Invention Grant
- Patent Title: Quadfoiler
- Patent Title (中): 四边形
-
Application No.: US13524655Application Date: 2012-06-15
-
Publication No.: US08720354B2Publication Date: 2014-05-13
- Inventor: Gregory Scott Ketterman , James Taylor Czarnowksi , Jason Christopher Kardas , Philip James Dow
- Applicant: Gregory Scott Ketterman , James Taylor Czarnowksi , Jason Christopher Kardas , Philip James Dow
- Applicant Address: US CA Oceanside
- Assignee: Hobie Cat Co.
- Current Assignee: Hobie Cat Co.
- Current Assignee Address: US CA Oceanside
- Agent Joseph E. Mueth, Esq.
- Main IPC: B63B35/00
- IPC: B63B35/00

Abstract:
A watercraft having a hull, a mast with sail, an aft rudder and a hydrofoil projecting below the bottom of the hull. The hydrofoil is pivotly connected to the hull enabling the hydrofoil to pitch on a pivot axis which is essentially perpendicular to the longitudinal axis of the hull. The hydrofoils have a vertical part which produces lateral forces to accelerate the boat in turns and resist lateral forces from the sail, and a vertical portion which curves into the horizontal portion which produces vertical lift. The angle of incidence of the hydrofoil is controlled by a sensor arm carrying a trailing sensor.
Public/Granted literature
- US20120325135A1 QuadFoiler Public/Granted day:2012-12-27
Information query