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. 13, 1990
Filed:
Aug. 16, 1988
Applicant:
Inventor:
Ole H Midttun, Walpole, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63H / ;
U.S. Cl.
CPC ...
440 50 ; 416 61 ;
Abstract
The pitch setting of a machine controllable pitch propeller is indicated with a high accuracy by comparing the positions of the portions within the vessel hull of a translating member fastened to the pitch change mechanism within the propeller hub and a non-translating member fastened adjacent one end to the hub and extending essentially free of axial load through the propeller shaft into the vessel hull.