Class 29/890.037 - Tube wound about tube

Subclass of Class 29 - Metal working
Definition: Process wherein the heat exchanger or boiler made comprises
No. of patents: 27
Last issue date: 08/31/2010

Number	Title	Issue Date
7784184	Involute foil regenerator method A regenerator having a plurality of involute foils disposed in an annular gap between an inner cylindrical tube and an outer cylindrical tube. The involute shape of the foils provides uniform spacing throughout the entire regenerator and substantial surface area for...	08/31/2010
7308932	Exchange apparatus An exchange apparatus comprised of hollow thermoplastic tubes infusion bonded into a thermoplastic material is disclosed. In a preferred embodiment the hollow tubes are shaped by plaiting the tubes into cords and then thermally annealing the cords to set the crests ...	12/18/2007
7129731	Heat pipe with chilled liquid condenser system for burn-in testing A burn-in testing cooling system includes a heat pipe having a tubular body. A capillary wick is disposed on an evaporator portion of the tubular body, and a base seals off the evaporator portion. The base is sized and shaped so as to be releasably thermally engaged...	10/31/2006
6922889	Shifting device for manufacturing continuous terminals A shifting device for shifting two rows of continuous terminals includes a body and a shaft. The body is formed with a hole and an inlet and an outlet both communicating with the hole. A direction into the inlet and a direction out of the outlet are the same. The in...	08/02/2005
6912785	Flexible heat pipe structure and associated methods for dissipating heat in electronic apparatus A notebook computer has a base housing with a heat-generating microprocessor therein, and a lid housing pivotally connected to the base housing. Operating heat from the microprocessor is transferred to the lid housing, for dissipation therefrom, via a specially desi...	07/05/2005
6052898	Method of winding fluid heater coils A method of winding a fluid carrying coil for compact fluid heater utilizing dual lengths of metallic tubing wound in a bifilar manner to establish fluid flow internal of each tubing length such that when terminated from the coil outer periphery flow in t...	04/25/2000
5238058	Spiral flighted double walled heat exchanger A heat transfer coil and method of manufacture where a second piece of tubing is wound around a first piece of tubing while the first piece is straight, where the first piece of tubing is then formed to define the overall coil shape, and then the first an...	08/24/1993
5177865	Method for making heat exchanger having at least two collecting pipes A heat exchanger has two collecting pipes and a streamlined-section tube matrix connected with these two pipes. The collecting pipes comprise several thin sheet metal shells connected with one another which permits simplified and higher speed manufacture ...	01/12/1993
5167275	Heat exchanger tube with turbulator A heat exchange tube is provided and includes a turbulator therein incorporating a tubular center core and a spiral wrap about the core. The turbulator is first inserted within the heat exchange tube with minimum clearance between the spiral wrap and the ...	12/01/1992
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
5065817	Auger type ice flaking machine with enhanced heat transfer capacity evaporator/freezing section An auger type ice flaking machine has an evaporator section defined in part by a vertically oriented flaker barrel with closed upper and lower ends, and a knurled longitudinally intermediate exterior side surface positioned within an annular hollow jacket...	11/19/1991
4984360	Method of fabricating flaker evaporators by simultaneously deforming while coiling tube A straight axial length of round metal tube is deformed such that the tube cross-section is D-shaped and coiled into a helix, a coil mandrel and wheel mandrel simultaneously drawing and deforming the tube cross-section without kinking. The interiorly faci...	01/15/1991
4636160	Device for tightening a coil on a cylindrical body A device for tightening a coil on a cylindrical body. The device has a first anchor for connecting one end of the heater coil to the cylindrical body, and a second anchor for connecting the second end of the coil to a rotatable ring on the cylindrical whi...	01/13/1987
4633942	Slit fin coil and the method of making coils A slit fin heat exchanger is formed by wrapping slit fin tubing around a pair of mandrels having expanded metal cylinders thereon into a flat coil having two spaced rows of tubing. The flat coil containing the expanded metal cylinders is located on mandre...	01/06/1987
4633941	Slit fin coil and the method of making coils A slit fin heat exchanger is formed by wrapping slit fin tubing into a flat coil having two spaced rows of tubing. The flat coil is located on mandrels which are rotatable about spaced parallel axes with the mandrels and axes initially being in the same p...	01/06/1987
4451960	Method of producing multiple coil, multiple tube heat exchanger A method of producing multiple coil, multiple tube heat exchanger from circular tubes, in which alternating turns in each coil have a warmer liquid and other turns a cooler liquid, by coating the outside of each coil with a heat conductive mastic and wind...	06/05/1984
4447942	Helical steam generator tube support A tube support structure for a helically coiled fluid heat exchanger including a plurality of support strips interconnected by a plurality of support members. Two tubes are nested between support members against a support strip, a spring plate is placed o...	05/15/1984
4434539	Method of manufacturing a heat exchanger A heat exchanger including a first piece of heat conductive tubing wound in helical configuration defining a plurality of first helical flights having an outboard portion thereon and a second piece of heat conductive tubing wound in a helical configuratio...	03/06/1984
4424624	Multiple coil heat exchanger A compact multiple coil heat exchanger having a high heat transfer density is provided to include at least an inner coil formed from a continuous tube into a plurality of contiguous turns about a common axis in a spiral arrangement and having a pitch in o...	01/10/1984
4397068	Apparatus and method for securing tube supports in a coil bundle Apparatus and a method for inserting tube supports into a loose coil bundle are disclosed. A tube support insertion machine is disclosed wherein a series of spaced support arms are located within a cylindrical coil bundle. A drive is provided for forcing ...	08/09/1983
4317268	Process for making a heater exchanger A heat exchanger having an outer shell which is long as compared with its diameter and having a helical double-walled finned volute member which is wound to a small diameter around a core member, the proportions being such that the fins on the double-wall...	03/02/1982
4295255	Expanded cooling jacket assembly A method of manufacturing a cooling jacket (10) is provided whereby a relatively thin-walled outer jacket formed as a cylinder (14') is press-fit over an inner casing (12) and the outer jacket (14') is then electron-beam welded to the inner casing (12) to...	10/20/1981
4155158	Apparatus for winding tubes around a core A method and a device for winding tubes around a core, for example in the manufacture of heat-exchangers, the device including a single horizontal platform concentric with the core and supporting a plurality of winder assemblies. The platform is movable b...	05/22/1979
4112569	Method of manufacturing a heat exchanger A method is disclosed for manufacturing a tube coil useful as a heat exchanger wherein the tube coil comprises a plurality of slightly spaced, parallel tubes wound onto a supporting core. The tubes are wound at an angle to the radial plane of the support....	09/12/1978
4105389	Method of winding a tube coil, and an arrangement for performing said method A heat exchanger coil is formed by winding a plurality of flexible tubes to form a coil. The turns of the coil are separated in the axial direction of the coil by means of radially disposed separator elements. The turns of the coil are separated in the ra...	08/08/1978
4054980	Process for manufacturing modular elements and a tube nest for heat exchangers A process for making modular element for heat exchangers with thermoplastic tubes consisting of a plurality of tubes connected to one another by spacers located at intervals allowing the mutual tape-like positioning of the tubes. Also a process for making...	10/25/1977
3968554	Heat exchanger A heat exchanger having a tubular core around which a helical wire coil is wound, the helix being provided with a reinforcing edge capping wire....	07/13/1976

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Class 29/890.037 - Tube wound about tube