The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 18, 2019
Filed:
Aug. 31, 2016
Andrew Krauss, Concord, MA (US);
Steve Brandis, Virginia Beach, VA (US);
Damien Bretall, Baltimore, MD (US);
Ryan Faber, Virgina Beach, VA (US);
Alma Jacobson, Virginia Beach, VA (US);
Chelsea Shores, Virginia Beach, VA (US);
Andrew Krauss, Concord, MA (US);
Steve Brandis, Virginia Beach, VA (US);
Damien Bretall, Baltimore, MD (US);
Ryan Faber, Virgina Beach, VA (US);
Alma Jacobson, Virginia Beach, VA (US);
Chelsea Shores, Virginia Beach, VA (US);
The United States of America, as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
The disclosed invention is a device for non-lethally stopping or slowing any water jet propelled craft, such as a common personal watercraft (PWC), by disrupting the water suction and thereby reducing the generated thrust. Most PWCs have an inboard engine that is coupled to a water jet pump which uses an impeller to generate thrust. This invention is ingested by the PWC intake to either clog the intake gate (or screen) or fill critical volume in any portion of the jet pump (such as the intake, impeller, stator, or pressure nozzle). In any case, water flow through the jet drive is significantly reduced which reduces the vessel's thrust. PWCs depend on adequate water flow through the jet pump to generate the thrust required for propulsion and steerage, and to provide engine cooling. Since this invention is designed to interrupt water flow, the result is reduced speed, steerage, and/or engine overheating.