Moved By Continuously Rotating Power Drive Intermittently Applied Patents (Class 400/192)
  • Patent number: 10329100
    Abstract: A tie plate straightener includes a plurality of rollers having varying cross-section and differing elevations. The tie plate straightener includes directional wheels between the rollers and disposed in alignment with the lower elevations of the rollers. The straightener receives tie plates at an input and rotates the tie plates when the tie plate engages the directional wheels. The tie plate is thereby oriented and/or positioned so that the tie plate is supported above the directional wheels.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: June 25, 2019
    Assignee: B & B METALS, INC.
    Inventor: William R. Coots
  • Patent number: 6695495
    Abstract: An ink density closed loop control system for an ink ribbon of an impact printer having a reservoir roller formed of an ink absorbent material with at least one or more channels within the reservoir roller fluidly connected to a pump and ink supply. A transfer roller can contact the reservoir roller for imparting ink to the ink ribbon. A sensor senses the relative amount of ink on the print ribbon and an electrical drive responsive to the sensor drives the pump for a flow of ink to the one or more channels. The sensor can sense ink on different segments of the ribbon and, with two or more channels in the reservoir roller can distribute ink to two or more segments of the reservoir roller depending upon the ink sensed at a particular segment of the ribbon. A further enhancement of this invention provides a multi-viscosity ink to compensate for changes in ambient temperature conditions.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: February 24, 2004
    Assignee: Printronix, Inc.
    Inventors: Dennis R. White, Jeng-Dung Jou, Lihu Chiu, Gordon B. Barrus, Y. Grant Chang
  • Patent number: 6450634
    Abstract: A print medium with encoded data and a print media detection system for use in detecting at least one characteristic of the sheet of print medium based on the encoded data are disclosed. The encoded data is designed to minimize its visual perceptibility. The print media detector is designed to recognize various characteristics of print media based upon the encoded data and transmit information regarding these characteristics to a printing device so that one or more operating parameters of the printing device can be adjusted to help optimize print quality for the particular characteristics of a particular print medium. A printing device including the print medium and print media detection system is also disclosed. A method of detecting one or more characteristics of print media used in a printing device is additionally disclosed.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: September 17, 2002
    Assignee: Hewlett-Packard Company
    Inventors: Steven B. Elgee, Jefferson P. Ward
  • Publication number: 20020041782
    Abstract: A ribbon mechanism mounted in the lid of a printer includes a ribbon carriage pivotally coupled to the lid for folding out of the lid by virtue of its mass when the lid is open and for folding in the lid as the lid is closed. The invention comprises a clutch disk made of plastic, which may be used in a printer mechanism. The design utilizes two different injection molded plastic clutch disks that run face to face to produce relatively high dynamic and low static frictional forces. The clutch assembly uses raised areas on one of the pair of clutch disks. The raised areas allow a better overall contact between the disks so as to achieve more desirable coefficients of friction. The materials chosen for the clutch disks not only have the desirable coefficients of friction, but also have good wear characteristics against each other.
    Type: Application
    Filed: September 20, 2001
    Publication date: April 11, 2002
    Inventors: Philip Mastinick, Lawrence E. Smolenski
  • Patent number: 5605402
    Abstract: This invention relates to a cartridge 11 for a printing ribbon 13 comprising a container 12 which houses an inked ribbon 12, a ribbon feeding roller 18 and a ribbon inking element 14. The inking element 14 is selectively actuated from a rest condition in which, during the cartridge utilization initial phase, the inking element does not supply the ribbon 13 with ink, to a work condition in which the inking element 14 supplies the ribbon with ink. A reducing unit 34 and a cam 33,42 are provided for automatically actuating the inking element 14 and guide it from the rest to the work condition, when a predetermined number of turns is reached by the feeding roller 18 for advancing the ribbon.
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: February 25, 1997
    Assignee: Baltea S.p.A.
    Inventor: Sergio Uggetti
  • Patent number: 4244289
    Abstract: This invention relates to apparatus for marking strip material such as cinematographic film, the apparatus comprising means for feeding the film from a film supply station to a film take-up station via a printing station, means for feeding a tape carrying transferable marking material from a tape supply station to a tape take-up station via the printing station, said printing station including two movable members one carrying a printing block and the other carrying a back-up platen, the apparatus being arranged such that at said printing station the film and tape move between said two members in a superimposed relationship and such that when the printing block and platen are moved into co-operating, adjacent, relationship, selected print elements on the printing block causing marking material to be transferred from the tape to the strip material thereby to mark or print the strip material with data indicated by the selected print elements.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: January 13, 1981
    Assignee: Oakside Industrial, #19167, Holdings, Ltd.
    Inventor: Stephen Collins