Patents by Inventor Mike Zacker

Mike Zacker 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).

  • Shaft release spear gun
    Patent number: 4971019
    Abstract: A spear gun assembly for propelling a sharpened spear in an underwater hunting environment. The assembly includes a holding bar rigidly attached to the gun which engages a hole in the spear. A trigger assembly is actuatable to pivot a lifter for lifting the spear from the holding bar, thereby releasing the spear from the gun. The trigger assembly is provided with a safety mechanism for preventing the lifter from pivoting and a lanyard which is disengaged as the trigger is actuated.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: November 20, 1990
    Inventor: Mike Zacker