the tube holders are shifted laterally away from the other tube hold... | 07/15/2008 |
| 7347910 | Method for manufacturing a container end wall of lightweight construction and a container provided with such an end wall A method for producing a lightweight end wall of a containers characterized by the following stages: manufacturing a large size lightweight thermoplastics tube by spirally winding and joining together a hollow profile of thermoplastics, cutting a piece from such a t... | 03/25/2008 |
| 7256374 | Induction heating apparatus for controlling the welding parameter of temperature for heat treating a section of piping The present invention relates to a novel induction heating apparatus for controlling the welding parameter of temperature for a pre-weld heating operation, interpass operation, or a hydrogen bake-out operation. Specifically, the present invention relates to using a ... | 08/14/2007 |
| 7226649 | Laser weldable flexible medical tubings, films and assemblies thereof The present invention provides a tubing assembly having a sidewall having a first layer. The first layer is fabricated from a first polymer blend comprising a first component of a material not thermally responsive to laser beam and selected from the group consisting... | 06/05/2007 |
| 7223262 | Connector, container with such a connector and fluid preparation device with a mating connector for such a container The invention relates to the field of connectors for connecting a container with a fluid preparation device for preparing a fluid, in particular a container with a concentrate for the preparation of dialysis fluid. In order to simplify the handling during both the m... | 05/29/2007 |
| 7119305 | Tube connecting apparatus The present invention has a purpose of providing a tube connecting apparatus capable of stably, accurately executing control of wafer temperature even when connecting of tubes is conducted continuously. A tube connecting apparatus (1) includes a heater (70... | 10/10/2006 |
| 7022205 | Apparatus and method for forming a butt splice The present invention relates to a method and apparatus for splicing a web of layered material so that a new roll of material may be joined to an expiring web via a butt joint. A shear wheel is driven to ensure that the shear wheel positively rotates as it cuts acro... | 04/04/2006 |
| 6994766 | Beveled cutter Disclosed is a method, apparatus, and design of a fusion welded pipe wherein the effects of an inner bead of the fusion weld are minimized. The internal shape of the pipe prior to welding may be configured in several different shapes so that the beads or lips produc... | 02/07/2006 |
| 6918986 | Method and apparatus for trimming plastic seams Method and apparatus for trimming plastic frames. Frames are joined to bring heated, soften ends into engagement, causing some softened material to be forced out from between the engaged portions, forming a flashing. This flashing is trimmed by a pair of trimming bl... | 07/19/2005 |
| 6913056 | Apparatus and method for connecting and disconnecting flexible tubing A laser strikes and aseptically heats or sterilizes the end of two flexible tube ends for connection. Tube holders are pushed toward each other to bring the tube ends into contact. A weld detector checks the characteristics of the weld. A laser optics assembly may b... | 07/05/2005 |
| 6705372 | Tube connecting apparatus A buckle pivotally arranged in a movable clamp 12 of a first tube holder 1 is attached with play to a buckle 120 pivotally arranged in a movable clamp 82 of a second tube holder 2. When tubes are held in the first and second tube h... | 03/16/2004 |
| 6688362 | Multi-functional press for welding plastics tubes The invention relates to a multi-functional press for welding plastic tubes and joints particularly polyethylene, polypropylene, polybutene and polyvinyldifluoride tubes and joints, comprising a first fixed base and a second base, movable with respect to ... | 02/10/2004 |
| 6637489 | Wafer for use in the selective connecting and disconnecting of plastic tubes A wafer for use in selectively connecting and disconnecting plastic tubes is in the form of a heatable plate having side walls and having a leading end and a trailing end. An outwardly extending scoop is formed on each of the side walls between and spaced... | 10/28/2003 |
| 6629551 | Beadless welding apparatus comprising a weld head having a bias member for axial displacement A conduction welding apparatus and method for bonding abutted thermal plastic tubular end portions is particularly suitable for welding PFA. In a preferred embodiment, a folding weld head embraces the abutted the tubular end portions to be welded, each tu... | 10/07/2003 |
| 6559296 | DNA capillary The present invention relates to an apparatus for detecting nucleic acid molecules such as target DNA molecules and mRNA molecules by using a DNA probe, and provides a DNA capillary, comprising a fluid passageway formed of a cylindrical capillary made of ... | 05/06/2003 |
| 6550514 | Indexer system for use with a plastic pipe butt-fusion machine An indexer system for a plastic pipe butt-fusion machine of the type having a machine super-structure, parallel horizontal support shafts affixed to the super-structure, a first clamp system for removably grasping an end portion of a first length of plast... | 04/22/2003 |
| 6485593 | Sterile docking apparatus and method of use An apparatus and method for sterilely coupling two bodies of fluids in fluid communication utilizes a clamp transportable into a sterile enclosure. A pair of tubing segments, each communicating with one of the fluid bodies, is preferably retained in the c... | 11/26/2002 |
| 6463979 | Tube connecting apparatus A buckle pivotally arranged in a movable clamp 12 of a first tube holder 1 is attached with play to a buckle 120 pivotally arranged in a movable clamp 82 of a second tube holder 2. When tubes are held in the first and second tube holders 1 and 2, release ... | 10/15/2002 |
| 6460592 | Tube connecting apparatus A tube connecting apparatus is arranged to hold tubes in a first tube holder and a second tube holder, to rotate a pair of rotatable clamping members which include separable pieces disposed in rotational symmetry for holding the tubes in either or both of... | 10/08/2002 |
| 6409873 | Process and apparatus for bonding a pair of ducts together in which a removable member is used to help support and maintain alignment between the ducts during bonding The present invention provides a method of joining a mating face of a first through duct to a mating face of a second duct. Specifically, the method includes bonding the first duct mating face to the second duct mating face to form a bonded structure whil... | 06/25/2002 |
| 6398902 | Method of end bonding tubular sections and bonding a flange on the end of tubular sections A tool and related method uses an insert for lap splicing two end to end connected tubes to one another. The insert is formed from plurality of members which together are receivable into the internal size and shape of the internal tubular member. The inse... | 06/04/2002 |
| 6395127 | Insert for use in conjoining tubular end portions An insert and method of use for conjoining plastic tubular end portion to form a beadless weldment. The insert comprises a first core portion having a longitudinal axis and a first circumferential surface, and a second tubing contact portion having a long... | 05/28/2002 |
| 6341637 | Tube connecting apparatus A tube connecting apparatus for grasping and heating to melt and alternately connect the cut ends of a plurality of tubes is disclosed. A first tube holder and a second tube holder for grasping the tubes are provided with a pair of clamps having holding p... | 01/29/2002 |
| 6228204 | Method and apparatus for welding together fluoropolymer pipe liners An apparatus for welding fluoropolymeric pipe liners together comprising: a plate having first and second opposing surfaces, the first and second opposing surfaces facing away from each other; a temperature-resistant coating overlaying at least one of the... | 05/08/2001 |
| 6047757 | Angled sidewall fusing apparatus The present invention is directed to an apparatus for fusing a sidewall pipe onto a host pipe at an angle of less than 90°. The apparatus prevents the angled sidewall pipe from migrating during the fusing operation. Also provided is a radius cutter for c... | 04/11/2000 |
| 6026882 | Tube connecting apparatus A tube connecting apparatus for grasping and heating to melt and alternately connect the cut ends of a plurality of tubes is disclosed. A first tube holder and a second tube holder for grasping the tubes are provided with a pair of clamps having holding p... | 02/22/2000 |
| 5919335 | Facer and hand held tool for joining small diameter plastic pipe A hand held tool for facing and joining the ends of opposed lengths of plastic pipe in axial alignment has a generally horizontal body and a generally vertical fixed handle extending from the body. A cylindrical shaft is supported by the body perpendicula... | 07/06/1999 |
| 5900107 | Fitting installation process and apparatus for a molded plastic vessel A molded plastic vessel is provided with a fitting or other attachment after molding and before winding of the vessel. The fitting is provided with a plastic insert. The insert and a wall of the vessel are heated and welded together to hold the fitting on... | 05/04/1999 |
| 5895593 | Plastic fishing bait coupling tool A plastic fishing bait coupling tool for fusing plastic fishing baits together to form a unique fishing bait. The tool includes a base with a heating rod outwardly extending from a perimeter side wall of the base. The heating rod has an elongate inner por... | 04/20/1999 |
| 5893961 | Backing ring clamping system A method and apparatus for fusing a bell connector to the end of a corrugated thermoplastic pipe are disclosed in which an expandable mandrel grips a preformed bell and a pipe support grips a pipe co-axial with the longitudinal axis of the bell. A pipe tr... | 04/13/1999 |
| 5888328 | Weld integrity test kit A kit for testing the integrity of sterile tubing welds made by a sterile tubing welding machine employing welding wafers includes a plurality of tubing samples, and a container having a series of receptacles for holding the tubing samples and the wafers ... | 03/30/1999 |
| 5879503 | Splicing tool and method for joining a first tube and a second tube According to an aspect of the present invention, the foregoing needs are addressed by a splicing tool for joining a first tube and a second tube, including a first member and a second member which are moveably coupled. The first member has a first handle ... | 03/09/1999 |
| 5871612 | Wafer for use in selective connecting and disconnecting of plastic tubes A wafer for use in the selective connecting and disconnecting of plastic tubes incorporates a fuse in an aperture. The fuse is made of a laminate having light transmission characteristics which change after the wafer and its laminate have been heated. The... | 02/16/1999 |
| 5855731 | Sterile containment welding device for plastic tubes A sterile containment welding device for plastic tubes includes a pair of alignable tube holders each of which includes a base having a tube receiving channel and a clamping jaw pivotally mounted to the base. The outer end of the tube receiving channel is... | 01/05/1999 |
| 5843271 | Plastic pipe butt fusion machine and cart assembly An assembly is provided for butt fusing lengths of plastic pipe in axial relationship. The assembly includes a cart having a chassis and wheels, the chassis having a longitudinal axis defined by the direction of movement of the cart in a straight line. A ... | 12/01/1998 |
| 5830312 | Butt fusion apparatus with clamping jaws for clamping pipe to be fused without interference between the clamps and the pipe An apparatus for attaching abutting ends of first and second coaxial pipe sections together includes a support frame, at least two spaced-part fixed pipe clamping jaws having respective upper and lower jaw halves carried by the support frame for positioni... | 11/03/1998 |
| 5814182 | Self-contained and self-propelled machine for heat fusing polyolefin pipes Polyolefin pipes are welded end-to-end by a self-propelled, self-contained machine which performs all steps necessary to the process without need for any other machines or equipment. Hydraulically driven parallel tracks are independently controlled for ma... | 09/29/1998 |
| 5814181 | Device for butt welding pipes of thermoplastic plastic A device for butt welding pipes of thermoplastic plastic includes two pipe clamping units, aligned flush relative to each other, for clamping pipe ends therein. A first of the two units can be moved in the alignment direction by an electric motor and via ... | 09/29/1998 |
| 5802689 | Tube connecting apparatus A tube connecting apparatus includes first and second tube holders holding flexible tubes, a cutting blade for heating, melting and cutting the tubes held by the holders between the holders, and a holder displacing mechanism for relatively displacing the ... | 09/08/1998 |
| 5743992 | Butt fusion apparatus with constant pressure accumulator An apparatus for attaching abutting ends of first and second coaxial pipe sections together. The apparatus includes a support frame, a fixed pipe clamping jaw having upper and lower jaw halves carried by the support frame for positioning the first pipe se... | 04/28/1998 |
