| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 029890043 | Tube joint and tube plate structure | 6 |
| 20100139094 | Method and System for Manufacturing Aluminum Tube and Fin Heat Exchanger Using Open Flame Brazing, and Product Produced Thereby - According to the preferred embodiment, an improved method and apparatus for the manufacturing of an aluminum tube and aluminum fin heat exchanger that includes steps for pneumatic cleaning, thermal cleaning, and uncontrolled-atmosphere open-flame autobrazing of hairpins to return bend fittings. The method uses a tube lubrication system that is adjustable to control amount of lubrication applied to the tube prior to final expansion. The method uses a pneumatic coil cleaning station that is adjusted to reduce the residual oil particulate from the expansion process required to be thermally cleaned. | 06-10-2010 |
| 20130180109 | METHOD OF JOINING TUBE AND TUBE SHEET IN SHELL & TUBE HEAT EXCHANGER - A method of joining tubes that are regularly arranged in a shell & tube heat exchanger to tube sheets placed at opposite ends of the tubes and a shell & tube heat exchanger produced by the method. The method of joining the tubes to the tube sheets includes: forming a tube sheet groove in a surface of the tube sheet at a location spaced apart from a tube insert hole of the tube sheet by a predetermined distance, and forming a tube holding groove in an inner surface of the tube insert hole; inserting the tube into the tube insert hole of the tube sheet and expanding the tube; and performing both tube side welding and shell side welding so as to join the tube to the tube sheet. | 07-18-2013 |
| 20130276305 | Method of Producing a Heat Exchanger and a Heat Exchanger - Method of producing a heat exchanger comprising a number of thin plates ( | 10-24-2013 |
| 20160199913 | CONDUIT SYSTEM | 07-14-2016 |
| 029890044 | Including conduit expansion or inflation | 2 |
| 20090139089 | METHOD OF JOINING MEMBERS - A method for joining members capable of firmly joining a first member made of a tubular member, such as, e.g., a pipe, to a second member is provided. The following items are prepared: a tubular first member | 06-04-2009 |
| 20130340254 | System and method for radially expanding hollow cylindrical objects - A system and method for radially expanding hollow cylindrical objects, through the use of a tube expansion tooling, affixing a mandrel in place, the tooling rendered operative through the generation of hydraulic pressure, to provide the axial force necessary for pulling of the mandrel into the tool, and the mandrel having concentrically applied thereon various spacers, cams, and curved segments, which when the drawbar of the mandrel is pulled, manual forces are generated through the cams and segments into an expansion capacity to force the expansion of any tube in which the mandrel locates, to be expanded into a tight binding fit within a tube sheet or any other bore hole formed in equipment. | 12-26-2013 |
