Patents Assigned to ASF-Keystone, Inc.
  • Patent number: 6644214
    Abstract: A side bearing provides constant contact between a truck bolster and a railway car body. The side bearing includes a base member having a central portion mounted on top of the bolster. The base member includes end portions which extend downwardly and outwardly fore and aft beyond the bolster. A top member is mounted on the base member for vertical movement relative thereto. The end portions of the top and base members define pockets. Resilient members, such as springs, are positioned in each of the pockets for urging the top member upwardly relative to the base member. A post formed on the central portion of the top member mates with a reciprocal aperture formed on the central portion of the base member.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: November 11, 2003
    Assignee: ASF-Keystone, Inc.
    Inventor: Ralph H. Schorr
  • Patent number: 6357612
    Abstract: A self-positioning cushioning device adapted to be mounted in the end of a rail car sill includes a hydraulic cylinder and yoke. A piston rod extends from the cylinder and is joined to one end of a yoke. The other end of the yoke is joined to a rail car coupler through a drawbar. A preloaded stack of elastomer pads is confined in a pocket in the yoke between a pair of stop plates which extend laterally of the yoke to engage stops during movement of the yoke, rod and piston in response to buff and draft impacts. The cylinder is filled with pressurized hydraulic fluid which maintains the piston in a central neutral position with the stop plate adjacent to coupler held against stops on the rail car sill. Buff impacts are cushioned first by the cylinder and at the end of the stroke by both the cylinder and the spring. Draft impacts are cushioned by both the cylinder and the spring.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: March 19, 2002
    Assignee: ASF-Keystone, Inc.
    Inventors: Jay P. Monaco, Julius I. Perchets, Mark P. Scott
  • Patent number: 6286437
    Abstract: An outlet gate assembly for a hopper type railway car includes a frame defining a discharge chute. Upper and lower gates are mounted in the frame. A compact rack and pinion opening and closing drive moves the upper gate between open and closed positions. The drive includes a pair of racks mounted on the lower surface of the upper gate and extending into the discharge chute through openings in the frame. The openings are sealed during transit and discharge of lading.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: September 11, 2001
    Assignee: ASF-Keystone, Inc.
    Inventor: Anthony L. Lucas
  • Patent number: 6279765
    Abstract: A railcar cushioning device with a gas charged cylinder and a piston contained in the cylinder for cushioning buff and draft impacts. A spring assembly is contained in the cylinder between the piston and an end of the cylinder to locate the piston in a neutral position.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: August 28, 2001
    Assignee: ASF-Keystone, Inc.
    Inventor: Jay P. Monaco
  • Patent number: 6199708
    Abstract: A railcar cushioning device with a gas charged cylinder and a piston contained in the cylinder for cushioning buff and draft impacts. An elastomer spring is contained in the cylinder between the piston and an end of the cylinder to locate the piston in a neutral position.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: March 13, 2001
    Assignee: ASF-Keystone, Inc.
    Inventor: Jay P. Monaco