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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| Number | Title | Issue Date |
| 7823286 | Method for disposing wick structure in a heat pipe body assembly A wick structure of a heat pipe includes two elongated stripe-like continuous woven meshes and a plurality of fibers. A method for disposing the wick structure includes the steps of: providing a heat pipe body for accommodating the two meshes and the fibers; stackin... | 11/02/2010 |
| 7353863 | Method of surface treating aluminum alloy base body of heat exchanger and heat exchanger produced by the method A method of surface treating an aluminum alloy base body of an heat exchanger which method enables an etching procedure to be carried out uniformly and quickly and a corrosion-resistant chemical conversion coating to be formed, is effected by pretreating the Al heat... | 04/08/2008 |
| 7328509 | Method of operating a weaving mechanism to insert a spacer between the tubes of a heat exchanger A weaving apparatus used to separate the tubes of a heat exchanger so that spacers that hold the tubes apart can be inserted between the tubes to increase thermal efficiency. The weaving apparatus includes a frame assembly and a weaving mechanism contained within th... | 02/12/2008 |
| 7330353 | Modular heat sink fin modules for CPU A modular heat sink and semiconductor chip assembly includes a semiconductor chip, a base plate disposed in a heat conducting relationship with the semiconductor chip and containing a plurality of slots extending through the base plate, a plurality of fins individua... | 02/12/2008 |
| 7290598 | Heat exchange device A heat transfer device having a heat source for collecting waste heat from a heat-generating system, the heat transfer device having fins in which the shape of the sides of the fins is preferably circular according to the general expression | 11/06/2007 |
| 7284325 | Retractable finning tool and method of using An improved tool and method for enhancing the surface of a heat transfer tube are provided. The tool, which can be easily added to existing manufacturing equipment, includes cutting bits that may be retracted with a housing. The cutting bits include a cutting edge t... | 10/23/2007 |
| 7278209 | Method for manufacturing heat sink for use in heat sink fan A method for manufacturing a heat sink for use in a heat sink fan is provided. A heat-sink base portion defining a central axis and a circumferential surface is formed. A plurality of heat-radiating fins is formed on the circumferential surface of the base portion. ... | 10/09/2007 |
| 7249885 | Heat flux measuring device for pressure pipes, method for producing a measuring device, method for monitoring an operating state of a heat exchanger, heat exchanger and method for measuring a heat flux A measuring device for a heat exchanger includes a heat exchanger pressure pipe having a pipe wall with a circumference, and an indentation extending over and deforming a portion of the circumference. At least one thermocouple is disposed eccentrically in the portio... | 07/31/2007 |
| 7243712 | Fin tube assembly for air-cooled condensing system and method of making same A fin tube assembly has a core tube of elongated transverse cross-section having rounded leading and trailing sides, opposite flat faces, and opposite open ends for flow through the tube. A plurality of fins project in opposite directions from finned areas of the op... | 07/17/2007 |
| 7188809 | Deformable clamp employed to stiffen hanger rod Stiffener apparatus for stabilizing a hanger rod includes a clamp having a mechanical fastener extending through openings formed in spaced clamp segments. The clamp is constructed of deformable material so that the clamp segments bend into engagement with the hanger... | 03/13/2007 |
| 7143511 | Method of forming a heat pipe A method for forming a heat pipe is provided comprising coating the interior surface of the vessel with a wicking material and partially saturating the wick with a working fluid. The vessel is then partially evacuated. A portion of the vessel is pinched-off so as to... | 12/05/2006 |
| 7117935 | Support system for tube bundle devices A tube bundle device such as a heat exchanger or condenser which has parallel tubes in a triangular configuration in which tubes are adjacent and spaced from six surrounding tubes. The tubes in the tube bundle have wire spacer/support elements comprising helically w... | 10/10/2006 |
| 7114256 | Cooling device and apparatus and method for making the same A cooling device (10) for heat dissipation for a heat-generating component includes a heat sink (14) and a heat pipe (13). The heat sink attached to the component includes a base (11) and a plurality of fins (12) extending from the... | 10/03/2006 |
| 7086153 | Method and apparatus for manufacturing heat exchanger tube Distortion of the cross-sectional shape of a tube when producing a heat exchanger tube by cutting a continuous tube is prevented by forming cutting grooves in a strip material in advance by an upper and bottom cutter. The two side edges of the strip shaped member wh... | 08/08/2006 |
| 7047639 | Method for manufacturing a heat-dissipating structure of a rectifier A method for manufacturing a heat-dissipating structure of a rectifier combines heat pipes into the heat-dissipating structure of the rectifier to enhance the heat-dissipating efficiency thereof. A metal tube of a heat pipe is has an inlet. A wick structure is forme... | 05/23/2006 |
| 7030486 | High density integrated circuit package architecture This invention relates to a high density architecture for an integrated circuit package (10) in which a plurality of circuit communication wafers (12) are disposed in a stack with a plurality of cooling plates (14) between them, and wherein circ... | 04/18/2006 |
| 7028763 | Cooling arrangement and method with selected surfaces configured to inhibit changes in boiling state Heat transfer in coolant circuits, as in an internal combustion engine for example, can be beneficially enhanced by maintaining the coolant in a nucleate boiling state, but undesirable transitions to a film boiling state are then possible. The disclosed coolant circ... | 04/18/2006 |
| 6988315 | Cooling apparatus having low profile extrusion and method of manufacture therefor A method for removing heat from a heat generating component using a low profile extrusion with a plurality of micro tubes extended there through. The low profile extrusion is placed into thermal connection with heat producing components. A heat transfer fluid remove... | 01/24/2006 |
| 6896977 | Method of brazing aluminum or aluminum alloy materials and aluminum alloy brazing sheet A method of brazing an aluminum or aluminum alloy material, containing brazing an aluminum alloy brazing sheet that has an aluminum or aluminum alloy core material and, being clad on one or both surfaces, a filler alloy layer comprised of an Al—Si-based alloy and ... | 05/24/2005 |
| 6874230 | Method of manufacturing heat exchanger A method of manufacturing a heat exchanger includes processes of: arranging tubes at a predetermined pitch on a set base; inserting fins into spaces each defined between the tubes; compressing the tubes and the fins in the direction of arrangement thereof; mounting ... | 04/05/2005 |
| 6864572 | Base for heat sink A heat sink base (10) includes a rectangular body (11) made of aluminum and a circular core (12) made of copper. The body defines a circular through opening (111). A diameter of the opening is slightly less than a diameter of the core. Th... | 03/08/2005 |
| 6487768 | Heat exchanger manufacturing system Improved plastic heat exchanger production systems are described. The production systems are arranged to extrude plastic tubing, cut the tubing into segments of desired length and convey the tubing to a plurality of aligned tube inserters. Clip strips are... | 12/03/2002 |
| 6397939 | Tube for use in serpentine fin heat exchangers Problems due to fin fall-out in the manufacture of heat exchangers having flattened tubes (14) with interposed serpentine fins (16) are eliminated by providing the exterior sides (22), (24) of the tube (14) with elongated, relatively sharp ridges (36). Th... | 06/04/2002 |
| 6343416 | Method of preparing surfaces of a heat exchanger A method of preparing a heat exchanger provides a first surface(s) for contacting a first fluid and a second surface(s) for contacting a second fluid in order to exchange heat between the first and second fluids. At least one of the first and second surfa... | 02/05/2002 |
| 6269541 | Method of manufacturing a heat exchanger Fins and tubes are brazed by brazing material spread on the inside of bent portions. As the interval between the fins and the tubes does not increase upon melting the brazing material, the tubes and the fins can be easily piled and assembled with each oth... | 08/07/2001 |
| 6209201 | Method of manufacturing a heat exchanging fin To provide a heat exchanging fin capable of preventing cracks from forming in the flares of the collared tube holes, even if the metallic plate section is made of thin and tough material. In the heat exchanging fin, a metallic plate section has a pluralit... | 04/03/2001 |
| 6186222 | Aluminum alloy tube and heat exchanger, and method of metal-spraying a filler alloy There is disclosed an aluminum alloy tube whose outer surface is covered with a filler alloy by metal-spraying, wherein the base material of the tube has an uneven rough surface with the depth of 10 μm or more, and the difference between the highest proj... | 02/13/2001 |
| 6067712 | Heat exchange tube with embossed enhancement There is provided heat exchange tube formed from a ductile metal strip which is formed into a generally circular configuration with the opposing longitudinal edges of the strip welded together. Both surfaces of the strip are enhanced. One surface of the t... | 05/30/2000 |
| 5898995 | Method of manufacture of a primary heat exchanger jacketed by a secondary heat exchanger A composite heat exchanger has an inner, serpentine circuit fluidly isolated from a surrounding outer, parallel flow circuit, allowing two different heat exchange media to be in thermal contact without physical mixing. A series of longer, inner tubes are ... | 05/04/1999 |
| 5881457 | Method of making refrigerant tubes for heat exchangers A method for forming a heat exchanger tube is disclosed. The method includes the steps of forming a pair of identical, asymmetric upper and lower members which and joining them together to form a tube. A plurality of longitudinally extending walls are als... | 03/16/1999 |
| 5870825 | Method of making unitary heat exchanger core A method for making a heat exchanger assembly (10) includes the steps of simultaneously extruding hollow tubes (12) and bridges (14) integrally connecting adjacent tubes (12) through a die; and cutting holes (16) into the bridges (14) to allow airflow thr... | 02/16/1999 |
| 5784776 | Process for producing flat heat exchange tubes A process for producing a flat heat exchange tube having parallel refrigerant passages in its interior and comprising flat upper and lower walls, opposite side walls and a plurality of reinforcing walls connected between the upper and lower walls, extendi... | 07/28/1998 |
| 5656332 | Method of manufacturing a long continuous tube having a coating of brazing powders A long continuous tube, strip or like material has a coating of brazing powders applied and formed thereon. It may be cut to sections of specific length when actually used. A uniform coating of brazing powders is applied in specific quantities and fixed o... | 08/12/1997 |
| 5634270 | Method for making off-set louvered heat exchanger fin A heat exchanger assembly (10) includes a pair of tanks (16, 18) with a plurality of flat-sided fluid tubes (20) extending between the tanks (16, 18). Fins (22) may be located externally between adjacent fluid tubes (20), and may be located internally wit... | 06/03/1997 |
| 5628447 | Method of manufacturing internally grooved tubes for heat exchangers In a method for producing internally grooved tubes for heat exchangers, a smooth metal tape is drawn from a circular supply, a rolling mill provides it with a number of grooves that are parallel to each other and run at an angle of 15° to 45° with respe... | 05/13/1997 |
| 5553377 | Method of making refrigerant tubes for heat exchangers A refrigerant tube for use in heat exchangers comprises a flat aluminum tube having parallel refrigerant passages in its interior and comprising flat upper and lower walls and a plurality of reinforcing walls connected between the upper and lower walls, e... | 09/10/1996 |
| 5309637 | Method of manufacturing a micro-passage plate fin heat exchanger A method of manufacturing a micro-passage heat exchanger includes preparing a substrate of multiple square tubes, configuring multiple layers of the square tubes in a vertical plane, interposing between each layer a braze alloy to form a core, bonding the... | 05/10/1994 |
| 5247734 | Method and apparatus of an improved heat sink A first heat sink member with extension slots and component detailing is cast from a thermally conductive material. Fin members are constructed from a similar, but not necessarily identical, thermally conductive material. The fin members are constructed s... | 09/28/1993 |
| 5088192 | Method of forming a shell and coil heat exchanger The heat exchanger is made up of a shell having a coaxial tubular outer and inner wall with end plates attached thereto to enclose a tubular shell cavity provided with an inlet and outlet for a first fluid. Within the shell cavity is a spiral coil of tubi... | 02/18/1992 |
| 5086836 | Retarding heat tracing system and method of making same A retarding heat tracing system amd method of making same adapted to externally heat a process pipe including a channel member, a heat transfer element, a retarding heat transfer strip made from a retarding heat transfer material, and a plurality of clamp... | 02/11/1992 |
