Patents by Inventor Robert H. Potter

Robert H. Potter 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).

  • Method of manufacturing screw jack tubes
    Patent number: 4189821
    Abstract: A screw tube assembly is disclosed for use in a screw jack or the like. The screw tube assembly comprises a hollow tube member in one end of which is formed a recess so as to reduce the tube member wall thickness. Into this recess an annular bushing is inserted. A tip portion of the recessed tube wall is crimped over the received bushing outer end to lock the bushing in the tube against axial movement. A chordal portion of the bushing and overlying tube is then displaced radially outwardly to form an external tube assembly key and to lock the bushing in the tube member against rotational motion.
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: February 26, 1980
    Assignee: Auto Specialties Manufacturing Company
    Inventor: Robert H. Potter
  • Inner tube for screw jack
    Patent number: 4127343
    Abstract: A screw tube assembly is disclosed for use in a screw jack or the like. The screw tube assembly comprises a hollow tube member in one end of which is formed a recess so as to reduce the tube member wall thickness. Into this recess an annular bushing is inserted. A tip portion of the recessed tube wall is crimped over the received bushing outer end to lock the bushing in the tube against axial movement. A chordal portion of the bushing and overlying tube is then displaced radially outwardly to form an external tube assembly key and to lock the bushing in the tube member against rotational motion.
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: November 28, 1978
    Assignee: Auto Specialties Manufacturing Company
    Inventor: Robert H. Potter