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:
May. 03, 2005

Filed:

Feb. 05, 2004
Applicants:

A. Michael Varney, Winter Park, FL (US);

John D. Martino, Longwood, FL (US);

Kimball P. Hall, Wading River, NY (US);

Inventors:

A. Michael Varney, Winter Park, FL (US);

John D. Martino, Longwood, FL (US);

Kimball P. Hall, Wading River, NY (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H021/32 ;
U.S. Cl.
CPC ...
Abstract

A marine outboard motor includes a power unit and a pump jet. The power unit includes a drive output and an exhaust outlet, and the pump jet includes a rotor hub and a rotor carried thereby. The rotor hub is connected to the drive output of the power unit for selective rotation for forward or reverse motion, and the rotor hub has an internal passageway connected in fluid communication with the exhaust outlet. The pump jet further includes an exhaust bypass movable between normal and bypassed positions. The exhaust bypass when in the normal position directing exhaust through the internal passageway of the rotor hub to discharge downstream of the rotor during forward motion. The exhaust bypass when in the bypassed position bypassing exhaust from the internal passageway to discharge downstream of the rotor during reverse motion.


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