Patents by Inventor Charles D. Osterholm

Charles D. Osterholm 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: 10159237
    Abstract: A line dampener is configured to reduce vibration in a fishing line. The line dampener includes a housing that has a top portion that smoothly descends to a front portion, a rear portion, a port portion and a starboard portion. A bottom portion smoothly ascends to a front portion, a rear portion, a port portion and a starboard portion. A tunnel perforates the housing. A fishing line passes through the tunnel. The housing reduces the vibration in the fishing line.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: December 25, 2018
    Inventor: Charles D. Osterholm
  • Patent number: 10021865
    Abstract: A trolling weight is designed to sink while minimizing drag. The trolling weight has a forward bulb arranged as a paraboloid configured to reduce the drag while the trolling weight is moving. The forward bulb truncates to a rearward portion. A first stabilizing fin is attached to the forward bulb and further comprising a first smooth parabolic planar portion which convex from a first apex that connects the forward bulb and the rearward portion. An internal spine is attached to the first stabilizing fin, and further comprising a plurality of upper attachment holes configured to connect cables to pull the trolling weight forward. A tail fin is attached to the internal spine by a plurality of connectors embedded within the forward bulb and arranged rearward of the rearward portion of the forward bulb and further comprising a plurality of rear attachment holes for attaching accessories.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: July 17, 2018
    Inventors: Charles D. Osterholm, Charles Lonnie Osterholm
  • Patent number: 5076547
    Abstract: A collapsible handrail apparatus is disclosed for being mounted on a wall structure adjacent a doorway. The handrail apparatus comprises mounting fixtures by which a handrail structure can be pivotally connected to the wall structure. A bracing bar is connected between the wall structure and a post member of the handrail structure. The handrail structure has a first collapsed position adjacent to the wall structure and a second extended position in which a handrail portion extends from the wall structure so as to be positioned for handrail support.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: December 31, 1991
    Inventor: Charles D. Osterholm