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:
May. 02, 1995
Filed:
Apr. 08, 1994
William B Webb, Lake City, MN (US);
Other;
Abstract
A rudderless sailboat having a mast keel assembly which can be pivoted fore or aft to generate a moment of force to effect easy precise sailboat steering. In one embodiment including a catamaran, the keel is integral to the mast and thus pivots correspondingly but in an opposite direction from vertical as the mast is pivoted fore or aft. In yet another embodiment, a monohull is provided wherein a frame extends laterally over each side rail of the hull and downwardly to a respective keel, wherein the mast extends upwardly therefrom. The frame is secured in an oar lock on each side rail. Thus, as the sail and mast is pivoted forwardly, each keel disposed lateral of the side rails is pivoted rearwardly. In still yet another embodiment, a slope-rigged sailboat is disclosed wherein the mast can be pivoted fore or aft by adjusting the length of the forestay and backstay. The keel is stationary, and a winch is used to adjust and secure the position of the mast.