Did You Know...
...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8074356 | Method for manufacturing aluminum tube and fin heat exchanger using open flame brazing 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 hair... | 12/13/2011 |
| 7996990 | Heat exchanger and method for manufacturing the same There is provided a method of manufacturing a heat exchanger, including a first step of mounting an end part of flat tube to a header, assembling the flat tube and fins, and sealing a part where the header and the end part is attached, and a second step of increasin... | 08/16/2011 |
| 7278473 | Exhaust gas heat exchanger and method for the production thereof The invention relates to an exhaust gas heat exchanger for motor vehicles, comprising a cluster of exhaust pipes (10) which are soldered on the front surface thereof to pipe bottoms, and a housing jacket (3, 3b) which is welded to the pipe botto... | 10/09/2007 |
| 7261089 | Fuel injector nozzle seal A fuel injector for the direct injection of fuel into the combustion chamber of a mixture-compressing internal combustion engine having external ignition includes a valve housing formed by a nozzle body, and a seal which seals the fuel injector from a cylinder head ... | 08/28/2007 |
| 7219827 | Braze end isolation layer for generator armature winding bar and method for applying the isolation layer A brazed joint between an armature winding bar strand package and a hydraulic header clip end fitting including: a plurality of solid strands and a plurality of hollow strands arranged in a tiered array and forming the strand package, the plurality of hollow strands... | 05/22/2007 |
| 7216796 | Crevice corrosion-resistant liquid-cooled armature bar clip-to-strand connection and related method A brazed joint between an armature bar strand package and an end fitting includes a plurality of strands arranged in a tiered array and forming the strand package; a cavity in the end fitting, free ends of the plurality of strands extending through opening in the en... | 05/15/2007 |
| 7213887 | Attachment of head rest guide tube to vehicle seat frame A vehicle seat assembly includes a seat back frame having an aperture extending therethrough, and a head rest guide tube disposed in the aperture. The guide tube has a radially extending swaged portion engaged with the seat back frame for securing the guide tube to ... | 05/08/2007 |
| 7117584 | Heat exchanger tube expanding apparatus A tube expanding apparatus includes mandrels, each mandrel having a billet on a leading end; a reciprocating actuator for supporting rear ends of the mandrels, the reciprocating actuator being supported to reciprocate in an axial direction of hairpin tube straight p... | 10/10/2006 |
| 7096699 | Multiple bladder internal tube expansion and method Method and apparatus for the production of a plurality of uniform expansions of a tube in a plurality of tube supports simultaneously. A plurality of tubes are expanded in apertures of tube supports in a repetitive manner, each tube being expanded into the plurality... | 08/29/2006 |
| 7065995 | Expansion tool for expanding tube ends and pressing device comprising such an expansion tool The invention relates to an expansion tool for expanding tube ends. The expansion tool has an expansion mandrel and a counter-support, said expansion mandrel consisting of a tow-bar and an elastic rubber expansion element surrounding it. The counter-support supports... | 06/27/2006 |
| 7040015 | Tube finning machine and method of use This invention relates to a tube finning machine (10), and in particular to a machine capable of fitting several fins (26) to one or more tubes (26) at the same time, the assembled finned tube being suitable for heat exchange applications. Accor... | 05/09/2006 |
| 7022165 | Tubular hydrogen permeable metal foil membrane and method of fabrication A tubular hydrogen permeable metal membrane and fabrication process comprises obtaining a metal alloy foil having two surfaces, coating the surfaces with a metal or metal alloy catalytic layer to produce a hydrogen permeable metal membrane, sizing the membrane into ... | 04/04/2006 |
| 7021150 | Device and procedure for hydraulic expansion The invention concerns a hydraulic expansion process for tubes. With this process it is possible to increase the number of hydraulic tube expansions that can be implemented using an expansion device. The hydraulic expansion process in accordance with the invention i... | 04/04/2006 |
| 7010856 | Lead wire attachment method, electrode, and spot welder A copper plate 2 is mounted on a titanium electrode element 1 by spot welding, and a lead wire 3a is attached to the copper plate 2 by solder 4. ... | 03/14/2006 |
| 7007695 | Manner of attaching component elements to filtration material such as may be utilized in respiratory masks A component is attached to filtration material by providing the component with a deformable extension member that is preferably integral with the component and that extends from a base portion of the component. The extension member is inserted through an opening pro... | 03/07/2006 |
| 6971177 | Wheel bearing device and method of manufacturing the same A wheel bearing device is provided to prevent loosening of a hub ring and an outer joint ring that are fitted together. An irregular portion treated with hardening is formed on a fit face of the hub ring on an inside periphery of which the outer joint member is fitt... | 12/06/2005 |
| 6959709 | Manner of attaching component elements to filtration material such as may be utilized in respiratory masks A component is attached to filtration material by providing the component with a deformable extension member that is preferably integral with the component and that extends from a base portion of the component. The extension member is inserted through an opening pro... | 11/01/2005 |
| 6928833 | Finned tube for heat exchangers, heat exchanger, process for producing heat exchanger finned tube, and process for fabricating heat exchanger A heat exchanger finned tube 10 for use in fabricating a heat exchanger 1 useful as the evaporator for refrigerators or the like wherein a hydrocarbon refrigerant is used. Two tube insertion holes spaced apart from each other are formed in each of plat... | 08/16/2005 |
| 6857185 | Method for electromagnetically joining tubes to sheets in a tubular heat transfer system A system and method for expanding, joining or securing a plurality of tubes by electromagnetic expansion to a plurality of sheets in a tubular heat transfer system. The system and method involve the automatic sensing and positioning of a electromagnetic coil in oper... | 02/22/2005 |
| 6802366 | Swage method for cooling pipes A method and apparatus are described for inserting a cooling tube into a metal component to remove heat generated at the surface by flowing fluid through the tube, thereby cooling the metal component. A cooling tube is placed into a groove of a metal component havin... | 10/12/2004 |
| 6722009 | Metallic sheet hydroforming method, forming die, and formed part A sheet hydroforming method is disclosed wherein two stacked metallic sheets are clamped between a pair of upper and lower dies 10, 11 and a fluid is introduced and pressurized between mating surfaces of the metallic sheets, causing the metallic sheets to bul... | 04/20/2004 |
| 6575232 | Heat exchanger A flat or a flared tubular end portion devoid of dimples is provided at the end of a tube 11 which is to be inserted into a header with the length, of the flat tubular portion being 1.5 mm or less along the direction of the length of the tube to prevent r... | 06/10/2003 |
| 6513232 | Vertical pipe expander A vertical pipe expander to be used to expand the pipes assembled with fins of finned heat exchangers comprises, on a supporting frame, supports for rods of pipe expanding cones, performing vertical translational motion and arranged above a seat for a hea... | 02/04/2003 |
| 6357114 | Hydraulic expansion pre-straining of heat exchanger tubing A method of hydraulically prestraining the tubes of a once-through steam generator by welding the tubes to their respective tubesheets prior to the application of hydraulic expansion to produce tensile stresses which shorten the tubes an equal and predete... | 03/19/2002 |
| 6286213 | Method of securing intake tubes in intake manifold A method of securing intake tubes in an intake manifold is provided in which leakage of brazing material from the joint between the intake tubes and the intake tube mounting rings is prevented. For securing each intake tube in the intake manifold, the int... | 09/11/2001 |
| 6178636 | Heat exchanger tube to header swaging process A method for making a heat exchanger assembly (10) includes inserting tubes (20) through fin holes (32) in heat exchanger fins (30) and headers (40, 42) to form a bundle (50), and expanding the tubes (20) forming an interference fit with the heat exchange... | 01/30/2001 |
| 6173494 | Method of making a valve seat A valve seat for a ball valve, especially a fuel-injection valve for an internal-combustion engine is finely ground to form a trough in the conically-ground seat with a circular arc cross section in planes of the axis and of a depth to eliminate shape var... | 01/16/2001 |
| 6163955 | Tube expanding machine A machine includes a casing disposed in a housing for receiving one or more tubes and a number of fins engaged around the tubes. A frame is slidably received in the housing, and one or more rods are secured to the frame and moved to engage into and to exp... | 12/26/2000 |
| 6138747 | Heat exchanger tube to header swaging process A method for making a heat exchanger assembly (10) includes inserting tubes (20) through fin holes (32) in heat exchanger fins (30) and headers (40, 42) to form a bundle (50), and expanding the tubes (20) forming an interference fit with the heat exchange... | 10/31/2000 |
| 6094816 | Method of making a dimensionally stable tube type plastic heat exchangers Plastic tube-type heat exchanger structures are made with partially crystallized partially aromatic polyamides of high glass transition temperature. The structures are then annealed to further crystallize the polyamides, causing shrinkage and building up ... | 08/01/2000 |
| 6092285 | Process and apparatus for producing a linkage of an air/fuel ratio detector holder to an exhaust pipe A process and a device produces a linkage of a hollow cylindrical air/fuel ratio detector holder to an opening for the impingement of the air/fuel ratio detector, which is fastened into the holder, to an exhaust pipe equipped with exhaust gas. A desired f... | 07/25/2000 |
| 6065664 | Method of installing heat pipes using internal vapor pressure The disclosure is for a method of installing a heat pipe within another structure. A completely processed heat pipe is coated with solder and inserted into a cylindrical hole within the structure with sliding clearance. The casing of the heat pipe is then... | 05/23/2000 |
| 6044554 | Method of assembly of a heat exchanger with oval or oblong tubes A heat exchanger, especially a heating or cooling radiator for a motor vehicle, has a tube bundle consisting of oval or oblong tubes which extend through a matrix of cooling fins. End portions of the tubes are introduced into holes in a header plate, with... | 04/04/2000 |
| 5916321 | Rod driver gear for a tubing expander A rod driver gear for a tubing expander is operable to drive a rod having a circumferentially extending outer surface with a plurality of grooves extending traversely across a longitudinal axis of the rod. The rod driver gear includes an annular body rota... | 06/29/1999 |
| 5901443 | Method of making a manifold for an automotive heat exchanger There is disclosed herein a method for forming a manifold for a heat exchanger. The method includes the steps of the forming a generally planar sheet of material into a generally cylindrical member having a seam along the longitudinal length thereof. The ... | 05/11/1999 |
| 5901784 | Heat exchanger with oval or oblong tubes, and a method of assembly of such a heat exchanger A heat exchanger, especially a heating or cooling radiator for a motor vehicle, has a tube bundle consisting of oval or oblong tubes which extend through a matrix of cooling fins. End portions of the tubes are introduced into holes in a header plate, with... | 05/11/1999 |
| 5896659 | Continuous heat exchanger forming method A method and a device for continuously forming a heat exchanger that has a helically wound fin tube coil formed by a plurality of wraps. The device includes a rotationally driven mandrel with a central axis and a plurality of forming corners equiangularly... | 04/27/1999 |
| 5765284 | Method for constructing heat exchangers using fluidic expansion A method of manufacturing a heat exchanger using fluidic expansion, the heat exchanger having tubing sections interconnected to form at least one circuit for transporting a first heat transfer fluid and conductive fins secured to the circuit for increasin... | 06/16/1998 |
| 5761810 | Method for installing baffle in a tubular member A method and tool for installing a baffle in a tubular member, such as a heat exchanger manifold. The method and tool are adapted to use a baffle having a closed base that acts to obstruct the flow of a fluid within the tubular member, and further having ... | 06/09/1998 |
| 5752311 | Method for expanding tubular members Method for expanding tubular members, such as U-shaped heat transfer tubes having ends thereof located in the confined space adjacent the curved sides of the bowl-shaped lower plenum of a typical nuclear steam generator. The apparatus includes an elongate... | 05/19/1998 |
