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| Number | Title | Issue Date |
| 7342209 | Microprocessor controlled tube apparatus having reduced radio frequency emanations A tube apparatus is provided to detect successful or failed tube operations. The tube apparatus includes jaws mounted for movement with respect to one another between (1) a first position spaced from one another and (2) a second position selected to perform a succes... | 03/11/2008 |
| 7326898 | Method and apparatus for closing or severing a tube using a controllable closure force FIG. 1 depicts a full view of the picnic table backrest. It shows the backrest, the bars that wrap around the bench to keep the back rest stable and the latch on the back of the rest that keeps the rest from slipping out. FIG. 2 shows a close up view o... | 02/05/2008 |
| 6794624 | Microprocessor controlled tube apparatus having reduced radio frequency emanations A dielectric tube sealer is provided with first and second jaws oriented along a jaw axis and positioned to receive a tube portion in a space therebetween. The first jaw is fixed and is coupled to a radio frequency generator. The second jaw is movable with respect t... | 09/21/2004 |
| 6784407 | Bench top tubing sealer A desk top sealer includes three compartments for housing a solenoid assembly, a power supply and a circuit board, respectively. A source of air flow flows into an initial compartment and is channeled through apertures in brackets forming the two remaining compartme... | 08/31/2004 |
| 6559432 | Apparatus 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 |
| 6486456 | Fusing processing method In odd-numbered current-supplying periods of a plurality of current-supplying periods constituting a gross current-supplying time, a control unit 42 allows continuous switching actions of only a first set of switching elements at an inverter frequency, wi... | 11/26/2002 |
| 6359273 | Method 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 |
| 6323473 | Packed food pasteurizing device and pasteurizing method A prepackaged food sterilizing apparatus for sterilizing a prepackaged food P has a high frequency generator 71. A high frequency is supplied from the high frequency generator 71 to the prepackaged food P to sterilize the prepackaged food P by dielectric ... | 11/27/2001 |
| 6023055 | Apparatus for heating prepackaged foods utilizing high frequency heating with electrodes in a sealed chamber A heating apparatus for heating a prepackaged food, is provided with a heater which heats a prepackaged food, an enclosure which defines an airtight chamber operable to accommodate the prepackaged food, and a pressure controller which controls the inside ... | 02/08/2000 |
| 5973308 | Efficient dielectric heater A novel dielectric heater including a RF source having a first impedance, a parallel plate mold having a second impedance, and an impedance network, matching the first impedance to the second impedance, connected to the RF source and the parallel plate mo... | 10/26/1999 |
| 5750971 | Apparatus 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 |
| 5736719 | Method and apparatus for heat sealing of packaging materials employing RF electric energy Method and apparatus employing radio frequency electric energy for heat sealing of laminated packaging materials, particularly aseptic packaging materials, that include facing contiguous layers of thermoplastic material, including first and second seal ja... | 04/07/1998 |
| 5647940 | Process 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 |
| 5457304 | Method of forming a decorative image on fabric materials A method of forming a raised image of preselected pattern onto the surface of a fabric material by first laminating a thin film of vinyl onto the surface of the fabric and underlying the fabric with a thin layer of vinyl. A heated die of the image to be f... | 10/10/1995 |
| 5387782 | Apparatus for smoothing paper webs The invention relates to an apparatus for the generation of smoothness in paper. The paper (1) is thereby supplied to the rolls (2) of the smoothing mechanism with a moisture distribution which is characterized in that the moisture content in the inner la... | 02/07/1995 |
| 5345070 | Radio frequency tubing sealer An insulating sleeve retains heat in the plastic of a flexible plastic medical tube when the plastic of the medical tube is dielectrically heated by a radio frequency tubing sealer. The heat retained by the insulating sleeve permits additional melting of ... | 09/06/1994 |
| 5313034 | Thermoplastic welding A process for obtaining long, continuous, thermoplastic welds on large structures. A series of tabs are used in pairs and especially in alternating, overlapping pairs to obtain resistance heating of a strip material placed in the bond line. The resistance... | 05/17/1994 |
| 5256845 | Apparatus 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 |
| 5245154 | Method and apparatus for heating a wood material A wood material, into which a synthetic resin solution or the like is injected, is held from its surface and back by heating plates in a closed container. The inside of the heating plate is provided with a heating medium passageway through which a heating... | 09/14/1993 |
| 5187340 | Method for welding at least one region of an overlay sheet to a receiving surface of a carrier layer A method for welding at least one region of an overlay sheet (16) to a receiving surface of a carrier layer (14) by means of high frequency energy. In the method, on the surface remote from the receiving surface of the carrier layer (14) a foil (12) of el... | 02/16/1993 |
| 4954678 | Annular RF sealer and method A radially compressible heating element is located about concentric overlapped heat fusible elements temporarily mounted upon a mandrel to form an annular seal between the heat fusible elements upon energization of the heating element.... | 09/04/1990 |
| 4755649 | Apparatus for compression welding of adapter and flanged catheter A probe with a shoulder is used to support a pre-flanged distal end of a catheter placed inside of an adapter. The probe has a minor diameter to engage coaxially the bore of the catheter and a major diameter to carry coaxially the adapter in axial alignme... | 07/05/1988 |
| 4623770 | Method of imparting crease to polyester fiber goods The portion to be creased of polyester fiber goods is subjected to pressing and high-frequency treatment by means of a press bar attached to an upper electrode of a high-frequency welding machine, whereby a solid crease can be imparted to the polyester fi... | 11/18/1986 |
| 4577077 | Surface smoothing method for disk-like recording medium A double-faced disk-like recording medium comprising recording layers containing a dielectric binder is supported under pressure between a pair of electrodes having highly planished surfaces, and a high frequency is applied from the electrodes to both sur... | 03/18/1986 |
| 4574173 | Device for RF welding an IV tube to a catheter lumen A device for welding an IV tube into fluid communication with a lumen of a catheter comprises a grounded metal adapter which is operatively associated with a dielectric collet to clampingly engage and hold a catheter in the collet. The device further comp... | 03/04/1986 |
| 4547641 | Method for dielectrically joining tubular members A method of dielectrically joining the mated ends of tubular members is, specifically, used in the formation of a cannula for insertion into a body cavity, duct, or vessel of a patient. The cannula preferably includes a parent cannula member and an integr... | 10/15/1985 |
| 4529859 | Blood tubing sealing unit A solenoid operated moveable jaw cooperates with a fixed jaw protruding from a blood tubing sealing unit and formed as part of a relatively massive heat sink to effect seals on liquid filled plastic tubing upon transmission of RF energy timed to coincide ... | 07/16/1985 |
| 4496819 | Jaws for an electro-mechanical tubing sealer A pair of jaws moveable with respect to one another whether mounted in a hand held sealer or desk mounted sealer, compresses, heats, elongates, spreads and welds liquid filled tubing placed therebetween. Variants of the pair of jaws provide means for seri... | 01/29/1985 |
| 4491711 | Electro mechanical tubing sealer A pair of jaws moveable with respect to one another whether mounted in a hand held sealer or desk mounted sealer, compresses, heats, elongates, spreads and welds liquid filled tubing placed therebetween. Variants of the pair of jaws provide means for seri... | 01/01/1985 |
| 4490598 | Blood tubing sealing unit A solenoid operated moveable jaw cooperates with a fixed jaw protruding from a blood tubing sealing unit and formed as part of a relatively massive heat sink to effect seals on liquid filled plastic tubing upon transmission of RF energy timed to coincide ... | 12/25/1984 |
| 4488028 | Electrode mechanical tubing sealer A pair of jaws moveable with respect to one another whether mounted in a hand held sealer or desk mounted sealer, compresses, heats, elongates, spreads and welds liquid filled tubing placed therebetween. Variants of the pair of jaws provide means for seri... | 12/11/1984 |
| 4451721 | Method for high frequency welding flangeless thermoplastic shells A method for dielectric welding together of two substantially rigid thermoplastic flanged parts (or "subshells") to form a flangeless, typically thin-walled, thermoplastic shell. The method may be praticed using a pair of relatively movable, clamping elec... | 05/29/1984 |
| 4427865 | Method of heat-bonding interior material A method for heat-bonding interior material including heating one electrode of a high-frequency welder to about 100° C. less than the melting point of the outermost interior finishing material. The increased temperature raises the susceptibility of the c... | 01/24/1984 |
| 4396816 | Apparatus for processing polyethylene terephthalate preforms This relates to the heating of polyethylene terephthalate by way of RF energy. It has been found that if polyethylene terephthalate articles are passed through a radio frequency energy field, the molecules thereof will become excited and rapid heating wil... | 08/02/1983 |
| 4384186 | Electrode sealing system for thermoplastic tube A system for hermetically sealing a thermoplastic tube during each cycle of operation of the system. A hand-holdable sealing gun has a pair of electrodes between which a tube to be sealed is placed. One of the electrodes is fixed and the other is moved by... | 05/17/1983 |
| 4362918 | Radiation absorbing apparatus Apparatus serving to significantly reduce the amount of unwanted radiation leakage of radio frequency energy normally present at high levels ambient to radio frequency dielectric heating equipment used extensively in connection with the manufacture of the... | 12/07/1982 |
| 4322593 | Apparatus for pre-heating resin tablet An apparatus for pre-heating resin tablets comprising a resin tablet heater, a switch for setting a reference softening degree and a softening degree detector for the resin tablet. The detector includes a pressure source and a pressure transmitting member... | 03/30/1982 |
| 4316709 | Continuous belt press with capacitative heating means A continuously operating heat-treatment press in which a continuously advanced layer (7) of material under pressure, for example including glue-coated wood chips, is heated dielectrically. The press is of the kind which comprises at least one endless, con... | 02/23/1982 |
| 4268338 | Method and apparatus for RF sealing of thermoplastic layers Two or more layers of nonpolar thermoplastic film are bonded together by application of an RF current. The layers of thermoplastic film are pressed against a thin electrode plate, which lies atop a thin sheet of dielectric material supported on a conducti... | 05/19/1981 |
| 4205210 | High frequency cavity press An apparatus for applying pressure and a high frequency electric field to material, comprising a cavity for containing the electric field which encloses platens relatively movable to apply pressure to material placed between the platens. The cavity electr... | 05/27/1980 |
