Patents Examined by E. Kazenske
  • Chain saw guide bar and method of construction
    Patent number: 4641432
    Abstract: This disclosure relates to a guide bar for a saw chain which includes a pair of side plates and a center plate laser welded to and between the side plates. The center plate has a peripheral edge which is spaced inwardly from the outer periphery of the side plates so as to form a peripheral guide channel or groove for the chain. The disclosure further relates to a method of making a three-plate guide bar wherein the plates are laser welded together.
    Type: Grant
    Filed: March 26, 1985
    Date of Patent: February 10, 1987
    Assignee: Suehiro Seiko Kabushiki Kaisha
    Inventor: Takeshi Kume