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:
Jan. 14, 1986
Filed:
Jun. 03, 1983
Applicant:
Inventor:
John G Walker, Hamble, Hampshire, GB;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63H / ;
U.S. Cl.
CPC ...
114103 ; 114102 ; 244215 ; 244216 ;
Abstract
A sailset comprising a leading aerofoil and a trailing aerofoil that pivots about an axis passing through the leading aerofoil. A third comparatively small aerofoil is retractable within the leading aerofoil and extendable downwind of the trailing edge of the leading aerofoil to provide a surface overlapping the leading edge of the trailing aerofoil. Guides for the third aerofoil are preferably provided for both its leading and trailing edges, the guides comprising roller and roller tracks and/or sliding pivots.