Patents by Inventor Robert Sheets

Robert Sheets has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9889529
    Abstract: A system for preloading tension in a stud using an anti-seizure spacer for tapered thread connections is provided. The system comprises a hydraulic tensioning device including a nut configured for threadably engaging the stud, a foot, a cylinder having a first bore defined therein and a surface for engaging the foot, and a piston movably positioned within the first bore, wherein a hydraulic cavity is defined therebetween. The device further includes a puller screw including male tapered threads configured for being threadably coupled with female tapered threads on the stud. The puller screw includes a head configured for engaging a surface of the piston. The system also includes a spacer positioned between the male tapered threads of the puller screw and the female tapered threads of the stud. A method for preloading tension in a stud using the spacer is also provided.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: February 13, 2018
    Assignee: Riverhawk Company
    Inventors: Robert Sheets, Daniel Johnston
  • Publication number: 20160318139
    Abstract: A system for preloading tension in a stud using an anti-seizure spacer for tapered thread connections is provided. The system comprises a hydraulic tensioning device including a nut configured for threadably engaging the stud, a foot, a cylinder having a first bore defined therein and a surface for engaging the foot, and a piston movably positioned within the first bore, wherein a hydraulic cavity is defined therebetween. The device further includes a puller screw including male tapered threads configured for being threadably coupled with female tapered threads on the stud. The puller screw includes a head configured for engaging a surface of the piston. The system also includes a spacer positioned between the male tapered threads of the puller screw and the female tapered threads of the stud. A method for preloading tension in a stud using the spacer is also provided.
    Type: Application
    Filed: April 29, 2016
    Publication date: November 3, 2016
    Applicant: Riverhawk Company
    Inventors: Robert Sheets, Daniel Johnston