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. 07, 2012
Filed:
Aug. 20, 2008
Applicants:
Lawrence J Graf, Snohomish, WA (US);
David J. Pugh, Snohomish, WA (US);
Inventors:
Lawrence J Graf, Snohomish, WA (US);
David J. Pugh, Snohomish, WA (US);
Assignee:
Aspen Power Catamarans LLC, Snohomish, WA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B63B 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The catamaran hull includes a pair of substantially parallel separate hulls, connected by an intermediate hull portion, wherein only one of the separate hulls includes a propulsion assembly. Each hull is asymmetric, but differently configured, such that the off-center thrust created by the propulsion assembly in the one hull is substantially offset by the turning force created by the difference in the two asymmetric hull shapes.