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Archive for patent

Kickup bracket with jack plate patent application

David Vance Jr. filed a patent application for a jack plate integrated with a kickup bracket. The kickup portion of the assembly is chained prevent over rotation of the outboard when a submerged object is struck. The patent application was published 22 November 2018. Mr. Vance, the inventor, says this design is for faster vessels […]

Brunswick Patent Application prevents groundings

Brunswick Patent Application US 2018/0335788 A1 for “Systems and Methods for Raising and Lowering a Marine Device on a Marine Vessel” was published 22 November 2018. The patent application provides some automatic modes for monitoring drive trim, jack plate height, water depth, GPS location, heading, navigational map water depth, speed, throttle position, and other variables […]

Brunswick follows our lead, patents active trim cylinder US Patent 9,290,252

In December 2013 we published a report, Approaches to Prevent Outboard Motors From Flipping Into Boats After Striking Floating or Submerged Objects in which we identified several ways to prevent outboard motors from breaking off and flipping into boats after striking submerged objects. One of those was was active trim control (see pages 33-34 of […]

Licensing Propeller Safety Technologies That Are Part of Industry Standards / Regulations: Similar Case Heads to Court

A case currently before U.S. District Court in Seattle may have bearing on the licensing of propeller guards and other propeller safety technologies. In the past, some have said that swim ladder switches such at Keith Jackson / MariTech’s Prop Stopper could not be included in any USCG propeller safety regulation because they are a […]

3PO Navigator Propeller Guard Invented by Guy Taylor Receives U.S. Patent

Guy Taylor received U.S. Patent 8,257,121 for a “Boat Propeller Shield” on September 4, 2012. His 3PO Propeller Shield automatically swings up from his hexagonal shaped Navigator guard when underway to reduce drag. The shield automatically falls down to protect people behind the boat when the boat is at rest or backing up.

Volvo Penta Patents Virtual Propeller Guard System

On June 5, 2012, Volvo Penta was issued U.S. Patent 8,195,381 for a Safety System for Marine Vessels. The patent focuses on detecting people in the water in conjunction with digital anchors. UPDATE note – on September 18, 2012 Volvo Penta was issued another patent, U.S. Patent 8,271,155 for technologies surrounding this same concept. GPS […]