US 9,808,383 B2
Elevated height wheelchair
James P. Mulhern, Nanticoke, PA (US); and Stephen J. Antonishak, Nanticoke, PA (US)
Assigned to Pride Mobility Products Corporation, Exeter, PA (US)
Filed by PRIDE MOBILITY PRODUCTS CORPORATION, Exeter, PA (US)
Filed on Apr. 18, 2016, as Appl. No. 15/132,148.
Application 15/132,148 is a continuation of application No. 14/572,559, filed on Dec. 16, 2014, granted, now 9,351,889.
Claims priority of provisional application 61/938,880, filed on Feb. 12, 2014.
Claims priority of provisional application 61/916,500, filed on Dec. 16, 2013.
Prior Publication US 2016/0228311 A1, Aug. 11, 2016
This patent is subject to a terminal disclaimer.
Int. Cl. A61G 5/06 (2006.01); A61G 5/04 (2013.01); A61G 5/10 (2006.01); B60K 31/02 (2006.01); A61G 5/12 (2006.01); B60K 31/00 (2006.01)
CPC A61G 5/06 (2013.01) [A61G 5/04 (2013.01); A61G 5/042 (2013.01); A61G 5/104 (2013.01); A61G 5/1059 (2013.01); A61G 5/1078 (2016.11); A61G 5/1089 (2016.11); A61G 5/122 (2016.11); A61G 5/125 (2016.11); A61G 5/127 (2016.11); A61G 5/128 (2016.11); B60K 31/02 (2013.01); A61G 2203/10 (2013.01); A61G 2203/14 (2013.01); A61G 2203/42 (2013.01); A61G 2203/70 (2013.01); B60K 2031/0091 (2013.01)] 31 Claims
OG exemplary drawing
 
1. A powered wheelchair comprising:
a frame;
a lift mechanism supported by the frame;
a seat supported by the lift mechanism, the lift mechanism configured to move the seat between a lowered position and a raised position;
a pair of drive wheels;
at least one drive coupled to the frame and configured to apply a torque to at least one of the drive wheels;
an arm assembly including an arm member that is pivotably coupled to the frame and a wheel coupled to the arm member, the arm member configured to be in a first position relative to the frame when the wheelchair is operating on flat ground and to be rotatable from that first position; and
an arm limiter supported by the frame and configured to inhibit motion of the arm member, the arm limiter including a crank rotatably coupled to the frame at a rotation point, and an elongate lever that is rotatably coupled to the frame at the rotation point, the elongate lever having a first end and a second end opposite the first end, and the second end of the elongate lever is configured to be in selective contact with a surface of the arm member, the arm limiter having a) a first configuration in which the arm member is rotatable from the first position through a first range of rotation, and b) a second configuration in which the arm member is rotatable from the first position only through a second range of rotation that is smaller than the first range of rotation,
wherein the arm limiter is prevented from transitioning into the second configuration when the arm member is rotationally different from the first position.