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. 19, 1985
Filed:
Aug. 31, 1981
John W Williams, Bellevue, WA (US);
The Boeing Company, Seattle, WA (US);
Abstract
A hydrofoil craft strut (365) steerable when the craft (5) is foil-borne and retractable when the strut (365) is not in use. In a preferred embodiment, the strut (365) is provided with a spherical bearing (185) disposed at the intersection of a steering axis (S--S) and a retraction axis (R--R). The bearing (185) allows a steering assembly (200) to steer the strut (365) about the steering axis (S--S). A downlock assembly (390) constrains the strut (365) in a vertical portion during the strut steering mode and releases the strut (365) during the retraction mode. During the retraction mode, a retraction assembly (385) rotates the strut (365) about the retraction axis (R--R) from its vertical position to a position within a recess (40) within the craft (5) in which it is fixed by an uplock assembly (715).