Patents by Inventor Anders N. Hansen

Anders N. Hansen 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).

  • Ball valve having valve housing with interior annular ridge for holding annular retaining element in position
    Patent number: 4709902
    Abstract: The valve member (8) of a ball valve is retained in the valve housing (1) of the valve between an annular seal (21) and an annular retainer (22) which is mounted through one of the branches of the valve housing. The annular retainer (22) is secured in the valve housing (1) by being pressed into said housing and in the valve housing projecting means (23) are provided for engaging the annular retainer. A well defined and optimum sealing pressure is achieved between the valve member (8) and the annular seal (21). According to a method of mounting the valve, the retainer is pressed through a branch and beyond projecting engagement means until the pressing-in force reaches a predetermined value corresponding to the sealing pressure aimed at.
    Type: Grant
    Filed: March 5, 1986
    Date of Patent: December 1, 1987
    Assignee: Broen Armatur A/S
    Inventor: Anders N. Hansen