Patents by Inventor Don W. Bellow

Don W. Bellow 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: 4842314
    Abstract: First and second cap members, each cap substantially cylindrical in shape and of an interior diameter slightly larger than the outer diameter of the ends of a section of drill casing. The cap members are open ended at a first end and are sealed via a bottom on a second end, for defining an annular space there within for slipping on to the end portions of a section of casing. There is further provided a lifting lug along the length of the wall of the cap member, the lifting lug including a bore through its body for attaching a length of steel cable therethrough, each lifting lug and steel cable attached thereto forming the lifting assembly of the second ends of the cable attached to a common line for lifting. Each cap member would further include a handle portion extending from the end plate of the cap along its side wall attached to the lifting lug for defining a means for manually lifting the cap and positioning each cap upon the end portion of the section of casing.
    Type: Grant
    Filed: March 24, 1988
    Date of Patent: June 27, 1989
    Inventor: Don W. Bellow