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:
Feb. 10, 1987
Filed:
Aug. 30, 1985
Charles E Thomas, El Cajon, CA (US);
Richard Harvey, Spring Valley, CA (US);
Other;
Abstract
A highly maneuverable water craft for recreational enthusiasts with two hydraulically controlled and driven reversible propellers directionally fixed to a toroidal peripheral hull section which encircles a thinner interior platform section. The toroidal exterior hull provides stability for the platform in water, allowing the water craft to quickly spin, translate, stop and start. The directionally fixed propellers are not impacted by translation or spin and provide rugged and simplified construction. Placement of two fixed reversible propellers on the peripheral hull section provides maximum turning torque and allows elimination of a rudder or directional actuators. Control is provided by a novel pilot actuator and four-way valves assembly. Bumper strips, propeller guards, handholds and deadman switches can be provided for safety in handling this extremely maneuverable water craft.