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:
Aug. 15, 1995
Filed:
Dec. 28, 1993
Applicant:
Inventor:
Gunter Berger, Castrop, DE;
Assignee:
Mannesmann Aktiengesellschaft, Dusseldorf, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63H / ;
U.S. Cl.
CPC ...
416125 ; 416129 ; 4161 / ; 4161 / ;
Abstract
A ship's drive with two counterturning propellers, the rear propeller of which is fastened to an inner shaft and the front propeller of which is fastened to the head end of a hollow shaft, which runs concentrically with the inner shaft. The hollow shaft is connected to a gearing and the inner shaft is connected to a propulsion unit. A gearwheel is disposed at the foot end of the hollow shaft which engages a further gearwheel which is fastened to an input shaft running parallel to the inner shaft. The input shaft can be connected with the output of a second engine.