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Class 226/94 - By electrostatic force


Subclass of Class 226 - Advancing material of indeterminate length
Definition: Device wherein the force utilized is of the type created
No. of patents: 35
Last issue date: 05/30/2006


NumberTitleIssue Date
7052126Inkjet recording apparatus
An inkjet recording apparatus for providing a high-quality image wherein a recording medium is thoroughly sucked by a conveyance belt and is accurately conveyed, thereby saving much time and effort. A conveyance belt 7 for supporting and conveying a recording...
05/30/2006
6787196Apparatus for making a web of paper or board containing calcium carbonate
Apparatus for forming a paper or board web made from fibers in which the web is treated with calcium hydroxide and then with carbon dioxide gas so as to form calcium carbonate. ...
09/07/2004
6680086Method for making paper, assembly for implementing the method and paper product produced by the method
Method and assembly for forming a paper or board web and a product made using the method. According to the method, the web (11) is made from fibers and then the web (11) is treated with pigment particles. The web is treated with microscopic pigment partic...
01/20/2004
6604345Apparatus for applying a banderole
An apparatus for applying a banderole around one or a plurality of products creating an electrostatic attraction between the band material being supplied and the conveyor unit. The conveyor unit is connected to earth potential, and electrodes are position...
08/12/2003
6551562Method and apparatus for guiding a web of paper or board web during manufacture
Method and apparatus for guiding a web of paper or board or, alternatively, an edge strip sheared therefrom, in a paper machine or finishing equipment, the method being particularly suited for threading the web tail or edge strip through the machine in co...
04/22/2003
6175716Continuous medium printing apparatus
The invention provides a continuous medium printing apparatus which can exert a transporting force to act upon a continuous medium without additional provision of a new tractor mechanism or some other transport mechanism. In the continuous medium printing...
01/16/2001
5964988Web feeder with controlled electrostatic force and method
A method and apparatus for applying a uniform electrostatic force to a web moving between a pair of electrodes to create an electron wind that urges the web toward one of the electrodes controls the current forming the electron wind to maintain the curren...
10/12/1999
5900218Web feeder with controlled electrostatic force and method
A method and apparatus for applying a uniform electrostatic force to a web moving between a pair of electrodes to create an electron wind that urges the web toward one of the electrodes controls the current forming the electron wind to maintain the curren...
05/04/1999
5605607Web feeder with controlled electrostatic force and method
A method and apparatus for applying a uniform electrostatic force to a web moving between a pair of electrodes to create an electron wind that urges the web toward one of the electrodes controls the current forming the electron wind to maintain the curren...
02/25/1997
5587993Optical tape cartridge having improved tape movement mechanism
An optical tape cartridge is disclosed that is suitable for playing by an optical tape player. The tape player provides the cartridge with a voltage supply capable of supplying the optical tape with a relatively high voltage. The tape cartridge includes a...
12/24/1996
5518570Apparatus and method for bonding sheet material and its application to manufacture of flexible flat cable
There is disclosed an apparatus and method for bonding a sheet material to an elongated base material, in which the sheet material is transferred by a transferring device towards the base material, and the sheet material is bonded by a bonding device to t...
05/21/1996
5427021Calender for material webs or the like
A calender for material webs of paper or the like comprises at least one pressing gap. At least one temperature controlled tempering roller is disposed adjacent to the gap. A charging device is disposed adjacent to the gap. The charging device electrostat...
06/27/1995
5387298Apparatus and method for bonding sheet material and its application to manufacture of flexible flat cable
There is disclosed an apparatus and method for bonding a sheet material to an elongated base material, in which the sheet material is transferred by a transferring device towards the base material, and the sheet material is bonded by a bonding device to t...
02/07/1995
5275103Device for increasing heat transmission to the cooling cylinders in rotary-offset machines
A device for increasing heat transmission to the cooling cylinders in rotary-offset machines in order to cool a web of printed and dried stock. One or more charging electrodes are positioned where the web comes into contact with the cooling cylinders....
01/04/1994
5065196Electrophotographic printer
An electrophotographic printer is provided with: a photosensitive drum; a feeding device which feeds a continuous recording sheet; a transfer device which transfers a toner image formed on the photosensitive surface of the drum onto the sheet; a cleaning ...
11/12/1991
5019871Apparatus for electrostatically absorbing an image supporting material on an image supporting carrying member based on the kind of material used
An image forming apparatus includes a movable image carrying member, a latent imager for forming a latent image on the image carrying member, a developer for developing the latent image by a toner, a transferrer for transferring a toner image on the image...
05/28/1991
5009352Apparatus for conveying dielectric sheets
In an apparatus for conveying dielectric sheets used in copying machines, etc., sheets are held by electrostatic adhesion on the surface of a conveyor when such surface is electrically charged and thus conveyed by the conveyor, wherein a dielectric layer ...
04/23/1991
4978118Paper sheet transporting method that applies an electrostatic attractive force between a paper sheet and a reinforcing insulating sheet prior to feeding
A paper sheet transporting method comprises a step of superposing a paper sheet on a reinforcing sheet and a step of affording an electrostatic attractive force between the sheets due to electrostatic charges given thereto. The reinforcing sheet is made o...
12/18/1990
4856769Apparatus for conveying sheets
A conveyor surface composed of a single belt, a plurality of belts or of other structures such as a plurality of panels or other moving surface, or a fixed surface over which sheets of non-conductive material as paper or textiles can be caused to travel o...
08/15/1989
4852820Winding method and apparatus
A method of winding a continuously moving web, such as a flexible polymer film, by forming leading web edges and contacting them in sequence with a number of cores for adhesion thereon so as to start winding consecutive web portions onto the cores; when a...
08/01/1989
4462529Linear accelerator system for axially advancing an elongate workpiece
A linear accelerator system for linearly advancing an electrically conductive, elongate workpiece, such as tubing, along its longitudinal axis toward a cutoff station or the like includes a helically configured electrical coils concentrically disposed aro...
07/31/1984
4462528Electrostatic web clamp
An electrostatic field equal to or greater than a predetermined magnitude is established between the ends of a multiplicity of conductive bristles and a stationary conductive reference surface spaced from the end of the bristles for the puspose of rapidly...
07/31/1984
4393967Electrostatic clutch
An electrostatic clutch operable by the Johnsen-Rahbek effect, which may be used to operate, e.g., a print hammer device, is described, said clutch comprising a rotatable drum and a band engagable therewith, wherein the engagable surface of the drum is a ...
07/19/1983
4330194Method of driving copy material and photosensitive member of copying apparatus
In superposing a copy web and a photosensitive member one over another and transferring a toner image of the copy web by transfer printing from the photosensitive member carrying a toner image of an original formed by following the steps of charging the p...
05/18/1982
4253896Method of maintaining key between silicone belt and vinyl resin blanket by applying a corona discharge to the belt
A method of causing a vinyl resin blanket to adhere to a silicone belt during removal of a printing transfer sheet by applying a corona discharge to the belt....
03/03/1981
4211349Method and a device for applying an enlacing tape around an object
A method of and a device for applying an enlacing tape around an object, in hich the tape is taken along its path around the object to be enlaced by an endless conveyor belt by its being held urged against said belt and at the same time is fed by a tape fe...
07/08/1980
4197970Electrostatic drive system
An apparatus for transporting a recording medium, such as transparent electrophotographic film, which has a conductive layer, from a supply to a take-up roll. The apparatus includes a drive roller that has a conductive ring. The conductive layer of the fi...
04/15/1980
4129469Splicing process and apparatus
Webs such as thermoplastics films are spliced together by electrostatic charges while moving at equal speeds. Particularly useful in the production of thermoplastics such as polyethylene terephthalate films and in a preferred embodiment facilitates the th...
12/12/1978
4110027Image transfer mechanism
This specification discloses an improvement in a mechanism for transferring the image on an image-bearing member onto a continuous transfer medium by bringing said transfer medium into contact with the image on the image-bearing member. The mechanism of t...
08/29/1978
4046842Casting of polymeric film
AC electrostatic-pinning for the casting and quenching of polymeric film, especially polyethylene terephthalate film....
09/06/1977
4014605Transfer system with tailored illumination
In an electrostatographic copying system wherein a toner image is transferred from an original image support surface to a copy surface by an electrically biased transfer member generating a transfer field, the transfer field is tailored by providing a pho...
03/29/1977
4009508Method for forwarding and charging a bundle of filaments
Method for charging and forwarding a group of filaments to a web formation zone wherein an attenuator forwards the group of filaments along a path into impingement with a target electrode positioned downstream from the attenuator and in the filament path,...
03/01/1977
3981498Non-uniform charging of sheet material
A roller having an outer textured cylindrical surface applies, by means of a constant current, a non-uniform charge pattern over the surface of a sheet of material such as, for example, sheets of paper or plastic as used in xerographic transparencies and/...
09/21/1976
3966199Belt transfer loading system
An electrostatographic copying system in which an image is formed on an imaging surface and transferred at a transfer station to a copy sheet, where the copy sheet is electrostatically transported through the toner transfer station on a belt. As the sheet...
06/29/1976
3936177Electrostatic copying machine
An electrostatic copying machine comprises a photosensitive screen having a number of fine openings therein, means for forming on the screen a primary electrostatic latent image corresponsing to an original image, an electrostatic attracting device for el...
02/03/1976
 
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