| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 072048000 | BY TOOL-COUPLE PRESSING TOGETHER ADJACENT SURFACE PORTIONS OF SAME WORK (E.G., TUBE-SEAMER) | 13 |
| 20120174642 | MULTI-ROLL MANDREL MILL AND METHOD OF PRODUCING SEAMLESS TUBES - A multi-roll mandrel mill for compacting of roll chock portions has a plurality of grooved roll bodies as a roll pass which performs a reduction rolling of a shell, and a plurality of roll stands each having backup rolls for driving the grooved roll bodies, wherein bearings are internally contained in the grooved roll body. A multi-roll mandrel mill for optimizing the design of roll chock portions for every setup has a plurality of grooved roll bodies as a roll pass which performs the reduction rolling of a shell and a plurality of roll stands each having roll shafts and roll chock portions for driving the grooved roll bodies. According to a tube-making setup of the mandrel mill, at least one of either or both of the roll shafts and the roll chock portions is replaced with a part(s) having a different shape(s) in addition to the grooved roll bodies. | 07-12-2012 |
| 20130186158 | MANUFACTURING METHOD OF LAMINATED IRON CORE - There is provided a manufacturing method of a laminated iron core which is formed of a strip-shaped iron core piece. The strip-shaped iron core piece includes segment iron core pieces connected through a joint positioned in a radial outside, and each of the segment iron core pieces has an artuate shape. The joint by which adjacent segment iron core pieces are connected is folded and lateral ends of the adjacent segment iron core pieces are aligned. The strip-shaped iron core piece is spirally wound while circumferentially shifting mutual joints formed on vertical adjacent layers. Crush processing is performed for flattening a bulged portion in a thickness direction of the segment iron core pieces formed at a time of folding the joint, and the crush processing is performed simultaneously with a time when or after mutual segment iron core pieces arranged vertically are crimped and laminated. | 07-25-2013 |
| 072049000 | To form helically-seamed tube | 6 |
| 20090272164 | Tube making machine with diameter control and method - A spiral pipe forming system which includes automatic diameter or dimension sensing and control. | 11-05-2009 |
| 20090320542 | Tube making machine with diameter control and method - A spiral pipe forming system and method which include automatic diameter or dimension sensing and correction. | 12-31-2009 |
| 20130333431 | STRIP GUIDANCE SYSTEM FOR MACHINES THAT FORM PIPES FROM CONTINUOUS PROFILED AND SPIRALLED STRIPS - “STRIP GUIDANCE SYSTEM FOR MACHINES THAT FROM PIPES FROM CONTINUOUS PROFILED AND SPIRALLED STRIPS” for machines that produce spiraled tubes ( | 12-19-2013 |
| 072050000 | Using roller conforming to seam contour | 3 |
| 20090165518 | Apparatus for and Method of Manufacturing Helically Wound Structures - An apparatus ( | 07-02-2009 |
| 20130247632 | METHOD FOR PRODUCING SPIRAL PIPE - In an embodiment, a long reinforcing material-attached profile strip ( | 09-26-2013 |
| 20140238094 | FLEXIBLE PIPE CARCASS FORMING APPARATUS - An apparatus for forming a carcass for encasing a tubular member including a driven rotor ( | 08-28-2014 |
| 072051000 | To form longitudinally-seamed tube | 5 |
| 20120073343 | METHOD FOR PRODUCING METAL SEALING ELEMENTS - A method for producing metallic sealing and stopper elements for flat gaskets by winding or rolling at least one metallic, sheet metal- or foil-like base body to obtain a tube as an intermediate product, bringing the mutually opposing end regions or parts, or the entire contact surface of the tube, into operative connection with each other by way of bonding, non-positive or positive joining techniques, or combinations thereof, contouring the tube or tube sections generated therefrom at least in some regions, and severing at least one annular or disk-shaped component in order to generate a sealing or stopper element in the contoured region of the tube or tube section. | 03-29-2012 |
| 20120186316 | APPARATUS FOR CLOSING PITTSBURGH SEAMS ASSOCIATED WITH DUCT ASSEMBLIES AND OTHER BOX-SHAPED MEMBERS - A vertical Pittsburgh seam closing apparatus having a base supporting surface for positioning a duct section thereon in a vertical orientation, a track mechanism for moving a carriage assembly which holds seam forming members used to close a Pittsburgh seam, a pair of upper and lower guide members for guiding the duct section into a proper position, and upper and lower clamping members movable between an unclamped position and a clamped position wherein each clamping member is positioned inside the duct section and adjacent the inside portion of the Pittsburgh seam to be closed, the upper guide members and clamping member being selectively movable and adjustable for accommodating different duct section lengths. In one embodiment, the seam forming assembly includes a pair of roller members mounted in vertical arrangement to each other, one roller member being V-shaped in configuration and the other roller member being substantially cylindrical in shape. | 07-26-2012 |
| 20130104614 | APPARATUS FOR CLOSING PITTSBURGH SEAMS ASSOCIATED WITH DUCT ASSEMBLIES AND OTHER BOX-SHAPED MEMBERS | 05-02-2013 |
| 20140096579 | Method For Producing Slit Hollow Profiles - A method for producing slit hollow profiles from a cut blank is provided, in which the hollow profile is produced from the essentially flat blank using rolling-up technology or using U-O-forming, so that the hollow profile has a slit in the axial direction along the abutting edges of the formed blank. Highly dimensionally stable, slit hollow profiles can be produced which can be easily joined to form closed hollow profiles, is achieved by the cut blank providing a circumferential length in the locally provided cross-sectional areas which is greater than the required forming length, so that when the cut blank is formed into a closed hollow profile the opposite edges of the formed cut blank abut on one another and when it is formed into the final shape at least the areas of the hollow profile abutting on the edge joint are at least partly compressed in the circumferential direction. | 04-10-2014 |
| 072052000 | During longitudinal movement of work | 1 |
| 20140238095 | INSTALLATION AND METHOD FOR CONTINUOUSLY SHAPING LONGITUDINALLY SLOTTED PIPES - A method and an installation for continuously shaping longitudinally slotted pipes ( | 08-28-2014 |
