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:
Feb. 26, 1991
Filed:
Feb. 07, 1990
Ricky H Lulloff, Neenah, WI (US);
Brunswick Corporation, Skokie, IL (US);
Abstract
A stern drive marine propulsion system (2) has an inboard engine (4) with an exhaust (6), an outboard drive unit (8) and propeller (14) operatively coupled to the engine and separated therefrom by a transom (10) having two exhaust passages (28 and 34) therethrough, and an exhaust control assembly (16) having an inlet (18) connected to the engine exhaust, first and second outlets (22 and 24) communicating with respective exhaust passages extending aft through the transom, and a valve (26) in the assembly having a first condition (26a) providing communication of the inlet with the first outlet, and a second condition (26b) blocking communication of the inlet with the first outlet. Automatic control circuitry automatically controls actuation of the valve between the first and second conditions in response to a given parameter.