Denis A Oswald

US Patent:

20130291508, Nov 7, 2013

Filed:

Mar 15, 2013

Appl. No.:

13/840070

Inventors:

Briggs and Stratton Corporation - , US
James F. Marshall - Munnsville NY, US
Richard Smith - Morrisville NY, US
Mark Lynch - Munnsville NY, US
Travis Rasch - Hustisford WI, US
Erik Slegelis - Port Washington WI, US
Steven J. Weber - Germantown WI, US
Denis Oswald - Hartford WI, US

International Classification:

A01D 75/00
B60K 17/00
A01D 69/00
B60G 9/00
B60K 1/00

US Classification:

56 147, 280124116, 180357, 180 651

Abstract:

Some embodiments of the invention provide an independent suspension system coupled to a main-frame of ride-on equipment including a subframe coupled to the main frame with a pivot including a pivot axis. Some embodiments include a transaxle assembly supported on the subframe coupled to a drive wheel, and a power source supported on the main frame coupled to the transaxle assembly. A rider can control the transaxle assembly with a compensated control linkage assembly that can compensate for movement of the subframe. Some embodiments include driven pulleys, idler pulleys and backside idler pulleys supported by the subframe coupled to the power source not supported by the subframe. In some embodiments, the pivot axis resides between the power source and the transaxle assembly. In some embodiments, the drive wheel can be driven by an electric motor supported by the subframe and the power source can be a battery.

US Patent:

20130291509, Nov 7, 2013

Filed:

May 7, 2013

Appl. No.:

13/889024

Inventors:

Denis Oswald - Hartford WI, US
Travis Rasch - Hustisford WI, US
Erik Slegelis - Port Washington WI, US

Assignee:

Briggs and Stratton Corporation - Wauwatosa WI

International Classification:

A01D 34/64

US Classification:

56 158

Abstract:

Front and rear independent suspension mechanisms accommodating an increased range of motion to better absorb shock originating at the wheels of a riding mower to insulate the operator and reduce stress on the mower chassis and other mechanical components. The front suspension can include a front axle with pivot pockets allowing 360 degree rotation of pivots engaged within the pockets, thereby providing a greater range of absorption of shock entering the front axle at varying angles. The rear suspension can include a vertically pivoting transmission platform, providing for controlled vertical motion in the transmission while the transmission is powered by an engine by way of a belt assembly.

US Patent:

56427018, Jul 1, 1997

Filed:

Jan 22, 1996

Appl. No.:

8/589798

Inventors:

Denis A. Oswald - Hartford WI
Mark W. Emmer - Pewaukee WI
Daniel W. Edmonds - Milwaukee WI
Robert S. Johnson - Milwaukee WI

Assignee:

Briggs & Stratton Corporation - Wauwatosa WI

International Classification:

F01M 910

US Classification:

1231935

Abstract:

The cylinder head assembly includes a cast member, and a substantially planar member that is affixed to an upper end of the cast member. The substantially planar member includes apertures to anchor the intake and exhaust rocker studs, apertures that receive the intake and exhaust valve, and apertures that receive the push rod guides. The substantially planar member also has spring locators for the intake and exhaust valve return springs. The cast member is affixed to the engine cylinder, and includes cast intake and exhaust manifolds, bosses for receiving the intake and exhaust valves, a cast pocket for receiving the intake and exhaust push rods, and air cooling fins. A head cover is disposed on an opposite side of the planar member. The invention eliminates the need for two cast components.

US Patent:

20220194220, Jun 23, 2022

Filed:

Mar 11, 2022

Appl. No.:

17/692769

Inventors:

- Wauwatosa WI, US
Denis OSWALD - Hartford WI, US
Travis RASCH - Hutisford WI, US
Erik SLEGELIS - Port Washington WI, US
Mark J. MELONE - Rome NY, US
James F. MARSHALL - Munnsville NY, US
Richard SMITH - Morrisville NY, US
Mark LYNCH - Mummsville NY, US

Assignee:

Briggs & Stratton, LLC - Wauwatosa WI

International Classification:

B60K 17/10
A01D 34/64
A01D 67/00
B60G 9/00
B60K 17/00
A01D 69/00

Abstract:

An embodiment relates to a mower having a chassis and a rear suspension assembly. The chassis supports a cutter deck. The rear suspension assembly includes a support, a drive axle, and a shock absorber. The support includes a pivot, and the pivot includes a bushing to allow pivotable motion relative to the chassis. The drive axle is supported by the support and is configured to transfer power to drive at least one wheel. The shock absorber is coupled to the support and the chassis. The at least one wheel and the drive axle are configured to vertically oscillate relative to the chassis.

US Patent:

20210122237, Apr 29, 2021

Filed:

Dec 31, 2020

Appl. No.:

17/139424

Inventors:

- Wauwatosa WI, US
James F. Marshall - Munnsville NY, US
Richard Smith - Morrisville NY, US
Mark Lynch - Munnsville NY, US
Travis Rasch - Hustisford WI, US
Erik Slegelis - Port Washington WI, US
Steven J. Weber - Germantown WI, US
Denis Oswald - Hartford WI, US

Assignee:

Briggs & Stratton, LLC - Wauwatosa WI

International Classification:

B60K 17/10
B60G 9/00
A01D 34/64

Abstract:

Ride-on equipment includes a pair of front wheels, a pair of rear wheels, a main frame, a subframe pivotally coupled to the main frame about a pivot axis, a power source, and a transaxle assembly. The power source is coupled to and supported by the main frame and includes a drive pulley. The transaxle assembly is configured to pivot with respect to the power source, is operably coupled to the pair of rear drive wheels, and includes at least one driven pulley. The drive pulley and the at least one driven pulley are operably coupled by a belt such that the at least one driven pulley of the transaxle assembly is configured to be driven by the drive pulley of the source via the belt.

US Patent:

20200156467, May 21, 2020

Filed:

Sep 23, 2019

Appl. No.:

16/579403

Inventors:

- Wauwatosa WI, US
Denis OSWALD - Hartford WI, US
Travis RASCH - Hutisford WI, US
Erik SLEGELIS - Port Washington WI, US
Mark J. MELONE - Rome NY, US
James F. MARSHALL - Munnsville NY, US
Richard Smith - Morrisville NY, US
Mark LYNCH - Mummsville NY, US

Assignee:

Briggs & Stratton Corporation - Wauwatosa WI

International Classification:

B60K 17/10
A01D 69/00
A01D 67/00
B60K 17/00
B60G 9/00
A01D 34/64

Abstract:

Front and rear independent suspension mechanisms accommodating an increased range of motion to better absorb shock originating at the wheels of a riding mower to insulate the operator and reduce stress on the mower chassis and other mechanical components. The front suspension can include a front axle with pivot pockets allowing 360 degree rotation of pivots engaged within the pockets, thereby providing a greater range of absorption of shock entering the front axle at varying angles. The rear suspension can include a vertically pivoting transmission platform, providing for controlled vertical motion in the transmission while the transmission is powered by an engine by way of a belt assembly.

US Patent:

20190016214, Jan 17, 2019

Filed:

Sep 17, 2018

Appl. No.:

16/132577

Inventors:

- Wauwatosa WI, US
James F. Marshall - Munnsville NY, US
Richard Smith - Morrisville NY, US
E. Mark Lynch - Munnsville NY, US
Travis Rasch - Hustisford WI, US
Erik Slegelis - Port Washington WI, US
Steven J. Weber - Germantown WI, US
Denis Oswald - Hartford WI, US

International Classification:

B60K 17/10
A01D 75/18
B60G 9/00
A01D 34/82

Abstract:

Some embodiments of the invention provide a transaxle drive system for ride-on equipment. The transaxle drive system can include a frame supporting at least one power source and at least two subframes, the at least one power source including at least one drive pulley. The system can also include transaxle assemblies driven by at least a portion of at least one belt from the at least one drive pulley. The transaxle assemblies can include a first transaxle assembly supported by a subframe, the first transaxle assembly coupled to the at least one drive pulley with at least one belt, and a second transaxle assembly supported by another subframe, the second transaxle assembly coupled by at least one belt to the at least one drive pulley. The transaxle assemblies can be independently pivoted with respect to each other, the frame, and the power source.

US Patent:

20170313183, Nov 2, 2017

Filed:

Jul 18, 2017

Appl. No.:

15/652905

Inventors:

- MILWAUKEE WI, US
JAMES F. MARSHALL - MUNNSVILLE NY, US
RICHARD SMITH - MORRISVILLE NY, US
MARK LYNCH - MUNNSVILLE NY, US
TRAVIS RASCH - HUSTISFORD WI, US
ERIK SLEGELIS - PORT WASHINGTON WI, US
STEVEN J. WEBER - GERMANTOWN WI, US
DENIS OSWALD - HARTFORD WI, US

Assignee:

BRIGGS & STRATTON CORPORATION - MILWAUKEE WI

International Classification:

B60K 17/10
A01D 75/18
A01D 34/82
B60G 9/00

Abstract:

Some embodiments of the invention provide a transaxle drive system for ride-on equipment. The transaxle drive system can include a frame supporting at least one power source and at least two subframes, the at least one power source including at least one drive pulley. The system can also include transaxle assemblies driven by at least a portion of at least one belt from the at least one drive pulley. The transaxle assemblies can include a first transaxle assembly supported by a subframe, the first transaxle assembly coupled to the at least one drive pulley with at least one belt, and a second transaxle assembly supported by another subframe, the second transaxle assembly coupled by at least one belt to the at least one drive pulley. The transaxle assemblies can be independently pivoted with respect to each other, the frame, and the power source.