Wallace R Karrasch

US Patent:

50883445, Feb 18, 1992

Filed:

Dec 6, 1990

Appl. No.:

7/623272

Inventors:

Philip A. Anderson - Waukegan IL
William A. Bernau - Lindenhurst IL
Paul W. Breckenfeld - Kenosha WI
Geroge L. Broughton - Zion IL
Wallace R. Karrasch - Milwaukee WI

Assignee:

Outboard Marine Corporation - Waukegan IL

International Classification:

G05G 100

US Classification:

74572

Abstract:

An internal combustion engine comprising an engine block, a crankshaft rotatably supported by the block and including an axis, a first portion which is cylindrical in shape, which is concentric with the axis, and which has a uniform radius, and a second portion extending from the first portion in concentric relation thereto and having a radius less than the radius of the first portion to define a radially extending shoulder on the first portion, a flywheel including a surface engaging the shoulder, and a central aperture receiving the second portion of the crankshaft and having a radius less then the radius of the first portion, and bolts extending through the flywheel and into the first portion of the crankshaft for securing the flywheel to the crankshaft.

US Patent:

47923156, Dec 20, 1988

Filed:

Dec 29, 1986

Appl. No.:

6/947106

Inventors:

Wallace R. Karrasch - Milwaukee WI
Kennedy K. McElroy - Lindenhurst IL
Steven R. McNeill - Waukegan IL

International Classification:

B63H 2334

US Classification:

440 83

Abstract:

Disclosed herein is a marine propulsion device adapted to be mounted to the transom of the boat, the marine propulsion device comprising an engine, a rotatably mounted propeller, and a drive shaft assembly drivingly connecting the engine to the propeller, the drive shaft assembly including a lower drive shaft member having a lower end coupled to the propeller and having a threaded upper end, the drive shaft assembly further including an upper drive shaft member having a threaded lower end for threadedly engaging the threaded upper end of the lower drive shaft member.