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| Number | Title | Issue Date |
| 7963318 | Finned tube for the thermal cracking of hydrocarbons, and process for producing a finned tube A finned tube for the thermal cracking of hydrocarbons in the presence of steam is defined by a tube axis and includes a plurality of inner fins. The fins are inclined at an angle of 20° to 40° in relation to the tube axis and have a flank angle of 16° to 25°. | 06/21/2011 |
| 7717166 | Fin stock for a heat exchanger and a heat exchanger The invention relates to a fin stock material having aluminum, where the material also has a tensile strength of between approximately 14,000 and approximately 26,000 psi, an elongation of less than 30%, and a hardness of between approximately 50 and approximately 7... | 05/18/2010 |
| 7372002 | Fluid heating device and cleaning device using the same A washing water inlet for receiving washing water is provided on an upper surface at one end of a case main body in a fluid heating device, and a washing water outlet for feeding heated washing water to a pump is provided on an upper surface at the other end of the ... | 05/13/2008 |
| 7367380 | Coil type turn-fin condenser Disclosed herein is a turn-fin condenser. The turn-fin condenser employs a turn-fin tube adhesively wound in a spiral shape around an outer surface of the tube in which refrigerant flows. The condenser comprises a coil type turn-fin tube 10 wound in a coil sh... | 05/06/2008 |
| 7353658 | Systems and methods for freezing, storing, transporting, and thawing biopharmacuetical material A system for freezing, thawing, transporting, and storing a biopharmaceutical material, which includes a container, a supporting structure, a temperature control unit, and a transportation cart. The container is adapted to receive the biopharmaceutical material ther... | 04/08/2008 |
| 7334609 | Flexible tubular device A flexible tubular device that includes a metal wall in which are formed corrugated convolutions that define corrugated outside and inside surfaces of the device. The convolutions are perpendicular to a longitudinal axis of the device, and each convolution has oppos... | 02/26/2008 |
| 7325593 | Radiating fin and radiating method using the radiating fin It is an object of the present invention to provide an inexpensive heat radiating fin having a high cooling effect. A coating metal layer consisting of a metallic material with an ionization tendency larger than that of silver is coated on a surface of a heat radiat... | 02/05/2008 |
| 7322403 | Heat exchanger with modified tube surface feature A heat exchanger includes a shell that has an inner chamber defined by an inside wall surface. A tube stack disposed within the inner chamber and includes a plurality of flat elongated tubes that define a first fluid flow path. The tubes each include a wire that is ... | 01/29/2008 |
| 7314067 | Design and manufacturing method for multi-material tube structures The present invention provides an improved tubular structure which uses the properties of different materials, such as stiffness, strength, and density are exploited in a manner which combines the most attractive characteristics of existing metal and composite tubes... | 01/01/2008 |
| 7311137 | Heat transfer tube including enhanced heat transfer surfaces The invention relates to enhanced heat transfer surfaces and methods and tools for making enhanced heat transfer surface. Certain embodiments include a boiling surface that include a plurality of primary grooves, protrusions and secondary grooves to form boiling cav... | 12/25/2007 |
| 7287580 | Heat exchanger A heat exchanger having an active surface over which a fluid flows to affect an exchange of heat between the active surface and the fluid. In some embodiments, the active surface includes a logarithmic spiral wherein the radius of the logarithmic spiral measured at ... | 10/30/2007 |
| 7267166 | Grooved tubes for heat exchangers that use a single-phase fluid Grooved metal tubes, with a groove-bottom thickness Tf and outside diameter De, internally grooved with N helical ribs having an apex angle α, height H, base width LN, and helix angle β, two consecutive ribs being separated by a groove, gener... | 09/11/2007 |
| 7254964 | Heat transfer tubes, including methods of fabrication and use thereof An improved heat transfer tube, an improved method of formation and an improved use of such a heat transfer tube is disclosed. The heat transfer tube includes an outer surface with a plurality of radially outwardly extending helical fins, the fins being grooved to d... | 08/14/2007 |
| 7243500 | Heat exchanger and temperature control unit Systems and methods for heat exchange in accordance with the invention define adequately long-interchange distances for two fluids by wrapping a tube containing a first fluid about the wall of an inner cylindrical tank, within a gap formed with a second concentric t... | 07/17/2007 |
| 7207354 | Design and manufacturing method for multi-material tube structures The present invention provides an improved tubular structure which uses the properties of different materials, such as stiffness, strength, and density are exploited in a manner which combines the most attractive characteristics of existing metal and composite tubes... | 04/24/2007 |
| 7197808 | Process for forming a groove in a friction layer Device for forming of at least one groove (92, 93, 94, 95, 96, 97, 98) in a friction layer (91) of a covered disk (90) for a force transmission aggregate, in particular for a disk clutch, with a rolling device (1, 11, 21, 31) with at leas... | 04/03/2007 |
| 7178361 | Heat transfer tubes, including methods of fabrication and use thereof The present invention discloses an improved heat transfer tube, an improved method of formation, and an improved use of such heat transfer tube. The present invention discloses a boiling tube for a refrigerant evaporator that provides at least one dual cavity nuclea... | 02/20/2007 |
| 7178586 | Flattened tube cold plate for liquid cooling electrical components A cold plate and a method of forming the cold plate are provided that efficiently and cost effectively cools electrical components. The cold plate includes a flattened tube formed from a circular extruded tube to have a top surface and a bottom surface that are subs... | 02/20/2007 |
| 7137261 | Systems and methods for freezing, mixing and thawing biopharmaceutical material A system for controlled freezing, storing and thawing of a biopharmaceutical material includes a cavity for receiving a container for holding the biopharmaceutical material. Further included are at least a pair of opposed surfaces facing the biopharmaceutical materi... | 11/21/2006 |
| 7131276 | Pulse tube refrigerator The present invention relates to pulse tube refrigerators for recondensing cryogenic liquids. In particular, the present invention relates to the same for magnetic resonance imaging systems. In many cryogenic applications components, e.g. superconducting coils for m... | 11/07/2006 |
| 7128139 | External ribbed furnace tubes In a radiant heating box there is a convection current which flows over the surface of tubes in the box. Adding ribs to the external surface of vertical tubes provides an enhancement to the heat transfer by convection and increases the heat transfer to the tubes. | 10/31/2006 |
| 7121328 | Condenser A refrigerator condenser includes a spiraled tube and wire member construction to form a substantially longitudinal and rounded passage between a first end and a second end. The second end of the condenser is closed, thereby preventing longitudinal airflow through t... | 10/17/2006 |
| 7104074 | Systems and methods for freezing, storing, transporting and thawing biopharmaceutical material A system for freezing, thawing, transporting, and storing a biopharmaceutical material, which includes a container, a supporting structure, a temperature control unit, and a transportation cart. The container is adapted to receive the biopharmaceutical material ther... | 09/12/2006 |
| 7096931 | Increased heat exchange in two or three phase slurry Ribbed heat exchange tubes in which the aspect ratio of the ribs is less than 5, provide greater indirect heat exchange than conventional heat exchange tubes with or without fins, when used in a slurry comprising a liquid phase, in which is dispersed flowing gas bub... | 08/29/2006 |
| 7096934 | Heat exchanger A heat exchanger having an active surface over which a fluid flows to affect an exchange of heat between the active surface and the fluid, the active surface having a curvature which conforms substantially with at least one logarithmic curve conforming to the Golden... | 08/29/2006 |
| 7093650 | Heat conduction pipe externally covered with fin member It is an object of this invention to obtain a heat conduction pipe superior in corrosion resistance as well as heat exchange efficiency between fluid flowing respectively through an inside and an outside for great heat radiation property and endothermic characterist... | 08/22/2006 |
| 7080634 | EGR cooler An EGR cooler has tubes and a shell for enclosing the tubes. Cooling water is supplied into and discharged from the shell and exhaust gas from a diesel engine is guided into each of the tubes so as to conduct heat exchange of the exhaust gas with the cooling water. ... | 07/25/2006 |
| 7048043 | Reversible grooved tubes for heat exchangers Grooved metal tubes (1), of outer diameter De, the tubes being grooved internally with N helical ribs (2) of an apex angle α, height H, base width LN and helical angle β, two consecutive ribs being separated by a flat-bottomed groove (3... | 05/23/2006 |
| 7044211 | Method of forming heat exchanger tubing and tubing formed thereby A method of forming tubing with integral fins oriented parallel to its length, and to a heat exchanger tube produced by such a method. The invention involves extruding a tube so that the tube has at least one internal longitudinal passage, an external surface having... | 05/16/2006 |
| 6996995 | Systems and methods for freezing and storing biopharmaceutical material The present invention provides a system for freezing, thawing, and storing biopharmaceutical materials which includes a flexible container, a conduit, and a temperature control unit. The flexible container is adapted to receive a biopharmaceutical material therein f... | 02/14/2006 |
| 6964296 | Heat exchanger Heat exchange inefficiencies found in round tube plate fin heat exchangers are eliminated in an aluminum heat exchanger that includes first and second headers (20), (22) and at least one flattened tube (24), (70) extending between the hea... | 11/15/2005 |
| 6945056 | Systems and methods for freezing, mixing and thawing biopharmaceutical material A system for controlled freezing, storing and thawing of a biopharmaceutical material includes a cavity for receiving a container for holding the biopharmaceutical material. Further included are at least a pair of opposed surfaces facing the biopharmaceutical materi... | 09/20/2005 |
| 6929058 | Cold plate with vortex generator The present invention discloses a cold plate with vortex generator for fluid going through defined an inlet and an outlet according to the flowing directions of the fluid, comprising: a base having a groove, one end of the groove is connected to the inlet and anothe... | 08/16/2005 |
| 6913073 | Heat transfer tube and a method of fabrication thereof A metallic heat transfer tube, in particular for the evaporation of liquids from pure substances or mixtures on the outside of the tube. Fins are integrally formed on the outside of the tube. Recesses are arranged in the area of the base of the primary grooves and e... | 07/05/2005 |
| 6913074 | Method of making an internal grooved tube A method of manufacturing an internal grooved tube according to the present invention includes the steps of inserting a grooved plug into a blank tube rotatably, and then pressing the blank tube against the outside surface of the grooved tube with several balls revo... | 07/05/2005 |
| 6904779 | Method of manufacturing a heat exchanger tube with parallel fins A method of forming a finned tube in which the fins are planar, paralleled and extend radially to the tube longitudinal axis, including the steps of positioning at least one rotating forming roll against the tube exterior surface, the forming roll being spaced from ... | 06/14/2005 |
| 6904768 | Absorption-type air conditioner system An absorption-type air conditioner system using lithium bromide solution as absorbent is provided, which has a small volume and compact structure. The system includes upper vessel 26, lower vessel 27, cooling heat exchanger 10, self-induced air ... | 06/14/2005 |
| 6883597 | Heat transfer tube with grooved inner surface An improved heat transfer tube and a method of formation thereof. The inner surface of the tube has a primary set of fins and an intermediate sets of fins positioned in the areas between the primary fins and at an angle relative to the primary fins. While intermedia... | 04/26/2005 |
| 6872070 | U-tube diffusion flame burner assembly having unique flame stabilization A U-tube diffusion flame burner assembly having improved flame stabilization with no undesirable acoustic effects. The burners are axial units comprised of flame holders and combustors. The flame holders includes secondary air tubes to support the flow of secondary ... | 03/29/2005 |
| 6843273 | Gilled pipe The invention relates to a method for producing gilled metal pipes. According to the method, at least one continuous, gill-forming strip is applied to a rotating pipe body at a tangent and unwound onto the pipe body in an approximately helical line. The side of the ... | 01/18/2005 |
