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| Number | Title | Issue Date |
| 7284305 | Apparatus and process for automatically cutting textile web with reduced wrinkling The present invention generally relates to an apparatus and process for automatically cutting a textile web with reduced wrinkling. The process includes passing the textile web across a first guide roller having a first guide surface directing the textile web to the... | 10/23/2007 |
| 7240408 | Selectivity altering a fiber height in a pile fabric and apparatus A region of a pile fabric is impacted with a laser at spaced illuminated areas in a dithered image, wherein the laser energy and duration of impact in the illuminated areas are selected to shorten the fibers within the illuminated area. The spacing of the illuminate... | 07/10/2007 |
| 7167194 | Printing a code on a product A method for printing is described. The method includes providing a printing system for printing a code on a product moving in a direction. The code is constructed from a plurality of pixels in a first data set indicating the positions of the pixels and generates a ... | 01/23/2007 |
| 6621031 | Syringe and needle destruction device A device that operates to reduce the hazard involved in the disposal of conventional hypodermic needles used throughout the medical world. When the needle is presented to the inventive device, while still attached to the syringe, it is vaporized an electr... | 09/16/2003 |
| 6427419 | Method for making permeable film In a method for making a permeable film, a physical force is applied to a film of a first material containing particles of a second material which is different from the first material. The second material has a higher susceptibility to the physical force ... | 08/06/2002 |
| 6348675 | Method of manufacturing plastic film with pore-opening discharge spark control A method of producing plastics film (8) wherein high-voltage pulses are impressed between a pair of electrodes (4,6), thereby creating pores in a plastics film which is fed into the spark gap (5) between electrodes, characterised in that the number of dis... | 02/19/2002 |
| 6284994 | Electrode system for perforating synthetic plastic films An apparatus for perforating a film has one or more electrodes in electrode holders to lightly contact the film, a return electrode to support the film, and a voltage coupler to produce a discharge between the electrodes to perforate the film. A water jet... | 09/04/2001 |
| 6188043 | Method for making permeable film In a method for making a permeable film, a physical force is applied to a film of a first material containing particles of a second material which is different from the first material. The second material has a higher susceptibility to the physical force ... | 02/13/2001 |
| 6114676 | Method and device for drilling, cutting, nailing and joining solid non-conductive materials using microwave radiation A microwave device and corresponding method for cutting, and especially drilling into, a solid body of non-conductive material employ a microwave source which provides microwave radiation, typically through a waveguide, to a concentrator. The concentrator... | 09/05/2000 |
| 5562948 | Method and apparatus for producing an electrically conductive wall from a fabric and a sheet material A method for the production of an electrically conductive wall of a fabric and a film material which is provided with an insulating coating, and particularly for the production of sheets of fabric which are provided with an insulating coating and have ele... | 10/08/1996 |
| 5356497 | Method for forming a sheet material permeable to gas and not permeable to water A method for forming a sheet material permeable to gas and not permeable to water includes forming the sheet material by hot pressing two materials together, and discharging static electricity to the sheet material in order to form a number of apertures i... | 10/18/1994 |
| 5322985 | Method for boring small holes in substrate material A method for boring small holes in a substrate by disposing electrodes on both sides of a substrate to be machined and applying a voltage between the electrodes so as to perform plasma discharge treatment at a pressure of 10 to 2×103 Torrs. In... | 06/21/1994 |
| 5046812 | Apparatus and method for joining coated optical fibers by fusion An arrangement for effectively fusing together two optical fibers. Many fibers currently have a carbon-based coating applied to the bare fiber, with the coating being surrounded by a plastic jacket. It has been difficult to fuse the two fibers together du... | 09/10/1991 |
| 5018824 | Process for fusion-splicing hermetically coated optical fibers A process for fusion-splicing hermetically coated optical fibers each of which comprises an inorganic coating, an optical fiber glass and optionally an organic coating, which process comprises removing the inorganic coating, fusion-splicing the fibers and... | 05/28/1991 |
| 5012825 | Apparatus for perforating running webs of wrapping material and cleaning devices therefor Apparatus for perforating a running web of wrapping material, such as a web of tipping paper in a filter tipping machine for the making of filter cigarettes, is advanced through two successive electric perforating units one of which is active while the ot... | 05/07/1991 |
| 4957122 | Device for the electrostatic perforation of webs of paper A device for the electrostatic perforation of webs made of paper or other materials, particularly of the webs used in the manufacture of ventilated cigarettes to constitute the cigarette envelope or the junction band of a cigarette with the respective fil... | 09/18/1990 |
| 4777338 | Perforation of synthetic plastic films Spark perforation of synthetic plastic film is carried out by applying electrodes to opposite ends of a portion of the film submerged in a water bath that is at a temperature above the onset temperature of glass transition of the film,and applying short f... | 10/11/1988 |
| 4765120 | Film web perforation A device for perforating a film web while wrapping a load which the film web includes a web dispenser for dispensing the film web and an arrangement for providing relative rotation between the load and the web dispenser to wrap the film web on the load. I... | 08/23/1988 |
| 4568815 | Laser perforating apparatus A laser perforator device is controlled with respect to laser power and duty ratio in a manner so as to produce uniform perforations at a selected pitch in a workpiece, such as, a travelling plastic or metallic web. The speed of the workpiece is detected ... | 02/04/1986 |
| 4563228 | Method and apparatus for regulating the permeability of wrapping material for rod-shaped smokers products A continuous web which is drawn off a roll is perforated on its way toward the wrapping station of a machine for the making of plain or filter tipped smokers' products or filter rod sections. The perforating device is adjustable by a control system which ... | 01/07/1986 |
| 4534994 | Process for making fine perforations in plastic sheeting and/or plastic or rubber coated sheet materials A process for making fine perforations in plastic sheeting and/or plastic or rubber coated sheet materials in which the sheeting or the coating is too thick and/or the dielectric constants are too high for electrically making the fine perforations, includ... | 08/13/1985 |
| 4507535 | Method and apparatus for perforating material A process for perforating material comprising the steps of advancing material along a path of travel, passing the advancing material over a movable laser mask having an aperture such that the material drives the mask in unison with the movement of the mat... | 03/26/1985 |
| 4503318 | Apparatus for the spark perforation of sheet materials Apparatus for spark perforation of sheet material comprising spaced apart first and second electrodes which define between them a sparking zone through which sheet material to be perforated can be moved in a predetermined direction, and in which the porti... | 03/05/1985 |
| 4501953 | Method of and apparatus for controlling apparatus for perforating strips of paper or the like by disruptive spark discharges A method of and apparatus for controlling apparatus for perforating strips of paper by disruptive spark discharges. The perforate strip passes between two chambers, each of which has an opening facing the strip. Waves transmitted by a transmitter disposed... | 02/26/1985 |
| 4488030 | Electrical spark treatment apparatus In electrical spark treatment apparatus, more consistent and controllable sparking from multiple spark gaps is achieved by providing individual energy storage components for each spark gap, including a capacitance and an inductance in series with each gap... | 12/11/1984 |
| 4447694 | Apparatus for breaking up metal parts An apparatus for breaking up metal parts is characterized in that it comprises at least two conductive supports connected to an electric power supply and able at least partly to support the part to be broken up. Application to the breaking up of metal par... | 05/08/1984 |
| 4447709 | Method for electrically perforating dielectric webs A method is provided for controlling the porosity of a web or film issuing from an electric spark perforating apparatus in accordance with an operator-set reference porosity regardless of variations in web speed, inherent web porosity, spark discharge ene... | 05/08/1984 |
| 4447708 | Assembly for use in the spark perforation of sheet material A spark perforation apparatus includes a rotary electrode assembly for effecting spark perforation of sheet material passing between the electrodes of the assembly and a suitably juxtapositioned earthed surface. The electrode assembly comprises a first se... | 05/08/1984 |
| 4425496 | Removal of metal coating from dielectric material The metal coating on a dielectric sheet or strip, for instance for use in capacitors, is locally removed by a Corona discharge between the sheet and a point electrode. A current return electrode contacts the sheet and is located in the return path to a HV... | 01/10/1984 |
| 4355226 | Apparatus for the spark perforation of sheet materials Apparatus for spark perforation of sheet material comprising spaced apart first and second electrodes which define between them a sparking zone through which sheet material to be perforated can be moved in a predetermined direction, and in which the porti... | 10/19/1982 |
| 4334144 | Corona effect surface treatment apparatus for sheet An apparatus for corona effect surface treatment of sheet materials, comprising a metal electrode and an insulating material coated electrode, between which the materials to be treated are inserted, wherein in the inside of said coated electrode a cooling... | 06/08/1982 |
| 4323082 | Apparatus for making holes in webs of wrapping material for cigarettes or the like Apparatus for making holes in a running web of wrapping material in a filter tipping machine has a housing which defines an elongated passage for the running web and contains rows of first and second electrodes which are disposed at the opposite sides of ... | 04/06/1982 |
| 4320773 | Method and apparatus for treating wrapping material for cigarettes or the like A running web of wrapping material which is about to be converted into adhesive-coated uniting bands for joining plain cigarettes with filter plugs in filter tipping machines is transported through the passage of a housing wherein the web travels through ... | 03/23/1982 |
| 4314142 | Spatially distributed electrostatic perforation of moving webs A method and apparatus for controlling the perforation of webs being moved in a longitudinal direction, by an array of electrodes spatially distributed in a transverse direction, wherein selected control electrodes are added to or removed from the electro... | 02/02/1982 |
| 4297559 | Apparatus for controlled perforation of moving webs with fixed focus laser beam A system for precision perforation of moving webs employing a pulsed, fixed focus laser beam wherein the laser pulses are automatically controlled in pulse repetition frequency and in pulse width to provide a desired preset web porosity. Closed loop circu... | 10/27/1981 |
| 4295478 | Composite tipping structure for use on an air-ventilated cigarette and method of manufacturing same A composite structure for use on a smoking product including a non-porous tipping paper coated with a heat-activatable adhesive in a selected pattern, having areas void of adhesive and microscopic openings through the tipping paper within the void areas. ... | 10/20/1981 |
| 4278871 | Arrangement for effecting the superfine perforation of film-like sheeting with the aid of high-voltage pulses Arrangement for effecting the superfine perforation of film-like sheeting with the aid of high-voltage pulses. The sheeting to be perforated is permitted to pass in a contactless manner between two areal electrode fields. The electrode fields consist of a... | 07/14/1981 |
| 4265616 | Process for producing a heat-weakened strip in polyolefin film A continuous process for forming a longitudinal heat-weakened strip in a cross-lapped oriented polyolefin film is disclosed. The process comprises directing heat from two longitudinally aligned sources, to opposing sides of a travelling web of the cross-l... | 05/05/1981 |
| 4253010 | Spatially distributed electrostatic perforation of moving webs A method and apparatus for controlling the perforation of webs being moved in a longitudinal direction, by an array of electrodes spatially distributed in a transverse direction, wherein selected control electrodes are added to or removed from the electro... | 02/24/1981 |
| 4246775 | Porosity measuring apparatus and perforating system using same Porosity measuring apparatus for a moving web of sheet material comprising a sensor having a chamber and a wall provided with apertures communicating with the chamber and of number, spacing and dimension sufficient to obtain an air seal between the moving... | 01/27/1981 |
