US 12,063,884 B1
Suspension system for lawnmower
Charles Bradley Covington, Batesville, AR (US); and Warren Russell Long, Batesville, AR (US)
Assigned to BAD BOY MOWERS, LLC, Batesville, AR (US)
Filed by Bad Boy Mowers, LLC, Batesville, AR (US)
Filed on May 16, 2022, as Appl. No. 17/744,919.
Application 17/744,919 is a continuation of application No. 16/824,946, filed on Mar. 20, 2020, granted, now 11,343,964.
Application 16/824,946 is a continuation of application No. 16/299,670, filed on Mar. 12, 2019, granted, now 10,709,065, issued on Jul. 14, 2020.
Application 16/299,670 is a continuation of application No. 16/193,316, filed on Nov. 16, 2018, granted, now 10,356,978, issued on Jul. 23, 2019.
Application 16/193,316 is a continuation of application No. 15/673,744, filed on Aug. 10, 2017, granted, now 10,188,033, issued on Jan. 29, 2019.
Application 15/673,744 is a continuation in part of application No. 14/735,640, filed on Jun. 10, 2015, granted, now 9,730,386, issued on Aug. 15, 2017.
Claims priority of provisional application 62/010,634, filed on Jun. 11, 2014.
This patent is subject to a terminal disclaimer.
Int. Cl. A01D 34/00 (2006.01); A01D 34/64 (2006.01); A01D 34/82 (2006.01); B60G 3/08 (2006.01); B62D 11/06 (2006.01); A01D 101/00 (2006.01)
CPC A01D 34/82 (2013.01) [A01D 34/00 (2013.01); A01D 34/64 (2013.01); B60G 3/08 (2013.01); B62D 11/06 (2013.01); A01D 2101/00 (2013.01); B60G 2200/142 (2013.01); B60G 2202/143 (2013.01); B60G 2202/21 (2013.01); B60G 2204/18 (2013.01); B60G 2300/084 (2013.01)] 35 Claims
OG exemplary drawing
 
1. A zero-turn radius (ZTR) riding lawnmower system comprising:
a frame;
a right rear drive system comprising:
a right integrated hydraulic transaxle comprising a right hydraulic pump, a right hydraulic motor and a right drive axle, the right drive axle configured to rotate about a right axle axis, and the right integrated hydraulic transaxle pivotally coupled to the frame such that the right integrated hydraulic transaxle is configured to pivot about a right pivot axis oriented transverse to the right axle axis and parallel to a longitudinal axis of the riding lawnmower system, the right axle axis intersecting a portion of the right integrated hydraulic transaxle;
a right rear drive wheel coupled to the right drive axle of the right integrated hydraulic transaxle, the right rear drive wheel configured to rotate about the right axle axis and to pivot about the right pivot axis with the right integrated hydraulic transaxle; and
a right resilient member, pivoting of the right integrated hydraulic transaxle about the right pivot axis configured to cause compression of the right resilient member; and
a left rear drive system comprising:
a left integrated hydraulic transaxle comprising a left hydraulic pump, a left hydraulic motor and a left drive axle, the left drive axle configured to rotate about a left axle axis, and the left integrated hydraulic transaxle pivotally coupled to the frame such that the left integrated hydraulic transaxle is configured to pivot about a left pivot axis oriented transverse to the left axle axis and parallel to the longitudinal axis of the riding lawnmower system, the left axle axis intersecting a portion of the left integrated hydraulic transaxle;
a left rear drive wheel coupled to the left drive axle of the left integrated hydraulic transaxle, the left rear drive wheel configured to rotate about the left axle axis and to pivot about the left pivot axis with the left integrated hydraulic transaxle; and
a left resilient member, pivoting of the left integrated hydraulic transaxle about the left pivot axis configured to cause compression of the left resilient member.