Steven Gerald Mattson

US Patent:

7128180, Oct 31, 2006

Filed:

Apr 13, 2005

Appl. No.:

11/104818

Inventors:

Stephen E. Polakowski - Houghton MI, US
Steven G. Mattson - Houghton MI, US

Assignee:

Great Lakes Sound & Vibration, Inc. - Houghton MI

International Classification:

B62M 27/00

US Classification:

180190, 180193

Abstract:

A rear suspension system for a snowmobile includes a plurality of adjacent closed-loop tracks disposed in a rear tunnel of the snowmobile. Each of the plurality of adjacent closed-loop tracks are rotatably driven by a drive system. One of a plurality of independent suspension assemblies is disposed in each closed-loop track and the plurality of independent suspension assemblies articulate independently of each other during travel of the rear suspension system.

US Patent:

7594557, Sep 29, 2009

Filed:

Apr 5, 2006

Appl. No.:

11/398333

Inventors:

Stephen E. Polakowski - Houghton MI, US
Steven G. Mattson - Houghton MI, US
Christian Muehlfeld - Chassell MI, US

Assignee:

Great Lakes Sound & Vibration, Inc. - Houghton MI

International Classification:

B62M 27/00
B62M 29/00

US Classification:

180190, 180193, 305127, 305128

Abstract:

A suspension assembly for a snowmobile is provided that rotatably supports a closed-loop track in the rear tunnel of the snowmobile and also supports both vertical and horizontal travel of said closed-loop track during suspension system travel. The suspension assembly includes at least one elongated ground contact that supports rotational travel of the closed loop track and at least one swing arm angularly disposed in the closed-loop track and having a front end portion pivotably coupled to the rear tunnel and a rear end portion coupled to the at least one ground contact. In the preferred arrangement, a front resilient member is arranged to bias against displacement between the chassis and the at least one ground contact during suspension assembly travel and a rear resilient member arranged to bias against displacement between the chassis and the swing arm during suspension assembly travel. A tensioner couples the rear end portion of the swing arm to the at least one ground contact. The tensioner is extendable and retractable during movement of the suspension assembly to maintain the closed loop track at a generally uniform tension during assembly movement.

US Patent:

8167073, May 1, 2012

Filed:

Aug 13, 2009

Appl. No.:

12/540997

Inventors:

Stephen E. Polakowski - Houghton MI, US
Steven G. Mattson - Houghton MI, US
Christian Muehlfeld - Chassell MI, US

Assignee:

Great Lakes Sound & Vibration, Inc. - Houghton MI

International Classification:

B62M 27/00
B62M 29/00

US Classification:

180190, 180193, 305127, 305128

Abstract:

A suspension assembly for a snowmobile is provided that rotatably supports a closed-loop track in the rear tunnel of the snowmobile and also supports both vertical and horizontal travel of said closed-loop track during suspension system travel. The suspension assembly includes at least one elongated ground contact that supports rotational travel of the closed loop track and at least one swing arm angularly disposed in the closed-loop track and having a front end portion pivotably coupled to the rear tunnel and a rear end portion coupled to the at least one ground contact. In the preferred arrangement, a front resilient member is arranged to bias against displacement between the chassis and the at least one ground contact during suspension assembly travel and a rear resilient member arranged to bias against displacement between the chassis and the swing arm during suspension assembly travel. A tensioner couples the rear end portion of the swing arm to the at least one ground contact. The tensioner is extendable and retractable during movement of the suspension assembly to maintain the closed loop track at a generally uniform tension during assembly movement.

US Patent:

20110101579, May 5, 2011

Filed:

Oct 14, 2010

Appl. No.:

12/904696

Inventors:

Stephen E. Polakowski - Atlantic Mine MI, US
Christian Michael Muehlfeld - Chassell MI, US
Steven Mattson - Houghton MI, US
David Labyak - Hancock MI, US

Assignee:

Great Lakes Sound & Vibration, Inc. - Houghton MI

International Classification:

F16F 9/06
F16F 9/22
F16F 9/32
B60G 15/12

US Classification:

267 6426, 188313

Abstract:

A multi-stage shock absorber with closed ends has a plurality of tubular shock bodies telescopically interconnected together, and includes a piston arrangement slidably mounted within certain of the shock bodies to define a number of chambers variously containing damping and/or spring elements for enabling damping of shock forces applied to the shock absorber.

US Patent:

20150145188, May 28, 2015

Filed:

Jan 15, 2015

Appl. No.:

14/597440

Inventors:

- Houghton MI, US
Christian Michael Muehlfeld - Chassell MI, US
Steven G. Mattson - Houghton MI, US
David Labyak - Hancock MI, US

Assignee:

GREAT LAKES SOUND & VIBRATION, INC. - Houghton MI

International Classification:

B60G 15/12
F16F 9/32
F16F 9/34
F16F 9/16

US Classification:

267 6426, 188313

Abstract:

A multi-stage shock absorber with closed ends has a plurality of tubular shock bodies telescopically interconnected together, and includes a piston arrangement slidably mounted within certain of the shock bodies to define a number of chambers variously containing damping and/or spring elements for enabling damping of shock forces applied to the shock absorber.