Patents by Inventor H. Wade White

H. Wade White 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).

  • Well tubing and tubing collar therefor
    Patent number: 5360062
    Abstract: A well tubing includes an insert nipple for receiving a hold-down projection of an insert pump. The tubing includes a tubing collar threadingly interconnecting the upper end of the insert nipple with the next upper tubing section. The tubing collar includes a tapered inner bore which becomes progressively larger in cross-section in the upward direction to provide, around the outside of the hold-down projection, a space of gradually enlarged volume for receiving debris as the insert pump is lifted from the well tubing, thereby preventing the pump from becoming stuck.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: November 1, 1994
    Assignee: H. Wade White
    Inventor: H. Wade White