Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Application No. | Application Title | Issue Date |
| 20120018028 | HIGH STRENGTH STEEL PIPE FOR LOW-TEMPERATURE USAGE HAVING EXCELLENT BUCKLING RESISTANCE AND TOUGHNESS OF WELDED HEAT AFFECTED ZONE AND METHOD FOR PRODUCING THE SAME An APIX100-grade high strength steel pipe includes a base material containing, in mass percentage, C: more than 0.03% and 0.08% or less, Si: 0.01% to 0.5%, Mn: 1.5% to 3.0%, P: 0.015% or less, S: 0.005% or less, Al: 0.01% to 0.08%, Nb: 0.005% to 0.025%, Ti: 0.005% to 0.... | 01/26/2012 |
| 20110297270 | TECHNIQUE FOR APPLYING PROTECTIVE COVERING TO PIPES AND TUBES The manufacture of clad tubes (30) is described. Tube (10) intended to line the walls of a combustion chamber is made of a high strength material to contain the high-pressure steam created. However, these tubes (10) are typically not corrosion/erosi... | 12/08/2011 |
| 20110041946 | METHOD FOR THE PRODUCTION OF A HIGH-PRESSURE ACCUMULATOR PIPE OF STEEL FOR FUEL INJECTION SYSTEMS AND HIGH-PRESSURE ACCUMULATOR PIPE PRODUCED ACCORDING TO THIS METHOD In a method of making a high-pressure accumulator pipe as composite pipe of steel for pressures of up to 1800 bar and above with high static strength and fatigue strength for fuel injection systems with common rail systems for internal combustion engines, a first inner ... | 02/24/2011 |
| 20100288391 | EXHAUST SYSTEM WITH TAILORED WALL THICKNESS A tube for an exhaust system includes, an add-on part that is firmly connected with the tube by a brazing seam.... | 11/18/2010 |
| 20100269945 | METHOD OF AND APPARATUS FOR CONTINUOUSLY PRODUCING A TWIN-WALL PIPE COMPRISING PIPE SOCKET AND TWIN-WALL PIPE A twin-wall pipe comprises an internal pipe and an external pipe. The external pipe is corrugated, having elevations and troughs. The twin-wall pipe is further provided with a socket. In a transition portion towards the twin-wall pipe and the socket, provision is made f... | 10/28/2010 |
| 20100206420 | FLOW METER FOR MULTIPHASE FLUIDS There is described a flow pipe (10) of metal for use in a flow meter for fluids, particularly multiphase fluids. The flow pipe has a main run (7) and one or more laterally extending channels (t) of small diameter relative to the main run. The internal surf... | 08/19/2010 |
| 20100065141 | TUBING AND METHOD FOR MANUFACTURE An apparatus for conveying fluid comprising a first tube and a second tube. The first tube has a first end and a second end, an inner wall and an outer wall. The inner wall defines a passage for fluid and an outer wall has at least one first receiving section for receiv... | 03/18/2010 |
| 20100059132 | MULTIPLE LAYER PIPE Abrasion resistant polymer pipe and a process for the production thereof. The pipe comprises a first, abrasion resistant inner layer (1) and a second, structural layer (2), which is placed on the outer side of the inner layer. The first and the second laye... | 03/11/2010 |
| 20090308481 | Cu/Al COMPOSITE PIPE AND A MANUFACTURING METHOD THEREOF A Cu/Al composite pipe and a manufacturing method thereof are disclosed. The inner layer of the pipe is Cu, and the outer layer is Al. The combinative layer is formed between the two layers due to mutual diffusion of Cu and Al. The raw composite pipe is rolled with sing... | 12/17/2009 |
| 20090255656 | Brazed Pipe and Method of Manufacturing the Same A method of manufacturing a brazed pipe comprises steps A to D. In the step A, on an upper surface of the right-hand side edge portion of a material plate 20 having a brazing material layer over opposite surfaces thereof, a first slant surface 21 is formed... | 10/15/2009 |
| 20090142138 | Pipe Structure and Methods of Laying and Use of a Pipeline Including Such a Pipe Structure A pipe structure suitable for being laid in the sea comprises an inner pipe (2) for conveying fluid to be transported along the pipe structure and an outer pipe (3) around the inner pipe and supporting the inner pipe with space between the inner and outer ... | 06/04/2009 |
| 20080257008 | High Strength Welded Steel Tube Superior in Hydrogen Embrittlement Cracking Resistance of Weld Metal and Method of Production of Same The present invention provides a high strength welded steel pipe superior in weld zone embrittlement crack characteristics and a method of production of the same, that is, a method of production of a welded steel pipe superior in hydrogen embrittlement cracking resistan... | 10/23/2008 |
| 20080190508 | Tubular Bodies and Methods of Forming Same A tubular body comprises an inner hollow core and an outer casing of one or more strips of self mechanically inter-engaging helically wound material having a higher yield strength than that of the core material. Also provided is a method of forming the tubular body comp... | 08/14/2008 |
| 20080041482 | METAL TUBE ARRANGEMENT WITH INNER TUBE AND OUTER TUBE The invention relates to a metal tube arrangement (1) for exhaust pipes of motor vehicles, which typically includes an inner tube (10) with hook or interlock connection as well as a bellows-like an outer tube (20). The inner tube (10) and the... | 02/21/2008 |
| 20070289655 | High-strength welded steel pipe A high-strength welded steel pipe having a pipe base metal with a tensile strength of at least 760 MPa and which prevents the occurrence of transverse cracks in weld metal without carrying out preheating or postheating has a seam weld having weld metal with a tensile st... | 12/20/2007 |
| 20070256752 | Laying pipe A laying pipe (1) for a laying head for winding rounded rods comprises a first external pipe (5) with a first rectilinear section (2) and a second spiral section (3). A second internal pipe (10) in a single piece, with external diamete... | 11/08/2007 |
| 20050247364 | Laying pipe A laying pipe (1) for a laying head for winding rounded rods comprises a first external pipe (5) with a first rectilinear section (2) and a second spiral section (3). A second internal pipe (10) in a singile piece, with external diamet... | 11/10/2005 |
| 20050224127 | Compound pipe A compound pipe for conveying fluid comprising an inner pipe positioned within an outer pipe such that the walls of the inner pipe and outer pipe define a gap. The compound pipe further including an insulating material for insulating the inner pipe from the outer pipe, ... | 10/13/2005 |
| 20050217747 | Thermoplastic pipe and liners Thermoplastic pipe and liners utilizing a barrier layer between two thermoplastic layers useful in preventing diffusion of certain gases across the barrier layer. The thermoplastic pipe and liners are useful in the transportation of corrosive gases and fluids and in pro... | 10/06/2005 |
| 20050217746 | Multi-layer tube A multi-layer tube (1) which comprises a base tube (3) and a coating layer (2) laminated on the inner surface of the base tube (3). The base tube (3) is made of a fluororubber type thermoplastic elastomer composed of rubber phase and a... | 10/06/2005 |
| 20050166987 | Clad pipe A clad pipe includes an external layer and a coating layer made of Ni base anticorrosion alloy. Both end portion areas of the coating layer are formed by a build-up welded layer (Ni base alloy of composition 1) on the inner surface of the external layer. Other ar... | 08/04/2005 |
| 20050058851 | Composite tube for ethylene pyrolysis furnace and methods of manufacture and joining same A process for making a composite tube uniquely suited for use in ethylene pyrolysis furnaces wherein the tube comprises an outer shell made from a wrought or cast Fe—Ni—Cr heat resistant alloy and an inner core made from INCOLOY® alloy MA956 powder. The outer shell... | 03/17/2005 |
