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Class 156/380.2 - With electrode or coil member contacting work


Subclass of Class 156 - Adhesive bonding and miscellaneous chemical manufacture
Definition: Subject matter including a carrier of electric current,
No. of patents: 91
Last issue date: 08/21/2007


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NumberTitleIssue Date
7258150Machine for continuously producing plastic laminates in a cold press
Continuous installation (10) for the production of plastic laminates including multi-layer laminates (110, 120, 130), comprising a cold press (11) having a lower fixed plate (12) on which is laid a band of aluminium for carrying and drawi...
08/21/2007
7247219Rotary impulse sealer
The invention is a rotatable cylindrical roll for heat sealing heat sealable materials that includes a heating zone for sealing the material and a cooling zone for supporting the newly formed seal. The device comprises a conductive zone and a resistive zone that are...
07/24/2007
7204520Device for joining components made of fusible plastic
A device for connecting components (1, 2, 3) made of fusible plastic, especially pipes (12, 60) of a fuel pipeline or a fuel line to a fuel tank (8) of a vehicle. The device includes a heating element (4) having ends (44, 46) which...
04/17/2007
7205516Bonding of materials with induction heating
An apparatus and process are provided for bonding of materials by induction heating of an electrically conductive material upon which a second material is bonded. The electrically conductive material is induction heated between a first induction heating plate, and t...
04/17/2007
7202450Induction coil design for portable induction heating tool
A portable induction tool is provided for soldering or brazing sections of metal pipe together. A work coil head (with induction coil) is U-shaped, allowing placement of the head around lengths of pipe, heating a susceptor (e.g., the pipe) to form a joint, and then ...
04/10/2007
7153382Pressure element for an edge gluing machine and gluing method
The pressure element (7) is designed for gluing a bandlike covering (4) by means of an adhesive onto a narrow face (3) (edge) of straight or curved (profiled) cross section of a board element (2) or for gluing a film onto a profile bar ha...
12/26/2006
7129450Method and device for manufacturing packages
A method and a device for manufacturing packages are provided. The method comprises providing a tubular first package part of a sheet of thermoplastic coated packaging material including at least one layer of an induction heatable material. The first package part ha...
10/31/2006
6984276Method for preparing high bulk composite sheets
This invention relates to a method for preparing nonwoven fabrics having an improved balance of properties in the machine and cross-directions. More specifically, the invention utilizes nonwoven webs that include relatively low levels of multiple-component fibers ha...
01/10/2006
6793831Microlamination method for making devices
A method for fabricating devices in a pre-assembled state comprising forming plural laminae, registering the laminae, and bonding the laminae one to another is described. The plural laminae contain the substructures and structures of the device. The substructures ar...
09/21/2004
6786989Sealing
A method for sealing a surface (13) of a body (11), wherein a thin material (21) is applied to the surface (13), and the material is connected to the surface by melting due to mechanical stimulation. ...
09/07/2004
6713735Induction foil cap sealer
An induction foil cap sealer includes a sealing head module and power supply module that can be separately mounted and replaced. Both modules are convection air-cooled without a requirement for forced air-cooling or water cooling. ...
03/30/2004
6649022Ventilated sealing head for induction sealer
An inductive cap sealer for sealing an inner seal over an opening in a container includes a vented sealing head. The sealing head contains an induction coil for producing an electromagnetic field when energized by a power supply. Field focusing elements c...
11/18/2003
6559432Apparatus and methods for welding flexible material
A fixture for use with a radio-frequency welding press includes an independent electrode that is not attached to a platen of the press and which is used to register directly on flexible material workpieces to locate and hold workpieces during a welding op...
05/06/2003
6395215Method of producing a plastic component and fuel tank for a motor vehicle
In a method of producing a fuel tank from plastic, a heating element is located between two shell parts to be welded to one another. When the shell parts are pressed together, the heating element melts into the plastic and produces a weld that provides a ...
05/28/2002
6359273Method and apparatus for producing a unified laminated body by dielectric heating and method for dielectrically preheating a laminate structure for the unified laminated body
A method of preheating a polymer plate by dielectric heating by applying a radio frequency voltage to a laminate in the direction of its lamination through electrodes; a method of producing a laminate, comprising dielectric heating a polymer plate by appl...
03/19/2002
6288375Conformable loop induction heating apparatus and method for accelerated curing of bonded members
An induction heating apparatus and method for heating a substantially continuous first bondline defined by a length of thermally responsive bonding material positioned between a first member and a second member. The first member or second member is made o...
09/11/2001
6153864Spray washable air cooled cap sealer
A cap sealing unit for securing foil-polymer laminate innerseals to containers has an air cooled electronics cabinet that may be sealed in accordance with NEMA 4 standards. Heat sinks in the bottom of the electronics cabinet and the top of the sealing hea...
11/28/2000
6007677Apparatus and method for manufacturing continuous laminated wood stock
Apparatus for continuously processing wood product formed from random lengths of wood strips assembled in face-to-face relationship with heat curable adhesive applied to adjacent contacting faces of the strips includes a pair of opposed, parallel, linear ...
12/28/1999
5919387Inductive systems for bonding and joining pipes
A method for bonding or joining plastic or metallic pipe using induced energy is provided. A susceptor is placed between the two pipes to be joined and a magnetic flux is induced onto the susceptor. The second pipe may be a coupling device. The magnetic f...
07/06/1999
5906766Method for dielectrically heating an adhesive
A method of heating an adhesive including the steps of placing a dielectrically heatable adhesive between first and second members. A high frequency electric field is applied between the first and second members sufficient to dielectrically heat the adhes...
05/25/1999
5840151Apparatus and dies for forming peelable tube assemblies
An apparatus for forming coiled tubular assemblies is provided. The apparatus includes a pair of dies formed from a radio frequency (RF) conducting material. The dies each have contoured leading surfaces with these surfaces having grooves with lands betwe...
11/24/1998
5767491Heating apparatus for making a continuous longitudinal seam weld on a laminated packaging material web
The disclosure relates to an apparatus for making a continuous welding joint. A material web (20) formed into a tube (8) is sealed along the longitudinal joint seam in that a joint heater (1), preferably an induction heater, is disposed in parallel along ...
06/16/1998
5756973Barbed susceptor for improviing pulloff strength in welded thermoplastic composite structures
Thermoplastic welding is an emerging technology targeted at significantly reducing the manufacture of aerospace structure by eliminating fasteners and the touch labor associated with fasteners to prepare, install, and inspect the assemblies. Thermoplastic...
05/26/1998
5750970Method for dielectrically heating an adhesive
A method of heating an adhesive including the steps of placing a dielectrically heatable adhesive between first and second members. A high frequency electric field is applied between the first and second members sufficient to dielectrically heat the adhes...
05/12/1998
5746872Method and unit for end sealing elongated wrappings
Elongated wrappings made of sheet material comprising a first metal component and a second heat-sealable component are end sealed by successively feeding the wrappings, by means of a conveyor, in a first given direction and along a given path through a se...
05/05/1998
5720842Panel construction
Panel construction for forming upholstery panels for use in automotive vehicles and the like, where a plastic substrate which has been formed to a desired configuration, is placed over a grounded metal horn, a layer of adhesive fabric is placed over the s...
02/24/1998
5712469Method of curing inaccessible thermoset adhesive joints using radio frequency dielectric heating
Method of curing inaccessible thermoset adhesive joints, comprising: forming structures to be bonded at mating surfaces when assembled, the shortest distance from the mating surfaces to the exterior of the assembly inhibiting the application of radio freq...
01/27/1998
5705795Gap filling for thermoplastic welds
Thermoplastic welding is an emerging technology targeted at significantly reducing the cast of manufacture of aerospace structure by eliminating fasteners and the touch labor associated with fasteners to prepare, install, and inspect the assemblies. Therm...
01/06/1998
5647940Process for automatically connecting a source of electric current and a pile of packages to make plastic laminates with endothermic heating
Process for automatic connection, at the moment of pressing, between a source (26) of electric current and the metal parts (35), connected in series, of the piles (30) of packages (31) for making plastic laminates to permit electric endothermic heating, t...
07/15/1997
5508496Selvaged susceptor for thermoplastic welding by induction heating
Susceptors for induction heating for use in thermoplastic welding are tailored to provide precise control of the heat applied to the weld and especially to control overheating at the edges of susceptor. The preferred susceptor has a central portion having...
04/16/1996
5500511Tailored susceptors for induction welding of thermoplastic
To obtain more uniform heating across the susceptor when welding composite parts using induction heating, we create edge regions of lower absolute impedance or a lower longitudinal impedance than the transverse impedance to counterbalance the higher curre...
03/19/1996
5488221Slot interlock connectors for RF welding electrodes
Slot interlock connectors for RF welding electrodes include an electrode having a working edge, at least two ends and an integral mounting block which has ends which overshadow the ends of the electrode and provide substantially flat alignment surfaces ad...
01/30/1996
5486684Multipass induction heating for thermoplastic welding
An induction coil is passed over an interface between two resinous parts to be welded and an alternating magnetic field generated by the coil induces eddy currents in a foraminous susceptor positioned in the interface between the two parts. Pressure is ap...
01/23/1996
5444220Asymmetric induction work coil for thermoplastic welding
An asymmetric coil which has an "A" winding on one pole of the "C" core and a "B" winding of opposite helical twist, on the other pole, we can achieve relatively uniform, intense heating between the poles with relatively insignificant heating outside the ...
08/22/1995
5399221Continuous process for forming fiber-reinforced high temperature thermoplastic resin honeycomb structures
A continuous process for producing honeycomb support structures by bonding a plurality of thermoplastic sheets together. The process comprises feeding, aligning, supporting and bonding thermoplastic corrugated sheets in sequence to build a honeycomb-struc...
03/21/1995
5365041Induction heating coil for bonding metal sheets
An induction coil for joining structural members by heating a bonding material disposed between the structural members. The induction coil includes first and second elements disposed in a non-parallel arrangement adjacent one surface and along one side ed...
11/15/1994
5352871System and method for joining plastic materials
The invention provides a system and method for joining plastic members including induction heaters fabricated from a conductive wire coated with a ferromagnetic material and providing ratios of at least 4 to 1 between the areas over the spaces between wir...
10/04/1994
5350902Induction heating coupler
An induction heating device includes a handle having a hollow interior and two opposite ends, a wrist connected to one end of the handle, a U-shaped pole piece having two spaced apart ends, a tank circuit including an induction coil wrapped around the pol...
09/27/1994
5260535Apparatus for induction welding
An apparatus for induction sealing plastic-coated thermoplastic packaging material that includes a metal layer, comprises an inductor and a counter block between which the packaging material is to be positioned. The inductor includes a carrier portion tha...
11/09/1993
5256845Apparatus for sealing medical plastic tubing with high frequency dielectric heating
Spurious emission from an apparatus for sealing medical tubing is prevented by providing a tuned circuit of capacitors and inductors between amplifier stages, by providing a low-pass filter of such resonant networks at the input and the output of the gene...
10/26/1993
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