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.

Date of Patent:
Nov. 13, 1984

Filed:

Mar. 26, 1984
Applicant:
Inventors:

Kenichiro Ishitani, Tokyo, JP;

Eiichi Kawamura, Saitama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ; F16J / ;
U.S. Cl.
CPC ...
277-3 ; 277 27 ; 277 59 ; 277 / ; 277192 ;
Abstract

A stern tube seal device wherein an annular case member is arranged in the outer periphery of a shaft, a mechanical seal is arranged in a gap therebetween and at a position at the side of the ship, a limited leaking type seal is arranged at a position at the side of sea water, and pressure fluid is fed in the intermediate between both the seal members to enhance a sealing effect by pressure of the pressure fluid.


Find Patent Forward Citations

Ishitani, Kenichiro. (1984). Stern tube seal device (U.S. Patent No. 4482159). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4482159

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

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