Patents Examined by Edgar Burr
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Patent number: 5893324Abstract: A stencil forming apparatus in which a stencil for a stencil printing formed from a rolled stencil sheet, includes: a guide roller; a rotatable platen roller having a central axis which is in parallel with the guide roller; a thermal head having a plurality of heat generating elements, and provided above the platen roller, wherein the stencil sheet pulled out of the rolled stencil sheet is passed through the platen roller and the thermal head through the guide roller and is subjected to thermally making fine holes thereon (the stencil of the stencil printing); and an intermediate roller provided between the platen roller and the guide roller wherein the intermediate roller is vertically movable in a predetermined range.Type: GrantFiled: October 30, 1997Date of Patent: April 13, 1999Assignee: Riso Kagaku CorporationInventor: Kaoru Kimura
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Patent number: 5893670Abstract: A gear drive system for a printer designed to print upon a continuous roll of paper and having a blade used to cut off printed portions of paper from the paper roll is implemented. The gear drive system has a drive gear which slips against a toothless portion of a driven gear while paper is being fed through the printer for printing by a print head. When printing stops, the drive gear reverses its rotation, causing the driven gear to engage the drive gear. A cutter blade is controlled by the driven gear, with the blade cutting off the paper as the drive gear is in reverse rotation. After the paper is cut, the drive gear resumes its forward rotation, rotating the blade away from the paper. After the blade has been rotated, the drive gear continues to turn, but slips on the toothless portion of the driven gear. Friction losses are minimized as the energy lost as friction is low and full torque is applied to both cutting and opening rotations of the cutter blade.Type: GrantFiled: August 28, 1997Date of Patent: April 13, 1999Assignee: International Business Machines CorporationInventors: James Gabriel Brewington, Richard Hunter Harris, Jeff David Thomas, Kevin Hunter Vorhees
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Patent number: 5893326Abstract: A device, apparatus and a method for containing a liquid within a liquid reservoir using a magnet and applying the liquid to a depression in a plate that is responsive to a magnet are disclosed. In particular there is provided a device for applying a liquid to a depression in a plate that is responsive to a magnet. The plate has a smooth flat surface. The device includes a reservoir for holding the liquid. The reservoir includes a wall which has an inner perimeter, an outer perimeter, a top surface and a bottom surface. The bottom surface of the wall is adapted to closely contact the smooth flat surface of the plate. The device also includes at least one ring magnet adjacent the outer perimeter of the wall of the reservoir.Type: GrantFiled: August 5, 1997Date of Patent: April 13, 1999Assignee: Jetta Company LimitedInventor: T. S. Wong
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Patent number: 5893322Abstract: A process and a device are described for production of a dial by imprinting a blank with an imprint which enable cost-effective production in very high quality even with small quantities. Data entered via an input device 110 are delivered to a data management device 120, which positions the dial pattern on a printing master defined by the data entered. If a pattern is not stored in memory, a new pattern is requested from a design device 130 and delivered to the data management device 120, which enters the printing master into an output device 140. The output device 140 generates the printing master according to drawing data and outputs it to a printer 200 which creates a prefixed toner image 11 on a carrier sheet 10.Type: GrantFiled: February 19, 1997Date of Patent: April 13, 1999Inventors: Alfred Schneider, Klaus Schafer
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Patent number: 5893323Abstract: A printing drum supporting device for a stencil printing machine comprises a forward side-plate and a rear side-plate disposed at a certain distance therebetween, a frame for supporting the drum, a rail device disposed between the two side-plates for guiding the frame, and a pipe disposed between the two side-plates. The frame includes a forward plate and a rear plate disposed at a certain distance therebetween. The rear plate has a hole. The frame supports a rotatable cylindrical printing drum between the forward plate and the rear plate. The frame is detachably supported by the rail device. The frame can slide along the rail device between a printing position inside the two side-plates and a disengagement position outside the same. The pipe is fixed between the two side-plates. An end portion of the pipe is protruding outside through the rear side-plate.Type: GrantFiled: June 16, 1998Date of Patent: April 13, 1999Assignee: Riso Kagaku CorporationInventor: Shigenori Ishii
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Patent number: 5893327Abstract: An inking unit for a rotary printing press with inking rollers, at least one of which has a hard outer cylindrical surface, including a device having nozzles for applying fresh cleaning fluid onto the respective inking rollers and a device for squeegeeing cleaning fluid soiled with ink residues from the roller of the inking unit having the hard outer cylindrical surface, further includes a drip pan disposed beneath the nozzles and formed with a drain having a discharge end, the squeegeeing device being a doctor blade device and having assigned thereto a collection vessel wherein the drain discharge end terminates, the collection vessel being periodically removable from the printing press for emptying therefrom the collected cleaning fluid soiled with ink residues, and a follow-up trough assigned to the drain discharge end, the follow-up trough being swingable beneath the discharge end when the collection vessel is removed from the printing press.Type: GrantFiled: March 20, 1998Date of Patent: April 13, 1999Assignee: Heidelberger Druckmaschinen AGInventors: Uwe Dengel, Peter Heiler
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Patent number: 5890818Abstract: An apparatus and method for removing fractions of a pixel from bar code bars to maintain the correct distance between adjacent correctly sized code forming bars. Thus, the distance between adjacent code forming bars will be constant and accurate. The foregoing is accomplished by varying a parameter of the beam or ink droplet that is used to produce the bar so that the bar width and space between adjacent code forming bars will be accurately maintained. Hence, bars of a bar code will be accurately reproduced to enable the bar code to be accurately read.Type: GrantFiled: June 30, 1997Date of Patent: April 6, 1999Assignee: Pitney Bowes Inc.Inventor: Ronald P. Sansone
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Patent number: 5890428Abstract: A method of transferring a decorative stenciled image to an irregular object utilizes flexible plastic static cling sheet material as the stencil medium. The cutout stencil is shaped approximately to the size of the surface of the object that will receive the image and conforming the stencil medium to the surface smoothly, adhering the sheet material such that the static cling attribute of the material will bond to the object's surface without lifting or breaking that would cause gaps or bubbles. The method is completed by well-known steps of applying stencil ink or paint by brush or other suitable applicator, removing the stencil medium and optionally curing the image by baking or other fixation step.Type: GrantFiled: June 2, 1997Date of Patent: April 6, 1999Inventor: Mary B. Hetz
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Patent number: 5890427Abstract: Stamping part so fitted inside the casing (3) of a stamp that it is movable in the vertical direction, pressed by means of a know (4), which stamping part, to enable stamping, is provided with stamping pieces (10-12) placed in socket parts (19). The sockets are connected together in at least one endless band (16,17) by means of connecting lobes (20) between the foot ends of the sockets so that in connecting lobes and socket foot parts form a band. Moreover, the stamping part has a vertical framework (7,9) whose top and bottom ends are so rounded that the band can be revolved around said framework to select a desired stamp.Type: GrantFiled: August 28, 1997Date of Patent: April 6, 1999Assignee: Leimasinteollisuus OyInventor: Seppo Lindqvist
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Patent number: 5890819Abstract: There is disclosed a thermal printer system in which variations in voltage (and the energy corresponding thereto) supplied to resistance elements of a print head are electronically compensated for. The voltage at the print head is monitored as a line of pixels is being printed pixel by pixel. Units of energy (corresponding to the measured voltage) which have been supplied to the resistance elements are counted, the counts are added together pixel by pixel to obtain cumulative totals and the cumulative totals converted into "compensating" numbers. An image data number for each pixel is compared to the corresponding compensating number, and a respective resistance element is pulsed (energized) a requisite number of times until the image data and compensating numbers match thus achieving a desired level of print density corresponding to the respective image data number.Type: GrantFiled: October 13, 1994Date of Patent: April 6, 1999Assignee: Eastman Kodak CompanyInventor: John Thomas Compton
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Patent number: 5890431Abstract: Ink is supplied to an ink duct in a rotary printing press from an ink cartridge. The cartridge receives a piston which can be pushed into the cartridge from one end to force ink out of the discharge end of the cartridge. This piston is moved through the cartridge by a helical gear in the form of a rotatable spindle driven by an electric motor.Type: GrantFiled: September 12, 1997Date of Patent: April 6, 1999Assignee: Koenig & Bauer-Albert AktiengesellschaftInventor: Karl Robert Schafer
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Patent number: 5887995Abstract: A computer system includes a touchpad with one or more overlays providing the computer system with various input control functions. The overlay preferably includes tactile response elements to provide tactile feedback to the operator as an indication that a portion of the overlay has been pressed. The touchpad includes a capacitive sensor. Electronics coupled to the touchpad determine which portion of the touchpad sensor surface area has been touched or pressed. The amount of tactile feedback to the computer operator can be varied through the design and construction of the overlay and the overlay may be provided with no tactile feedback, if desired. As such, numerous overlays can be placed on the touchpad of the computer system, thereby providing the computer system with multiple different input control functions. The computer operator may manually input the type of overlay being used into the computer.Type: GrantFiled: September 23, 1997Date of Patent: March 30, 1999Assignee: Compaq Computer CorporationInventor: Steven D. Holehan
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Patent number: 5888075Abstract: The auxiliary apparatus comprises a base plate having a plurality of wiring portions on one face, a plurality of probes, and assembling means for assembling the probes in parallel to each other into the base plate. The assembling means presses the probes by a needle pressing portion extending in the arranging direction of the probes, bringing at least a part of deformed portions of the probes into contact with the wiring portions of the base plate, and each probe is pressed at the tip end of its needle front portion continued to one end of the deformed portion against an electrode portion of a device under inspection. Thereby, the probe is sandwiched between the base plate and the needle pressing portion to be maintained in that state and, in addition, scrapes off a film such as an oxide film existing in the electrode portion by the tip end of the needle front portion.Type: GrantFiled: November 24, 1997Date of Patent: March 30, 1999Assignee: Kabushiki Kaisha Nihon MicronicsInventors: Yoshiei Hasegawa, Eichi Osato
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Patent number: 5887998Abstract: The tractor-feed unit has a pair of first and a pair of second rollers rotatably supported by frame members. A pair of endless tractor belts are wound around the first and second pair of rollers. The tractor belt has protrusions, with which sprocket holes formed in a continuous sheet are engaged. A central portion of each of the frame members is bent to form a guide member, which is engaged with an upper and peripheral edge of a tractor belt, so that a tractor belt is deflected downward. Thus, the protrusions are separated from the sprocket holes to a position, corresponding to a guide member, below the continuous sheet.Type: GrantFiled: October 8, 1997Date of Patent: March 30, 1999Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventor: Yutaka Ishikawa
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Patent number: 5887987Abstract: An image recording device being capable of setting a separating pawl and a print head at an appropriate location by a position changeover operation at one point according to types of recording sheets. The device comprises a sheet feeder having the separating pawl which is switched over to an effecting position or non-effecting position according to types of recording sheets, and a recording section having a print head for recording images onto the recording sheets passed through between a platen and the print head. The distance between the print head and the platen can be changed over, and linking to this changeover operation, the positions of the separating pawl is switched over.Type: GrantFiled: April 9, 1998Date of Patent: March 30, 1999Assignee: Minolta Co., Ltd.Inventor: Ichiro Sawano
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Patent number: 5887524Abstract: A washing unit in the printing unit of rotary printing presses, with a driven brush roller. The brush roller can be brought into contact against the cylindrical surface of a cylinder to be cleaned. The washing unit also includes a cleaning agent feed device, a wiper on the brush roller and a housing to catch the dirty washing fluid ejected from the brush roller. The arrangement allows the washing unit to function correctly and reliably even when it is located above the cylindrical surface to be cleaned.Type: GrantFiled: January 20, 1998Date of Patent: March 30, 1999Assignee: Heidelberger Druckmaschinen AktiengesellschaftInventor: Karl-Heinz Seefried
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Patent number: 5888001Abstract: The collecting tray of a ink-jet printer is equipped with a guard to prevent the paper immediately after exiting from the printer to fall to the bottom of the tray. The guard is much narrower than the width of the tray so that the guard tilts the paper. A succeeding sheet of paper pushes the tilted paper until the tilted paper is pushed beyond the end of the guard and falls to the bottom of the tray after a time delay for the ink to dry.Type: GrantFiled: June 1, 1998Date of Patent: March 30, 1999Assignee: Avision, Inc.Inventor: Thomas Sheng
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Patent number: 5887996Abstract: A deskewing and registering device for an electrophotographic printing machine. A single sensor determines the position and skew of a sheet in a paper path and generate signals indicative thereof. A pair of independently driven nips forward the sheet to a registration position in skew and at the proper time based on signals from a controller which interprets the position signals and generates the motor control signals. An additional single sensor can be used at the registration position to provide feedback for updating the control signals as rolls wear or different substrates having different coefficients of friction are used.Type: GrantFiled: January 8, 1998Date of Patent: March 30, 1999Assignee: Xerox CorporationInventors: Vittorio R. Castelli, Osman T. Polatkan
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Patent number: 5884559Abstract: A printing blanket according to the present invention is formed by laminating a non-stretchable layer obtained by winding a thread in helical fashion in the circumferential direction, a compressible layer comprising an elastomer and in a porous and a seamless cylindrical shape, and a surface printing layer similarly comprising an elastomer and in a seamless cylindrical shape in this order, whereby high-quality prints can be obtained in a wide range, and the degree of the degradation of printing properties due to the reduction in reaction force is low.Type: GrantFiled: December 10, 1997Date of Patent: March 23, 1999Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Hiromasa Okubo, Toshikazu Ogita, Seiji Tomono, Takamichi Sagawa
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Patent number: 5884561Abstract: A method of releasing a sheet from a blanket cylinder of a printing machine, wherein the sheet is guided by an impression cylinder and held by grippers thereof, includes moving, with respect to the impression cylinder, elements of the impression cylinder holding the sheet, in a direction relatively counter to the direction of rotation of the impression cylinder, so as to produce an enlarged pull-off angle after a leading edge of the sheet has passed a printing nip between the blanket and the impression cylinders; and a device for performing the foregoing method. The background to the invention is the knowledge that higher tensile forces on a sheet are disadvantageous, and the object was therefore set of making available a method and a device in which the tensile force is reduced. This is achieved by means of a method in which, in order to produce an enlarged pull-off angle (.gamma.Type: GrantFiled: April 9, 1997Date of Patent: March 23, 1999Assignee: Heidelberger Druckmaschinen AGInventors: Norbert Thunker, Axel Hauck