Patents by Inventor Dwight C. Nelson

Dwight C. Nelson 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: 4887407
    Abstract: An alignment clip for windows and associated method is disclosed. The alignment clip consists of a base, an alignment clip element having at least one tab, a spring operatively associated with the base and the alignment clip element and screws which engage screw holes in the alignment clip element. The alignment clip is disposed within a window frame which is designed to hold window sashes. The tabs or the screws or both tabs and screws provide a method of adjusting a window assembly in a window receiving opening.
    Type: Grant
    Filed: March 9, 1989
    Date of Patent: December 19, 1989
    Assignee: Season-all Industries, Inc.
    Inventor: Dwight C. Nelson
  • Patent number: 4870791
    Abstract: An alignment clip for windows and associated method is disclosed. The alignment clip consists of a base, an alignment clip element haivng at least one tab, a spring operatively associated with the base and the alignment clip element and screws which engage screw holes in the alignment clip element. The alignment clip is disposed within a window frame which is designed to hold window sashes. The tabs or the screws or both tabs and screws provide a method of adjusting a window assembly in a window receiving opening.
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: October 3, 1989
    Assignee: Season-all Industries, Inc.
    Inventor: Dwight C. Nelson