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Class 219/643 - Tube (i.e., pipe)


Subclass of Class 219 - Electric heating
Definition: Subject matter wherein the heating is applied to a hollow
No. of patents: 65
Last issue date: 09/13/2011


1    
NumberTitleIssue Date
8017892Apparatus and methods for synthesis of large size batches of carbon nanostructures
An apparatus and method for synthesizing nanostructures. In one embodiment, the apparatus includes a reactor having a reaction zone and a conductive susceptor positioned in the reaction zone. The method includes the steps of transporting a gas mixture having an aero...
09/13/2011
7935915Induction heating apparatus for heat treating a section of pipe
A heating apparatus for heating a pipe prior to performing a welding operation, an interpass welding operation, or a hydrogen bake-out operation is provided. The heating apparatus comprises at least one heating collar placed on one side of a pipe weld joint and a co...
05/03/2011
7410611In-line method and apparatus to prevent fouling of heat exchangers
The present invention relates to a method and apparatus for the prevention of fouling of process streams by the application of electric charge on process components. The electric charge may be attractive or repulsive to the foulants, they may be constant or variable...
08/12/2008
7326897Clip on tubing welder
A clip on welder includes two pairs of opposed grippers defined by pivotally attached upper and lower frames for latching the welder to heat weldable material, such as a length of tubing, upon actuation of a start button by an operator; thereafter, the welder operat...
02/05/2008
7317177Electric induction heat treatment of an end of tubular material
A magnetic flux concentrator is used to control the end heating of a tubular material in an electric induction heat treatment process. The magnetic flux concentrator may consist of fixed elements, or a combination of fixed and moveable elements to accommodate end he...
01/08/2008
7279663Fixing device using induction heating and method for producing same
A fixing device includes a heating roller which is made of a magnetic metal, a coil which is made of a plurality of twisted wires, an exciting circuit which applies a high-frequency current to the coil, and a core which is made of a heat resistant resin and is arran...
10/09/2007
7235209Apparatus for heat treatment of structural body parts in the automobile industry
Apparatus for heat-treating an elongate structural body part made from a blank compressed while being soft or from steel strip of hardenable 22 Mn B5 mod. steel sheet with a thickness of 1 mm to 3 mm, includes an apparatus for positioning the structural body part in...
06/26/2007
7211776Method for unattended sealing of tubing
A clip on welder includes two pairs of opposed grippers defined by pivotally attached upper and lower frames for latching the welder to heat weldable material, such as a length of tubing, upon actuation of a start button by an operator; thereafter, the welder operat...
05/01/2007
7192551Inductive heating process control of continuous cast metallic sheets
An apparatus for rolling of a powder metallurgical metallic workpiece is provided having a feeding device, a first induction heating apparatus in operable communication with a first RF generator and at least a first hot rolling mill. A process control device monitor...
03/20/2007
7151243Method for welding material with a clip on welder
A clip on welder includes two pairs of opposed grippers defined by pivotally attached upper and lower frames for latching the welder to heat weldable material, such as a length of tubing, upon actuation of a start button by an operator; thereafter, the welder operat...
12/19/2006
7141768Fastening device
A device for fastening surfaces together in an effective, efficient, and preferably reversible bond is disclosed. This device is particularly useful in the construction industry for fastening roll goods, such as wall coverings, or mill work, such as moldings, to sur...
11/28/2006
7117707Apparatus and method for thermomechanically forming an aluminide part of a workpiece
A method of thermomechanically forming an aluminide part of a workpiece resistively heats at least a portion of the aluminide part, plastically deforms the heated portion of the aluminide part to a predetermined shape by applying pressure to the aluminide part posit...
10/10/2006
7115127Methods and apparatus for hemostasis following arterial catheterization
A method for accelerating hemostasis of an artery having a puncture after arterial catheterization, the catheterization using a catheter introducer, the method including the steps of inserting into an artery a catheter introducer prior to arterial catheterization, f...
10/03/2006
7084382Clip on welder for plastic material
A clip on welder includes two pairs of opposed grippers defined by pivotally attached upper and lower frames for latching the welder to heat weldable material, such as a length of tubing, upon actuation of a start button by an operator; thereafter, the welder operat...
08/01/2006
7060951Apparatus for the clamping of a rotary tool in a tool holder
To set the length of a rotary tool (1a), to be thermally shrunk in place in a tool holder (7a), by means of an inductive heating device (15a), a setting device is provided with a positioning holder (61) for the rotary...
06/13/2006
7026592Clip on thermal welder
A clip on welder includes two pairs of opposed grippers defined by pivotally attached upper and lower frames for latching the welder to heat weldable material, such as a length of tubing, upon actuation of a start button by an operator; thereafter, the welder operat...
04/11/2006
7012227Method for applying or repairing a coating on a substrate by inductive heating
A method of applying or repairing a coating on a substrate by inductive heating. A susceptor element is applied on the coating and the element and the substrate are inductively energized to cause the substrate and the coating to be heated. The susceptor element is r...
03/14/2006
6998349System, method and apparatus for automatic control of an RF generator for maximum efficiency
A system and method of generating RF includes a supply voltage source, an oscillator, an output amplifier, a load network, a peak voltage detector and a comparator circuit. The oscillator has a control signal input and an RF signal output. The output amplifier is co...
02/14/2006
6979385Method and facility for separating and recovering steel pipe and covering resin in resin-covered steel pipe
There are provided a method and a facility for separating and recovering a steel pipe and a covering resin in a resin-covered steel pipe, which do not produce cuttings of the steel pipe and which make it possible to continuously operate the facility. The method comp...
12/27/2005
6867396Apparatus for inductive heating of a tool holder
An apparatus for inductively heating a sleeve section, having a central holding opening for a shank of a rotary tool, of a tool holder that holds the shank in the holding opening in a press fit and releases it upon heating. The apparatus includes an induction coil a...
03/15/2005
6648209Process for producing welded steel pipes with a high degree of strength, ductility and deformability
In a process for producing welded steel pipes, a pipe is molded cold from a TM-rolled sheet, welded together and sized to the desired diameter, whereby the sheet includes steel with (in wt. %) 0.02 to 0.20% carbon, 0.05 to 0.50% silicon, 0.50 to 2.50% man...
11/18/2003
6353706Optimum oil-well casing heating
An electrical heating method and apparatus for minerals wells having a metallic fluid admission section located adjacent a hydrocarbonaceous reservoir of a heterogeneous reservoir that has at least two longitudinally spaced producing intervals having diff...
03/05/2002
6346690Induction heating system with a flexible coil
A method and apparatus for induction heating includes a power supply, and a controller, and an induction head. The induction head includes a flexible coiled, such as one formed with Litz wire. The head also includes a thermal insulator, for disposing betw...
02/12/2002
6262403Apparatus for aligning ends of diffusion bonded materials
A diffusion bonding method having a step of adjusting ends of material to be bonded before bonding the material after setting the materials in the diffusion bonding apparatus, whereas a diffusion bonding apparatus having a means of finishing ends of mater...
07/17/2001
6230745Pipe heating device
A pipe heating device for conveniently thawing out pipelines. The pipe heating device includes a scissor-like member including a first elongate member having a first end, a second end, and an intermediate portion, and also including a second elongate memb...
05/15/2001
6229126Induction heating system with a flexible coil
A method and apparatus for induction heating includes a power supply, and a controller, and an induction head. The induction head includes a flexible coiled, such as one formed with Litz wire. The head also includes a thermal insulator, for disposing betw...
05/08/2001
6193834Apparatus and method for fusion joining a pipe and fittings
An apparatus for fusing a pipe to a fitting includes an induction heating element wholly encased or coated with a flusible thermoplastic polymeric material, a fitting having a socket or a flange. The induction heating element is adapted to be inserted int...
02/27/2001
6166359Induction heating apparatus and method for pipeline welding operations
Induction heating apparatus for use in welding an end of a first length of pipe (26) to the exterior surface of a second length of pipe (28), consists of heating assemblies (20, 24) each comprising at least one electrical induction coil (32, 36) wound on ...
12/26/2000
6107613Selectively sizable channel coil
An adjustably dimensionable inductive heating apparatus includes inductor turns which are supported by a slide or actuator to allow selective positioning of the inductor turns to a variety of positions. The adjustable support members are disposed to allow...
08/22/2000
6093917High frequency heating coil device
A high frequency heating coil device having sufficient flexibility and heating ability is provided. Coils 2 are contained in outer jacket 1. The coils 2 are made of steel, copper or brass tubing which is annealed sufficiently to be flexible. Plural pieces...
07/25/2000
5750971Apparatus for controlling RF generators to weld plastic materials
Radio frequency power for melting, sealing and welding plastic tubing compressed between a pair of manually or automatically actuated electrically conducting jaws of a hand held or fixed base tubing sealer is regulated by a pulse width modulator controlli...
05/12/1998
5580479High-frequency inductor heating tube for solder injectors
The high-frequency inductor heating tube (1) for solder injectors is furnished as a hollow cylinder formed at one end as a cylindrical receiver tube. Windings of an inductor (2) are disposed over length of the cylindrical receiver tube. A solder injector ...
12/03/1996
5543604RF Generator for plastic tubing sealers
Radio frequency power for melting, sealing and welding plastic tubing compressed between a pair of manually or automatically actuated electrically conducting jaws of a hand held or fixed base tubing sealer is regulated by a pulse width modulator controlli...
08/06/1996
5526561Method of making an induction heating tool
A jaw-like cylindrical tool for producing a strong electromagnetic field for causing a Curie point heater to be energized having a curved cross-section that brings the two edges of the jaw-like structure into contact. Closely spaced conductors lie along t...
06/18/1996
5466916Method and apparatus for joint resin pipes using high-frequency electric induction heating
When resin pipes are connected through induction heating, the resin pipes of this invention do not form inside bulges due to air and resin expansion during the heating process. A cylindrical heater made of stainless steel is placed around the joint betwee...
11/14/1995
5412184Industion heating tool
A jaw-like cylindrical tool for producing a strong electromagnetic field for causing a Curie point heater to be energized having a curved cross-section that brings the two edges of the jaw-like structure into contact. Closely spaced conductors lie along t...
05/02/1995
5412182Eddy current heating for hyperthermia cancer treatment
An interstitial heater, made of an electrically conductive tube with a wire wound in a toroidal configuration about the tube and connected to a capacitor to form a tank circuit, is driven with a radiofrequency power source at resonance to provide tissue h...
05/02/1995
5406055Apparatus for expanding/shrinking articles
An apparatus for producing a heat recoverable plastic article such as a tube by deforming the article from a heat-stable configuration to a heat-unstable configuration. The heat-unstable configuration will return to the heat-stable configuration when the ...
04/11/1995
5349166RF generator for plastic tubing sealers
Radio frequency power for melting, sealing and welding plastic tubing compressed between a pair of manually or automatically actuated electrically conducting jaws of a hand held or fixed base tubing sealer is regulated by a pulse width modulator controlli...
09/20/1994
5338920Method of manufacturing and joining electro-fusion fitting
An electro-fusion fitting includes a body, and a magnetic alloy member which is continuous in the axial direction is embedded in the vicinity of a joint surface of the body. A shield member is arranged on the outer surface of the body in a portion where a...
08/16/1994
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