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. 21, 1989
Filed:
Feb. 01, 1988
Applicant:
Inventors:
Douglas A Geller, Arcadia, CA (US);
Stephen E Schneider, Claremont, CA (US);
William C Holbrook, San Gabriel, CA (US);
Assignee:
Kransco Manufacturing, Inc., San Francisco, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63B / ;
U.S. Cl.
CPC ...
114132 ; 114 392 ; 114127 ; 441 74 ; 74475 ; 74525 ;
Abstract
A generally trapezoidal fin (22) is pivotally fastened to a casing which can receive the entire fin, permitting total retraction of the fin. The casing is formed with at least one notch (42) for selectively positioning the fin relative to the casing. In a preferred embodiment, the fin is operated by a lever member (26) which has a knob (50) at its distal end for use in positioning the fin (22) from above.