Patents Assigned to Petersen Machine Works, Inc.
  • Marine anchor
    Patent number: 4261281
    Abstract: A stockless marine anchor having multiple-pointed twin flukes balanced symmetrically about and secured to a shaft having a shank means connected thereto for moving the flukes into anchoring position and means for releasing the flukes from the anchoring position. In one embodiment, two releasing rings are provided, one on each fluke, and the shank means is mounted for limited rotation on the fluke shaft. In a second embodiment, a spring-biased plunger enclosed within the shank releases the shank for rotation on the fluke shaft.
    Type: Grant
    Filed: March 29, 1979
    Date of Patent: April 14, 1981
    Assignee: Petersen Machine Works, Inc.
    Inventor: Larry C. Petersen