Patents by Inventor Julius Harman

Julius Harman 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).

  • Pressure fluid operated feed drive system for a movable member
    Patent number: 4141281
    Abstract: A pressure fluid operated feed drive system for a movable member, and particularly for a slide of a machine tool, the system having a source of fluid pressure feeding a pair of interconnected piston and cylinder units connected between the member and a fixed support. The piston rod side areas of the pistons are arranged in effective opposition and valve means are provided to permit pressure fluid to be supplied selectively to the units to enable the member to be moved alternatively by a force derived from differing piston areas.
    Type: Grant
    Filed: June 28, 1976
    Date of Patent: February 27, 1979
    Assignee: Alfred Herbert Limited
    Inventors: Julius Harman, Michael E. Norman
  • Automatic machine tool and method of operation
    Patent number: 4038591
    Abstract: An automatic machining process using a programmed machining cycle, in which process a component previously machined according to the program is used to sense deviations from the expected component shape, such deviations being employed to effect corrective tool off-sets in the aforesaid or a subsequent machining cycle. The invention also embraces a machine tool capable of performing this process.
    Type: Grant
    Filed: July 21, 1975
    Date of Patent: July 26, 1977
    Assignee: Alfred Herbert Limited
    Inventor: Julius Harman