Patents Examined by Moshe I. Cohen
  • Patent number: 5195833
    Abstract: A typewriter or similar machine with a ribbon and, if required, a correction tape on a pivotable support which can be lifted or lowered, the ribbon or the correction tape being movable in steps. The pivoting of the ribbon is necessary in order to give a view of the typed text. Since it is selectively possible to type or to correct, it is necessary to lift the support for the ribbon or the correction tape to different levels, so that the particular ribbon required is opposite the line to be printed. The transport of the ribbons as well as the lifting of the support is performed by means of a reciprocation-rotation motor. The respective rotational movement of the reciprocation-rotation motor is preferably transferred to one of the ribbons by toothed wheels. The ribbon can be moved on far enough so that a fresh ribbon surface is available. The same can be done for the correction tape.
    Type: Grant
    Filed: August 1, 1988
    Date of Patent: March 23, 1993
    Assignee: Ta Triumph-Adler Aktiengesellschaft
    Inventors: Rudolf Schmeykal, Johannes Haftmann
  • Patent number: 5176076
    Abstract: A screen printer effects a printing by moving a squeegee in contact with a screen to force a printing paste through a printing pattern formed on the screen. The squeegee is held by a squeegee head. The squeegee head includes a support member for supporting the squeegee in such a manner as to move the squeegee upward and downward, and at least one moving member which swingably supports the support member and is movable together with the support member. When the squeegee is to be exchanged, only the support member is angularly movable relative to the moving member so as to provide a sufficient space above the screen to facilitate the exchange of the squeegee.
    Type: Grant
    Filed: February 4, 1991
    Date of Patent: January 5, 1993
    Assignee: Hitachi Techno Engineering Co., Ltd.
    Inventors: Nobuyuki Azuma, Noriaki Mukai, Yasusuke Hayashi
  • Patent number: 5168806
    Abstract: An inking unit uses circumferentially offset elongated flexible doctor blades to form an ink chamber into which the screened surface of an ink roller immerses itself. Free ends of the spaced flexible doctor blades can be forced into or out of contact with the screened roller surface in accordance with the pressure of the ink in the ink chamber.
    Type: Grant
    Filed: April 2, 1991
    Date of Patent: December 8, 1992
    Assignee: Koenig & Bauer AG
    Inventors: Wolfgang O. Reder, Georg Schneider
  • Patent number: 5165339
    Abstract: A detachable scraper attachment for a flood bar having a pair of opposing opposite edges comprising a portion adapted to mount on a portion of the flood bar holder, a flange having an upper and lower edge, the lower edge being generally arcuate, the upper edge attached to the channel portion, and means for detachably affixing the scraper attachment to the edges of the flood bar.
    Type: Grant
    Filed: September 12, 1990
    Date of Patent: November 24, 1992
    Assignee: M & R Printing Equipment, Inc.
    Inventors: Richard Hoffman, Aleksander Szyszko
  • Patent number: 5161462
    Abstract: Disclosed is an ink supplying apparatus which can drive and rotate a fountain roller at an arbitrary speed independently of the peripheral speed of a roller adjacent to the fountain roller when an ink fountain is fitted to a rotary press, which does not require large-scale maintenance and inspection, which is free from any danger, and which is equipped with an ink fountain having a fountain roller capable of being fitted to and removed from a suitable position corresponding to a maximum printing width.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: November 10, 1992
    Assignee: Tokyo Kikai Seisakusho, Ltd.
    Inventors: Yuichi Okamura, Yuko Tomita
  • Patent number: 5154120
    Abstract: A plate cylinder wherein at least two thin sheets are disposed between the plate cylinder and its printing plate. These thin sheets each have surfaces with different coefficients of sliding friction. The smoother sides of the thin sheets lie on top of one another and the rougher sides lie against the surface of the cylinder and the underside of the printing plate, respectively. Thus the friction between the cylinder and the printing plate is reduced considerably, thereby facilitating retightening of the printing plate on the plate cylinder as well as aligning the printing plate to come into register.
    Type: Grant
    Filed: November 2, 1990
    Date of Patent: October 13, 1992
    Assignee: Man Miller Druckmaschinen GmbH
    Inventor: Claus Simeth
  • Patent number: 5148744
    Abstract: This invention relates to a micro-curvature adjustable device for curve screen printing presses and ironing presses and in particular to one including an upper cover provided with a tool post in a front side and an adjusting mechanism on an upper surface, an oscillating plate mounted below the upper cover and having a front seat, a horizontal sliding block for passage of a shaft, and a pair of clamping arms in the front side, an oscillating arm arranged on the upper cover and connected with a front linking block, a downward oscillating block and a rear linking block, a rear connecting arm mounted under the upper cover and having a rear horizontal groove and a plurality of rear vertical sliding blocks in an inner side, an axle seat arranged between the front connecting plate and the rear connecting plate and having a pivoted gear engaged with a front toothed rack and a rear toothed rack, a front connecting plate provided with a front horizontal groove and a plurality of vertical sliding blocks at an inner side
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: September 22, 1992
    Inventor: Trong C. Chiang
  • Patent number: 5145268
    Abstract: In the proposed cassette containing an endless inked ribbon, at least one pulling roller is partly supported in a rotatable manner, in at least one slot provided in a wall of the cassette, and is at least partly supported in a rotatable manner in a carriage which is mobile relative to a wall of the cassette and is engaged with elastic means able to urge said roller against abutment means on said slot.
    Type: Grant
    Filed: November 14, 1990
    Date of Patent: September 8, 1992
    Assignee: Incas Holding S.p.A.
    Inventor: Alberto Cavallini
  • Patent number: 5143462
    Abstract: A method for backspacing and/or backspacing/erasing on a computer, electronic, or other keyboard comprises activation of the backspacing function via thumb movement. Such activation can be accomplished more easily, more efficiently, and more ergonomically effectively than prior art methods because it can be done without averting the eyes from the text copy and does not entail moving or uncomfortable stretching of the hands.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: September 1, 1992
    Assignee: Keyboard Advances, Inc.
    Inventor: Robert D. Klauber
  • Patent number: 5143055
    Abstract: Somatic acoustic chair provided with sound housings and having person-supporting means carried resiliently by framework supported on a relatively fixed base. The person-supporting means includes a back rest, a seat, and a foot rest so carried individually and apart from one another. The framework is mounted pivotally on the base to enable a person so supported to tilt the chair backward to at least a semi-reclining position.
    Type: Grant
    Filed: October 3, 1991
    Date of Patent: September 1, 1992
    Inventor: Byron C. Eakin
  • Patent number: 5136941
    Abstract: Doctor blade apparatus for use with a form cylinder of a printing machine has a doctor blade holder which is mounted in a series of slide assemblies spaced along the length of the blade holder so that the holder can be adjusted both in directions parallel to and perpendicular to the cylinder axis thereby providing accurate positioning of the blade on the cylinder.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: August 11, 1992
    Assignee: Windmoller & Holscher
    Inventors: Herbert Lubke, Volker Schroder
  • Patent number: 5136944
    Abstract: A ticket dispensing mechanism is disclosed having a housing, a worm and drive, an idler roller, and a drive roller that engages the worm. Rotating the worm rotates the drive roller to advance a strip of tickets placed between the drive roller and the idler roller. A sensor detects ticket movement and a control circuit controls the worm drive motor to rotate the worm until the appropriate number of tickets have been dispensed. A slotted mounting for the drive roller accommodates tickets of different thickness, and locks the tickets against unauthorized withdrawal.
    Type: Grant
    Filed: September 26, 1990
    Date of Patent: August 11, 1992
    Assignee: Moscow Electronics Company
    Inventors: William C. Gustafson, Thad C. Brinkley
  • Patent number: 5136940
    Abstract: An auxiliary drive for the ductor roller of a sheet-fed offset press continues to advance the ductor roller in small angular steps during press stoppages. The damping unit drive which continues to run during press stoppages drives the ductor roller stepwise by way of an eccentric drive linkage and a ratchet wheel disposed on the ductor roller journal. When the press is running, a rocker lever in the drive linkage can be pivoted away from the throw zone of the eccentric for example, by a piston actuated by oil pressure of the press's oil supply system. In alternative embodiments, the lever arm can be pivoted away by a compressed air cylinder or a suction cylinder which become operative when the press is running.
    Type: Grant
    Filed: April 26, 1991
    Date of Patent: August 11, 1992
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Joachim Olek, Heinrich Ochs, Kurt Difflipp
  • Patent number: 5131327
    Abstract: A plate winding apparatus, includes a winding rod which is rotatably received in a first groove, bearing plates, plate holding springs, levers, and plate winding springs. The bearing plates have axial holes each having a diameter larger than that of each of both end portions of the winding rod and pivotally support the winding rod and movably support the winding rod in a direction to increase a distance between the winding rod and a inner wall surface of the first groove. The plate holding springs are fitted in holes formed in a circumferential surface of the winding rod in an axial direction thereof and bias the winding rod against the inner wall surface of the first groove. The levers are fixed on the both end portions of the winding rod.
    Type: Grant
    Filed: September 20, 1990
    Date of Patent: July 21, 1992
    Assignee: Komori Corporation
    Inventors: Yasuo Nagasono, Hiroshi Takahashi, Masakazu Kurihara
  • Patent number: 5129750
    Abstract: A printer includes a clam shell mechanism having a frame rotatably mounted on a base. A platen is mounted on the frame. A print head for acting in cooperation with the platen is mounted on the base. A locking lever mounted on the base cooperates with a shaft mounted on the first frame for selectively maintaining the first frame in a closed position. A lock control member switches the locking means between maintaining the first frame in the closed position and allowing the first frame to rotate to an open position wherein the platen is displaced from the print head.
    Type: Grant
    Filed: September 19, 1990
    Date of Patent: July 14, 1992
    Assignee: Seiko Epson Corporation
    Inventor: Chihiro Otsuki
  • Patent number: 5125337
    Abstract: To distribute loading, and reduce wear, on filler inserts upon roll-off of printing machine cylinders formed with axial grooves, such as rubber blanket cylinders in offset printing machines, the filler insert is formed with an axially curved edge or surface (9, 10; 16, 18) which, either, is provided at the engagement surface of the respective filler insert element with the bottom wall (23, 24) of the groove (3, 4) or, alternatively, at the outer or top surface. The degree of curvature is such that, with respect to a flat surface tangent to the curved surface, a spacing or gap of, at the most, 0.2 mm, and preferably only about 0.1 mm, will result.
    Type: Grant
    Filed: January 14, 1991
    Date of Patent: June 30, 1992
    Assignee: Man Roland Druckmaschinen AG
    Inventor: Reinhard Zeller
  • Patent number: 5123353
    Abstract: A lock-up mechanism for use in securing a flexible printing plate 14 in a printing press, the flexible printing plate 14 having a leading edge 14 and a trailing edge 16. The lock-up mechanism has a plate cylinder 10 having a longitudinal groove 20 in an outer surface thereof and a lock-up body 22 contained in the longitudinal groove 20 of the plate cylinder 10. The lock-up body 22 has a longitudinal slot 24 having a narrow opening 26 formed by opposed nose sections 28, 30 of the lock-up body 22, the nose sections each having an inner surface, 36, 38. A rotatable mechanism 40 in the longitudinal slot 24 releasably secures the leading and trailing edges 16, 18 of the flexible printing plate 14, the flexible printing plate 14 being wrapped around the outer surface of the plate cylinder 10. A first apparatus 48, 51, 55, 36 provides at least one predetermined lock position of the rotatable mechanism 40 wherein the leading and trailing edges 16, 18 of the flexible printing plate 10 are secured.
    Type: Grant
    Filed: July 3, 1991
    Date of Patent: June 23, 1992
    Assignee: Rockwell International Corporation
    Inventor: John T. Beck
  • Patent number: 5117751
    Abstract: A clamping apparatus for use in screen printing operations. The clamping apparatus has an angle iron having an upright back, a lower lip bound to the upright back, and an upper lip bound to the upright back. At least one clamp slide assembly is slidably disposed on and along the upper lip of the angle iron. The clamping apparatus is pivotally secured to a silkscreen table in order for readily engaging a silkscreen frame. A method for positioning a printing screen over a screen table which includes clamping with a pair of clamp slide assemblies a silkscreen frame of a printing screen against the lower lip of the angle iron. The silkscreen frame may be easily elevated as desired.
    Type: Grant
    Filed: July 28, 1988
    Date of Patent: June 2, 1992
    Inventor: Carl D. Thompson
  • Patent number: 5117754
    Abstract: An offset sheet-fed press is provided with a cleaning apparatus for an impression cylinder. The cleaning apparatus includes a cleaning unit which includes a frame member, a magazine roll provided with a spring brake for a cleaning cloth, a wind-up roll for winding up the cleaning cloth while stepwisely transferring the cleaning cloth by a wind-up torque motor, guide rolls for guiding the cleaning cloth so that the cleaning cloth faces the outer surface of the impression cylinder between the magazine roll and the wind-up roll, and a plurality of air cylinders arranged in parallel and disposed on the rear surface side of the cleaning cloth facing the impression cylinder. The cleaning unit further includes a cleaning cloth press assembly provided with a linear press blade linerally pressing the cleaning cloth against the impression cylinder on the side of the magazine roll, a plate-like guide disposed on the side of the wind-up roll and a surface press pad pressing the surface of the impression cylinder.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: June 2, 1992
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Yoshiki Nozaka, Shinya Fujino, Hiroshi Miyama, Isao Kawakami, Hitoshi Otsuka
  • Patent number: 5115740
    Abstract: An improved sheet-feed drum for guiding and transferring sheets in a rotary printing press is provided with a plurality of round brushes rotatably mounted in closely spaced relation on a plurality of longitudinally extending supporting rods disposed about the periphery of the drum substantially parallel to the drum axis. The brushes are disposed on the support rods over the entire width of the sheets and have bristles made of an ink-repellent material.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: May 26, 1992
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Helmut Emrich, Uwe Sabrowski