Double Loop Patents (Class 105/103)
  • Patent number: 10557530
    Abstract: A belt tensioner includes a body configured to move along two or more axes and at least two idler rollers individually rotatably installed in the body and spaced apart from each other.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: February 11, 2020
    Inventors: Sang Yun Kim, Ji Sung Park
  • Patent number: 7055439
    Abstract: A contour or profile of a bore of a locomotive traction-motor support bearing structure, where such profile preserves the currently center-loading of the upper load zone but moves inboardly the lower load zone to a more general central location. The profile of the bore for the support bearing, according to the invention, takes into account not only truck-axle bending due to locomotive weight, but also that from motor tilt through bearing clearances, and couple action on the axle from heavy radial loads on PE support bearing and adjacent axle gear. The bore is configured such that the upper surface is horizontal, but the lower surface slopes downwardly in the outboard direction at an angle based on a function dependent upon the three misalignment factors.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: June 6, 2006
    Assignee: Magnus Division of LV Ventures, Inc.
    Inventors: Paul Bien, Robert B. Foster, John E. Macklin
  • Patent number: 4940002
    Abstract: A railway locomotive truck provides improved mountings and/or configurations for traction motor axle support bearings to improve their wear life. These include tilting, or sloping, of the support bearing bores to more closely match the orientations of the bearing journal surfaces on the axles which slope as a result of bending of the axles under the weight of the locomotive. An added feature is forming the bearing bores with a slight conicity to accommodate slight tilting of the traction motor under heavy loads due to taking up of the clearances in the motor support axle bearings. Other features include various ways of mountings or altering the construction of the axle bearings to provide the desired positioning.
    Type: Grant
    Filed: December 7, 1988
    Date of Patent: July 10, 1990
    Assignee: General Motors Corporation
    Inventor: Paul R. Bien
  • Patent number: 4122779
    Abstract: A dual track system whereby a transfer car can be turned at least in a minimum amount of space. The track system comprises a first set of parallel railroad-type rails of a standard size and cross section for the wheels of the lead truck of a transfer car and a second set of parallel railroad-type rails of the same size and cross section for the wheels of the following truck of the same transfer car. The first and second sets of rails are parallel to each other and overlapped with the right hand rails of each set lying in close proximity to each other and the left hand rails of each set lying in close proximity to each other. At the point where the transfer car is to begin its
    Type: Grant
    Filed: January 21, 1977
    Date of Patent: October 31, 1978
    Assignee: Armco Steel Corporation
    Inventor: Earl C. Vice