Patents by Inventor Arthur B. M. Braithwaite

Arthur B. M. Braithwaite 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).

  • Method for making a boom
    Patent number: 4159796
    Abstract: A boom is made by joining two tubular members to a cast iron elbow section. The tubular members are made from plate formed into tubes with a longitudinally welded seam. The tube seams are located below a horizontal axis of the respective tube members and circumferentially between the horizontal and vertical axes thereof to dispose the weld seam on a lower side of the boom. Pivotal boom connection means are further welded to each free end of the boom and to the elbow section.
    Type: Grant
    Filed: June 23, 1977
    Date of Patent: July 3, 1979
    Assignee: Caterpillar Tractor Co.
    Inventor: Arthur B. M. Braithwaite