Patents Assigned to J & R Engineering Co., Inc.
  • Cask transporter
    Patent number: 6017181
    Abstract: A cask transporter for engaging, lifting and safely transporting casks containing nuclear waste material. The cask transporter comprises a gantry structure including a plurality of extendible telescoping boom assemblies coupled to a beam. A platform is coupled to and supports the gantry structure and couples the gantry structure to a driven tread mechanism. Couplers couple the beam to a cask to be transported, and cushioned restraints restrain a cask from colliding with the cask transporter.
    Type: Grant
    Filed: May 27, 1994
    Date of Patent: January 25, 2000
    Assignee: J&R Engineering Co., Inc.
    Inventor: Roger L. Johnston
  • Hydraulic boom for gantry and the like
    Patent number: 5865327
    Abstract: A hydraulic boom gantry and a method of lifting a load associated therewith. The gantry includes telescoping sections with a hydraulic cylinder mounted therein. A swiveling plate structure allows minor deviation between sets of telescoping sections. A collar structure and a pinning structure lock the telescoping sections together. A cam mechanism prevents accidental section retraction and a powered rigging device traverses a beam connecting the telescoping sections.
    Type: Grant
    Filed: November 4, 1992
    Date of Patent: February 2, 1999
    Assignee: J & R Engineering Co., Inc.
    Inventor: Roger L. Johnston