Mark D Hoffmann

Address:

4630 N Redwood Dr, Janesville, WI 53548

Phone:

6085776727

VIN:

2GKFLVE57C6226023

Make:

GMC

Model:

TERRAIN

Year:

2012

US Patent:

6345613, Feb 12, 2002

Filed:

Mar 27, 2000

Appl. No.:

09/536030

Inventors:

Mark A. Hoffmann - New Berlin WI
Paul J. Troxler - Brookfield WI

Assignee:

Harley-Davidson Motor Company Group, Inc. - Milwaukee WI

International Classification:

F02M 2506

US Classification:

123572, 1231935, 123573, 123 4186

Abstract:

A cylinder head for a motorcycle engine includes a lower surface adapted to be coupled to a cylinder, an upper surface adapted to be coupled to a rocker box and defining a plane, and a side connected between the upper surface and the lower surface. The head also includes a breather inlet extending into the upper surface, an intermediate passage extending into the upper surface, and a breather channel connecting the inlet and the intermediate passage, the breather channel lying in a plane that is generally parallel to the plane of the upper surface. The head also includes a breather passage extending into the side of the head and connected to the intermediate passage, the breather passage having a longitudinal axis that is generally parallel to the plane of the upper surface.

US Patent:

62638475, Jul 24, 2001

Filed:

Nov 23, 1999

Appl. No.:

9/448025

Inventors:

Mark A. Hoffmann - New Berlin WI
Paul J. Troxler - Brookfield WI

Assignee:

Harley-Davidson Motor Company Group, Inc. - Milwaukee WI

International Classification:

F01L 118

US Classification:

123 9039

Abstract:

A rocker support assembly for a motorcycle internal combustion engine. The assembly comprises a pair of rockers positioned in spaced relation from each other, a breather housing, and a pressure-responsive member. The housing at least partially defines an inlet aperture, an outlet aperture, and a passage in fluid communication between the inlet aperture and the outlet aperture. The passage is positioned substantially between the rockers. The pressure-responsive member is disposed in the passage and is operable in response to pressure differences in the passage to permit or inhibit fluid flow through the passage from the inlet to the outlet. A filter element is disposed within the housing such that substantially all fluid flowing from the inlet aperture to the outlet aperture passes through the filter element.

US Patent:

60654570, May 23, 2000

Filed:

Jul 24, 1998

Appl. No.:

9/122322

Inventors:

Mark A. Hoffmann - New Berlin WI
Paul J. Troxler - Brookfield WI

Assignee:

Harley-Davidson Motor Company - Milwaukee WI

International Classification:

F02M 2506

US Classification:

123572

Abstract:

A rocker support assembly for a motorcycle internal combustion engine. The assembly comprises a pair of rockers positioned in spaced relation from each other, a breather housing, and a pressure-responsive member. The housing at least partially defines an inlet aperture, an outlet aperture, and a passage in fluid communication between the inlet aperture and the outlet aperture. The passage is positioned substantially between the rockers. The pressure-responsive member is disposed in the passage and is operable in response to pressure differences in the passage to permit or inhibit fluid flow through the passage from the inlet to the outlet. A filter element is disposed within the housing such that substantially all fluid flowing from the inlet aperture to the outlet aperture passes through the filter element.