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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.:

US 4795273 B1

PDFFull Text
Date of Patent:
Jan. 03, 1989

Filed:

Nov. 19, 1987

Propeller shaft bearing arrangement

Applicant:
Inventors:

Torbjorn Henriksson, Helsinki, FI;

Kari Laukia, Espoo, FI;

Heikki Sipila, Turku, FI;

Markus Hjerppe, Vaasa, FI;

Assignee:

Oy Wartsila Ab, Helsinki, FI;

Attorney:

Dellett, Smith-Hill & Bedell

Primary Examiner:

Stuart S Levy

Assistant Examiner:

Thomas R Hannon

Int. Cl.
CPC ...
F10C / ; F16C / ; F01M / ; B63H / ;
U.S. Cl.
CPC ...
384 97 ; 184-621 ; 184-623 ; 184109 ; 277-1 ; 277D / ; 384322 ; 384397 ; 384904 ; 416174 ; 4162 / ;
Abstract

The invention relates to a method for preventing leaks in a propeller shaft bearing arrangement including a plain bearing (2), which is lubricated with oil or water and which supports the propeller shaft (1) extending through an opening in the body (4) of a hull, and packing members (6,7) for keeping the lubricant in the lubrication space and for preventing water from entering the bearing arrangement. According to the invention, the pressure vibrations occuring in the lubricant are equalized arranging, in the lubrication space, a medium possessing a high compressibility, which medium by means of changes in volume receives and equalizes said pressure vibrations.

Find Patent Forward Citations

Henriksson, Torbjorn. (1989). Propeller shaft bearing arrangement (U.S. Patent No. 4795273). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4795273

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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