Class / Patent application number | Description | Number of patent applications / Date published |
138154000 | SPIRALLY SEAMED | 6 |
20090301597 | DUCT ELEMENT FORMING AN AIR-CHANNEL FOR AIR HANDLING SYSTEMS - The object of the invention is thus a duct element made of a band-shaped strip ( | 12-10-2009 |
20110000573 | TUBULAR ARTICLE - The present invention provides a strip and a tubular article formed from said strip which may, for example, be used in the oil and gas industry for transporting fluids which may be volatile fluids or corrosive fluids and which may be at elevated temperatures and/or pressure. The strip includes a plurality of combined step (joggle) and rib arrangements. In the finished assembled article, the strip is wound in helically self-overlapping relationship such as to allow corresponding step portions to sit one within the other. The step effectively provides the dual function of a joggle and a rib as known in the art and does so in a manner that reduces the forming stresses in the material and increases the strength of the final article. | 01-06-2011 |
20110030834 | MULTI-LAYERED CORRUGATED TUBULAR ARTICLE - The present invention provides a multi-layered corrugated cylindrical tubular structure formed from a strip ( | 02-10-2011 |
20120152397 | Frame Tube for Light-Weighted Bicycle Frame - A frame tube for a light-weighted bicycle frame includes a spiral tube body having multiple spiral turns and made by processing 6-4 titanium, ASTM A313 or ASTM A564 high-strength stainless steel alloy sheet material of thickness under 1 mm. Each two adjacent spiral turns of the spiral tube body is bonded together by welding. A plurality of pores is formed in the spiral tube body to reduce the weight of the frame tube and to enhance its shock-absorbing capability. | 06-21-2012 |
20140318663 | TUBULAR BODIES AND METHODS OF FORMING SAME - The present invention provides a tubular article ( | 10-30-2014 |
20150330539 | Tubular Member and Method and Apparatus For Producing a Tubular Member - A method for producing a tubular member is provide and includes the following steps: extruding a first strand having a first side and a second side with an extrusion die, arranging the first strand into a plurality of helical windings, and bonding the first side and the second side. | 11-19-2015 |