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:
Apr. 05, 2005
Filed:
Sep. 27, 2001
Jens Tornblad, Kristinehamn, SE;
Christer Häger, Kristinehamn, SE;
Gunnar Styrud, Kristinehamn, SE;
Rolls-Royce Aktiebolag, Kristinehamn, SE;
Abstract
The present invention relates to a jet propulsion unit () for propulsion of a waterborne craft comprising at least one impeller pump () with a pump housing () in which an impeller shaft () or ajournal () connected to said impeller shaft () is is rotatably journalled in bearings, and an impeller () blades (), the impeller () being fixed to said impeller shaft () or journal () so as to follow the rotation of the impeller shaft (), the impeller blades () being arranged at the impeller ( ) with a play of the blades () between each impeller blade () and the inside () of the pump housing (). According to the invention the jet propulsion unit () also comprises an axially adjustable thrust bearing () arranged to cooperate with the impeller shaft () for adjusting said play ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile